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z80: clean up

This commit is contained in:
alyosha-tas 2018-06-13 12:54:43 -04:00
parent 2bae423df8
commit 5d401b20d3
4 changed files with 2 additions and 16 deletions
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3
BizHawk.Emulation.Cores/CPUs/Z80A/Execute.cs
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@ -20,15 +20,12 @@ namespace BizHawk.Emulation.Cores.Components.Z80A
public int instr_pntr = 0;
public int bus_pntr = 0;
public int mem_pntr = 0;
public ushort instr_swap;
public ushort[] cur_instr;
public ushort[] BUSRQ;
public ushort[] MEMRQ;
public byte opcode;
public bool NO_prefix, CB_prefix, IX_prefix, EXTD_prefix, IY_prefix, IXCB_prefix, IYCB_prefix;
public bool IXCB_prefetch, IYCB_prefetch; // value is fetched before opcode
public bool halted;
public ushort PF;
public void FetchInstruction()
{

2
BizHawk.Emulation.Cores/CPUs/Z80A/Interrupts.cs
View File

@ -119,8 +119,6 @@ namespace BizHawk.Emulation.Cores.Components.Z80A
MEMRQ = new ushort[] { I, 0, 0, SPh, 0, 0, SPh, 0, 0, W, 0, 0, W, 0, 0, PCh, 0, 0, 0 };
}
private static ushort[] INT_vectors = new ushort[] {0x40, 0x48, 0x50, 0x58, 0x60};
private void ResetInterrupts()
{
IFF1 = false;

2
BizHawk.Emulation.Cores/CPUs/Z80A/Registers.cs
View File

@ -58,7 +58,7 @@ namespace BizHawk.Emulation.Cores.Components.Z80A
public const ushort WIO4 = 108;
public bool FlagI, FlagI1, FlagI2, FlagI3, FlagI4, FlagI5, FlagI6;
public bool FlagI, FlagI1, FlagI2, FlagI3, FlagI4, FlagI5;
public bool FlagW; // wait flag, when set to true reads / writes will be delayed

11
BizHawk.Emulation.Cores/CPUs/Z80A/Z80A.cs
View File

@ -160,7 +160,6 @@ namespace BizHawk.Emulation.Cores.Components.Z80A
// Execute instructions
public void ExecuteOne()
{
//FlagI6 = FlagI5;
FlagI5 = FlagI4;
FlagI4 = FlagI3;
FlagI3 = FlagI2;
@ -676,14 +675,11 @@ namespace BizHawk.Emulation.Cores.Components.Z80A
DEC16, PCl, PCh,
DEC16, PCl, PCh,
IDLE,
IDLE,//DEC16, B, ALU,
IDLE,
WAIT,
OP_F,
OP};
//Regs[B] = (ushort)((Regs[B] + 1) & 0xFF);
BUSRQ = new ushort[] { B, B, B, B, B, PCh, 0, 0, 0 };
MEMRQ = new ushort[] { 0, 0, 0, 0, 0, PCh, 0, 0, 0 };
}
@ -777,7 +773,6 @@ namespace BizHawk.Emulation.Cores.Components.Z80A
ser.Sync("cur_instr", ref cur_instr, false);
ser.Sync("BUSRQ", ref BUSRQ, false);
ser.Sync("MEMRQ", ref MEMRQ, false);
ser.Sync("instr_swap", ref instr_swap);
ser.Sync("opcode", ref opcode);
ser.Sync("FlagI", ref FlagI);
ser.Sync("FlagI1", ref FlagI1);
@ -785,7 +780,6 @@ namespace BizHawk.Emulation.Cores.Components.Z80A
ser.Sync("FlagI3", ref FlagI3);
ser.Sync("FlagI4", ref FlagI4);
ser.Sync("FlagI5", ref FlagI5);
ser.Sync("FlagI6", ref FlagI6);
ser.Sync("FlagW", ref FlagW);
ser.Sync("NO Preifx", ref NO_prefix);
@ -795,9 +789,6 @@ namespace BizHawk.Emulation.Cores.Components.Z80A
ser.Sync("IXCB_prefix", ref IXCB_prefix);
ser.Sync("IYCB_prefix", ref IYCB_prefix);
ser.Sync("EXTD_prefix", ref EXTD_prefix);
ser.Sync("IXCB_prefetch", ref IXCB_prefetch);
ser.Sync("IYCB_prefetch", ref IYCB_prefetch);
ser.Sync("PF", ref PF);
ser.EndSection();
}