ShuriZma
/
bsnes
mirror of https://github.com/bsnes-emu/bsnes.git
1
0
Fork 0
Code Issues Packages Projects Releases Wiki Activity
bsnes/higan/processor/gsu/disassembler.cpp

269 lines
12 KiB
C++
Raw Normal View History

Update to v098r17 release. byuu says: Changelog: - fixed Super Game Boy regression from v096r04 with bottom tile row flickering - fixed GB STAT IRQ regression from previous WIP - Altered Space is now playable - GBVideoPlayer isn't; but nobody seems to know exactly what weird hardware quirk that one relies on to work - ~3-4% speed improvement in SuperFX games by eliminating function<> callback on register assignments - most noticeable in Doom in-game; least noticeable on Yoshi's Island title screen (darn) - finished GSU core and SuperFX coprocessor code cleanups - did some more work cleaning up the LR35902 core and GB CPU code Just a fair warning: don't get your hopes up on these GB fixes. Cliffhanger now hangs completely (har har), and none of the other bugs are fixed. We pretty much did all this work just for Altered Space. So, I hope you like playing Altered Space.
2016-06-05 22:10:01 +00:00
auto GSU::disassembleOpcode(char* output) -> void {
First version split into asnes and bsnes.
2010-08-09 13:28:56 +00:00
*output = 0;
Update to v098r17 release. byuu says: Changelog: - fixed Super Game Boy regression from v096r04 with bottom tile row flickering - fixed GB STAT IRQ regression from previous WIP - Altered Space is now playable - GBVideoPlayer isn't; but nobody seems to know exactly what weird hardware quirk that one relies on to work - ~3-4% speed improvement in SuperFX games by eliminating function<> callback on register assignments - most noticeable in Doom in-game; least noticeable on Yoshi's Island title screen (darn) - finished GSU core and SuperFX coprocessor code cleanups - did some more work cleaning up the LR35902 core and GB CPU code Just a fair warning: don't get your hopes up on these GB fixes. Cliffhanger now hangs completely (har har), and none of the other bugs are fixed. We pretty much did all this work just for Altered Space. So, I hope you like playing Altered Space.
2016-06-05 22:10:01 +00:00
switch(regs.sfr.alt2 << 1 | regs.sfr.alt1 << 0) {
case 0: disassembleAlt0(output); break;
case 1: disassembleAlt1(output); break;
case 2: disassembleAlt2(output); break;
case 3: disassembleAlt3(output); break;
First version split into asnes and bsnes.
2010-08-09 13:28:56 +00:00
}
Update to v098r17 release. byuu says: Changelog: - fixed Super Game Boy regression from v096r04 with bottom tile row flickering - fixed GB STAT IRQ regression from previous WIP - Altered Space is now playable - GBVideoPlayer isn't; but nobody seems to know exactly what weird hardware quirk that one relies on to work - ~3-4% speed improvement in SuperFX games by eliminating function<> callback on register assignments - most noticeable in Doom in-game; least noticeable on Yoshi's Island title screen (darn) - finished GSU core and SuperFX coprocessor code cleanups - did some more work cleaning up the LR35902 core and GB CPU code Just a fair warning: don't get your hopes up on these GB fixes. Cliffhanger now hangs completely (har har), and none of the other bugs are fixed. We pretty much did all this work just for Altered Space. So, I hope you like playing Altered Space.
2016-06-05 22:10:01 +00:00
uint length = strlen(output);
First version split into asnes and bsnes.
2010-08-09 13:28:56 +00:00
while(length++ < 20) strcat(output, " ");
}
#define case4(id) \
case id+ 0: case id+ 1: case id+ 2: case id+ 3
#define case6(id) \
case id+ 0: case id+ 1: case id+ 2: case id+ 3: case id+ 4: case id+ 5
#define case12(id) \
case id+ 0: case id+ 1: case id+ 2: case id+ 3: case id+ 4: case id+ 5: case id+ 6: case id+ 7: \
case id+ 8: case id+ 9: case id+10: case id+11
#define case15(id) \
case id+ 0: case id+ 1: case id+ 2: case id+ 3: case id+ 4: case id+ 5: case id+ 6: case id+ 7: \
case id+ 8: case id+ 9: case id+10: case id+11: case id+12: case id+13: case id+14
#define case16(id) \
case id+ 0: case id+ 1: case id+ 2: case id+ 3: case id+ 4: case id+ 5: case id+ 6: case id+ 7: \
case id+ 8: case id+ 9: case id+10: case id+11: case id+12: case id+13: case id+14: case id+15
#define op0 regs.pipeline
Update to v098r17 release. byuu says: Changelog: - fixed Super Game Boy regression from v096r04 with bottom tile row flickering - fixed GB STAT IRQ regression from previous WIP - Altered Space is now playable - GBVideoPlayer isn't; but nobody seems to know exactly what weird hardware quirk that one relies on to work - ~3-4% speed improvement in SuperFX games by eliminating function<> callback on register assignments - most noticeable in Doom in-game; least noticeable on Yoshi's Island title screen (darn) - finished GSU core and SuperFX coprocessor code cleanups - did some more work cleaning up the LR35902 core and GB CPU code Just a fair warning: don't get your hopes up on these GB fixes. Cliffhanger now hangs completely (har har), and none of the other bugs are fixed. We pretty much did all this work just for Altered Space. So, I hope you like playing Altered Space.
2016-06-05 22:10:01 +00:00
#define op1 read((regs.pbr << 16) + regs.r[15] + 0)
#define op2 read((regs.pbr << 16) + regs.r[15] + 1)
First version split into asnes and bsnes.
2010-08-09 13:28:56 +00:00
Update to v098r17 release. byuu says: Changelog: - fixed Super Game Boy regression from v096r04 with bottom tile row flickering - fixed GB STAT IRQ regression from previous WIP - Altered Space is now playable - GBVideoPlayer isn't; but nobody seems to know exactly what weird hardware quirk that one relies on to work - ~3-4% speed improvement in SuperFX games by eliminating function<> callback on register assignments - most noticeable in Doom in-game; least noticeable on Yoshi's Island title screen (darn) - finished GSU core and SuperFX coprocessor code cleanups - did some more work cleaning up the LR35902 core and GB CPU code Just a fair warning: don't get your hopes up on these GB fixes. Cliffhanger now hangs completely (har har), and none of the other bugs are fixed. We pretty much did all this work just for Altered Space. So, I hope you like playing Altered Space.
2016-06-05 22:10:01 +00:00
auto GSU::disassembleAlt0(char* output) -> void {
First version split into asnes and bsnes.
2010-08-09 13:28:56 +00:00
char t[256] = "";
switch(op0) {
case (0x00): sprintf(t, "stop"); break;
case (0x01): sprintf(t, "nop"); break;
case (0x02): sprintf(t, "cache"); break;
case (0x03): sprintf(t, "lsr"); break;
case (0x04): sprintf(t, "rol"); break;
case (0x05): sprintf(t, "bra %+d", (int8_t)op1); break;
case (0x06): sprintf(t, "blt %+d", (int8_t)op1); break;
case (0x07): sprintf(t, "bge %+d", (int8_t)op1); break;
case (0x08): sprintf(t, "bne %+d", (int8_t)op1); break;
case (0x09): sprintf(t, "beq %+d", (int8_t)op1); break;
case (0x0a): sprintf(t, "bpl %+d", (int8_t)op1); break;
case (0x0b): sprintf(t, "bmi %+d", (int8_t)op1); break;
case (0x0c): sprintf(t, "bcc %+d", (int8_t)op1); break;
case (0x0d): sprintf(t, "bcs %+d", (int8_t)op1); break;
case (0x0e): sprintf(t, "bvc %+d", (int8_t)op1); break;
case (0x0f): sprintf(t, "bvs %+d", (int8_t)op1); break;
case16(0x10): sprintf(t, "to r%u", op0 & 15); break;
case16(0x20): sprintf(t, "with r%u", op0 & 15); break;
case12(0x30): sprintf(t, "stw (r%u)", op0 & 15); break;
case (0x3c): sprintf(t, "loop"); break;
case (0x3d): sprintf(t, "alt1"); break;
case (0x3e): sprintf(t, "alt2"); break;
case (0x3f): sprintf(t, "alt3"); break;
case12(0x40): sprintf(t, "ldw (r%u)", op0 & 15); break;
case (0x4c): sprintf(t, "plot"); break;
case (0x4d): sprintf(t, "swap"); break;
case (0x4e): sprintf(t, "color"); break;
case (0x4f): sprintf(t, "not"); break;
case16(0x50): sprintf(t, "add r%u", op0 & 15); break;
case16(0x60): sprintf(t, "sub r%u", op0 & 15); break;
case (0x70): sprintf(t, "merge"); break;
case15(0x71): sprintf(t, "and r%u", op0 & 15); break;
case16(0x80): sprintf(t, "mult r%u", op0 & 15); break;
case (0x90): sprintf(t, "sbk"); break;
case4 (0x91): sprintf(t, "link #%u", op0 & 15); break;
case (0x95): sprintf(t, "sex"); break;
case (0x96): sprintf(t, "asr"); break;
case (0x97): sprintf(t, "ror"); break;
case6 (0x98): sprintf(t, "jmp r%u", op0 & 15); break;
case (0x9e): sprintf(t, "lob"); break;
case (0x9f): sprintf(t, "fmult"); break;
case16(0xa0): sprintf(t, "ibt r%u,#$%.2x", op0 & 15, op1); break;
case16(0xb0): sprintf(t, "from r%u", op0 & 15); break;
Update to v093r07 release. byuu says: Changelog: - importing a game won't show message box on success - importing a game will select the game that was imported in the list - caveat: GTK+ port doesn't seem to be removing focus from item 0 even though the selection is on item 2 - Game Boy audio reduced in volume by 50% - Game Boy Advance audio reduced in volume by 50% - Game Boy internally mixes audio at 2MHz now - Game Boy Advance's Game Boy audio hardware internally mixes audio at 2MHz now - Game Boy Color doesn't sort sprites by X-coordinate - Game Boy Color allows transparency on BGpriority pixels - caveat: this seems to allow sprites to appear on top of windows - Game Boy Color VRAM DMA transfers 16 bytes in 8 clocks (or 16 clocks in double speed mode) - Game Boy Color VRAM DMA masks low 4-bits of source and destination address - Game Boy Color VRAM DMA only allows reads from ROM or RAM - Game Boy Color VRAM DMA only allows writes to VRAM - fixed a bug in dereferencing a nullptr from pObject::find(), should fix crash when pressing enter key on blank windows - fixed Windows RadioItem selection - Game Boy Advance color emulation code added
2013-12-10 12:12:54 +00:00
case (0xc0): sprintf(t, "hib"); break;
First version split into asnes and bsnes.
2010-08-09 13:28:56 +00:00
case15(0xc1): sprintf(t, "or r%u", op0 & 15); break;
case15(0xd0): sprintf(t, "inc r%u", op0 & 15); break;
case (0xdf): sprintf(t, "getc"); break;
case15(0xe0): sprintf(t, "dec r%u", op0 & 15); break;
case (0xef): sprintf(t, "getb"); break;
case16(0xf0): sprintf(t, "iwt r%u,#$%.2x%.2x", op0 & 15, op2, op1); break;
}
strcat(output, t);
}
Update to v098r17 release. byuu says: Changelog: - fixed Super Game Boy regression from v096r04 with bottom tile row flickering - fixed GB STAT IRQ regression from previous WIP - Altered Space is now playable - GBVideoPlayer isn't; but nobody seems to know exactly what weird hardware quirk that one relies on to work - ~3-4% speed improvement in SuperFX games by eliminating function<> callback on register assignments - most noticeable in Doom in-game; least noticeable on Yoshi's Island title screen (darn) - finished GSU core and SuperFX coprocessor code cleanups - did some more work cleaning up the LR35902 core and GB CPU code Just a fair warning: don't get your hopes up on these GB fixes. Cliffhanger now hangs completely (har har), and none of the other bugs are fixed. We pretty much did all this work just for Altered Space. So, I hope you like playing Altered Space.
2016-06-05 22:10:01 +00:00
auto GSU::disassembleAlt1(char* output) -> void {
First version split into asnes and bsnes.
2010-08-09 13:28:56 +00:00
char t[256] = "";
switch(op0) {
case (0x00): sprintf(t, "stop"); break;
case (0x01): sprintf(t, "nop"); break;
case (0x02): sprintf(t, "cache"); break;
case (0x03): sprintf(t, "lsr"); break;
case (0x04): sprintf(t, "rol"); break;
case (0x05): sprintf(t, "bra %+d", (int8_t)op1); break;
case (0x06): sprintf(t, "blt %+d", (int8_t)op1); break;
case (0x07): sprintf(t, "bge %+d", (int8_t)op1); break;
case (0x08): sprintf(t, "bne %+d", (int8_t)op1); break;
case (0x09): sprintf(t, "beq %+d", (int8_t)op1); break;
case (0x0a): sprintf(t, "bpl %+d", (int8_t)op1); break;
case (0x0b): sprintf(t, "bmi %+d", (int8_t)op1); break;
case (0x0c): sprintf(t, "bcc %+d", (int8_t)op1); break;
case (0x0d): sprintf(t, "bcs %+d", (int8_t)op1); break;
case (0x0e): sprintf(t, "bvc %+d", (int8_t)op1); break;
case (0x0f): sprintf(t, "bvs %+d", (int8_t)op1); break;
case16(0x10): sprintf(t, "to r%u", op0 & 15); break;
case16(0x20): sprintf(t, "with r%u", op0 & 15); break;
case12(0x30): sprintf(t, "stb (r%u)", op0 & 15); break;
case (0x3c): sprintf(t, "loop"); break;
case (0x3d): sprintf(t, "alt1"); break;
case (0x3e): sprintf(t, "alt2"); break;
case (0x3f): sprintf(t, "alt3"); break;
case12(0x40): sprintf(t, "ldb (r%u)", op0 & 15); break;
case (0x4c): sprintf(t, "rpix"); break;
case (0x4d): sprintf(t, "swap"); break;
case (0x4e): sprintf(t, "cmode"); break;
case (0x4f): sprintf(t, "not"); break;
case16(0x50): sprintf(t, "adc r%u", op0 & 15); break;
case16(0x60): sprintf(t, "sbc r%u", op0 & 15); break;
case (0x70): sprintf(t, "merge"); break;
case15(0x71): sprintf(t, "bic r%u", op0 & 15); break;
case16(0x80): sprintf(t, "umult r%u", op0 & 15); break;
case (0x90): sprintf(t, "sbk"); break;
case4 (0x91): sprintf(t, "link #%u", op0 & 15); break;
case (0x95): sprintf(t, "sex"); break;
case (0x96): sprintf(t, "div2"); break;
case (0x97): sprintf(t, "ror"); break;
case6 (0x98): sprintf(t, "ljmp r%u", op0 & 15); break;
case (0x9e): sprintf(t, "lob"); break;
case (0x9f): sprintf(t, "lmult"); break;
case16(0xa0): sprintf(t, "lms r%u,(#$%.4x)", op0 & 15, op1 << 1); break;
case16(0xb0): sprintf(t, "from r%u", op0 & 15); break;
case (0xc0): sprintf(t, "hib"); break;
case15(0xc1): sprintf(t, "xor r%u", op0 & 15); break;
case15(0xd0): sprintf(t, "inc r%u", op0 & 15); break;
case (0xdf): sprintf(t, "getc"); break;
case15(0xe0): sprintf(t, "dec r%u", op0 & 15); break;
case (0xef): sprintf(t, "getbh"); break;
case16(0xf0): sprintf(t, "lm r%u", op0 & 15); break;
}
strcat(output, t);
}
Update to v098r17 release. byuu says: Changelog: - fixed Super Game Boy regression from v096r04 with bottom tile row flickering - fixed GB STAT IRQ regression from previous WIP - Altered Space is now playable - GBVideoPlayer isn't; but nobody seems to know exactly what weird hardware quirk that one relies on to work - ~3-4% speed improvement in SuperFX games by eliminating function<> callback on register assignments - most noticeable in Doom in-game; least noticeable on Yoshi's Island title screen (darn) - finished GSU core and SuperFX coprocessor code cleanups - did some more work cleaning up the LR35902 core and GB CPU code Just a fair warning: don't get your hopes up on these GB fixes. Cliffhanger now hangs completely (har har), and none of the other bugs are fixed. We pretty much did all this work just for Altered Space. So, I hope you like playing Altered Space.
2016-06-05 22:10:01 +00:00
auto GSU::disassembleAlt2(char* output) -> void {
First version split into asnes and bsnes.
2010-08-09 13:28:56 +00:00
char t[256] = "";
switch(op0) {
case (0x00): sprintf(t, "stop"); break;
case (0x01): sprintf(t, "nop"); break;
case (0x02): sprintf(t, "cache"); break;
case (0x03): sprintf(t, "lsr"); break;
case (0x04): sprintf(t, "rol"); break;
case (0x05): sprintf(t, "bra %+d", (int8_t)op1); break;
case (0x06): sprintf(t, "blt %+d", (int8_t)op1); break;
case (0x07): sprintf(t, "bge %+d", (int8_t)op1); break;
case (0x08): sprintf(t, "bne %+d", (int8_t)op1); break;
case (0x09): sprintf(t, "beq %+d", (int8_t)op1); break;
case (0x0a): sprintf(t, "bpl %+d", (int8_t)op1); break;
case (0x0b): sprintf(t, "bmi %+d", (int8_t)op1); break;
case (0x0c): sprintf(t, "bcc %+d", (int8_t)op1); break;
case (0x0d): sprintf(t, "bcs %+d", (int8_t)op1); break;
case (0x0e): sprintf(t, "bvc %+d", (int8_t)op1); break;
case (0x0f): sprintf(t, "bvs %+d", (int8_t)op1); break;
case16(0x10): sprintf(t, "to r%u", op0 & 15); break;
case16(0x20): sprintf(t, "with r%u", op0 & 15); break;
case12(0x30): sprintf(t, "stw (r%u)", op0 & 15); break;
case (0x3c): sprintf(t, "loop"); break;
case (0x3d): sprintf(t, "alt1"); break;
case (0x3e): sprintf(t, "alt2"); break;
case (0x3f): sprintf(t, "alt3"); break;
case12(0x40): sprintf(t, "ldw (r%u)", op0 & 15); break;
case (0x4c): sprintf(t, "plot"); break;
case (0x4d): sprintf(t, "swap"); break;
case (0x4e): sprintf(t, "color"); break;
case (0x4f): sprintf(t, "not"); break;
case16(0x50): sprintf(t, "add #%u", op0 & 15); break;
case16(0x60): sprintf(t, "sub #%u", op0 & 15); break;
case (0x70): sprintf(t, "merge"); break;
case15(0x71): sprintf(t, "and #%u", op0 & 15); break;
case16(0x80): sprintf(t, "mult #%u", op0 & 15); break;
case (0x90): sprintf(t, "sbk"); break;
case4 (0x91): sprintf(t, "link #%u", op0 & 15); break;
case (0x95): sprintf(t, "sex"); break;
case (0x96): sprintf(t, "asr"); break;
case (0x97): sprintf(t, "ror"); break;
case6 (0x98): sprintf(t, "jmp r%u", op0 & 15); break;
case (0x9e): sprintf(t, "lob"); break;
case (0x9f): sprintf(t, "fmult"); break;
case16(0xa0): sprintf(t, "sms r%u,(#$%.4x)", op0 & 15, op1 << 1); break;
case16(0xb0): sprintf(t, "from r%u", op0 & 15); break;
case (0xc0): sprintf(t, "hib"); break;
case15(0xc1): sprintf(t, "or #%u", op0 & 15); break;
case15(0xd0): sprintf(t, "inc r%u", op0 & 15); break;
case (0xdf): sprintf(t, "ramb"); break;
case15(0xe0): sprintf(t, "dec r%u", op0 & 15); break;
case (0xef): sprintf(t, "getbl"); break;
case16(0xf0): sprintf(t, "sm r%u", op0 & 15); break;
}
strcat(output, t);
}
Update to v098r17 release. byuu says: Changelog: - fixed Super Game Boy regression from v096r04 with bottom tile row flickering - fixed GB STAT IRQ regression from previous WIP - Altered Space is now playable - GBVideoPlayer isn't; but nobody seems to know exactly what weird hardware quirk that one relies on to work - ~3-4% speed improvement in SuperFX games by eliminating function<> callback on register assignments - most noticeable in Doom in-game; least noticeable on Yoshi's Island title screen (darn) - finished GSU core and SuperFX coprocessor code cleanups - did some more work cleaning up the LR35902 core and GB CPU code Just a fair warning: don't get your hopes up on these GB fixes. Cliffhanger now hangs completely (har har), and none of the other bugs are fixed. We pretty much did all this work just for Altered Space. So, I hope you like playing Altered Space.
2016-06-05 22:10:01 +00:00
auto GSU::disassembleAlt3(char* output) -> void {
First version split into asnes and bsnes.
2010-08-09 13:28:56 +00:00
char t[256] = "";
switch(op0) {
case (0x00): sprintf(t, "stop"); break;
case (0x01): sprintf(t, "nop"); break;
case (0x02): sprintf(t, "cache"); break;
case (0x03): sprintf(t, "lsr"); break;
case (0x04): sprintf(t, "rol"); break;
case (0x05): sprintf(t, "bra %+d", (int8_t)op1); break;
case (0x06): sprintf(t, "blt %+d", (int8_t)op1); break;
case (0x07): sprintf(t, "bge %+d", (int8_t)op1); break;
case (0x08): sprintf(t, "bne %+d", (int8_t)op1); break;
case (0x09): sprintf(t, "beq %+d", (int8_t)op1); break;
case (0x0a): sprintf(t, "bpl %+d", (int8_t)op1); break;
case (0x0b): sprintf(t, "bmi %+d", (int8_t)op1); break;
case (0x0c): sprintf(t, "bcc %+d", (int8_t)op1); break;
case (0x0d): sprintf(t, "bcs %+d", (int8_t)op1); break;
case (0x0e): sprintf(t, "bvc %+d", (int8_t)op1); break;
case (0x0f): sprintf(t, "bvs %+d", (int8_t)op1); break;
case16(0x10): sprintf(t, "to r%u", op0 & 15); break;
case16(0x20): sprintf(t, "with r%u", op0 & 15); break;
case12(0x30): sprintf(t, "stb (r%u)", op0 & 15); break;
case (0x3c): sprintf(t, "loop"); break;
case (0x3d): sprintf(t, "alt1"); break;
case (0x3e): sprintf(t, "alt2"); break;
case (0x3f): sprintf(t, "alt3"); break;
case12(0x40): sprintf(t, "ldb (r%u)", op0 & 15); break;
case (0x4c): sprintf(t, "rpix"); break;
case (0x4d): sprintf(t, "swap"); break;
case (0x4e): sprintf(t, "cmode"); break;
case (0x4f): sprintf(t, "not"); break;
case16(0x50): sprintf(t, "adc #%u", op0 & 15); break;
case16(0x60): sprintf(t, "cmp r%u", op0 & 15); break;
case (0x70): sprintf(t, "merge"); break;
case15(0x71): sprintf(t, "bic #%u", op0 & 15); break;
case16(0x80): sprintf(t, "umult #%u", op0 & 15); break;
case (0x90): sprintf(t, "sbk"); break;
case4 (0x91): sprintf(t, "link #%u", op0 & 15); break;
case (0x95): sprintf(t, "sex"); break;
case (0x96): sprintf(t, "div2"); break;
case (0x97): sprintf(t, "ror"); break;
case6 (0x98): sprintf(t, "ljmp r%u", op0 & 15); break;
case (0x9e): sprintf(t, "lob"); break;
case (0x9f): sprintf(t, "lmult"); break;
case16(0xa0): sprintf(t, "lms r%u", op0 & 15); break;
case16(0xb0): sprintf(t, "from r%u", op0 & 15); break;
case (0xc0): sprintf(t, "hib"); break;
case15(0xc1): sprintf(t, "xor #%u", op0 & 15); break;
case15(0xd0): sprintf(t, "inc r%u", op0 & 15); break;
case (0xdf): sprintf(t, "romb"); break;
case15(0xe0): sprintf(t, "dec r%u", op0 & 15); break;
case (0xef): sprintf(t, "getbs"); break;
case16(0xf0): sprintf(t, "lm r%u", op0 & 15); break;
}
strcat(output, t);
}
#undef case4
#undef case6
#undef case12
#undef case15
#undef case16
#undef op0
#undef op1
#undef op2