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

Emulator: Add comments to cycle waiting amount

Browse Source
This commit is contained in:
Riyyi
2022-08-30 15:20:54 +02:00
parent baa679904c
commit 024e6aecc3
1 changed files with 16 additions and 12 deletions
Download Patch File Download Diff File Expand all files Collapse all files
src/cpu.cpp
+16 -12
View File
@@ -929,24 +929,28 @@ void CPU::ldr8()
{
uint8_t opcode = pcRead();
switch (opcode) {
case 0x02: // LD (BC),A
m_wait_cycles += 4;
case 0x02: /* LD (BC),A */ {
m_wait_cycles += 4; // + 4 = 8 total
write(bc(), m_a);
break;
case 0x0a: // LD A,(BC)
m_wait_cycles += 4;
}
case 0x0a: /* LD A,(BC) */ {
m_wait_cycles += 4; // + 4 = 8 total
m_a = read(bc());
break;
case 0x12: // LD (DE),A
m_wait_cycles += 4;
}
case 0x12: /* LD (DE),A */ {
m_wait_cycles += 4; // + 4 = 8 total
write(de(), m_a);
break;
case 0x1a: // LD A,(DE)
m_wait_cycles += 4;
}
case 0x1a: /* LD A,(DE) */ {
m_wait_cycles += 4; // + 4 = 8 total
m_a = read(de());
break;
case 0x22: { // LD (HL+),A == LD (HLI),A == LDI (HL),A
m_wait_cycles += 4;
}
case 0x22: /* LD (HL+),A == LD (HLI),A == LDI (HL),A */ {
m_wait_cycles += 4; // + 4 = 8 total
// Put A into memory address in HL
uint32_t address = hl();
@@ -958,8 +962,8 @@ void CPU::ldr8()
m_h = address >> 8;
break;
}
case 0x32: { // LD (HL-),A == LD (HLD),A == LDD (HL),A
m_wait_cycles += 4;
case 0x32: /* LD (HL-),A == LD (HLD),A == LDD (HL),A */ {
m_wait_cycles += 4; // + 4 = 8 total
// Put A into memory address in HL
uint32_t address = hl();