5e65c7e977
TIA: Removed code for cosmic ark starfield (to be added back later, in a cleaner way). Changed the definition of a frame to start with the first scanline where VSYNC is disabled.
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MOS6507: Fixed a copy-paste mistake with SBC instructions where it would remove another cycle. This fixes the screen bounce issue with pitfall.
2012-03-20 22:45:15 +00:00
471b3ffb98
nes-fix soft reset functionality which had got broken when i upgraded the cpu core
2012-03-18 03:46:06 +00:00
2b21ca7127
add new, more detailed 6502X cpu core, use it in the nes core as experiment. win almost all the speed back, pass some more tests.
2012-03-15 21:28:37 +00:00
20a242c27e
sync mos6502 from my last core generator checkin
2012-03-15 20:40:50 +00:00
32bc215c2e
MOS6507: Hacked in BCD mode (borrowed from HuC6280). Pitfall's time counter now works correctly
2012-03-14 16:03:14 +00:00
ca47082737
fix some PCE savestate desyncs
2012-03-12 00:14:44 +00:00
23cb513188
MOS6507: adjusted for instructions with a variable cycle count
2012-03-11 07:08:48 +00:00
84a11eacdf
Switched over to using the 6507 to allow for some modifications to the CPU
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MOS6507: now executes instructions on the last cycle. This corrects a syncing issue with the TIA
TIA: added ball data, partially implemented HMOVE, implemented VBLANK
2012-03-11 03:22:44 +00:00
bc2e7995cc
clone 6502 into 6507
2012-03-11 03:09:43 +00:00
c6fcda4418
6502 disassembler: print the destination address of branch, not the offset
2012-03-10 19:10:12 +00:00
9ab33cba8b
6502: partially implemented unofficial NOPs for "Puzznic (U)", "Puzznic (J)".
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It is quite insufficient, but at least, we have to increment program counter appropriately.
For immediate addressing mode, it will be correct. For other addressing modes, I don't know whether they access memory, so further investigation will be needed.
2012-03-08 16:48:36 +00:00
26ff1a1bc5
cosmetics (indent for BRK opcode)
2012-03-08 15:33:52 +00:00
fd6ac896fc
general cleanup.. remove a bunch of warnings.. improve log console system a bit.. add new icons for log console window.. remove old demo psx interop system and add new, simpler one, which isnt really tested yet but is way less annoying.
2012-02-24 20:38:35 +00:00
5f66de57ec
discohawk-add capability for searching for mis-extensioned files (broadens compatibility a bit) and autodetecting audio tracks based on extension where otherwise marked as binary.
2012-01-21 21:23:19 +00:00
51f2e28e1b
68000: fix ASL/ASR bug. Correct calculation of carry flag on subtracty operations
2011-10-30 15:35:14 +00:00
b4793ec43c
68000: flags were not calculated in EXT
2011-10-27 04:15:16 +00:00
7ae6dfb534
68000: implement CMPM
2011-10-27 04:02:11 +00:00
e96912dab0
68000: fix dumb MULS/MULU/DIVS/DIVU bug
2011-10-27 03:06:33 +00:00
5a5a424cc7
gen: some work on renderer.
2011-10-18 03:48:37 +00:00
0924ad07fd
68000: fix bug in CMP instruction >_>
2011-10-13 02:38:23 +00:00
7cedd71729
68000: fix bug with ADDQ.W/SUBQ.W operating on address registers
2011-10-12 02:20:03 +00:00
04b93b5b8b
erp, disable insanely slow 68000 logging in the checked-in version
2011-10-11 04:03:06 +00:00
5b5c7c2890
68000: add MULU, MULS, DIVU, DIVS, MOVE to CCR
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Some genesis source reorganization
2011-10-11 03:52:44 +00:00
c787b70613
68000: implement EORI, ROXL, ROXR. Fix bugs on ADDI.L and SUBI.L. Complete MOVA timings. Work on An/PC Indexed addressing modes.
2011-10-09 19:15:31 +00:00
2d2bfae611
68000: implement NEG, fix bug on ANDI.L
2011-10-09 06:19:59 +00:00
a1d8e9a209
68000: implement UNLK, RTE, TRAP, ANDI to SR, and EORI to SR
2011-10-09 03:51:57 +00:00
1c38de023e
68000: implement BSET, BCLR, BCHG, and NOT
2011-10-08 23:26:29 +00:00
18de3c9efc
68000: implement AND, OR, EOR. Fix interrupt bug. Fix bug with SR register
2011-10-08 19:57:22 +00:00
ccea71e74d
68000: interrupt support.
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gen: fire vertical interrupt, now some games show sega logo before immediately crashing!
2011-10-08 15:44:41 +00:00
18a3f3f87a
68000: more flags fixes, especially N flag calculation. derp. :|
2011-10-07 05:13:15 +00:00
575a8940cb
68000: more add/sub flags fixes
2011-10-07 04:21:20 +00:00
f2ca21759c
68000 timings and flags fixes, some new opcode handlers
2011-10-07 03:04:48 +00:00
8fb8a35317
Genesis core revive! Get it back to where loading a genesis rom doesnt crash everything immediately
2011-10-01 17:06:25 +00:00
cf8216ac46
pce-cd: basically working pretty okay! (fixed bug causing issues with extended ADPCM playback sequences)
2011-09-28 05:03:22 +00:00
f3dc6068ce
delete extra/external 68k core
2011-09-27 02:46:23 +00:00
9aa70c4fa9
Much improved pce-cd savestateyfulness
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Cleanup and stateyness of SCSI bus still in progress; states not done yet
2011-09-16 04:59:59 +00:00
a8aaaef45e
[PCE] ADPCM playback more or less working correctly now
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plus some cleanup
2011-09-05 17:45:01 +00:00
8571853828
still-in-the-midst-of-it turbocd check-in
2011-08-29 02:47:03 +00:00
0a5157d9a6
Extremely preliminary TurboCD support
2011-08-14 18:20:13 +00:00
91baebf8b2
[PCE] Implement ORA under T-Flag, fixes City Hunter
2011-07-23 21:24:43 +00:00
47def064fa
significant PCE timing/compat improvements, still poking at a few things
2011-07-19 03:53:07 +00:00
3f27ac0b2a
Fix PCE Populous by supporting its custom SaveRAM.
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+ Unsubstantial TurboCD progress.
2011-07-15 02:08:18 +00:00
c8727ae01f
fix some gamedb stuff, add some genesis games to db, get genesis back to a state where it at least loads roms correctly
2011-07-10 04:54:18 +00:00
14cbe68303
fix 6502 disassembly
2011-06-10 03:43:17 +00:00
72100bd304
[NES] ELROM emulation (cv3 and laser invasion tested) and core savestate logic brought up to date. savestates for newer mappers still need reworking.
2011-06-09 19:45:07 +00:00
d0ea2f7106
[NES] one last cpu bug
2011-06-07 01:31:06 +00:00
00debfe6dd
[NES] battletoads beyotch
2011-06-07 01:05:57 +00:00
e6afb2359b
[nes] timing and accuracy work.
2011-06-06 10:27:42 +00:00
db28312787
[NES] fully consolidated text/binary serialization, and don't save screen buffer to binary savestates
2011-04-17 22:51:53 +00:00
35f339149c
remove stupid jscript dependency in core emulator
2011-04-17 08:49:49 +00:00
pjgat09