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2294 lines
86 KiB
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2294 lines
86 KiB
Plaintext
/***********************************************************************\
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|* This file is obsolete now. Update ChangeLog and NEWS files instead. *|
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\***********************************************************************/
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----
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o the configure process can be silent now - use --enable-FEATURE or --disable-FEATURE
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(e.g. --disable-SOUND). Sent by Dale Scheetz (the original author is Alan Shutko).
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o completely refactored UI by Vasyl. Now allows different (port specific) GUIs.
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o Basic XE (OSS Supercart) should work now <Shamus>
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o nonblocking open of sound device on linux <Rudolf>
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o ANTIC.C is no longer LONG_ALIGNMENT dependent. Macros READ_U32/WRITE_U32
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take care of the memory access. <Vasyl Tsvirkunov>
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o a fix in antic.c (lines 408-411) for artefacting on systems requiring
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aligned memory access. <Vasyl>
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Changes in 1.0.7
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----------------
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o atari_x11.c: Added clipping and made the -large and -huge work with XShm.
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The XShm code was rewritten, so that only the screen-portion which
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has been changed is copied to the X-server (on older PCs with
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PCI-graphic this brings a noticable performance gain).
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New options are:
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-clip_x <left offset>
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-clip_width <width>
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-clip_y <top offset>
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-clip_height <height>
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atari.h: commented out USE_COLOUR_TRANSLATION_TABLE because it produced
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funny results with options -large and -huge.
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Rudolf Opalla <rudi@khm.de>
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o introduced autoconf stuff <Krzysztof>
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o win32: standard wave output routines added to sound driver (-wavonly switch
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to disable direct sound) <Krzysztof>
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o sound_update removed from port specific routines (moved to atari.c) and
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some other sound fixes <Krzysztof>
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o unix, windows and dos makefiles rewritten and reorganized <Krzysztof>
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o all open() calls on regular files replaced by fopen(). <Krzysztof>
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o win32 conditionals removed; new win32 port <Krzysztof>
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o atari_sleep_ms() replaced by new function atari_sync() with better
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synchronization code (lasttime is increased by constant interval
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and previously could differ depending on gettime call delay) <Krzysztof>
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o bug causing vesa modes not to be detected correctly fixed. <Krzysztof>
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o cpu_m68k.s is 100% compatible with the cpu.c now <Gerhard>
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o Don Mahurin added sound support to curses version.
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Also Voxware_ routines were renamed.
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o it seems that zero in first byte of block 41/C1 should be interpreted
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as 00, not 0x100 [eg. 1st disk of Big Demo couldn't be read because of
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this]. Jakub Bogusz <qboosh@prioris.mini.pw.edu.pl>
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o double density DCM disks weren't handled properly ("Output
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desynchronized...") [eg. 1st disk of Sweet Illusions demo couldn't be
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read because of this] <Jakub>
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o some preliminary code for UI menu switch for readonly/readwrite disk
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in UI.C. This needs to be discussed first, then finished.
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Changes in 1.0.6 - 2000/10/09
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----------------
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o cpu_m68k.s updated <Gerhard>
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- the rest is Piotr's work:
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o BUGS updated
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o antic: fixed PMG collisions bug in horizontally scrolled lines
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(bug was found by Krzysztof)
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o antic: PMG flickering depends on VDELAY setting
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o makefile.dos: in 1.0.4 BASIC and PDCURSES weren't compilable,
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because of pokeysnd call, while pokeysnd wasn't linked - fixed
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o antic,gtia: few warnings killed
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o devices: -H1..-H4 options work correctly now
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o E_Device, K_Device and AtariEscape moved from atari.c to devices.c
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o E_Device and K_Device ESC codes work only in BASIC version now
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o sio: debug code removed
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o devices, rt-config: H: devices can be set to read-only mode:
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use -hdreadonly option or HD_READ_ONLY config file item
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(0 disables, 1 enables read-only mode). For safety, by default
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it is on
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o BASIC version: EOF in stdin quits emulator. BASIC version can be used now
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with redirected input (from a script file, for example).
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Changes in 1.0.5 - 2000/10/02
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----------------
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o possibility to set color saturation
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Now you can set black level, white level, color intensity and even color
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shift if you prefer artificial palettes.
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Added config option allows to select whether include existing palettes
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into binary. By default artificial palette is generated (by surprise it
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doesn't look very bad)
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New options are:
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-black <black level>
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-white <white level>
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-colors <color intensity>
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-colshift <color shift>
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-realpal <use real palette>
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-oldpal <use old default palette>
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-foxpal <use Fox's palette>
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Krzysztof
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o sound.c got -help <Krzysztof>
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o bug causing vesa modes not to be detected correctly fixed. <Krzysztof>
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o sound_dos.c compiler warnings fixed
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o ui.c - reading of root dirs corrected <Krzysztof>
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o pokey.c - better reading of saved pokey state <Krzysztof>
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o statesav.c - strict version check and version increased to 3 <Krzysztof>
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o binload.c - C flag and boot flag are set now (some programs need it)
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<Krzysztof>
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o joystick autofire emulation (dos and svgalib only). F11 key switches
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between three modes: normal, autofire when fire pressed and autofire
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all the time. It can be quite useful for some games >:) <Krzysztof>
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o gtia.c fix - pm_scanline was too short when HSCROL was used.
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'mountain king' game suffered from this bug. <Krzysztof>
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o atari_x11.c - small fix for keyrepeat (fvwm2, switching back to the
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screen 2 FocusIn requests are generated). <Christian Groessler>
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o DOS SoundBlaster driver updated. <Matt>
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The new SB code is very clean, and should fix the problem that one person
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had with no sound being generated.
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If Atari800 enables near pointers (via __djgpp_enable_nearptr()), you may
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want to define DJGPP_USE_NEARPTR; it will make the SB driver a bit faster,
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as it can avoid an extra buffer copy to the low DOS area.
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o vga_asm.s patched to quell a compiler warning. <Matt>
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o sio.c - new routine to rotate disks and slight parameter change in SIO_Mount
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that allows a disk to be opened read only even if it is a read/write image.
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<Rich>
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o sndsave.[ch] (new module) - writes out .WAV files of arbitrary bitrate.
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<Rich>
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o linux joystick patch - both keyboard emulation and real joystick can be used
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for multiplayer games now. <Jacek>
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Changes in 1.0.4 - 2000/06/30
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----------------
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o Amiga version updated <Sebastian>
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o CRASH menu fixed <Raster>
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--Piotr's changes:
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o UI: added artifacting mode selection
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o DOS/VGA sources moved to 'dos' subdirectory, Makefile.dos and atari_vga.c
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updated
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o DOS/VGA: F8 disabled in UI
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o DOS/VGA: mouse initialized after return from monitor, right button enables
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light pen cursor
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o gtia: TRIG latches (enabled by bit 2 of GRACTL) implemented
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o antic: light pen emulation improved
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o antic: GTIA modes implemented for ANTIC modes 9, 0xb and 0xc
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o atari_screen moved from antic.[ch] to atari.[ch]
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o old BIN loader removed
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o obsolete NAS support removed; Atari_AUDC/AUDF/AUDCTL routines removed - now
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pokey.c directly calls pokeysnd.c
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Changes in 1.0.3 - 2000/06/13
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----------------
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o SVGALIB and Falcon ports save interlaced and non-interlaced screenshots
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by pressing Shift+F10/F10 (this is just to sync it with DOS version)
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-- Piotr:
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o new BIN loader rewritten - hopefully it can load any valid executable.
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Please test if there's a file, which it can't run.
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o special support for Montezuma's Revenge removed - it's not needed
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for playing this game
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o UI:
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- fixed 'Cold Start' item - name was too long
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- fixed background width - was too wide
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- charset extracted from 5200's ROM - menu is visible in 5200 mode
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- whenever prompted for filename, you can cancel with ESC
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- added 'Enter monitor' item
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- added PCX screenshots with user-specified filename
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(F10 and Shift+F10 still generate it automatically)
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-- Raster:
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o hot keys in UI aligned right
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o when CPU encounters invalid instruction (CIM or unassigned
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ESC) the new Crash menu appears. Now you can select Reset,
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Reboot, go to Menu or Monitor. You can also try to continue
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running the program or exit the emulator.
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o CPU.C: CIM instruction emulation doesn't do PC-- so that the
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'continue' function of Crash menu can work
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Changes in 1.0.2 - 2000/05/29
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----------------
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o Matt fixed his DOS SB driver
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-- Piotr's changes:
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o gray.act palette
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o DOS/VGA: assembly part of x_open moved to vga_asm.s as x_open_asm
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- this should make new djgpp happy :)
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o cpu: opcodes $8b and $ab restored - they work different on Atari
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than on C64
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o monitor: READ and WRITE don't quit emulator on error
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o monitor: S can search for any number of bytes
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o monitor: HELP corrected - [] used for optional parameters only
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Changes in 1.0.1 - 2000/05/25
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----------------
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o ANTIC>IA: another PMG speed optimization <Piotr>
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o cpu_m68k.s: updated to reflect recent Piotr's changes <Gerhard>
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o CPU: 6 undocumented instructions fixed <Matt>
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Changes in 1.0.0 - 2000/05/22
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----------------
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o Atari Falcon
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- makes use of draw_display which greatly improves playability
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(on my Falcon040/40MHz most games run at 100% of original speed with
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-refresh=5)
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- Sound_Pause/Continue implemented (no more sound in menu).
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- UI hotkeys implemented (try out Alt+A, for example)
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o UI: hotkeys are listed so everybody can learn them easily
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o new sound card driver for DOS version from Matt Conte <matt@conte.com>
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This allows us to increase replay freq and also implement STEREO sound in DOS
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Try out command line parameters "-dsprate 44100" and maybe also "-bufsize 880"
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(bufsize is 440 bytes by default which I think is too small for higher replay
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rates) <me>
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o fixed some wrong fopen calls - please always use "rt"/"wt" for reading/writting
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text files and similarly "rb"/"wb" for reading/writting binary files.
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-- And Piotr's changes follow:
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o configure program checks endianess and defines ATARI800_BIG_ENDIAN
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if necessary - POKEYSND_BIG_ENDIAN and ANTIC_BIG_ENDIAN removed
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o configure program defines ATARI800_64_BIT if sizeof(long) != 4 - __alpha__
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kludge removed
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o added -fomit-frame-pointer to makefile.dos - with this ebp register can hold
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local variables
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o assembler routines from DOS/VGA port grouped in vga_asm.s - this fixes
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problems with -fomit-frame-pointer and hopefully with new DJGPP - please
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check
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o diskled fixed
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- drawn on screen also when sio patch active
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- support for modes with less than 240 visible lines
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- Atari_Set_LED called only when state changes - this speeds up sio
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and prevents keyboard hang-ups in DOS/VGA with keyboard led
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o DOS/VGA: now middle of Atari screen visible in 320x200
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- previously lines 24..223
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ANTIC/GTIA fixes:
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o PMG flickering corrected again - DL opcode is passed to missiles, lsb of
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address is passed to player 3
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o need_load fixed - correct graphics and timing when DMA switched on and off
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o colour_translation_table fixed
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- now colours in X11/SHM are hopefully correct in all modes except
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artifacting
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- colour_translation_table isn't used unless USE_COLOUR_TRANSLATION_TABLE is
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defined (see atari.h)
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- if used, colour_translation_table should be UWORD with msb = lsb
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o playfield/PMG priorities handling completely rewritten
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- now all playfield/PMG/prior combinations are handled correctly
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- PMG is slightly faster
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Changes in 0.9.9j
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-----------------
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o Amiga port is compilable (Pen, Sound Start/Stop) <Sebastian>
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o Unix port is compilable (Pen, Sound Start/Stop) <cpg>
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o Atari Falcon port is not compilable yet! I left the patches at home :-(
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<my fault>
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o Makefile.unix: call sub-makes with "$(MAKE)" instead of "make". Helps on
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machines where GNU make is not named "make" <cpg>
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o atari.h: set ULONG and SLONG to be unsigned int on Alpha machines,
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as longs there are 8 bytes (64bit). See also TODO file. <cpg>
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o pokeysnd.c: fixed unaligned accesses. Tested on Alpha (= little endian) <cpg>
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o UI: the order of options changed. <Raster>
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o UI: driven by hotkeys diirectly from emulation <Raster>
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Currently DOS and Linux SVGALIB versions only:
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* Hot keys (with left ALT):
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ALT+D Disk management
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ALT+C Cartridge management
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ALT+R Run BIN file
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ALT+Y Select system
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ALT+O Sound Mono/Stereo
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ALT+S Save state
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ALT+L Load state
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ALT+A About
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(by pressing ESC you go back to emulation)
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Other platforms: set alt_function (defined in ui.c) to MENU_xxx (see
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atari.h) and call the UI.
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Example for Disk Management:
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alt_function = MENU_DISK;
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keycode = AKEY_UI;
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And the usual huge list of changes from Piotr follows
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-----------------------------------------------------
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o DD XFD images fixed - now both 128- and 256-byte boot sectors supported
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o cpu.c can be now compiled for using switch() - cpu_nogoto.c is no longer
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necessary (Petr: use -DNO_GOTO when compiling)
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o many 6502's unofficial opcodes fixed
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o 'DMACLT' typo in symtable fixed
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ANTIC/GTIA fixes:
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o collisions in hi-res fixed - now Chicken and Super Bunny work
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o horizontal scroll in modes 8 and 9 fixed
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o PM5 in GTIA 11 fixed
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o mode 2 / GTIA 11 fixed
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o mode 2 / GTIA 10 implemented
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o PMG flickering made more accurate
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o some optimizations in ANTIC - mostly for hi-res modes (drawn with words)
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and for blank lines (drawn with memset, if possible)
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o simplified Save/Load State in ANTIC and GTIA (Petr: ==> state files are no
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longer compatible with previous versions (actually the compatibility's been
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broken a few versions ago already))
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o artifacting works now on long aligning and big endian machines
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(Petr: seems like big endian machines have to define -DANTIC_BIG_ENDIAN for
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proper compiling).
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o DMA for DL fixed
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o color table fix:
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- now table is defined as global and compiled to separate object, so it exists
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once in executable (previously was static - included by both
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platform-specific stuff and ataripcx)
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- '-palette filename' command line option allows loading external palette file.
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Palette should be in '.act' file format, which is supported by Photoshop.
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Format is very simple - 256 times (R,G,B), single byte per component.
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I've implemented this option because I think color table should be fixed.
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At the moment luminaces 14 and 15 are identical and other luminaces
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aren't also linear. I include a palette created by me - fox.act. It has
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linear luminaces, however it is ugly compared to current Atari800 palette
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- default.act. It would be great if someone could create realistic palette,
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best by grabbing graphics from real machine with a video card.
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o fixes for BASIC version
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o mode f / GTIA 11 colours fixed
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o delayed GTIA 11 - colours are propagated to next line. Now
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graphics using dark GTIA 11 lines for colouring gray images is really
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colourful, like on real Atari
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o emulation of a GTIA bug. While turning off GTIA mode while displaying
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hi-res mode, GTIA doesn't back to hi-res, but starts generating 4-colour
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graphics. This fixes title screen in 'Studio Dream' demo.
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Changes in 0.9.9i
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-----------------
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o fixed my stupid bug in Stereo sound emulation (thanks Marek)
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o SHIFT_KEY exported from atari_x11.c now (thanks Mark Watson for the hint)
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o UI: Select System does cancel the selection by Esc correctly now
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(thanks Raster for the hint)
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o SIO: result wasn't set in default: (thanks Sebastian)
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o Amiga changes by <Sebastian>
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-------------
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atari_amiga.c
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old Joystick code was buggy, it does work now.
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supports the global draw_display variable now.
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about Requester works now.
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general cleanup and some comments in atari_amiga.c
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amiga/support.c
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Added
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amiga/ReadMe
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Added
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amiga/Atari800.guide
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has been rewritten (not really finished yet)
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USAGE
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removed old Amiga descriptions and refered to the
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Atari800.guide file
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sio.c
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removed the #ifndef AMIGA. Only one is still left (devices.c,
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that's because I can't test this).
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List of changes from Piotr
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--------------------------
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o ANTIC: WSYNC fixed - changed xpos < WSYNC_C to xpos <= WSYNC_C :)
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This fixes colours in Pitfall II
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o ANTIC: PMG flickering fixed. Data should be taken from data bus,
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not rand(). :) However, it is get now from memory at regPC.
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o monitor: COLPM0 typo in symtable[] fixed
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o IRQ interrupts fixed:
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- are reset by POKEY, not CPU
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- real SIO is faster and more accurate
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- POKEY counters are more accurate
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o diskled: Platform-independent disk LED - drawn on screen.
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Can be disabled with #define NO_LED_ON_SCREEN.
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o DOS version:
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- 320x240 made default video mode
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- keyboard layout PC/Atari can be set at startup with 'KEYBOARD'
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in configuration file or '-keyboard' command line option
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- Num Lock LED indicates current keyboard layout and Caps Lock LED - disk LED,
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if it isn't drawn on screen. Scroll Lock still indicates joy-only mode.
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- paddles/touch pad emulation is enabled with 'MOUSE PAD' in configuration file
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or '-mouse pad' command line option
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Horizontal position of mouse is paddle 0, vertical is paddle 1,
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buttons left and right are buttons of paddles 0 and 1 respectively.
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Tested in ARKANOID and KABOOM. Should be tested on more programs,
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especially those using touch pad.
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|
- light pen emulation is enabled with 'MOUSE PEN' in configuration file
|
|
or '-mouse pen' command line option
|
|
Mouse emulates position of light pen. Left button is pen's button.
|
|
Right button is unused.
|
|
Tested in Atari BASIC only. Should also work in games using light gun.
|
|
|
|
Atari_PEN() has to be added to all platforms. Atari_PEN(0) returns
|
|
horizontal, Atari_PEN(1) vertical position. If light pen emulation isn't
|
|
supported, the function should look like this:
|
|
|
|
int Atari_PEN(int vertical)
|
|
{
|
|
return vertical ? 0xff : 0;
|
|
}
|
|
|
|
o ANTIC: mode 3 can be now artifacted and in GTIA modes 9/11
|
|
(ANTIC mode 2 routines used)
|
|
|
|
o GTIA: missiles optimized a bit
|
|
|
|
o Delay before reading sector 2. Now OVERMIND works with both emulated
|
|
and real SIO
|
|
|
|
o DOS version: sound disabled in UI and monitor
|
|
|
|
o QUIT works when invalid opcode encountered
|
|
|
|
o Monitor: you can enter system commands with !cmd, for example !dir
|
|
|
|
|
|
Changes in 0.9.9h
|
|
-----------------
|
|
|
|
o a big bunch of changes from Piotr, completely rewritten Antic emulation,
|
|
changed Antic<->CPU synchronization, improved sound, improved PCX screen
|
|
shots including interlaced screenshots and much more.
|
|
|
|
The rewritten Antic will need proper testing. Please do test and report
|
|
problems.
|
|
|
|
o new binloader improved, sound improved <Marek>
|
|
|
|
o Amiga updates and general clean up <Sebastian>
|
|
|
|
|
|
Changes in 0.9.9g
|
|
-----------------
|
|
|
|
o STEREO sound support (2 POKEYs) added <Marek>
|
|
|
|
o if STEREO sound is compiled in you can switch between mono/stereo
|
|
output in the F1 menu.
|
|
|
|
o new binary loader improved again <Marek>
|
|
|
|
o curses mode improved (now enables the F1 menu, warm start moved to F8)
|
|
Christian Groessler <cpg@aladdin.de>
|
|
|
|
o a new BRKHERE command for the monitor - if enabled (BRKHERE on) then
|
|
the emulator invokes the monitor when it encounters a BRK instruction.
|
|
Useful only if you use the BRK insn for debugging your own programs.
|
|
Christian Groessler <cpg@aladdin.de>
|
|
|
|
o new Amiga updates from Sebastian Bauer <sebauer@t-online.de>
|
|
DEFAULT_CFG_PATH
|
|
To alter the default config path
|
|
(if not defined the orginal path is used)
|
|
|
|
SUPPORTS_ATARI_CONFIGINIT
|
|
The port provides a function Atari_ConfigInit() which
|
|
inits the configuration to default values.
|
|
|
|
SUPPORTS_ATARI_CONFIGSAVE
|
|
The port provides a function Atari_ConfigSave() to save port
|
|
specific configuration lines in the config file.
|
|
|
|
SUPPORTS_ATARI_CONFIGURE
|
|
The port provides a function Atari_Configure() for the lines
|
|
not recognized by RtConfigLoad()
|
|
|
|
DONT_USE_RTCONFIGUPDATE
|
|
RtConfigUpdate() is not used and compiled (e.g. the Amiga Port
|
|
provides an own GUI for configuration and so this is not needed
|
|
here)
|
|
|
|
A list of bugfixes from Piotr Fusik < pfusik@elka.pw.edu.pl >
|
|
-----------------------------------
|
|
|
|
* NMIST fixed - antic.c
|
|
|
|
* invalid color of all multicolor players in same place fixed - antic.c
|
|
|
|
* blank characters can be inverted - antic.c
|
|
|
|
* PMG DMA in every scanline - antic.c
|
|
|
|
* DL can not cross 1k boundary - antic.c
|
|
|
|
* PENV set to $FF - antic.c
|
|
|
|
* B flag set on BRK and PHP, reset on NMI and IRQ, can not be changed,
|
|
BRK doesn't care about I flag - cpu.c, monitor.c
|
|
|
|
* TRIG2=1 on XL/XE, PAL=1 on PAL machine - gtia.c
|
|
|
|
* typos in symtable fixed - monitor.c
|
|
|
|
* 'q' to quit displaying display list - monitor.c
|
|
|
|
* flags in "SHOW" displayed in a readable way - monitor.c
|
|
|
|
* new "STACK" command in monitor - monitor.c
|
|
|
|
* all printable ASCII characters displayed in "M" - monitor.c
|
|
|
|
* "ANTIC" registers display fixed - monitor.c
|
|
|
|
* better "HELP" in monitor - monitor.c
|
|
|
|
* write protection checked in ATR header and returned in drive status
|
|
- atari.h, sio.c
|
|
|
|
* CRITIC flag reset and C flag set when returning from emulated SIO - sio.c
|
|
|
|
|
|
|
|
Changes in 0.9.9f
|
|
-----------------
|
|
|
|
o new binary loader fixed again (some binary files do not set starting
|
|
address) <Marek>
|
|
|
|
Changes in 0.9.9e
|
|
-----------------
|
|
|
|
o new binary loader fixed (some binary files contain additional $FF,$FF
|
|
in the block headers) <Marek>
|
|
|
|
o X11 keyboard autorepeat turned off during emulation <Marek>
|
|
|
|
o Antic: border color in GTIA 0x80 modes should be taken from $d012 not $d01a
|
|
<ERU>
|
|
|
|
o GTIA: return 0x0f for all write-only registers <ERU>
|
|
|
|
o monitor: added filename to write (memory dump) <ERU>
|
|
|
|
o svgalib: don't abort if joystick cannot be opened. Also allow cursorpad
|
|
keys/ctrl key for joystick emulation (enable it by defining
|
|
USE_CURSORBLOCK) <Christian Groessler>
|
|
|
|
|
|
Changes in 0.9.9d
|
|
-----------------
|
|
Almost all changes in this version came from Marek Zelem. Thanks to him
|
|
we got digital sound effects (including keyboard clicking sound and other
|
|
sound effects) in all ports of Atari800 now. This is very cool.
|
|
Also svgalib and X11 support were improved. And a new binary loader was added.
|
|
|
|
+ New features for end users:
|
|
- digital (volume only) sound (finally!)
|
|
- emulation of console and disk drive sound
|
|
- improved keyboard, joystick and screen support under X11
|
|
- REALTIME mode for Linux - might speed up the emulator a bit
|
|
- new routine for direct loading of single binary files
|
|
- new cmdline command '-run program' that runs a program when emulator starts
|
|
- fixed a bug in XL/XE mode after warmstart
|
|
|
|
List of changes for programmers:
|
|
|
|
o keyboard in X11 didn't generate KEYPRESSED - fixed. Also second joystick
|
|
emulation was fixed. AKEY_HELP added. <Marek>
|
|
|
|
o X11 color support: if more than 256 colors then use full 256 colors in the
|
|
emulator (in 8bpp only 128 colors are used) <Marek>
|
|
|
|
o support for REALTIME process under Linux added. This is disabled by default
|
|
since it might hog the whole operating system. On slower systems this might
|
|
increase the emulator speed so test it out if you run on a 486. <Marek>
|
|
|
|
o atari_sleep_ms(100) added to ui() into cycle for reading pressed keys.
|
|
Emulator thus doesn't hog the operating system while waiting for a keypress.
|
|
This is essential when Atari800 runs in REALTIME mode under Linux. <Marek>
|
|
|
|
o digital sound (samples) emulation was added. It's enabled by default but
|
|
you can disable it by defining NO_VOL_ONLY (who would disable it, anyway?)
|
|
For better syncing a new global var cpu_clock was added. It's updated in
|
|
cpu.c, cpu_nogoto.c after every instruction (cpu_m68k.s is not updated yet)
|
|
This cpu_clock measures the number of physical ticks since the emulation
|
|
started. <Marek>
|
|
|
|
o console sound emulation added (keyboard clicking sound and the beep that
|
|
is produced by writting to CONSOL register). Can be disabled by a #define
|
|
<Marek>
|
|
|
|
o disk I/O transfer sound emulation added (can be disabled by a #define).
|
|
Hardcoded for 19200 bps for now. <Marek>
|
|
|
|
o the cmdline option '-refresh <num>' defines how often the screen is to
|
|
be generated. Previously if num > 1 the screen generating was skipped
|
|
(num-1) times but also interrupts weren't generated, no sound was produced
|
|
and CPU ran a bit faster (full 114 cycles per screen line which is not
|
|
possible under normal circumstances). Seems like this was meant for the
|
|
BASIC or CURSES emulations.
|
|
In this version the code for num > 1 was changed so that all interrupts
|
|
are still generated, sound works OK and CPU runs at the right speed.
|
|
Just the screen is not generated (antic.c) and not drawn (only in x11.c
|
|
and svgalib.c for now - other platforms will be updated ASAP).
|
|
This is driven by global var 'draw_display'.
|
|
This new approach can be disabled anytime by defining VERY_SLOW. <Marek>
|
|
|
|
o Warm Start on 800XL/XE fixed - turns on the ROM OS now. <Marek>
|
|
|
|
o new BIN file loader added. Does not need a temporary .ATR disk image.
|
|
Should be much better than the original attempt. Define USE_NEW_BINLOAD
|
|
and test it out. <Marek>
|
|
|
|
o atari_x11.c: if screen is not visible do not update the emulated screen.
|
|
Improves speed and is useful e.g. for listening the Atari800 music. Simply
|
|
cover the emulator window with another window and the emulation runs faster.
|
|
<Marek>
|
|
|
|
o atari_svgalib.c: support for running on an inactive virtual console, if
|
|
allowed by the underlying svgalib. <Marek>
|
|
|
|
o sound recording added. Global variable 'sound_record' contains a file
|
|
descriptor. If it's valid the played sound is written to the file.
|
|
It's up to atari_*.c to turn the sound recording on/off. So far supported
|
|
by CTRL-F8 under X11 only. <Marek>
|
|
|
|
o atari_x11.c and joystick: if the mouse is not over the Atari800 window
|
|
(doesn't have the input focus) the joystick is not read.
|
|
Also a preliminary 'experimental_mouse_joystick()' was added. As the name
|
|
says this is an experiment of joystick emulation using the mouse. Not used
|
|
yet. <Marek>
|
|
|
|
o trace-ing in monitor: doesn't display 24 insns after a single step. <Marek>
|
|
|
|
o Jari Karppinen sent a patch for new Allegro lib (v3.12)
|
|
|
|
o Christian Groessler sent a little patch for joystick under Linux
|
|
|
|
o all gets() were replaced by fgets() since the compiler complained.
|
|
|
|
o new configure stuff - configure.c, config.in, config.h and Makefiles
|
|
Marek rewrote the configure stuff and introduced the config.in file. This
|
|
is a great idea (something the emulator source needed for a long time).
|
|
I tried to improve it even more (getting the idea from Linux kernel config
|
|
stuff). It's not perfect yet but the main purpose - allow people to see
|
|
and change all used #defines - works now. Also, my idea was to allow people
|
|
to compile with or without ZLIB without editing the Makefiles and adding
|
|
#define and -lz. This works too. Of course there's still a lot of work left,
|
|
for example the (premise) as Marek calls it could allow logical operators
|
|
like OR, NOT and AND (using C symbols |, !, & or even ||, &&)
|
|
|
|
The .atari800 file format has been changed. The positive thing is that it's
|
|
now compatible between all platforms. The negative thing is that I had to
|
|
move it from $HOME dir into the current source dir in order to get the
|
|
include of Makefile working under DOS. I don't know make and Makefiles well
|
|
so all fixes are welcome.
|
|
|
|
|
|
Changes in 0.9.9c
|
|
-----------------
|
|
|
|
+ New features for end users:
|
|
- keyboard autorepeat in UI
|
|
- separate current directories for operations in UI
|
|
- better Linux SVGA support (including new 320x240 graphics mode)
|
|
- new Linux SVGALIB keyboard handler
|
|
- better sound (interpolation, less system load, configurable sound delay)
|
|
|
|
! coding style:
|
|
- please do not change indentation of a source file unless you rewrote major
|
|
part of it - this makes 'diff' impossible to use and causes hard time for
|
|
people tracking changes between versions
|
|
- use TABelators instead of spaces, if possible (set TAB size to 4 spaces)
|
|
- you can use 'indent -kr -nce -ts4 source.c' to format the source file
|
|
- if you're sending me diffs then please use diff -u (Unified), if possible
|
|
|
|
List of changes for programmers:
|
|
|
|
o TODO updated - volunteers, please read it.
|
|
|
|
o created new function 'atari_sleep_ms(ULONG ms)' that should be used
|
|
everywhere in the emulator where you need to delay the execution for a while
|
|
in a portable manner. Right now used in ui.c for keyboard autorepeat.
|
|
#include "atari.h" for that.
|
|
Architectures without usleep() and nanosleep() will edit just this function
|
|
instead of polluting the whole source code by many #ifdefs.
|
|
|
|
Similar thing needs to be done in the syncing code for main emulator loop
|
|
in the atari.c.
|
|
|
|
o removed ALL warnings during compilation on DOS and Linux, with help of
|
|
Jari Karppinen.
|
|
Atari800 for DOS is known to have problems compiling under latest DJGPP 2.02
|
|
and/or with latest Allegro 3.12. This will be fixed as soon as I download
|
|
the above mentioned dev tools.
|
|
|
|
o ui.c: the keyboard repeat works on all platforms (thanks to 'atari_sleep_ms')
|
|
some array size hardcoded constants replaced by #define FILENAME_SIZE
|
|
memcpy(fname, ' ') and strcpy(fname, " ") replaced by memset
|
|
|
|
o pokey.c: ULONG DivNIRQ[], DivNMAX[], TimeBase replaced by 'unsigned int'.
|
|
This removed the warnings in Pokey[Read|Save]State(). It should not have any
|
|
negative effects on machines where sizeof(long int) = sizeof(int).
|
|
Linux-ia32, DOS/DJGPP and Atari Falcon/TT machines (all using GCC)
|
|
should be OK.
|
|
Is there an other computer/compiler with 16-bit ints or 64-bit longs that
|
|
runs Atari800? If yes, state saving/restoring will neither work there,
|
|
I think. And 16-bit ints would probably broke most of the emulator, anyway...
|
|
|
|
|
|
Following changes in 0.9.9c done by Krzysztof Nikiel <krzych00@priv7.onet.pl>
|
|
|
|
o new Makefile.linux (Makefile.unix still works for Linux)
|
|
|
|
o pokeysnd.c: added sound interpolation to reduce dsp frequency interference
|
|
(now should work good even at low rates) and required main output loop
|
|
reorganization.
|
|
|
|
o sound.c: added correct dsp device handling. Now shouldn't slow down
|
|
the emulation.
|
|
added option '-dsprate <rate>' and changed default rate to 22050 Hz (why?)
|
|
added option '-snddelay <miliseconds>' that allows tuning sound delay
|
|
according to interval betwen sound updates
|
|
|
|
o sound_dos.c: buffersize increased from 400 to 440 bytes
|
|
|
|
o sbdrv.c: divided sound buffer into four parts.
|
|
|
|
o Linux svgalib: better utilized svgalib capabilities;
|
|
used mode 320x240x256;
|
|
removed vgagl dependency;
|
|
added status of disk LED;
|
|
|
|
o ui.c : bug in SaveState - no terminating zero at end of string
|
|
separate current dirs for different operations
|
|
refresh screen bug in GetKeyPress
|
|
added keyboard autorepeat
|
|
|
|
|
|
Changes in 0.9.9b
|
|
-----------------
|
|
|
|
o fixed SD and ED floppy formatting in SIO code (sector size is hardcoded)
|
|
|
|
o monitor's commands 'COLDSTART' and 'WARMSTART' perform the reboot
|
|
immediately now (previously you have to give it the 'cont' command
|
|
to actually perform the reboot).
|
|
|
|
o statesave bug in SaveINT fixed (negative integers weren't saved
|
|
correctly). <Krzysztof>
|
|
|
|
o Makefile.unix updated - the rawkey lib is now essential for the
|
|
linux-svgalib version of Atari800.
|
|
|
|
o Linux-svgalib version now recognizes F8 keypress for jumping to monitor
|
|
|
|
|
|
Changes in 0.9.9a
|
|
-----------------
|
|
|
|
o full NOVA graphics support on Falcon including double sized screen
|
|
|
|
o double buffering of screen on NOVA gfx
|
|
|
|
o 16,32-bit X11 shared memory support. Compile with -DSHM. <Cameron>
|
|
Quote: "Just in case you're interested, here's a patch for Atari800 that will
|
|
allow shared memory to be used in 16-bit and 32-bit colour modes. There
|
|
isn't much of a performance benefit on my system (the emulator's CPU usage
|
|
drop from around 68% to 53%, but the X server rises from 5% to 28%) but it
|
|
might be useful in some environments.
|
|
|
|
It's a bit of a hack since it adds another copy of each frame's data, but
|
|
it's probably the best that can be done without changing the
|
|
non-interface-dependent code."
|
|
|
|
o SIO fix: register A should always contain 0 on return from ROM(?) <Marek>
|
|
|
|
o Unix fix: call select() in the main sync loop to reduce system load <Marek>
|
|
|
|
o SIO format fix: realsize is set - formatting should work (7 Cities of Gold)
|
|
<Jindroush>. Though I think we probably should not call SizeOfSector since
|
|
someone might want to reformat double density diskette to single density.
|
|
Thus I think realsize = 128; should work better. Let's test that.
|
|
|
|
o Linux SVGALIB - proper keyboard support implemented using the rawkey lib
|
|
(http://sunsite.unc.edu/pub/Linux/libs/ui)
|
|
|
|
|
|
Changes in 0.9.8
|
|
----------------
|
|
|
|
o antic.c: artif_mode is up to 4 (fixed) <Rich>
|
|
|
|
o compfile.c: ReadAtariExe() for direct loading of single EXE files (actually it
|
|
creates a temporary ATR file) <Rich>
|
|
|
|
o sio.c: formatting of ATR disk images fixed <Rich>
|
|
|
|
o supercart.c: fixed RTIME month (months are zero indexed) <Rich>
|
|
|
|
o ui.c: added Run Exe option. The LoadState file calls fileselector now.
|
|
|
|
o rt-config.c: added two config options: EXE_DIR and STATE_DIR
|
|
|
|
o compfile.c: fixed a serious bug when using prepend_tmp_file()
|
|
|
|
|
|
Changes in 0.9.8g
|
|
-----------------
|
|
|
|
o Falcon030 direct VIDEL programming for 336x240 resolution, NOVA screen saver
|
|
|
|
o START/SELECT/OPTION keys on Atari fixed
|
|
|
|
o DOS drives for Atari (still needs to be fixed)
|
|
|
|
o "Load State", "Save State", "Back to emulated Atari"
|
|
"Cold/Warm Start" reboots machine immediately
|
|
|
|
o fixed the CPU opcode 0xcb and removed the BCD tables definitely
|
|
|
|
|
|
Changes in 0.9.8f
|
|
-----------------
|
|
|
|
o PAGE BASED memory access implemented (partially). See memory*.[ch] files
|
|
and possibly #define PAGED_MEM in memory.h to see the (speed) difference.
|
|
<Jason>
|
|
|
|
o cpu.c: BCDtoDEC and DECtoBCD removed.
|
|
WARNING - cpu_nogoto.c is out-of-date!
|
|
|
|
o cpu_asm.c, cpu_m68k.s updated <Gerhard>
|
|
|
|
o double buffering of screen output on Atari port <Gerhard>
|
|
|
|
o little fixes and general source cleanup (rcsid's were removed, at last)
|
|
<Jason>
|
|
|
|
|
|
Changes in 0.9.8e
|
|
-----------------
|
|
|
|
o Antic address counters fixed (both DisplayList and ScreenAddress). Salmon
|
|
Run and other games should now scroll the screen correctly. The bug was found
|
|
by Jindroush.
|
|
|
|
o SelfTest must be disabled when OS ROM is disabled (suggested by Jindroush).
|
|
|
|
o cpu_m68k.s is corrected (stack bug found and fixed). Spelunker runs now.
|
|
<Gerhard>
|
|
|
|
|
|
Changes in 0.9.8d
|
|
-----------------
|
|
|
|
o introduced #ifdef ZLIB_CAPABLE. Emulator is now compilable without
|
|
the zlib files.
|
|
|
|
o deleted file 'djgpp.h' and added O_BINARY to all O_RDONLY in open() calls.
|
|
|
|
TODO: update UI and add there menu items for state saving and restoring
|
|
|
|
|
|
Changes in 0.9.8c
|
|
-----------------
|
|
|
|
o atari.c contains three functions that should rather be port-specific:
|
|
- zlib_capable() should return TRUE if we're linked against ZLIB
|
|
- prepend_tmpfile_path() should insert path to a Temp dir to supplied buffer
|
|
- ReadDisabledROMs() should read ROM files from disk instead from state image
|
|
The functions are not written yet (they just return FALSE or something like
|
|
that). Emulator code is not compilable without zlib header files...
|
|
|
|
o cpu_m68k.s contains GetByte, PutByte and GenerateIRQ now. It's faster.
|
|
<Gerhard>
|
|
|
|
|
|
Changes in 0.9.8b
|
|
-----------------
|
|
|
|
o SIO bug fix: sectors are counted from 1! <Jindroush>
|
|
|
|
o new icon for Atari800 emulator
|
|
|
|
o State Saving - a new feature that allows saving the state of emulated
|
|
environment anytime (in the VBL, actually) and restoring it later.
|
|
<Rich>
|
|
|
|
o cpu_m68k.s (assembler module for CPU 6502 emulation on M680x0 machines)
|
|
was updated (undocumented commands), corrected (Bruce Lee works now)
|
|
and greatly improved (profilling support, speed). <Gerhard>
|
|
|
|
|
|
Changes in 0.9.8a
|
|
-----------------
|
|
|
|
o added compfile.c for handling DCM and ZLIB compressed files. SIO module
|
|
updated. Please add call to 'Clear_Temp_Files()' into Atari800_Exit() in
|
|
all Atari800 ports. <Rich>
|
|
|
|
o some more printfs changed to Aprints (not sure if everything still
|
|
works correctly in all ports). <Rich>
|
|
|
|
o CTIA (artifacting mode 4) added. <Rich>
|
|
|
|
o DOS port: vertical retrace control in display functions (animations
|
|
are now much smoother) for both "official" and Allegro Dos versions.
|
|
It will probably need a fast CPU to work fine.
|
|
Vertical retrace is normally turned off, it may be activated by command
|
|
line '-vretrace' option or by adding 'VRETRACE=1' to atari800.cfg. <Kuba>
|
|
|
|
|
|
Changes in 0.9.7
|
|
----------------
|
|
|
|
o CPU.C has got several new macros for stack (PH, PHW, PL) and memory
|
|
access (dGetByte, dPutByte, dGetWord). This is intented for easier
|
|
implementation of future memory management. <Jason>
|
|
|
|
o new command line switch "-nopatchall" and option in config file
|
|
"ENABLE_ROM_PATCH". If you disable ROM patches (either by setting the
|
|
ENABLE_ROM_PATCH to 0 or by using "-nopatchall") it will automatically
|
|
disable the SIO patch as well. But the main purpose of this is to get
|
|
a clean Atari800 ROM so Self-Test is happy when testing CRC and
|
|
some games that search for certain device in HATABS do work now.
|
|
<idea by Jindroush>
|
|
|
|
o new undocumented GTIA priority ("transparent missiles") added. The 5th
|
|
player colour of missiles is transparent in mode 9 and 11.
|
|
Also it fixes a bug in the earlier implementation of gtia mode 11
|
|
There is also a major change in the way priorities are handled which
|
|
is designed to be faster somewhat, it seems to help a bit with demos
|
|
that cover the screen with players. It will probably not help too much
|
|
for other programs. <Perry>
|
|
|
|
o #define BIG_ENDIAN -> POKEYSND_BIG_ENDIAN (why Linux-ix86 defines
|
|
BIG_ENDIAN???). <Perry>
|
|
|
|
o NTSC patch to get Joust running under A5200. <Perry>
|
|
|
|
o new: support of R-Time 8 cartridge. Try to type 'date' or 'time' under
|
|
SpartaDOS. <Jason>
|
|
|
|
o new: artifacting in ANTIC mode 2. <Perry>
|
|
|
|
o PM DOS version: sound routines (DOSSOUND.C) do not need SEAL library
|
|
as it uses ALLEGRO lib now. ALLEGRO is capable of sound card auto detection.
|
|
New code uses just double buffering (previously tripple buffered) and the
|
|
value of gain was reduced to fix some problems with digital sound.
|
|
Edit ALLEGRO.CFG to change sample rate and thus sound quality.
|
|
<Perry>
|
|
|
|
o CPU 6502 emulation core adapted to not use goto's all over the place.
|
|
Also the jump table was replaced by switch() statement, which should be
|
|
optimized into jump table by any modern compiler, anyway.
|
|
This has various results - under MSVC it speeded up the emulation,
|
|
while under GNU C on MC68040 it actually slowed the emulator down
|
|
(about 10%, which is too much). The new core is available in file
|
|
CPU_NOGOTO.C and is not used by default, however you may experiment
|
|
with it under your architecture. <Rich>
|
|
|
|
o SIO DVSTAT byte 1 changed from 128 to 255 in order to get Strip Poker
|
|
running. <Rich>
|
|
|
|
o WIN32 related additions and changes <Rich>
|
|
|
|
o stricmp() -> strcasecmp() in ui.c
|
|
|
|
o TVmode enum members PAL and NTSC had to be changed to TV_PAL and TV_NTSC
|
|
(PAL and NTSC were already defined in falcon.h header file)
|
|
|
|
o ESCape code for SIO invoking (at 0xe459) has got an additional check to
|
|
ensure that SIO emulation layer is not called by mistake when CPU gets
|
|
some random data instead of instructions (it used to cause mysterious
|
|
locks up of emulator). All other system patches should be protected this
|
|
way, I think.
|
|
|
|
o ADDLOG and BACKUP_MSG were replaced with one universal routine in log.c
|
|
called Aprint (syntax same as printf). All printf() should be replaced
|
|
with this Aprint() routine that buffers the messages on systems where
|
|
the emulator runs in a special graphics mode (DOS/Falcon/Win32) and does
|
|
not want to have screen filled with a mess instead of debug reports.
|
|
|
|
o Falcon port cleaned up a lot: cflib removed, three different routines
|
|
for chunky-to-planar conversion in 320x240, 352x240 and 384x240 resolutions
|
|
were replaced with one universal routine that works in any resolution and
|
|
centers the screen view automatically. The default resolution for Falcon
|
|
is 336x240 now. It also is NOT a Falcon specific port anymore, as it now
|
|
supports any Atari compatible hardware with MC68020 or higher and 8-bit
|
|
color graphics (320x240 is the minimum resolution for starting emulator).
|
|
It also supports LED emulation (floppy LED blinking during SIO activity).
|
|
|
|
o source is compilable with -Wall, all previously uninitialised variables are
|
|
set to 0.
|
|
|
|
o UI: long file names in Disk Selection dialog are shortened now. <Jindroush>
|
|
|
|
o Colour Artifacting! Use '-artif <MODE>' command line switch to enable
|
|
the artifacting. Mode is number between 0 and 3. <Perry>
|
|
|
|
o the WIN32 specific code for artifacting in antic was removed.
|
|
|
|
o DOS specific files clean up and fixes (a lot). <Golda>
|
|
|
|
o PIA: fixed support for four joysticks in Atari800, tested on some games.
|
|
Improved emulation of joystick ports on XL/XE. Some games obviously
|
|
switch the ports into output state(!) and then read it. One would say
|
|
there is nothing but $FF when the port is in output state and you read
|
|
from it, but the real life is different. Atari800 emulator now supports
|
|
this hardware trick correctly. <Golda>
|
|
|
|
o UI: better directory tree browsing support in Select Disk, in MS-DOS you
|
|
can even select disk drives. <Golda>
|
|
|
|
|
|
Changes in 0.9.6
|
|
----------------
|
|
|
|
o DOS: keyboard and joystick handling changed a lot. Joysticks emulated
|
|
on keyboard can now be freely defined to (nearly) any key combinations
|
|
using comfortable JOYCFG.EXE tool. Besides, there are two modes of
|
|
keyboard: Joystick mode and Normal mode. In Joystick mode the keypresses
|
|
to joystick predefined keys are not passed to emulated environment.
|
|
You can switch between Joystick and Normal mode on-the-fly by pressing
|
|
the F7 key. <Golda>
|
|
|
|
o Falcon: NOVA graphics extended: 336x240 or 672x480 (double size)
|
|
|
|
o UI: the too fast autorepeat was fixed - by disabling the repeat altogether.
|
|
|
|
o SIO: serious bug in CopyToMem fixed. No more rewritten ROM OS. <Jindroush>
|
|
|
|
o ANTIC patch: no player DMA without missile DMA. <Perry>
|
|
|
|
o SIO: missing 'else' in DIR routines. <Perry>
|
|
|
|
o Allegro VGA: updated Makefile and fixed ShutdownVGA(). <Perry, Golda>
|
|
|
|
o VCOUNT patch <suggested by Thor, but developed and tested by Perry>
|
|
|
|
o PIA_Initialise() should initialise PORTA to 0.
|
|
|
|
o PIA registers are mirrored not only in Atari800, but in XL/XE models
|
|
as well (thus addr&=0xff03). Bounty Bob runs now?
|
|
|
|
o DOS: VESA2 mode support (about three times faster than X-mode). VESA2
|
|
also preserves the refresh rate. You can disable VESA2 modes by switch
|
|
-novesa. Also colour pallete initialisation is faster now. <Golda>
|
|
|
|
o DOS: Atari_Set_LED function (use -DSET_LED to enable that). <Golda>
|
|
|
|
o UI: the last ESC keypress is not passed to the emulated program anymore.
|
|
<Golda>
|
|
|
|
o Monitor: pressing [Return/Enter] can be used for single stepping as well.
|
|
<Golda>
|
|
|
|
o new routine for saving of screenshot in 336x240 size as PCX. So far used
|
|
in DOS and Falcon ports (press F10 to save current screen into a file).
|
|
<Golda>
|
|
|
|
o the Atari keyboard should now react quickly enough. DOS port contains
|
|
keyboard buffer for last two keys. <Golda>
|
|
|
|
o fix for initialisation of PORTA <David Firth>
|
|
|
|
o DOS port: better joystick autodetection <Michael Beck>
|
|
|
|
o several fixes for more ANSI like C code <various people>
|
|
|
|
o ANTIC: fix for DLIST counter. <Thor, Perry>
|
|
|
|
o ANTIC: several more hardware registers are unreadable. <Perry>
|
|
|
|
|
|
Changes in 0.9.5
|
|
----------------
|
|
|
|
o ANTIC: fix for scrolling of empty lines. <Perry>
|
|
|
|
o CPU: little fix in remembering last N jumps. <Golda>
|
|
|
|
o new command line option: '-basic' to override Hold_Option in cfg file
|
|
|
|
o UI: you can now go into folders when selecting image in Disk Management
|
|
<Preston>
|
|
|
|
o DOS port - finally full resolution 320x240, 320x480 interlaced. <Golda>
|
|
|
|
o SIO: ATR images created by SIO2PC are readable now. Also Read/Write
|
|
Config was updated to reflect real XF551. <Michael>
|
|
|
|
o monitor continues last command by pressing [Return/Enter] key. <Michael>
|
|
|
|
o PIA: reading PORTA fixed (now works exactly like real Atari800,
|
|
not compatible with Atari5200 yet). <Perry>
|
|
|
|
o UI fix: it's possible to disable disk drive by [Space] again.
|
|
|
|
o Gtia fix: CONSOL (Start/Select/Option keys) handling. <Perry>
|
|
|
|
o Pokeysnd: poly4 and poly5 bit fields were changed for more accurate
|
|
sound emulation. The original values are still available with
|
|
-DPOKEY23_POLY. <Perry>
|
|
|
|
|
|
Changes in 0.9.4
|
|
----------------
|
|
|
|
o CPU fixes: several unofficial instructions compared with real
|
|
Atari800XE and their emulation fixed. ADC/SBC "V" bit bug found
|
|
and fixed (Thor's code used, which in turn was taken from Frodo
|
|
emulator, AFAIK). Compatibility greatly improved again! <RASTER>
|
|
|
|
o Antic fix: cycle counting when DMA is disabled (improves sound
|
|
quality in non-interrupt driven sound update routines). <Perry>
|
|
|
|
o Voxware sound driver updated (tested under Linux).
|
|
pokey11.[ch] files removed. <Robert Brewer>
|
|
|
|
o the crashing in UI when switching to Atari5200 mode fixed. <Perry>
|
|
|
|
o internal monitor improved (symbolic names for often used hardware
|
|
registers etc). Line assembler implemented. Single instruction
|
|
step mode implemented.
|
|
Monitor remembers not only last N PC addresses, but also
|
|
last N jumps. To enable these features edit your Makefile
|
|
CFLAGS = -DMONITOR_BREAK -DMONITOR_HINTS -DMONITOR_ASSEMBLER.
|
|
<Golda>
|
|
|
|
o additional WIN32 code (Atari800 User Interface is used in
|
|
Windows port now) <Rich>
|
|
|
|
o all Hardware_GetByte(address) routines return 0xff for unknown
|
|
address now.
|
|
|
|
o fixed several files so Makefile.allegro works now. <Perry>
|
|
|
|
o NMIEN is not readable now. <Thor>
|
|
|
|
|
|
Changes in 0.9.3
|
|
----------------
|
|
|
|
o POKEY interrupts implemented (inspired by Thor's version).
|
|
Ghostbusters run now! :-)
|
|
|
|
o NOVA graphics support on Atari TT/Falcon computers finished.
|
|
Atari800 is no longer Atari Falcon specific port, now it works
|
|
on any TOS compatible machine with MC68020 or higher and a NOVA
|
|
graphics card (please test in on Medusa, Hades and Milan machines)
|
|
|
|
o A special check for pending IRQ put into CLI, PLP and RTI insns.
|
|
It's a macro for speed reasons, though a function might be more
|
|
appropriate.
|
|
|
|
o A new function GenerateIRQ() was written in CPU module and is used
|
|
where needed (ATARI and POKEY modules).
|
|
|
|
o Handling of IRQ's changed. Before, we tested for IRQEN (is interrupt
|
|
enabled?) and then (in positive case) we set IRQST.
|
|
Now, we always set the IRQST and then we take an action only if
|
|
IRQEN is OK. I don't know if it's OK, I have just been told that
|
|
more demos work with this.
|
|
|
|
o all HardwareGetByte(address) routines return now 0 for unknown
|
|
address (probably not ideal, but deterministic at least).
|
|
|
|
o several routines from ANTIC, CPU and POKEYSND modules moved to
|
|
POKEY module, where they actually belong.
|
|
|
|
o CPU emulation fixed (INDIRECT_X mode was overflowing) <Thor,
|
|
Golda, RASTER>
|
|
|
|
o CPU and Antic speeded up *slightly* by using type casts instead
|
|
of direct anding with 0xff (the compiler got a chance to
|
|
optimize it at least). <RASTER>
|
|
|
|
o a lot of uneccessary castings to (UWORD) and (UBYTE) was removed
|
|
from CPU emulation
|
|
|
|
o DiskDir of UI enhanced - now you can define up to eight
|
|
directories where disk images are stored - then you can
|
|
go through these directories in Disk Management by pressing
|
|
TAB key. <Golda>
|
|
|
|
o fixed sorting of file list in Disk management in DOS port
|
|
(a speciality of strcmp() function of DJGPP libc). <Golda>
|
|
|
|
|
|
Changes in 0.9.2
|
|
----------------
|
|
|
|
o LPTjoy implemented. Now you can connect up to three old style
|
|
CX-40 (Atari, Amiga digital joysticks) to the printer ports
|
|
of your PC (via a very simple interface). Then you just specify
|
|
"-LPTjoy1" on command line for joystick on LPT1 etc.
|
|
LPTjoy idea came from Petr Sumbera.
|
|
|
|
o m68k assembler CPU emulation was updated to reflect recent
|
|
changes in CPU module <Empty Head>.
|
|
|
|
o preliminary support for NOVA graphics on Falcon
|
|
|
|
o Allegro joystick routines slightly improved (now you can
|
|
play even without real joystick)
|
|
|
|
o Atari800Win changes were put in the main source tree <Rich>
|
|
|
|
o after selecting another OS from UI emulator doesn't hang if
|
|
there is no ROM file.
|
|
|
|
|
|
Changes in 0.9.1
|
|
----------------
|
|
|
|
o new POKEY v2.4 with sound channels filtering! Exclusively
|
|
written by Ron Fries for Atari800 emulator. Thanks, Ron!
|
|
|
|
o merge of Perry's and (RASTER & Petr)'s source tree - great!
|
|
Current source can be compiled for DOS by either Makefile.dos
|
|
or by Perry's Makefile.allegro. Perry's Makefile needs DOS game
|
|
library Allegro. The only functional difference between these
|
|
two DOS versions is that Makefile.allegro enables keyclicks
|
|
(due to different sound handling).
|
|
|
|
o major rewrite of DOS keyboard emulation - now allows two
|
|
modes of operation: native (the labels on English PC keyboard
|
|
are valid) and original (the keyboard layout is the same as
|
|
the original Atari800 keyboard). You can switch between these
|
|
two modes on-the-fly by pressing Control+F1 and Shift+F1).
|
|
Better handling of START/SELECT/OPTION keys (these console keys
|
|
are independent of the rest of keyboard).
|
|
Screen view movement changed to Control-numeric pad (just
|
|
like emulated joy, but with Control key). <RASTER>
|
|
|
|
o ANTIC speeded up by narrowing the screen width to 42 chars
|
|
(originally it was 48 chars wide, but no TV can show more
|
|
than about 43 chars..). This should speed things up for
|
|
about 10% in wide modes and PM graphics. <Perry>
|
|
|
|
o Emulation of 320 kB of memory added. Two different modes are
|
|
supported - Rambo and Compy Shop. Extended memory tested by
|
|
Q-meg (alternative operating system for Atari320XE).
|
|
ROM/ShadowRAM and AtariXL Basic switching optimized. <RASTER>
|
|
|
|
o Atari5200 emulation corrected (loading of ROMs, keyboard,
|
|
paddles). Special support for Bounty Bob on Atari5200
|
|
added. <Perry>
|
|
|
|
o new SIO code that supports formatting (written by <thor>,
|
|
updated by Perry and Petr).
|
|
|
|
|
|
Changes in 0.9.0
|
|
----------------
|
|
|
|
o slight speed up in antic.c <Perry>
|
|
|
|
o the right-most vertical line was missing on screen <RASTER>
|
|
|
|
o DOS: BREAK key should not have auto-repeat, Invers key added
|
|
<RASTER>
|
|
|
|
o ANTIC now contains #ifdef POKEY_UPDATE. That should be defined
|
|
in Makefiles for architectures where it's impossible to update
|
|
sound buffers in DMA interrupt (i.e. Unices etc)
|
|
|
|
o source cleaned up (no C++ style of comments), docs updated
|
|
|
|
|
|
Changes in 0.8.9
|
|
----------------
|
|
|
|
o ANTIC's DIRECT_VIDEO mode was completely rewritten. Now it is the
|
|
default mode of emulation, much faster than the previous approach.
|
|
This version of ANTIC is also 'line-oriented' - that means video
|
|
emulation is accurate to single scanlines. It allows such tricks
|
|
like changing charset during displaying an ANTIC text mode line.
|
|
ANTIC's scrolling in both horizontal and vertical direction is now
|
|
supported in all graphics modes. Thanks Perry for all these things.
|
|
|
|
o GTIA now supports all possible combinations of PMG collisions. It
|
|
also supports third colour (many games are much more colourful now,
|
|
just like they were on original Atari800). Thanks Thomas Richter and
|
|
Perry.
|
|
|
|
o -configure now preloads the default filenames of ROM images. It also
|
|
presets hold_option to 1 (for game players is better not to confuse
|
|
them with Atari Basic). <RASTER>
|
|
|
|
o xcolpf1 kludge was removed (antic, gtia, rt-config files).
|
|
o DIRECT_VIDEO support was removed (configure.c)
|
|
o the compilation config file is named atari800.djgpp on DOS, so it
|
|
finally doesn't collide with atari800.cfg (config file of emulator itself)
|
|
o sio.c opens files in binary mode - works on DOS
|
|
|
|
o Atari800 monitor changes: disassembler rewritten (now recognizes all 256
|
|
opcodes and displays also cycles and hex codes), different (more logical?)
|
|
commands: [D]isassembler, [C]hange memory, dump [M]emory (previously Y, M, D)
|
|
<RASTER>
|
|
|
|
o Fixed DMACTL and GRACTL registers (difference between enabled PMG and enabled
|
|
DMA for PMG). <RASTER>
|
|
|
|
o Introduced PMG flickering (try out POKE 53248,160:POKE 704,14:POKE 53277,3).
|
|
<RASTER>
|
|
|
|
o DOS keyboard: added Ctrl-1 (stops scrolling), Ctrl-2 (bell), Ctrl-3 (EOF) and
|
|
HOME key clears screen, END key stands for Atari BREAK key. INSERT and DELETE
|
|
keys insert and delete chars or whole lines (with Shift and Control keys).
|
|
|
|
|
|
Changes in 0.8.8
|
|
----------------
|
|
|
|
o Antic, GTIA and CPU are now synchronized. Very precise timing
|
|
(up to 99.87% compared to real Atari800XE) with CPU cycle counting
|
|
was implemented by RASTER. This should be the final solution for
|
|
numerous DLI problems.
|
|
|
|
Changes in 0.8.7
|
|
----------------
|
|
|
|
o snailmeter (speed indicator on the screen) is disabled automatically
|
|
when the host computer is fast enough for emulating the Atari800 at
|
|
full speed.
|
|
|
|
o Atari_Scanline() function was optimized - should be up to twice as fast
|
|
as was before.
|
|
|
|
o Falcon: keyboard emulation of joystick was fixed once more. Now you can
|
|
hold down several keys at once and it works OK.
|
|
|
|
o DOS: joystick is autodetected. If not present, keyboard emulates joy1.
|
|
If real joy is detected, keyboard emulates joy2. If "-joyswap" command
|
|
on command line is used, the joy1 and joy2 are exchanged.
|
|
|
|
Changes in 0.8.6
|
|
----------------
|
|
|
|
o improved IRQ handling in CPU (CLI instruction) - now Rescue on Fractalus
|
|
reacts on keyboard presses
|
|
|
|
o Falcon: real DMA sound with interrupt driven buffer recalculation using
|
|
Ron Fries POKEY 2.3
|
|
|
|
o DOS: keyboard fix of HASH mark (Shift-3)
|
|
|
|
o Falcon: keyboard fix of joystick emulation
|
|
|
|
o DOS version starts even when sound card is not initialized (emulator is now
|
|
able to run under WindowsNT 4.0)
|
|
|
|
o Falcon detects current video mode and doesn't touch VIDEL registers
|
|
if it's 320/352/384x240x8bp (see the -resolution switch) - Atari800 should
|
|
now run on RGB monitors as well.
|
|
|
|
o fixed little typo in BACK_SLASH (thanks Perry)
|
|
|
|
o improved DOS and Falcon keyboard emulation (common KEYPRESSED and SHIFT_KEY)
|
|
DOS version now recognizes extended keys properly - joystick emulation is OK
|
|
(Chimera, BruceLee and others are now playable)
|
|
|
|
o XL operating system is turned on in Coldstart routine.
|
|
|
|
o keyboard IRQ are set only if allowed by IRQEN
|
|
|
|
o DOS port emulates TAB and HELP key (HELP is mapped to F10 - not optimal,
|
|
should be changed to another key - perhaps F6, which is useless in XL mode)
|
|
|
|
o DOS port has faster screen update with dosmemputl (Perry)
|
|
|
|
o files on virtual drive are opened in binary mode (Perry)
|
|
and are listed in uppercase (RASTER's suggestion)
|
|
|
|
o fixed bug in SIO_Mount causing crashes when mounting drives in Disk management
|
|
|
|
o in System menu (F1) copy font from operating system and not from shadow RAM
|
|
(another XL related bug fix)
|
|
|
|
o added support for '\\' in file paths (see #define BACK_SLASH)
|
|
|
|
Changes in 0.8.4
|
|
----------------
|
|
|
|
o fixed bug in vertical scrolling (visible for example in Archon intro) -
|
|
thanks to Perry McFarlane
|
|
|
|
|
|
o DMA sound for Falcon version (using POKEY 2.2). Buffer recalculation is
|
|
not interrupt driven yet.
|
|
|
|
o Error messages are buffered until the original text mode is restored
|
|
(see #define BACKUP_MSG)
|
|
|
|
o Falcon version supports up to two joysticks
|
|
|
|
o Snailmeter :-) A kind of indicator for slow machines - it shows you
|
|
how many times is the emulator slower than real Atari800. On my
|
|
Afterburner (68040 @ 40 MHz) it's about three or four times slower
|
|
than original :-( If your machine is fast enough, the snailmeter
|
|
is not visible. So watch the lower bottom of screen! :-)
|
|
|
|
Changes in 0.8.3
|
|
----------------
|
|
|
|
o Radek Sterba (raster@infos.cz) did a marvelous work on discovering
|
|
unofficial 6502 instructions. This CPU.C has implemented _all_ 256
|
|
opcodes! He added more than 70 unofficial instructions, many of them
|
|
were even unkown before. ESC code had to be changed from 0xff to 0xf2
|
|
(0xff is a kind of 'regular' instruction, while 0xf2 is the CIM).
|
|
Atari800 is the world's first 6502 emulator with full instruction set!
|
|
100% software compatibility with original 6502.
|
|
|
|
o I've integrated his code and fixed JMP (addr) for addr crossing
|
|
page boundary (6502 was 'buggy', though 65C02 should had this fixed).
|
|
|
|
o IRQ variable has been changed from int to UBYTE (for C it shouldn't matter
|
|
and it helps in the m68k asm code).
|
|
|
|
o Disk images created by XFormer and its utilities (having extension
|
|
.XFD or .DD) may be of double density - I implemented it in sio.c
|
|
(see #ifdef ORIGINAL_XFD_CODE). Tested and works (glad to get it working,
|
|
because I have a lot of XFD images).
|
|
|
|
o In DOS/VGA version you can move the 320x200 screen around with Ctrl-Arrows
|
|
to see full 384x240 resolution of original Atari800. To restore the VGA
|
|
screen back to center press F10.
|
|
|
|
o DOS/VGA version supports one real PC joystick (emulated in port 1).
|
|
You still can use the numeric keypad as emulated joystick - by default
|
|
in port 1, or in port 2 with "-joyswap" command line switch. Joystick
|
|
doesn't have the ghost-moves (interrupts are disabled during joy reading).
|
|
Also joystick is not read whenever the Atari800 wants it, but only in the
|
|
keyboard routine (i.e. regularly 50 times per second, basically in VBL).
|
|
This was important to prevent a game reading joy port too often to hang
|
|
or slow the emulation down (reading of PC joystick takes some time).
|
|
|
|
o DOS port has finally got wonderfully clear sound, thanks to Ron Fries'
|
|
SoundBlaster Driver 1.2 and new, little/big-endian aware POKEY 2.2 routines.
|
|
|
|
o New monitor S command for searching a value in memory.
|
|
|
|
o The best news: found the reason why so many games didn't work in XL mode.
|
|
Fixed one MMU bug (XL didn't have TRIG2 and TRIG3 was connected to
|
|
cartridge) and introduced one MMU workaround (many 800-only games put
|
|
zero to PORTB. That's why Tapper and other games didn't work). Now the
|
|
compatibility ratio of Atari800 in XL/XE mode is at 97% or higher -
|
|
definitely the most compatible Atari800/XL/XE emulator in the world.
|
|
|
|
Changes in 0.8.2Petr
|
|
----------------
|
|
|
|
o Fixed wrong missile width (all missiles had the same width) - now River
|
|
Raid looks much better.
|
|
|
|
o Added 28 cycles in Antic after executing DLI - it was absolutely needed,
|
|
because otherwise the interrupt routine was executed too late and the
|
|
effects (color or font change) occured with another Antic line - now
|
|
Pitfall II has the score displayed in numbers and not in characters.
|
|
|
|
o Added several checks into SIO code for seeking() after end of file -
|
|
on Falcon it caused enlarging of disk images (for example the well
|
|
known MENU.ATR has original size 1296 bytes, but after rebooting
|
|
of Atari800 the file was enlarged to 2598672 bytes). Maybe it's
|
|
a hidden endianess problem in SIO code? It happened on Amiga, too.
|
|
|
|
o Added a method of invoking Monitor - by pressing the F8 key anytime
|
|
during emulation.
|
|
|
|
o Added BREAK command into Monitor. Now it's possible to enter monitor,
|
|
use command BREAK <addr> and then CONT. The emulator then runs until
|
|
the PC (program counter) is exactly <addr>. Then the monitor is invoked
|
|
again.
|
|
|
|
o DOS version has got joystick support and also sound support using Ron
|
|
Fries Pokey Emulation 2.0. The joystick is OK, but the sound is not
|
|
clear - need to change to interrupt driven sound buffer generating.
|
|
|
|
o Atari800 has been ported to Atari Falcon (32-bit machine with MC68030
|
|
or MC68040 and flexible graphics processor). Besides the port this
|
|
Falcon version contains special CPU 6502 emulation written in pure
|
|
MC68030 assembler by Empty Head (Karel Rous), special very fast routines
|
|
for chunky2planar conversion (written by Douglas Little @ Black Scorpion)
|
|
and special code for VIDEL programming (provided by Douglas as well).
|
|
The keyboard and joystick emulation, the port itself and the fixes
|
|
mentioned above were done by me, Petr Stehlik (stehlik@cas3.zlin.vutbr.cz).
|
|
|
|
Changes in 0.8.2David
|
|
----------------
|
|
|
|
o New Monitor READ command to load file into memory.
|
|
o New Monitor COLDSTART command to perform a coldstart.
|
|
o New Monitor WARMSTART command to perform a warmstart.
|
|
o New Monitor F command to fill memory range with a value.
|
|
o Prevention of "config.h" being included during compilation for Amiga.
|
|
o Improved MS-DOS keyboard handling. The most noticable difference is
|
|
that the keypad joystick emulation now returns to centre when the
|
|
key is released.
|
|
o Re-instated replacement OS - Allows Defender and Star Raider to
|
|
run without the Atari OS Roms.
|
|
o Added Atari Falcon Support - Thanks to Petr Stehlik.
|
|
o NAS (Network Audio System) support is now obsolete. The entries have
|
|
been removed from the makefile and the intention is to remove the
|
|
obsolete code before the next release.
|
|
|
|
Changes in 0.8.1
|
|
----------------
|
|
|
|
o Added -private_cmap flag for X11 version.
|
|
|
|
o Correction to handling of 6502 V flag during ADC and SBC operations.
|
|
|
|
Changes in 0.8.0
|
|
----------------
|
|
|
|
o Added Ron Fries Pokey Emulation routines for sound in Linux.
|
|
A million thanks to Ron for releasing these routines - I've
|
|
put off using sound for ages but it took less than an evening
|
|
to add sound using these routines :-)
|
|
|
|
Sound is setup for Linux using /dev/dsp but it also seems to
|
|
produce something using /dev/audio, which leads me to believe
|
|
that it should work on most Unix boxes with a little work.
|
|
Patches welcomed :-)
|
|
|
|
In order to support sound I've added a few new command line
|
|
options:-
|
|
|
|
-sound and -nosound do what you'd expect.
|
|
|
|
-dsp_divisor takes a decimal value which alters the quality of
|
|
the sound output. It is used to work out how much
|
|
sound should be created each time the screen is
|
|
refreshed. Ideally it should be 50 (PAL) or 60 (NTSC)
|
|
but I've found that the best value to use is about
|
|
5 less than the emulators screen refresh rate WITH
|
|
SOUND DISABLED. If the values is to high you will
|
|
get gaps in the sound. If the value is to low the
|
|
emulator will run slower than it should.
|
|
|
|
I strongly suggest you experiment with this parameter
|
|
in order to get both the best sound and performance.
|
|
|
|
o Support for an Experimental New Cartridge Format - with the use of
|
|
OSS Super Cartridges there is no way of automatically
|
|
distinguishing standard 16K cartridges from the various Super
|
|
Cartridges. Hopefully this format will do for cartridges what ATR
|
|
files did for disk images. Feedback and view would be welcomed
|
|
especially from the other Emulator Authors.
|
|
|
|
The current format is :-
|
|
|
|
first 4 bytes containing 'C' 'A' 'R' 'T'.
|
|
next 4 bytes containing cartridge type in MSB format.
|
|
|
|
Type 1 - Standard 8K Cartridge
|
|
Type 2 - Standard 16K Cartridge
|
|
Type 3 - OSS Super Cartridge (I heard rumours that there are two
|
|
different types of OSS Cartridges)
|
|
Type 4 - Atari 5200 Cartridge
|
|
|
|
Note: There is probably a case for extra cartridge types
|
|
indicating the system that needs to be emulated.
|
|
e.g. Standard 8K Cartridge (800 Mode Only).
|
|
|
|
next 4 bytes containing cartridge checksum in MSB format (ROM only).
|
|
next 4 bytes are currently unused.
|
|
followed immediately with the ROM data, typically 8, 16 or 32K.
|
|
|
|
In the next version I'm intending on adding:-
|
|
32 bytes for Cartridge Name
|
|
32 bytes for Cartridge Serial Number
|
|
32 bytes for Manufacturer
|
|
|
|
The current version of the emulator includes options in the
|
|
Cartridge Management screen to Create Cartridges in the above
|
|
format but be warned this format is likely to change.
|
|
|
|
Changes in 0.7.1
|
|
----------------
|
|
|
|
o Note: I now consider the new Menu System that runs in the Emulated
|
|
Atari's window to be the prefered User Interface. I have no
|
|
intention of doing any further development for XVIEW
|
|
|
|
o Cartridge Management added to Menu.
|
|
|
|
o Removed FFP Code.
|
|
|
|
Changes in 0.7.0
|
|
----------------
|
|
|
|
o F1 enters Menu System at any time. ESC returns you to the previous
|
|
screen. Items are lcoated using the cursor keys and selected by
|
|
either RETURN, SPACE, TAB or BACKSPACE. In most cases these keys
|
|
can be used interchangeably, the exception is in the Disk Management
|
|
Screen where RETURN is used to select a new disk and SPACE, TAB and
|
|
BACKSPACE are used to eject a disk - If there is no disk in the
|
|
virtual drive then SPACE, TAB and BACKSPACE will switch the drive
|
|
off (Useful for Shamus).
|
|
|
|
o X11, SVGALIB & DOS - F5 is now Warmstart and Shift F5 is Coldstart.
|
|
|
|
o X11 - F8 Single Shot Screen Dump, Shift F8 continuous Screen Dumps.
|
|
|
|
o MS-DOS version runs about three times quicker now that the emulator is
|
|
synchronising with a high resolution timer.
|
|
|
|
o MS-DOS version resets the screen back to text mode when finished.
|
|
|
|
Changes in 0.6.2
|
|
----------------
|
|
|
|
o Antic Modes 2, 3 and f now display the normal Atari Colour and
|
|
Luminance by default. Extended Antic Modes 2, 3 and f are enabled
|
|
by starting the emulator with the "-xcolpf1" command line option.
|
|
This allows two completely different colours to be displayed in
|
|
these modes - as previously.
|
|
|
|
o Improved Run-Time Configuration. Starting emulator with the "-configure"
|
|
command line option allows configuration of several items:-
|
|
|
|
1. Location of OS Roms
|
|
2. Default Directory for Disk Images
|
|
3. Default Directory for ROM Images
|
|
4. Default Directory for H1, H2, H3 and H4 pseudo devices
|
|
5. Command Print File (for Printer Support)
|
|
6. Default Screen Refresh Ratio
|
|
7. Default Startup System (OS/A, OS/B, XL, XE, 5200)
|
|
8. Default TV Mode (PAL, NTSC)
|
|
9. Hold Option during Coldstart
|
|
10. Enable C000-CFFF RAM in Atari 800 mode
|
|
11. Enable SIO Patch
|
|
12. Enable FFP Patch
|
|
13. Enable Extended COLPF1 (Two true colours in Antic Modes 2, 3 & F)
|
|
|
|
The emulator writes a file called "atari800.cfg" in your default
|
|
directory. When reading the configuration the emulator first checks
|
|
to see if you've specified a configuration on the command line with
|
|
the "-config" option otherwise it first tries to read a configuration
|
|
file from your default directory, failing this it then tries to read
|
|
a configuration file from "/etc/atari800.cfg".
|
|
|
|
o JoyMouse for Toshiba Portables running SVGALIB - Probably also
|
|
suitable for Trackball devices with minor modifications.
|
|
|
|
Changes in 0.6.1
|
|
----------------
|
|
|
|
*** IMPORTANT MESSAGE for EXISTING Users of Atari800 (Source Versions)
|
|
|
|
You will need to make some changes during the sytem configuration
|
|
stage - the emulator now expects the full path to each of the system
|
|
ROM images to be explicitly stated. If you don't have all the ROM
|
|
images then just pretend you have!
|
|
|
|
o FPS and SIO Monitor are no longer compile time configuration options.
|
|
Enabled by "-fps" or "-sio" command line option or via an XVIEW
|
|
pulldown menu.
|
|
o Motif fileselector retains state from one invocation to the next.
|
|
o Configuration program detects if longwords need to be aligned.
|
|
o Modification to X11 Paddle Emulation.
|
|
o Removed hardcoded paths in MOTIF code.
|
|
o Various fixes for curses mode.
|
|
o Correction to Colours in Antic Modes 4&5 causing Incorrect colours
|
|
in Rally Speedway, Galactic Chase and Mr. DO)
|
|
o Disabled DiskChange KEY (F8) in X11 version.
|
|
o Added "-nobasic" command line parameter.
|
|
o Added "-osa_rom", "-osb_rom", "-xlxe_rom", "-5200_rom" and "-basic_rom".
|
|
These command line options are used to specify the location of
|
|
various system ROMs on mis-configured systems or binary distributions.
|
|
|
|
Note: To prevent cluttering up the CHANGES file all credits are listed
|
|
in the CREDITS file.
|
|
|
|
Changes in 0.6.0
|
|
----------------
|
|
|
|
- Emulator can now be compiled for DOS using the DJGPP port of GCC (Thanks
|
|
to Ivo van Poorten)
|
|
|
|
Thanks to Maximum Entropy for the following Changes:-
|
|
- Implementation of Disable Drive menu item for Motif.
|
|
- Fixed scrolling problem for machines that can't access longwords on word
|
|
boundaries (e.g. SGI and SPARC).
|
|
- Added FPS Monitor to X11 and Motif versions.
|
|
- Changes to pattern matching for H: device.
|
|
|
|
Changes in 0.5.5
|
|
----------------
|
|
|
|
Thanks to Maximum Entropy for the following Changes:-
|
|
- Various corrections to MOTIF code.
|
|
- MOTIF callbacks for Insert Disk, Eject Disk and Insert ROM
|
|
- Bug Fixes in sio.c
|
|
- Bug Fix to devices.c allowing DOS 2.5 to get a directory of H:
|
|
- Bug Fix to monitor.c (EOF on INPUT + Blank Lines)
|
|
- Undocumented commands added to monitors HELP command.
|
|
|
|
Changes in 0.5.4
|
|
----------------
|
|
|
|
- Made Emulator C++ Friendly.
|
|
- BASIC version has not been working since CPU cycles were allocated during
|
|
scanlines processing. This problem was caused because the BASIC version
|
|
doesn't generate any scanlines and therefore didn't execute any
|
|
instructions. This version fixes the problem.
|
|
|
|
Changes in 0.5.3
|
|
----------------
|
|
|
|
- Removed GetWord macro from cpu.c
|
|
- Added XVIEW option to disable drive (via SIO_DisableDrive()). This
|
|
allows SHAMUS to work. The drive is automatically re-enabled next
|
|
time a disk is inserted.
|
|
|
|
Changes in 0.5.2
|
|
----------------
|
|
|
|
- Made CPU timing more accurate: It now issue 114 clock cycles per scanline
|
|
instead of 48 instructions.
|
|
- Removed obsolete functions: GetBinaryWord() and BinaryLoad().
|
|
- Handle PORTA Direction Control Register. Fixes Joystick problem in Caverns
|
|
of Mars 1.
|
|
- The atari_basic array was incorrectly defined in pia.c as [8129]. This
|
|
has now been corrected to [8192] (Thanks to Chris Palmer).
|
|
|
|
Changes in 0.5.1
|
|
----------------
|
|
|
|
- Changed handling of CONSOL for X11 versions - previously it was hard
|
|
to start some games.
|
|
- Changed address of 5200 POKEY chip. The information I have states that
|
|
it is located in page $eb, but evidence in a disassembled cart suggests
|
|
its at $e8. Of course it could appear in both pages, does anyone
|
|
know for sure?
|
|
- CPU time allocation is now performed entirely within "antic.c". This is
|
|
a pre-condition for switchable PAL/NTCS modes.
|
|
- Compile time configurable to either PAL [default] or NTCS system.
|
|
- "-countdown" option has been removed.
|
|
|
|
Changes in 0.5.0
|
|
----------------
|
|
|
|
- Simplified interface to CPU module.
|
|
- DIRECT_VIDEO now works with PMG collision detection. This option increases
|
|
performance by about 28% but can result in different colours being displayed.
|
|
This is because this option relies on COLPF0, COLPF1, COLPF2, COLPF3 and
|
|
COLBK all having different values, hence the emulator sometimes modifies
|
|
the colours :-( This option can be enabled during the configuration phase.
|
|
- Correction to ANTIC Mode 5 Vertical Scrolling.
|
|
- Correction to PMG DMA Code - Demon Attack now works OK.
|
|
- Added code to limit the emulator to 50fps - this will not have any
|
|
effect if your machine can't run the emulator greater than 50fps.
|
|
F10 in X11, XVIEW, MOTIF and SVGALIB versions toggles the limit on/off.
|
|
When the limit is off the emulator will go as fast as it can.
|
|
- Path to directory containing the OS ROM images is now defined during
|
|
the configuration phase (Declaration of ATARI_LIBRARY has been removed
|
|
from the Makefile).
|
|
- Correction to handling of PMG DMA - Pitfall II now Works.
|
|
- The unused bits in PMBASE are now ignored correcting errors in Atari Chess
|
|
and Frogger.
|
|
|
|
Changes in 0.4.5
|
|
----------------
|
|
|
|
- Added a compile time configuration option to control the default
|
|
screen refresh rate. In previous version of the emulator the default
|
|
rate has been 4 frame: draw 1 skip 3. From this version you will
|
|
be prompted for the default during the compile stage (except VMS and
|
|
AMIGA which still default to 4). A value of 1 is required for the
|
|
most accurate emulation. Values other than one can produce some
|
|
collision detection problems on a few programs (e.g. Burried Bucks).
|
|
- Split Custom Chip code into seperate files.
|
|
- Added 5200 Emulation Code - Runs program but needs modifications to
|
|
support 5200 controllers. The 2K OS ROM must be called "atari5200.rom"
|
|
and placed in the same directory as the other OS ROMS.
|
|
- Linux Joystick enabled by configuration program. There are nolonger
|
|
any makefile targets containing "joystick".
|
|
- Removed code relating to Emulated Operating System.
|
|
- Added option that displays the number of Frames per Second. This option
|
|
is enabled within the configuration program and currently only works
|
|
with the XVIEW version.
|
|
|
|
Changes in 0.4.4
|
|
----------------
|
|
|
|
- SpartaDOS 3.2 works for both Read and Write Access.
|
|
- Alternate Reality "The City" now works.
|
|
- Added interrupt timings for Invalid SIO commands.
|
|
- Support for Direct Serial I/O Write and Put sectors commands.
|
|
- Correction for Double Density ATR files.
|
|
|
|
Changes in 0.4.3
|
|
----------------
|
|
|
|
- Corrected a Bug that prevented DOS 2.5 from copying files to/from H:
|
|
- Re-instated F8 Disk Change function for non XVIEW/MOTIF/AMIGA Systems.
|
|
|
|
Changes in 0.4.2
|
|
----------------
|
|
|
|
- Test code for faster screen generation, enabled by defining DIRECT_VIDEO
|
|
within "atari_custom.c". It needs a little more thought with respect to
|
|
collision detection, hence it is disabled by default.
|
|
- Better PMG Priority Handling.
|
|
- Tidied up code accessing hardware registers
|
|
- Changed handling of B, D and I flags.
|
|
- Changed handling of NMIs.
|
|
|
|
Changes in 0.4.1
|
|
----------------
|
|
|
|
- Flashes background colour while performing direct Serial I/O
|
|
- Minor optimisation to Player/Player collision detection
|
|
- Minor changes in CPU emulation
|
|
- Correction to new cartridge code causing it to fail under XL/XE
|
|
emulation (Thanks to Neil Shipp)
|
|
- New targets in the Makefile for freebsd systems (Thanks to Ivo
|
|
van Poorten)
|
|
|
|
Changes in 0.4.0
|
|
----------------
|
|
|
|
- Added MOTIF User Interface
|
|
- Support for DEC-Windows under VMS (Thanks to Chris F Chiesa)
|
|
- Removed dependency on 'ncycles' global variable.
|
|
- Support for direct access to serial port hardware - The emulator will
|
|
now run Alternate Reality "The Dungeon" (I haven't tried the others)
|
|
- Modified handling of XL/XE memory.
|
|
- Fixed the GTIA modes which broke after X Window shared memory support
|
|
was added in version 0.3.0
|
|
- Correction allowing Montezumas Revenge to work again.
|
|
|
|
Changes in 0.3.3
|
|
----------------
|
|
|
|
- New System menu in XVIEW version allowing selection of operating
|
|
system etc.
|
|
- Amiga: Iconify working.
|
|
- Amiga: System menu contains options for Insert ROM, Remove ROM,
|
|
Enable PILL, Selection of Operating System and all previous disk
|
|
options.
|
|
- Amiga: Help menu option is now working using Multiview.
|
|
|
|
Changes in 0.3.2
|
|
----------------
|
|
|
|
- Modified BRK instruction to take account of the I flag. The BRK
|
|
instruction is ignored if the I flag is set.
|
|
- Added all unofficial NOP opcodes.
|
|
- New cartridge handling. The XVIEW version provides menu items
|
|
enabling the insertion and removal of cartridges.
|
|
|
|
Changes in 0.3.1
|
|
----------------
|
|
|
|
- Defined PRINT_COMMAND in devices.c for Amiga
|
|
- Minor optimisation to PMG handling
|
|
- Modified DLI Handling and ScanLine processing
|
|
|
|
Changes in 0.3.0
|
|
----------------
|
|
|
|
- Support for Atari 130XE memory banks (Antic currently accesses the
|
|
same bank as the CPU)
|
|
- XVIEW Exit item on the Disk menu.
|
|
- Printer device calls tmpnam() to allocate a temporary filename for
|
|
the spool file.
|
|
- XView version didn't enable HELP key for XL and XE emulation.
|
|
- X11 Backspace keys works in the same ways as the Delete key.
|
|
(Thanks to Cyrus Malek)
|
|
- Reset and Coldstart now work during XL and XE emulation.
|
|
- Added OK button to XVIEW controller and performance dialog boxes.
|
|
- Optional support for X11 Shared Memory Images resulting in a 32%
|
|
speed improvement. This option can only be used in conjunction
|
|
with the small screen display. Type make by itself to obtain
|
|
the new list of targets. "-shm" target extension enables this
|
|
option.
|
|
- Simple configuration program to avoid editing the Makefile as ofter.
|
|
make will invoke it the first time and afterwards "make config" can
|
|
be used. It currently handles the directories for the H: device, the
|
|
disk image directory for the XVIEW file chooser and the command used
|
|
to send a file to the printer. The print command should contain a %s
|
|
character sequence where a filename is expected (only the first %s
|
|
is relevant).
|
|
|
|
Changes in 0.2.7
|
|
----------------
|
|
|
|
- Renamed atari_h_device.c to a more general devices.c
|
|
- Emulator (private) opcode ESCRTS ($d2) added to support patching of OS.
|
|
- Printer device supported via Unix lpr command.
|
|
- Moved from RCS to CVS and added rcs Id keyword to all C files.
|
|
- Emulated OS: Better handling of Keyboard and ATASCII to screen
|
|
code conversion. Editor uses LMARGN, RMARGN, ROWCRS and COLCRS.
|
|
- Many other changes to EmuOS including implementation of SETVBV
|
|
COLDSV and WARMSV.
|
|
- Detection of X11 server supporting the MIT Shared Memory Extension in
|
|
preperation for shared memory pixmaps.
|
|
- Corrected bug in H: device (filename extraction routine).
|
|
|
|
Changes in 0.2.6
|
|
----------------
|
|
|
|
- Corrected calculation of number of sectors and reading of double
|
|
density ATR files (Thanks to Preston Crow)
|
|
- Correction for Linux ELF systems.
|
|
- XVIEW and NAS work under Linux/ELF
|
|
- Default directory for XVIEW Disk File Chooser is set within the
|
|
Makefile. By default it is pointing to /usr/local/lib/atari/DISKS
|
|
- Corrected bug in Missile 0 to Playfield collision detection.
|
|
- Corrected WSYNC bug (multiple stores to WSYNC during one scanline).
|
|
River Raid now runs correctly.
|
|
- -emuos to enable emulated operating system. Users without the
|
|
necessary atari OS ROMs can use this option to boot disk images/ROMs.
|
|
Currently this is very experimental and runs very little without
|
|
problems. Defender runs perfectly but if you haven't got the OS it's
|
|
unlikely you'll be able to get this either!
|
|
- H0: device accesses the current directory on your Unix Machine.
|
|
- H1: through H4: can access four directories specified either within
|
|
the Makefile or via the -H1, -H2, -H3 and -H4 command line options.
|
|
By default they are set to /usr/local/lib/atari/Hx where x is 1, 2,
|
|
3 or 4.
|
|
- H5: through H9: duplicate H0 through H4 but have automatic ATASCII
|
|
to ASCII translation. They are not suitable for binary files.
|
|
- All files accessed via the H: device have Unix filenames consisting
|
|
entirely of lowercase letters.
|
|
|
|
Changes in 0.2.5
|
|
----------------
|
|
|
|
- Network Audio System support on Unix Systems [incl. Linux]. Waveform
|
|
can be selected via the -sinewave or -squarewave options. At the
|
|
moment it doesn't support the Atari Distortion values and switches
|
|
channels using distortion off. This is available in XVIEW, X Window
|
|
and Linux SVGALIB versions. The Network Audio System is freely
|
|
available on the Internet - I used nas-1.2p2.tar.gz. Any Linux XVIEW
|
|
version do not work when built with the Network Audio System.
|
|
*** See BUGS file for more information ***
|
|
- Support for /dev/sequencer removed since it didn't look like it
|
|
would ever produce satisfactory results.
|
|
- Introduced -help option that lists all options available in the
|
|
emulator.
|
|
- Added LAX unofficial opcodes
|
|
- Corrected Vertical Fine scrolling in Antic Mode 7.
|
|
- Enhanced DLIST command in "monitor.c" which now displays the display
|
|
list using mnemonics.
|
|
- Updated VMS command file.
|
|
|
|
Changes in 0.2.4
|
|
----------------
|
|
|
|
- Corrected mask in Atari800_GetByte() and Atari800_PutByte()
|
|
- In Atari800_PutByte(), only switch on cartridge type when an
|
|
access is made to page $d5
|
|
- Screen generation using word access where possible.
|
|
- merged main.c with atari.c
|
|
- Fixed SVGALIB Escape and cursor keys.
|
|
- Emulated Floating Point Library which performs floating point
|
|
arithmetic directly on your host computer - bypasses 6502 CPU
|
|
emulation. Enabled by the -ffp option.
|
|
|
|
Changes in 0.2.3
|
|
----------------
|
|
|
|
- ADC and SBC functions are nolonger implemented as functions.
|
|
- 6502 PC, S, A, X, and Y register now handled using local
|
|
variables. Copied to global variables on exit from cpu and
|
|
restored on re-entry.
|
|
- Took advantage of a GCC feature: goto array[opcode]. Other compilers
|
|
still use a switch statement.
|
|
- Amiga: DisplayScreen() tidied up
|
|
- Added DLIST command to monitor. This command shows the address of
|
|
the display list (from hardware registers).
|
|
- Major recode of all Antic Graphics Modes. Now allows Horizontal and
|
|
Vertial fine scrolling.
|
|
- Added an -interlace option to the SVGALIB version, giving a
|
|
performance increase of about 10%. You would use this option to
|
|
increase the speed of programs that must be run with a screen
|
|
refresh rate of 1 (e.g. Burried Bucks)
|
|
- In the SVGALIB version, the F11 and F12 keys can be used to modify
|
|
the vertical positioning of the emulated screen. F11 moves the screen
|
|
down while F12 moves the screen up.
|
|
- Corrected a BUG causing River Raid to have corrupt screen display.
|
|
|
|
Changes in 0.2.2
|
|
----------------
|
|
|
|
- Made GetByte, GetWord and PutByte macros local to cpu.c
|
|
- Added some 386 inline asm() for some 6502 addressing modes
|
|
- Simplified Keyboard Handling
|
|
- Assembly routines for Amiga AGA screen handling
|
|
|
|
Changes in 0.2.1
|
|
----------------
|
|
|
|
- Created a new Makefile for Unix. The Amiga support is now in
|
|
Makefile.amiga
|
|
- Sorry, but I renamed the ATARI800 environment variable to ATARI_LIBRARY
|
|
which points to /usr/local/lib/atari by default.
|
|
- Control + Shift + Key combination for Linux SVGALIB implementation.
|
|
- SVGALIB version can be restarted after entering the monitor.
|
|
- HELP Key available in XL/XE mode
|
|
- Optional XVIEW (V3) Interface for X Window version. Allows disk changes
|
|
using a file selector, controller configuration and access to performance
|
|
variables.
|
|
- BREAK Key fixed
|
|
- PC Joysticks can be used with Linux (svgalib, x11 and xview) through the
|
|
/dev/js0 and /dev/js1 devices. Second button activates the space bar
|
|
which is very useful in Defender :-) Build with "make <system>" where
|
|
<system> is one of:- linux-x11-joystick, linux-xview-joystick or
|
|
linux-svgalib-joystick
|
|
- X11 Joystick emulation using keyboard re-implemented. Straight X11 can
|
|
use either numeric keypad or cursor keys + space. XVIEW can only use
|
|
cursor keys + space (Problem using keypad in xview!)
|
|
- Disk selector for Amiga version + controller configuration menu
|
|
- Started code to emulate SERIN and SEROUT registers. At the moment this
|
|
is ongoing and does not work. New startup option -nopatch disables the
|
|
SIO patch leaving the normal SIO routine in place.
|
|
|
|
Changes in 0.2.0
|
|
----------------
|
|
|
|
- Separated Playfield Scanlines from Player Missile Scanlines
|
|
- Corrected playfield colour errors in Antic modes 8 & 10
|
|
- Horizontal Fine Scrolling
|
|
- Playfield and Player/Missile Priorities
|
|
- Allow Emulator to run either as an Amiga Screen or Window
|
|
- Added Paddle support for Amiga
|
|
|
|
Changes in 0.1.9
|
|
----------------
|
|
|
|
- Corrected bug in IRQST and IRQEN
|
|
- Corrected minor bug in player missile collision detection
|
|
- Amiga version is now full screen + Menus
|
|
- Faster disk I/O
|
|
- Added ATARI800 environment variable. This allows the emulator to be
|
|
run from different directories. If ATARI800 is unset it will still
|
|
try to load the OS images from object/ below the current working
|
|
directory.
|
|
- colours.h replaces colours.dat
|
|
- Added man page.
|
|
- New way of handling Joysticks, Triggers, Paddles and Console Keys
|
|
- Corrected handling of CHBASE which was causing K-RAZY ANTIKS to
|
|
display garbage.
|
|
- Corrected handling of VCOUNT which was causing screen handling
|
|
errors in Star Raiders (galactic map) and Henri (game screen).
|
|
- Added Sound API. A test sound implementation is available for
|
|
the Linux SVGALIB version via /dev/sequencer - It's not very good
|
|
and has only been used to test the API. It is enabled by starting
|
|
the program with the -sound option. Listen to the title screens
|
|
of Necromancer, K-Razy Antiks and Henri (these are the best
|
|
I've heard).
|
|
- argc and argv are passed to the platform specific initialisation
|
|
code - Atari_Initialise(). This allows platform specific options
|
|
like -sound on the Linux SVGALIB version.
|
|
- Extra Amiga options -ocs -ecs and -aga. Currently the default is
|
|
AGA. The -ocs and -ecs have been tested on an A1200 with the
|
|
OCS and ECS emulation modes enabled. At the moment it is not
|
|
guaranteed to work on real OCS or ECS equiped machines since it
|
|
has only been tested under Workbench 3.0. Hopefully someone will
|
|
provide some feedback.
|
|
- Another two Amiga options -grey and -colour. The -grey option
|
|
produces a grey scale display on OCS, ECS and AGA machines. The
|
|
-colour option produces a full colour display on AGA machines and
|
|
up to 32 simultaneous colours on OCS and ECS machines.
|
|
- The DOUBLE_SIZE compilation flag for the X11 version has been
|
|
replaced by a runtime options. The runtime options are -small,
|
|
-large and -huge.
|
|
|
|
Changes in 0.1.8
|
|
----------------
|
|
|
|
- Allows direct use of GRAFP0, GRAFP1, GRAFP2, GRAFP3 and GRAFM without
|
|
using DMA.
|
|
- -rom16 option to load standard 16K ROMs.
|
|
- -a option to load object/atariosa.rom
|
|
- -b [default] option to load object/atariosb.rom
|
|
- Simplified screen generation for host - Player missile graphics
|
|
collision detection has been moved into 'atari_custom.c'
|
|
- Corrected read from PORTB (XL/XE emulation)
|
|
- GTIA support for *all* antic modes.
|
|
i.e. GTIA can be enabled in graphics mode 0 (antic mode 2) just like
|
|
a real 800. POKE 623 with 64, 128 or 192 to test.
|
|
- Amiga version can be compiled using either DICE C or GNU C - see Makefile
|
|
|
|
Changes in 0.1.7
|
|
----------------
|
|
|
|
- Issue cpu cycles during screen update (corrects VCOUNT problem)
|
|
As a result DLI are not occuring on the correct mode line.
|
|
- Support for 256 bytes/sector ATR files
|
|
- Handle Insert, Delete and Tab keys properly
|
|
- Handle Shift + Control + A-Z properly (X11 only)
|
|
- Cartridge support tidied up (Thanks to Dave Bennett)
|
|
|
|
Changes in 0.1.6
|
|
----------------
|
|
|
|
- Correct Colours (Thanks to Chris Lam)
|
|
- Fetch correct number of screen bytes with horizontal scrolling enabled
|
|
- Speed improvements for Antic Display Modes
|
|
- Support for ATR files (128 bytes sectors only)
|
|
- Support for XL/XE ROM (Reset etc. do not work???)
|
|
- Corrected Bug in BCD SBC instruction.
|
|
- Added X11 window Expose event (Thanks to Ivo van Poorten)
|
|
- Control characters within CURSES (Thanks to Ivo van Poorten)
|
|
- Improved Portability
|
|
- Remove '-b' flag (Use -rom object/ataribas.rom instead)
|
|
- Graphical Support for Amiga 1200
|
|
- Faster 6502 Emulation
|
|
- X11 Joystick emulation now uses the mouse
|
|
|
|
Changes in 0.1.5
|
|
----------------
|
|
|
|
- CURSES text only mode (Support for various terminals)
|
|
- Display list jump instruction corrected.
|
|
- Fixed SIO module (It didn't update DSTATS)
|
|
|
|
Changes in 0.1.4
|
|
----------------
|
|
|
|
- Changed GetByte and PutByte to macros
|
|
- Added SVGALIB support for Linux which is much quicker than X11.
|
|
- Added support for OSS Super Cartridges (Thanks to Dave Bennett)
|
|
- -rom option to specify alternative cartridges
|
|
- -oss option to specify alternative OSS Super Cartridges
|
|
|
|
Changes in 0.1.3
|
|
----------------
|
|
|
|
- Compilation option for double size screen
|
|
- Trigger now initialises to not pressed
|
|
- Joystick now initialises to central
|
|
- Fifth Player support added
|
|
- Support for Paddle 0
|
|
- Preparation for changing GetByte and PutByte to macros.
|
|
|
|
Changes in 0.1.2
|
|
----------------
|
|
|
|
- Now include <stdlib.h> in atari_custom.h
|
|
|
|
- Resets count to countdown as soon as it reaches zero. This was causing
|
|
problems with the RESET Key - count went negative.
|
|
|
|
- Removed XImage structure. I am now updating only the pixels that have
|
|
changed within a Pixmap. XCopyArea is used to move the Pixmap onto
|
|
the Window. XCopyArea is not called if no pixels are changed. As a
|
|
result I am trying a higher refresh rate.
|
|
|
|
- Correction for BASIC version - I left some X11 stuff in resulting in
|
|
unresolved sybols.
|
|
|
|
- Remove unused status variable from atari_h_device.c
|
|
|
|
- Added some test Amiga Intuition Code - not usable (No Colour or Keyboard)
|
|
It manages to get the 'READY' prompt up! Atari Basic Blue is one colour
|
|
and everything else is the other. When keyboard support is added you
|
|
will be able to use Atari Basic.
|
|
|
|
- Registers are now allocated variables within atari_custom.c. They are
|
|
nolonger stored in main memory area.
|
|
|
|
Changes in 0.1.1
|
|
----------------
|
|
|
|
- Outputs an error message when ROM images are not available.
|
|
|
|
Version 0.1.0
|
|
-------------
|
|
|
|
- Initial Release
|