Macintosh-Tools
/
gb6
mirror of https://github.com/mlaux/gb6.git
1
0
Fork 0
Code Issues Projects Releases Wiki Activity

a few more instructions

This commit is contained in:
Matthew Laux 2022-07-26 00:39:15 -05:00
parent 6ab729f377
commit 580c349fc7
1 changed files with 12 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

12
src/cpu.c
View File

@ -821,6 +821,11 @@ void cpu_step(struct cpu *cpu)
cpu->pc++;
break;
case 0xde: // SBC A, u8
subtract(cpu, read8(cpu, cpu->pc), 0, 1);
cpu->pc++;
break;
// AND
case 0xa0: and(cpu, cpu->b); break;
case 0xa1: and(cpu, cpu->c); break;
@ -954,6 +959,13 @@ void cpu_step(struct cpu *cpu)
case 0xf5: // PUSH AF
push(cpu, read_af(cpu));
break;
case 0xf8: // LD HL, SP+i8
write_hl(cpu, cpu->sp + (signed) read8(cpu, cpu->pc));
cpu->pc++;
break;
case 0xf9: // LD SP, HL
cpu->sp = read_hl(cpu);
break;
case 0xfa: // LD A,(u16)
cpu->a = read8(cpu, read16(cpu, cpu->pc));
cpu->pc += 2;