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snes9x
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Group some MOV opcode cycles together.

This commit is contained in:
Brandon Wright 2011-09-14 17:12:03 -05:00
parent 6b9d6caf54
commit b97e56d64d
1 changed files with 36 additions and 92 deletions
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128
apu/bapu/smp/core/opcycle_mov.cpp
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@ -96,8 +96,6 @@ case 0xbf: {
break;
case 2:
regs.a = op_readdp(regs.x++);
break;
case 3:
op_io();
regs.p.n = !!(regs.a & 0x80);
regs.p.z = (regs.a == 0);
@ -156,11 +154,9 @@ case 0xf4: {
switch(opcode_cycle++) {
case 1:
sp = op_readpc();
break;
case 2:
op_io();
break;
case 3:
case 2:
regs.a = op_readdp(sp + regs.x);
regs.p.n = !!(regs.a & 0x80);
regs.p.z = (regs.a == 0);
@ -174,11 +170,9 @@ case 0xf9: {
switch(opcode_cycle++) {
case 1:
sp = op_readpc();
break;
case 2:
op_io();
break;
case 3:
case 2:
regs.x = op_readdp(sp + regs.y);
regs.p.n = !!(regs.x & 0x80);
regs.p.z = (regs.x == 0);
@ -192,11 +186,9 @@ case 0xfb: {
switch(opcode_cycle++) {
case 1:
sp = op_readpc();
break;
case 2:
op_io();
break;
case 3:
case 2:
regs.y = op_readdp(sp + regs.x);
regs.p.n = !!(regs.y & 0x80);
regs.p.z = (regs.y == 0);
@ -228,11 +220,9 @@ case 0xe9: {
switch(opcode_cycle++) {
case 1:
sp = op_readpc();
break;
case 2:
sp |= op_readpc() << 8;
break;
case 3:
case 2:
regs.x = op_readaddr(sp);
regs.p.n = !!(regs.x & 0x80);
regs.p.z = (regs.x == 0);
@ -246,11 +236,9 @@ case 0xec: {
switch(opcode_cycle++) {
case 1:
sp = op_readpc();
break;
case 2:
sp |= op_readpc() << 8;
break;
case 3:
case 2:
regs.y = op_readaddr(sp);
regs.p.n = !!(regs.y & 0x80);
regs.p.z = (regs.y == 0);
@ -264,14 +252,10 @@ case 0xf5: {
switch(opcode_cycle++) {
case 1:
sp = op_readpc();
break;
case 2:
sp |= op_readpc() << 8;
break;
case 3:
op_io();
break;
case 4:
case 2:
regs.a = op_readaddr(sp + regs.x);
regs.p.n = !!(regs.a & 0x80);
regs.p.z = (regs.a == 0);
@ -285,14 +269,10 @@ case 0xf6: {
switch(opcode_cycle++) {
case 1:
sp = op_readpc();
break;
case 2:
sp |= op_readpc() << 8;
break;
case 3:
op_io();
break;
case 4:
case 2:
regs.a = op_readaddr(sp + regs.y);
regs.p.n = !!(regs.a & 0x80);
regs.p.z = (regs.a == 0);
@ -306,17 +286,15 @@ case 0xe7: {
switch(opcode_cycle++) {
case 1:
dp = op_readpc() + regs.x;
break;
case 2:
op_io();
break;
case 3:
case 2:
sp = op_readdp(dp);
break;
case 4:
case 3:
sp |= op_readdp(dp + 1) << 8;
break;
case 5:
case 4:
regs.a = op_readaddr(sp);
regs.p.n = !!(regs.a & 0x80);
regs.p.z = (regs.a == 0);
@ -330,17 +308,15 @@ case 0xf7: {
switch(opcode_cycle++) {
case 1:
dp = op_readpc();
break;
case 2:
op_io();
break;
case 3:
case 2:
sp = op_readdp(dp);
break;
case 4:
case 3:
sp |= op_readdp(dp + 1) << 8;
break;
case 5:
case 4:
regs.a = op_readaddr(sp + regs.y);
regs.p.n = !!(regs.a & 0x80);
regs.p.z = (regs.a == 0);
@ -373,14 +349,12 @@ case 0x8f: {
switch(opcode_cycle++) {
case 1:
rd = op_readpc();
break;
case 2:
dp = op_readpc();
break;
case 3:
case 2:
op_readdp(dp);
break;
case 4:
case 3:
op_writedp(dp, rd);
opcode_cycle = 0;
break;
@ -407,12 +381,8 @@ case 0xc6: {
case 0xaf: {
switch(opcode_cycle++) {
case 1:
op_io();
break;
op_io(2);
case 2:
op_io();
break;
case 3:
op_writedp(regs.x++, regs.a);
opcode_cycle = 0;
break;
@ -472,15 +442,13 @@ case 0xd4: {
switch(opcode_cycle++) {
case 1:
dp = op_readpc();
break;
case 2:
op_io();
dp += regs.x;
break;
case 3:
case 2:
op_readdp(dp);
break;
case 4:
case 3:
op_writedp(dp, regs.a);
opcode_cycle = 0;
break;
@ -492,15 +460,13 @@ case 0xd9: {
switch(opcode_cycle++) {
case 1:
dp = op_readpc();
break;
case 2:
op_io();
dp += regs.y;
break;
case 3:
case 2:
op_readdp(dp);
break;
case 4:
case 3:
op_writedp(dp, regs.x);
opcode_cycle = 0;
break;
@ -512,15 +478,13 @@ case 0xdb: {
switch(opcode_cycle++) {
case 1:
dp = op_readpc();
break;
case 2:
op_io();
dp += regs.x;
break;
case 3:
case 2:
op_readdp(dp);
break;
case 4:
case 3:
op_writedp(dp, regs.y);
opcode_cycle = 0;
break;
@ -589,18 +553,14 @@ case 0xd5: {
switch(opcode_cycle++) {
case 1:
dp = op_readpc();
break;
case 2:
dp |= op_readpc() << 8;
break;
case 3:
op_io();
dp += regs.x;
break;
case 4:
case 2:
op_readaddr(dp);
break;
case 5:
case 3:
op_writeaddr(dp, regs.a);
opcode_cycle = 0;
break;
@ -612,18 +572,14 @@ case 0xd6: {
switch(opcode_cycle++) {
case 1:
dp = op_readpc();
break;
case 2:
dp |= op_readpc() << 8;
break;
case 3:
op_io();
dp += regs.y;
break;
case 4:
case 2:
op_readaddr(dp);
break;
case 5:
case 3:
op_writeaddr(dp, regs.a);
opcode_cycle = 0;
break;
@ -635,21 +591,19 @@ case 0xc7: {
switch(opcode_cycle++) {
case 1:
sp = op_readpc();
break;
case 2:
op_io();
sp += regs.x;
break;
case 3:
case 2:
dp = op_readdp(sp);
break;
case 4:
case 3:
dp |= op_readdp(sp + 1) << 8;
break;
case 5:
case 4:
op_readaddr(dp);
break;
case 6:
case 5:
op_writeaddr(dp, regs.a);
opcode_cycle = 0;
break;
@ -667,15 +621,13 @@ case 0xd7: {
break;
case 3:
dp |= op_readdp(sp + 1) << 8;
break;
case 4:
op_io();
dp += regs.y;
break;
case 5:
case 4:
op_readaddr(dp);
break;
case 6:
case 5:
op_writeaddr(dp, regs.a);
opcode_cycle = 0;
break;
@ -690,11 +642,9 @@ case 0xba: {
break;
case 2:
regs.a = op_readdp(sp);
break;
case 3:
op_io();
break;
case 4:
case 3:
regs.y = op_readdp(sp + 1);
regs.p.n = !!(regs.ya & 0x8000);
regs.p.z = (regs.ya == 0);
@ -727,11 +677,9 @@ case 0xaa: {
switch(opcode_cycle++) {
case 1:
sp = op_readpc();
break;
case 2:
sp |= op_readpc() << 8;
break;
case 3:
case 2:
bit = sp >> 13;
sp &= 0x1fff;
rd = op_readaddr(sp);
@ -746,21 +694,17 @@ case 0xca: {
switch(opcode_cycle++) {
case 1:
dp = op_readpc();
break;
case 2:
dp |= op_readpc() << 8;
break;
case 3:
case 2:
bit = dp >> 13;
dp &= 0x1fff;
rd = op_readaddr(dp);
if(regs.p.c)rd |= (1 << bit);
else rd &= ~(1 << bit);
break;
case 4:
op_io();
break;
case 5:
case 3:
op_writeaddr(dp, rd);
opcode_cycle = 0;
break;