6502/EightBit
1
0
Fork 0
mirror of https://github.com/MoleskiCoder/EightBit.git synced 2024-09-01 00:28:55 +00:00
Code Issues Projects Releases Wiki Activity

This tidies the last of 6502 cycle accurate instruction implementations.

Browse Source 
Signed-off-by: Adrian Conlon <Adrian.conlon@gmail.com>
This commit is contained in:
Adrian Conlon 2019-01-06 22:34:53 +00:00
parent ad644f7013
commit b7b7c93a77
1 changed files with 3 additions and 3 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

6
M6502/src/mos6502.cpp
View File

@ -107,7 +107,7 @@ int EightBit::MOS6502::execute() {
case 0x08: busRead(); php(); break; // PHP (implied)
case 0x09: A() = orr(A(), AM_Immediate()); break; // ORA (immediate)
case 0x0a: busRead(); A() = asl(A()); break; // ASL A (implied)
case 0x0b: addCycle(); anc(AM_Immediate()); break; // *ANC (immediate)
case 0x0b: anc(AM_Immediate()); break; // *ANC (immediate)
case 0x0c: AM_Absolute(); break; // *NOP (absolute)
case 0x0d: A() = orr(A(), AM_Absolute()); break; // ORA (absolute)
case 0x0e: busReadModifyWrite(asl(AM_Absolute())); break; // ASL (absolute)
@ -141,7 +141,7 @@ int EightBit::MOS6502::execute() {
case 0x28: busRead(); getBytePaged(1, S()); plp(); break; // PLP (implied)
case 0x29: A() = andr(A(), AM_Immediate()); break; // AND (immediate)
case 0x2a: busRead(); A() = rol(A()); break; // ROL A (implied)
case 0x2b: addCycle(); anc(AM_Immediate()); break; // *ANC (immediate)
case 0x2b: anc(AM_Immediate()); break; // *ANC (immediate)
case 0x2c: bit(A(), AM_Absolute()); break; // BIT (absolute)
case 0x2d: A() = andr(A(), AM_Absolute()); break; // AND (absolute)
case 0x2e: busReadModifyWrite(rol(AM_Absolute())); break; // ROL (absolute)
@ -209,7 +209,7 @@ int EightBit::MOS6502::execute() {
case 0x68: busRead(); getBytePaged(1, S()); A() = through(pop()); break; // PLA (implied)
case 0x69: A() = adc(A(), AM_Immediate()); break; // ADC (immediate)
case 0x6a: busRead(); A() = ror(A()); break; // ROR A (implied)
case 0x6b: addCycle(); arr(AM_Immediate()); break; // *ARR (immediate)
case 0x6b: arr(AM_Immediate()); break; // *ARR (immediate)
case 0x6c: jump(Address_Indirect()); break; // JMP (indirect)
case 0x6d: A() = adc(A(), AM_Absolute()); break; // ADC (absolute)
case 0x6e: busReadModifyWrite(ror(AM_Absolute())); break; // ROR (absolute)