riyyi/garbage
1
0
Fork 0
Code Issues Pull Requests Projects Releases Wiki Activity

Emulator: Add opcodes $6/$16/$26/$36

Browse Source
This commit is contained in:
Riyyi
2022-08-22 22:53:52 +02:00
parent 2dc4da71e4
commit 5d2ee7cbc9
1 changed files with 24 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files
src/cpu.cpp
+24
View File
@@ -63,13 +63,17 @@ void CPU::update()
case 0x01: ld16(); break;
case 0x02: ld8(); break;
case 0x06: ld8(); break;
case 0x08: ld16(); break;
case 0x11: ld16(); break;
case 0x12: ld8(); break;
case 0x16: ld8(); break;
case 0x21: ld16(); break;
case 0x22: ld8(); break;
case 0x26: ld8(); break;
case 0x31: ld16(); break;
case 0x32: ld8(); break;
case 0x36: ld8(); break;
case 0x3e: ld8(); break;
case 0xc3: jp16(); break;
case 0xc6: add(); break;
@@ -120,11 +124,21 @@ void CPU::ld8()
m_wait_cycles += 8;
write(bc(), m_a);
break;
case 0x06:
// LD B,n
m_wait_cycles += 8;
m_b = pcRead();
break;
case 0x12:
// LD (DE),A
m_wait_cycles += 8;
write(de(), m_a);
break;
case 0x16:
// LD D,n
m_wait_cycles += 8;
m_d = pcRead();
break;
case 0x22: {
// LD (HL+),A == LD (HLI),A == LDI (HL),A
m_wait_cycles += 8;
@@ -139,6 +153,11 @@ void CPU::ld8()
m_h = address >> 8;
break;
}
case 0x26:
// LD H,n
m_wait_cycles += 8;
m_h = pcRead();
break;
case 0x32: {
// LD (HL-),A == LD (HLD),A == LDD (HL),A
m_wait_cycles += 8;
@@ -153,6 +172,11 @@ void CPU::ld8()
m_h = address >> 8;
break;
}
case 0x36:
// LD (HL),n
m_wait_cycles += 12;
write(hl(), pcRead());
break;
case 0x3e:
// LD A,n
m_wait_cycles += 8;