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Intellivision - convert DIsassembler to peeks instead of reads

This commit is contained in:
adelikat 2017-04-23 13:14:05 -05:00
parent 4260ad528b
commit 7fbed8d3e5
1 changed files with 11 additions and 11 deletions
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22
BizHawk.Emulation.Cores/CPUs/CP1610/CP1610.Disassembler.cs
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@ -11,7 +11,7 @@
ushort addr, offset;
int decle2, decle3, cond, ext;
string result = "";
int opcode = ReadMemory(pc, false) & 0x3FF;
int opcode = ReadMemory(pc, true) & 0x3FF;
switch (opcode)
{
case 0x000:
@ -24,8 +24,8 @@
return "DIS";
case 0x004:
// 0000:0000:0000:0100 0000:00rr:aaaa:aaff 0000:00aa:aaaa:aaaa
decle2 = ReadMemory((ushort)(pc + 1), false);
decle3 = ReadMemory((ushort)(pc + 2), false);
decle2 = ReadMemory((ushort)(pc + 1), true);
decle3 = ReadMemory((ushort)(pc + 2), true);
// rr indicates the register into which to store the return address
dest = (byte)(((decle2 >> 8) & 0x3) + 4);
// aaaaaaaaaaaaaaaa indicates the address to where the CP1610 should Jump
@ -733,7 +733,7 @@
case 0x23D:
case 0x23E:
case 0x23F:
offset = ReadMemory((ushort)(pc + 1), false);
offset = ReadMemory((ushort)(pc + 1), true);
cond = opcode & 0xF;
ext = opcode & 0x10;
if (ext != 0)
@ -818,7 +818,7 @@
case 0x246:
case 0x247:
src = (byte)(opcode & 0x7);
addr = ReadMemory((ushort)(pc + 1), false);
addr = ReadMemory((ushort)(pc + 1), true);
addrToAdvance = 2;
return string.Format("MVO R{0:d}, ${1:X4}", src, addr);
case 0x248:
@ -889,7 +889,7 @@
case 0x286:
case 0x287:
dest = (byte)(opcode & 0x7);
addr = ReadMemory((ushort)(pc + 1), false);
addr = ReadMemory((ushort)(pc + 1), true);
addrToAdvance = 2;
return string.Format("MVI R{0:d}, ${1:X4}", dest, addr);
case 0x288:
@ -960,7 +960,7 @@
case 0x2C6:
case 0x2C7:
dest = (byte)(opcode & 0x7);
addr = ReadMemory((ushort)(pc + 1), false);
addr = ReadMemory((ushort)(pc + 1), true);
addrToAdvance = 2;
return string.Format("ADD R{0:d}, ${1:X4}", dest, addr);
case 0x2C8:
@ -1031,7 +1031,7 @@
case 0x306:
case 0x307:
mem = (byte)(opcode & 0x7);
addr = ReadMemory((ushort)(pc + 1), false);
addr = ReadMemory((ushort)(pc + 1), true);
addrToAdvance = 2;
return string.Format("SUB R{0:d}, ${1:X4}", mem, addr);
case 0x308:
@ -1102,7 +1102,7 @@
case 0x346:
case 0x347:
mem = (byte)(opcode & 0x7);
addr = ReadMemory((ushort)(pc + 1), false);
addr = ReadMemory((ushort)(pc + 1), true);
addrToAdvance = 2;
return string.Format("CMP R{0:d}, ${1:X4}", mem, addr);
case 0x348:
@ -1173,7 +1173,7 @@
case 0x386:
case 0x387:
mem = (byte)(opcode & 0x7);
addr = ReadMemory((ushort)(pc + 1), false);
addr = ReadMemory((ushort)(pc + 1), true);
addrToAdvance = 2;
return string.Format("AND R{0:d}, ${1:X4}", mem, addr);
case 0x388:
@ -1244,7 +1244,7 @@
case 0x3C6:
case 0x3C7:
mem = (byte)(opcode & 0x7);
addr = ReadMemory((ushort)(pc + 1), false);
addr = ReadMemory((ushort)(pc + 1), true);
addrToAdvance = 2;
return string.Format("XOR R{0:d}, ${1:X4}", mem, addr);
case 0x3C8: