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NEC 平台的各种手动内联，固定结果的常量化，逻辑上浮

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This commit is contained in:
sin365 2025-11-11 10:51:01 +08:00
parent 9292175e37
commit 501f87c4f1
3 changed files with 667 additions and 52 deletions
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285
AxibugEmuOnline.Client/Assets/Plugins/Mame.Core/cpu/nec/Nec.cs
View File

@ -142,9 +142,16 @@ namespace cpu.nec
{
return (((seg_prefix != 0) && (Seg == 3 || Seg == 2)) ? prefix_base : (int)(I.sregs[Seg] << 4));
}
//private byte GetMemB(int Seg, int Off)
//{
// return ReadByte(DefaultBase(Seg, I) + Off);
//}
//手动内联
private byte GetMemB(int Seg, int Off)
{
return ReadByte(DefaultBase(Seg, I) + Off);
//return ReadByte(DefaultBase(Seg, I) + Off);
return ReadByte((((seg_prefix != 0) && (Seg == 3 || Seg == 2)) ? prefix_base : (int)(I.sregs[Seg] << 4)) + Off);
}
private ushort GetMemW(int Seg, int Off)
{
@ -265,13 +272,28 @@ namespace cpu.nec
SetSZPF_Byte((int)res);
dst = (byte)res;
}
//public void ADDW(ref ushort src, ref ushort dst)
//{
// uint res = (uint)(dst + src);
// SetCFW(res);
// SetOFW_Add((int)res, src, dst);
// SetAF((int)res, src, dst);
// SetSZPF_Word((int)res);
// dst = (ushort)res;
//}
//手动内联
public void ADDW(ref ushort src, ref ushort dst)
{
uint res = (uint)(dst + src);
SetCFW(res);
SetOFW_Add((int)res, src, dst);
SetAF((int)res, src, dst);
SetSZPF_Word((int)res);
//SetCFW(res);
I.CarryVal = res & 0x10000;
//SetOFW_Add((int)res, src, dst);
I.OverVal = (uint)((((int)res) ^ (src)) & (((int)res) ^ (dst)) & 0x8000);
//SetAF((int)res, src, dst);
I.AuxVal = (uint)((((int)res) ^ ((src) ^ (dst))) & 0x10);
//SetSZPF_Word((int)res);
I.ZeroVal = I.ParityVal = (uint)((short)(int)res);
I.SignVal = (int)I.ZeroVal;
dst = (ushort)res;
}
public void SUBB(ref byte src, ref byte dst)
@ -454,7 +476,7 @@ namespace cpu.nec
I.ip = (ushort)(I.ip + tmp);
pendingCycles -= JMP_table[chip_type / 8];
//PC = (I.sregs[1] << 4) + I.ip;
return;
//return;
}
}
public void ADJ4(int param1, int param2)
@ -1292,11 +1314,42 @@ namespace cpu.nec
nec_init();
chip_type = 8;
}
//public override int ExecuteCycles(int cycles)
//{
// return v30_execute(cycles);
//}
//public int v30_execute(int cycles)
//{
// pendingCycles = cycles;
// while (pendingCycles > 0)
// {
// int prevCycles = pendingCycles;
// if (I.pending_irq != 0 && I.no_interrupt == 0)
// {
// if ((I.pending_irq & NMI_IRQ) != 0)
// {
// external_int();
// }
// else if (I.IF)
// {
// external_int();
// }
// }
// if (I.no_interrupt != 0)
// {
// I.no_interrupt--;
// }
// iNOP = fetchop();
// nec_instruction[iNOP]();
// //DoInstructionOpCode(iNOP);
// int delta = prevCycles - pendingCycles;
// totalExecutedCycles += (ulong)delta;
// }
// return cycles - pendingCycles;
//}
//手动内联
public override int ExecuteCycles(int cycles)
{
return v30_execute(cycles);
}
public int v30_execute(int cycles)
{
pendingCycles = cycles;
while (pendingCycles > 0)
@ -1306,18 +1359,99 @@ namespace cpu.nec
{
if ((I.pending_irq & NMI_IRQ) != 0)
{
external_int();
//external_int();
if ((I.pending_irq & 0x02) != 0)
{
//nec_interrupt(2, false);
const int int_num = 2;
uint dest_seg, dest_off;
i_pushf();
I.TF = I.IF = false;
const int p1 = int_num * 4;
const int p2 = int_num * 4 + 2;
dest_off = ReadWord(p1);
dest_seg = ReadWord(p2);
PUSH(I.sregs[1]);
PUSH(I.ip);
I.ip = (ushort)dest_off;
I.sregs[1] = (ushort)dest_seg;
I.pending_irq &= unchecked((uint)(~2));
}
else if (I.pending_irq != 0)
{
//nec_interrupt(-1, false);
int int_num = -1;
uint dest_seg, dest_off;
i_pushf();
I.TF = I.IF = false;
int_num = Cpuint.cpu_irq_callback(cpunum, 0);
I.irq_state = 0;
I.pending_irq &= 0xfffffffe;
dest_off = ReadWord(int_num * 4);
dest_seg = ReadWord(int_num * 4 + 2);
PUSH(I.sregs[1]);
PUSH(I.ip);
I.ip = (ushort)dest_off;
I.sregs[1] = (ushort)dest_seg;
}
}
else if (I.IF)
{
external_int();
//external_int();
if ((I.pending_irq & 0x02) != 0)
{
//nec_interrupt(2, false);
const int int_num = 2;
uint dest_seg, dest_off;
i_pushf();
I.TF = I.IF = false;
const int p1 = int_num * 4;
const int p2 = int_num * 4 + 2;
dest_off = ReadWord(p1);
dest_seg = ReadWord(p2);
PUSH(I.sregs[1]);
PUSH(I.ip);
I.ip = (ushort)dest_off;
I.sregs[1] = (ushort)dest_seg;
I.pending_irq &= unchecked((uint)(~2));
}
else if (I.pending_irq != 0)
{
//nec_interrupt(-1, false);
int int_num = -1;
uint dest_seg, dest_off;
i_pushf();
I.TF = I.IF = false;
int_num = Cpuint.cpu_irq_callback(cpunum, 0);
I.irq_state = 0;
I.pending_irq &= 0xfffffffe;
dest_off = ReadWord(int_num * 4);
dest_seg = ReadWord(int_num * 4 + 2);
PUSH(I.sregs[1]);
PUSH(I.ip);
I.ip = (ushort)dest_off;
I.sregs[1] = (ushort)dest_seg;
}
}
}
if (I.no_interrupt != 0)
{
I.no_interrupt--;
}
iNOP = fetchop();
//iNOP = fetchop();
byte ret = ReadOp(((I.sregs[1] << 4) + I.ip++) ^ 0);
if (I.MF)
{
if (v25v35_decryptiontable != null)
{
ret = v25v35_decryptiontable[ret];
}
}
iNOP = ret;
nec_instruction[iNOP]();
//DoInstructionOpCode(iNOP);
int delta = prevCycles - pendingCycles;
@ -1333,11 +1467,42 @@ namespace cpu.nec
nec_init();
chip_type = 0;
}
//public override int ExecuteCycles(int cycles)
//{
// return v33_execute(cycles);
//}
//public int v33_execute(int cycles)
//{
// pendingCycles = cycles;
// while (pendingCycles > 0)
// {
// int prevCycles = pendingCycles;
// if (I.pending_irq != 0 && I.no_interrupt == 0)
// {
// if ((I.pending_irq & NMI_IRQ) != 0)
// {
// external_int();
// }
// else if (I.IF)
// {
// external_int();
// }
// }
// if (I.no_interrupt != 0)
// {
// I.no_interrupt--;
// }
// iNOP = fetchop();
// nec_instruction[iNOP]();
// //DoInstructionOpCode(iNOP);
// int delta = prevCycles - pendingCycles;
// totalExecutedCycles += (ulong)delta;
// }
// return cycles - pendingCycles;
//}
//手动内联
public override int ExecuteCycles(int cycles)
{
return v33_execute(cycles);
}
public int v33_execute(int cycles)
{
pendingCycles = cycles;
while (pendingCycles > 0)
@ -1347,18 +1512,98 @@ namespace cpu.nec
{
if ((I.pending_irq & NMI_IRQ) != 0)
{
external_int();
//external_int();
if ((I.pending_irq & 0x02) != 0)
{
//nec_interrupt(2, false);
const int int_num = 2;
uint dest_seg, dest_off;
i_pushf();
I.TF = I.IF = false;
const int p1 = int_num * 4;
const int p2 = int_num * 4 + 2;
dest_off = ReadWord(p1);
dest_seg = ReadWord(p2);
PUSH(I.sregs[1]);
PUSH(I.ip);
I.ip = (ushort)dest_off;
I.sregs[1] = (ushort)dest_seg;
I.pending_irq &= unchecked((uint)(~2));
}
else if (I.pending_irq != 0)
{
//nec_interrupt(-1, false);
int int_num = -1;
uint dest_seg, dest_off;
i_pushf();
I.TF = I.IF = false;
int_num = Cpuint.cpu_irq_callback(cpunum, 0);
I.irq_state = 0;
I.pending_irq &= 0xfffffffe;
dest_off = ReadWord(int_num * 4);
dest_seg = ReadWord(int_num * 4 + 2);
PUSH(I.sregs[1]);
PUSH(I.ip);
I.ip = (ushort)dest_off;
I.sregs[1] = (ushort)dest_seg;
}
}
else if (I.IF)
{
external_int();
//external_int();
if ((I.pending_irq & 0x02) != 0)
{
//nec_interrupt(2, false);
const int int_num = 2;
uint dest_seg, dest_off;
i_pushf();
I.TF = I.IF = false;
const int p1 = int_num * 4;
const int p2 = int_num * 4 + 2;
dest_off = ReadWord(p1);
dest_seg = ReadWord(p2);
PUSH(I.sregs[1]);
PUSH(I.ip);
I.ip = (ushort)dest_off;
I.sregs[1] = (ushort)dest_seg;
I.pending_irq &= unchecked((uint)(~2));
}
else if (I.pending_irq != 0)
{
//nec_interrupt(-1, false);
int int_num = -1;
uint dest_seg, dest_off;
i_pushf();
I.TF = I.IF = false;
int_num = Cpuint.cpu_irq_callback(cpunum, 0);
I.irq_state = 0;
I.pending_irq &= 0xfffffffe;
dest_off = ReadWord(int_num * 4);
dest_seg = ReadWord(int_num * 4 + 2);
PUSH(I.sregs[1]);
PUSH(I.ip);
I.ip = (ushort)dest_off;
I.sregs[1] = (ushort)dest_seg;
}
}
}
if (I.no_interrupt != 0)
{
I.no_interrupt--;
}
iNOP = fetchop();
//iNOP = fetchop();
byte ret = ReadOp(((I.sregs[1] << 4) + I.ip++) ^ 0);
if (I.MF)
{
if (v25v35_decryptiontable != null)
{
ret = v25v35_decryptiontable[ret];
}
}
iNOP = ret;
nec_instruction[iNOP]();
//DoInstructionOpCode(iNOP);
int delta = prevCycles - pendingCycles;

413
AxibugEmuOnline.Client/Assets/Plugins/Mame.Core/cpu/nec/NecInstr.cs
View File

@ -24,27 +24,108 @@
PutbackRMWord(ModRM, dst);
CLKR(ModRM, 24, 24, 11, 24, 16, 7, 2, EA);
}
//void i_add_r8b()
//{
// int ModRM;
// byte src, dst;
// DEF_r8b(out ModRM, out src, out dst);
// ADDB(ref src, ref dst);
// I.regs.b[mod_RM.regb[ModRM]] = dst;
// //CLKM(ModRM, 2, 2, 2, 11, 11, 6);
// const int ccount = (2 << 16) | (2 << 8) | 2, mcount = (11 << 16) | (11 << 8) | 6;
// pendingCycles -= (ModRM >= 0xc0) ? ((ccount >> chip_type) & 0x7f) : ((mcount >> chip_type) & 0x7f);
//}
//手动内联
void i_add_r8b()
{
int ModRM;
byte src, dst;
DEF_r8b(out ModRM, out src, out dst);
ADDB(ref src, ref dst);
//DEF_r8b(out ModRM, out src, out dst);
//ModRM = FETCH();
ModRM = ReadOpArg(((I.sregs[1] << 4) + I.ip++) ^ 0);
//dst = RegByte(ModRM);
dst = I.regs.b[mod_RM.regb[ModRM]];
//src = GetRMByte(ModRM);
src = ((ModRM) >= 0xc0 ? I.regs.b[mod_RM.RMb[ModRM]] : ReadByte(
GetEA[ModRM]()
//DoNecGetEAOpCode(ModRM)
));
//ADDB(ref src, ref dst);
uint res = (uint)(dst + src);
//SetCFB((uint)res);
I.CarryVal = (uint)res & 0x100;
//SetOFB_Add((int)res, src, dst);
I.OverVal = (uint)((((int)res) ^ (src)) & (((int)res) ^ (dst)) & 0x80);
//SetAF((int)res, src, dst);
I.AuxVal = (uint)((((int)res) ^ ((src) ^ (dst))) & 0x10);
//SetSZPF_Byte((int)res);
I.ZeroVal = I.ParityVal = (uint)((sbyte)(int)res);
I.SignVal = (int)I.ZeroVal;
dst = (byte)res;
I.regs.b[mod_RM.regb[ModRM]] = dst;
//CLKM(ModRM, 2, 2, 2, 11, 11, 6);
const int ccount = (2 << 16) | (2 << 8) | 2, mcount = (11 << 16) | (11 << 8) | 6;
pendingCycles -= (ModRM >= 0xc0) ? ((ccount >> chip_type) & 0x7f) : ((mcount >> chip_type) & 0x7f);
}
//void i_add_r16w()
//{
// int ModRM;
// ushort src, dst;
// DEF_r16w(out ModRM, out src, out dst);
// ADDW(ref src, ref dst);
// //I.regs.w[mod_RM.regw[ModRM]] = dst;
// I.regs.b[mod_RM.regw[ModRM] * 2] = (byte)(dst % 0x100);
// I.regs.b[mod_RM.regw[ModRM] * 2 + 1] = (byte)(dst / 0x100);
// CLKR(ModRM, 15, 15, 8, 15, 11, 6, 2, EA);
//}
//手动内联
void i_add_r16w()
{
int ModRM;
ushort src, dst;
DEF_r16w(out ModRM, out src, out dst);
ADDW(ref src, ref dst);
//DEF_r16w(out ModRM, out src, out dst);
//ModRM = FETCH();
ModRM = ReadOpArg(((I.sregs[1] << 4) + I.ip++) ^ 0);
//dst = RegWord(ModRM);
dst = (ushort)(I.regs.b[mod_RM.regw[ModRM] * 2] + I.regs.b[mod_RM.regw[ModRM] * 2 + 1] * 0x100);
//src = GetRMWord(ModRM);
src = (ushort)(ModRM >= 0xc0 ? I.regs.b[mod_RM.RMw[ModRM] * 2] + I.regs.b[mod_RM.RMw[ModRM] * 2 + 1] * 0x100 :
ReadWord(
GetEA[ModRM]()
//DoNecGetEAOpCode(ModRM)
));
//ADDW(ref src, ref dst);
uint res = (uint)(dst + src);
//SetCFW(res);
I.CarryVal = res & 0x10000;
//SetOFW_Add((int)res, src, dst);
I.OverVal = (uint)((((int)res) ^ (src)) & (((int)res) ^ (dst)) & 0x8000);
//SetAF((int)res, src, dst);
I.AuxVal = (uint)((((int)res) ^ ((src) ^ (dst))) & 0x10);
//SetSZPF_Word((int)res);
I.ZeroVal = I.ParityVal = (uint)((short)(int)res);
I.SignVal = (int)I.ZeroVal;
dst = (ushort)res;
//I.regs.w[mod_RM.regw[ModRM]] = dst;
I.regs.b[mod_RM.regw[ModRM] * 2] = (byte)(dst % 0x100);
I.regs.b[mod_RM.regw[ModRM] * 2 + 1] = (byte)(dst / 0x100);
CLKR(ModRM, 15, 15, 8, 15, 11, 6, 2, EA);
//CLKR(ModRM, 15, 15, 8, 15, 11, 6, 2, EA);
const int ocount = (15 << 16) | (15 << 8) | 8, ecount = (15 << 16) | (11 << 8) | 6;
if (ModRM >= 0xc0)
{
pendingCycles -= 2;
}
else
{
pendingCycles -= ((EA & 1) != 0) ? ((ocount >> chip_type) & 0x7f) : ((ecount >> chip_type) & 0x7f);
}
}
void i_add_ald8()
{
@ -765,7 +846,17 @@
//CLK(2);
pendingCycles -= 2;
nec_instruction[fetchop()]();
//nec_instruction[fetchop()]();
byte ret = ReadOp(((I.sregs[1] << 4) + I.ip++) ^ 0);
if (I.MF)
{
if (v25v35_decryptiontable != null)
{
ret = v25v35_decryptiontable[ret];
}
}
nec_instruction[ret]();
//DoInstructionOpCode(fetchop());
seg_prefix = 0;
}
@ -838,13 +929,56 @@
//int ccount = (2 << 16) | (2 << 8) | 2, mcount = (11 << 16) | (11 << 8) | 6;
pendingCycles -= (ModRM >= 0xc0) ? ((i_cmp_r8b_ccount >> chip_type) & 0x7f) : ((i_cmp_r8b_mcount >> chip_type) & 0x7f);
}
//void i_cmp_r16w()
//{
// int ModRM;
// ushort src, dst;
// DEF_r16w(out ModRM, out src, out dst);
// SUBW(ref src, ref dst);
// CLKR(ModRM, 15, 15, 8, 15, 11, 6, 2, EA);
//}
//手动内联
void i_cmp_r16w()
{
int ModRM;
ushort src, dst;
DEF_r16w(out ModRM, out src, out dst);
SUBW(ref src, ref dst);
CLKR(ModRM, 15, 15, 8, 15, 11, 6, 2, EA);
//DEF_r16w(out ModRM, out src, out dst);
//ModRM = FETCH();
ModRM = ReadOpArg(((I.sregs[1] << 4) + I.ip++) ^ 0);
//dst = RegWord(ModRM);
dst = (ushort)(I.regs.b[mod_RM.regw[ModRM] * 2] + I.regs.b[mod_RM.regw[ModRM] * 2 + 1] * 0x100);
//src = GetRMWord(ModRM);
src = (ushort)(ModRM >= 0xc0 ? I.regs.b[mod_RM.RMw[ModRM] * 2] + I.regs.b[mod_RM.RMw[ModRM] * 2 + 1] * 0x100 :
ReadWord(
GetEA[ModRM]()
//DoNecGetEAOpCode(ModRM)
));
//SUBW(ref src, ref dst);
uint res = (uint)(dst - src);
//SetCFW(res);
I.CarryVal = res & 0x10000;
//SetOFW_Sub((int)res, src, dst);
I.OverVal = (uint)(((dst) ^ (src)) & ((dst) ^ ((int)res)) & 0x8000);
//SetAF((int)res, src, dst);
I.AuxVal = (uint)((((int)res) ^ ((src) ^ (dst))) & 0x10);
//SetSZPF_Word((int)res);
I.ZeroVal = I.ParityVal = (uint)((short)(int)res);
I.SignVal = (int)I.ZeroVal;
dst = (ushort)res;
//CLKR(ModRM, 15, 15, 8, 15, 11, 6, 2, EA);
const int ocount = (15 << 16) | (15 << 8) | 8, ecount = (15 << 16) | (11 << 8) | 6;
if (ModRM >= 0xc0)
{
pendingCycles -= 2;
}
else
{
pendingCycles -= ((EA & 1) != 0) ? ((ocount >> chip_type) & 0x7f) : ((ecount >> chip_type) & 0x7f);
}
}
void i_cmp_ald8()
{
@ -1337,21 +1471,61 @@
pendingCycles -= (ccount >> chip_type) & 0x7f;
}
}
//void i_jnc()
//{
// bool b1 = !CF();
// JMP(b1);
// if (!b1)
// {
// //CLKS(4, 4, 3);
// const int ccount = (4 << 16) | (4 << 8) | 3;
// pendingCycles -= (ccount >> chip_type) & 0x7f;
// }
//}
void i_jnc()
{
bool b1 = !CF();
JMP(b1);
if (!b1)
//bool b1 = !CF();
bool b1 = !(I.CarryVal != 0);
//JMP(b1);
int tmp = (sbyte)(ReadOpArg(((I.sregs[1] << 4) + I.ip++) ^ 0));
if (b1)
{
I.ip = (ushort)(I.ip + tmp);
pendingCycles -= JMP_table[chip_type / 8];
}
else
{
//CLKS(4, 4, 3);
const int ccount = (4 << 16) | (4 << 8) | 3;
pendingCycles -= (ccount >> chip_type) & 0x7f;
}
}
//void i_jz()
//{
// bool b1 = ZF();
// JMP(b1);
// if (!b1)
// {
// //CLKS(4, 4, 3);
// const int ccount = (4 << 16) | (4 << 8) | 3;
// pendingCycles -= (ccount >> chip_type) & 0x7f;
// }
//}
//手动内联
void i_jz()
{
bool b1 = ZF();
JMP(b1);
//bool b1 = ZF();
bool b1 = (I.ZeroVal == 0);
//JMP(b1);
int tmp = (sbyte)(ReadOpArg(((I.sregs[1] << 4) + I.ip++) ^ 0));
if (b1)
{
I.ip = (ushort)(I.ip + tmp);
pendingCycles -= JMP_table[chip_type / 8];
}
if (!b1)
{
//CLKS(4, 4, 3);
@ -1525,7 +1699,9 @@
}
else
{
CLKS(18, 18, 7);
//CLKS(18, 18, 7);
const int ccount = (18 << 16) | (18 << 8) | 7;
pendingCycles -= (ccount >> chip_type) & 0x7f;
}
switch (ModRM & 0x38)
{
@ -1681,33 +1857,111 @@
PutbackRMWord(ModRM, src);
CLKR(ModRM, 24, 24, 12, 24, 16, 8, 3, EA);
}
//void i_mov_br8()
//{
// int ModRM;
// byte src;
// ModRM = GetModRM();
// src = I.regs.b[mod_RM.regb[ModRM]];
// PutRMByte(ModRM, src);
// //CLKM(ModRM, 2, 2, 2, 9, 9, 3);
// const int ccount = (2 << 16) | (2 << 8) | 2, mcount = (9 << 16) | (9 << 8) | 3;
// pendingCycles -= (ModRM >= 0xc0) ? ((ccount >> chip_type) & 0x7f) : ((mcount >> chip_type) & 0x7f);
//}
//手动内联
void i_mov_br8()
{
int ModRM;
byte src;
ModRM = GetModRM();
//ModRM = GetModRM();
ModRM = ReadOpArg(((I.sregs[1] << 4) + I.ip++) ^ 0);
src = I.regs.b[mod_RM.regb[ModRM]];
PutRMByte(ModRM, src);
//PutRMByte(ModRM, src);
if(ModRM >= 0xc0)
{
I.regs.b[mod_RM.RMb[ModRM]] = src;
}
else
{
WriteByte(
GetEA[ModRM]()
//DoNecGetEAOpCode(ModRM)
, src);
}
//CLKM(ModRM, 2, 2, 2, 9, 9, 3);
const int ccount = (2 << 16) | (2 << 8) | 2, mcount = (9 << 16) | (9 << 8) | 3;
pendingCycles -= (ModRM >= 0xc0) ? ((ccount >> chip_type) & 0x7f) : ((mcount >> chip_type) & 0x7f);
}
//void i_mov_wr16()
//{
// int ModRM;
// ushort src;
// ModRM = GetModRM();
// //src = I.regs.w[mod_RM.regw[ModRM]];
// src = (ushort)(I.regs.b[mod_RM.regw[ModRM] * 2] + I.regs.b[mod_RM.regw[ModRM] * 2 + 1] * 0x100);
// PutRMWord(ModRM, src);
// CLKR(ModRM, 13, 13, 5, 13, 9, 3, 2, EA);
//}
//手动内联
void i_mov_wr16()
{
int ModRM;
ushort src;
ModRM = GetModRM();
//src = I.regs.w[mod_RM.regw[ModRM]];
//ModRM = GetModRM();
ModRM = ReadOpArg(((I.sregs[1] << 4) + I.ip++) ^ 0);
src = (ushort)(I.regs.b[mod_RM.regw[ModRM] * 2] + I.regs.b[mod_RM.regw[ModRM] * 2 + 1] * 0x100);
PutRMWord(ModRM, src);
CLKR(ModRM, 13, 13, 5, 13, 9, 3, 2, EA);
//PutRMWord(ModRM, src);
if (ModRM >= 0xc0)
{
I.regs.b[mod_RM.RMw[ModRM] * 2] = (byte)(src % 0x100);
I.regs.b[mod_RM.RMw[ModRM] * 2 + 1] = (byte)(src / 0x100);
}
else
{
WriteWord(
GetEA[ModRM]()
, src);
}
//CLKR(ModRM, 13, 13, 5, 13, 9, 3, 2, EA);
//(int ModRM, int v20o, int v30o, int v33o, int v20e, int v30e, int v33e, int vall, int addr)
const int ocount = (13 << 16) | (13 << 8) | 5, ecount = (13 << 16) | (9 << 8) | 3;
if (ModRM >= 0xc0)
{
pendingCycles -= 2;
}
else
{
pendingCycles -= ((EA & 1) != 0) ? ((ocount >> chip_type) & 0x7f) : ((ecount >> chip_type) & 0x7f);
}
}
//void i_mov_r8b()
//{
// int ModRM;
// byte src;
// ModRM = GetModRM();
// src = GetRMByte(ModRM);
// I.regs.b[mod_RM.regb[ModRM]] = src;
// //CLKM(ModRM, 2, 2, 2, 11, 11, 5);
// const int ccount = (2 << 16) | (2 << 8) | 2, mcount = (11 << 16) | (11 << 8) | 5;
// pendingCycles -= (ModRM >= 0xc0) ? ((ccount >> chip_type) & 0x7f) : ((mcount >> chip_type) & 0x7f);
//}
//手动内联
void i_mov_r8b()
{
int ModRM;
byte src;
ModRM = GetModRM();
src = GetRMByte(ModRM);
//ModRM = GetModRM();
ModRM = ReadOpArg(((I.sregs[1] << 4) + I.ip++) ^ 0);
//src = GetRMByte(ModRM);
src = ((ModRM) >= 0xc0 ? I.regs.b[mod_RM.RMb[ModRM]] : ReadByte(
GetEA[ModRM]()
//DoNecGetEAOpCode(ModRM)
));
I.regs.b[mod_RM.regb[ModRM]] = src;
//CLKM(ModRM, 2, 2, 2, 11, 11, 5);
const int ccount = (2 << 16) | (2 << 8) | 2, mcount = (11 << 16) | (11 << 8) | 5;
@ -1845,7 +2099,7 @@
}
CLK(5);
}
void i_pushf()
public void i_pushf()
{
ushort tmp = CompressFlags();
PUSH(tmp);
@ -1893,8 +2147,13 @@
void i_mov_aldisp()
{
ushort addr;
addr = FETCHWORD();
I.regs.b[0] = GetMemB(3, addr);
//addr = FETCHWORD();
addr = (ushort)(ReadOpArg(((I.sregs[1] << 4) + I.ip) ^ 0) + (ReadOpArg(((I.sregs[1] << 4) + I.ip + 1) ^ 0) << 8));
I.ip += 2;
//I.regs.b[0] = GetMemB(3, addr);
I.regs.b[0] = ReadByte(( seg_prefix != 0 ? prefix_base : (I.sregs[3] << 4)) + addr);
//CLKS(10, 10, 5);
const int ccount = (10 << 16) | (10 << 8) | 5;
pendingCycles -= (ccount >> chip_type) & 0x7f;
@ -2562,9 +2821,33 @@
pendingCycles -= (ccount >> chip_type) & 0x7f;
}
}
//void i_loop()
//{
// sbyte disp = (sbyte)FETCH();
// //I.regs.w[1]--;
// ushort w1 = (ushort)(I.regs.b[2] + I.regs.b[3] * 0x100 - 1);
// I.regs.b[2] = (byte)(w1 % 0x100);
// I.regs.b[3] = (byte)(w1 / 0x100);
// if (I.regs.b[2] + I.regs.b[3] * 0x100 != 0)
// {
// I.ip = (ushort)(I.ip + disp);
// //CLKS(13, 13, 6);
// const int ccount = (13 << 16) | (13 << 8) | 6;
// pendingCycles -= (ccount >> chip_type) & 0x7f;
// }
// else
// {
// //CLKS(5, 5, 3);
// const int ccount = (5 << 16) | (5 << 8) | 3;
// pendingCycles -= (ccount >> chip_type) & 0x7f;
// }
//}
//手动内联
void i_loop()
{
sbyte disp = (sbyte)FETCH();
//sbyte disp = (sbyte)FETCH();
sbyte disp = (sbyte)ReadOpArg(((I.sregs[1] << 4) + I.ip++) ^ 0);
//I.regs.w[1]--;
ushort w1 = (ushort)(I.regs.b[2] + I.regs.b[3] * 0x100 - 1);
I.regs.b[2] = (byte)(w1 % 0x100);
@ -2780,14 +3063,85 @@
I.CarryVal = (uint)(CF() ? 0 : 1);
CLK(2);
}
//void i_f6pre()
//{
// int ModRM;
// uint tmp;
// uint uresult, uresult2;
// int result, result2;
// ModRM = GetModRM();
// tmp = GetRMByte(ModRM);
// switch (ModRM & 0x38)
// {
// case 0x00: tmp &= FETCH(); I.CarryVal = I.OverVal = 0; SetSZPF_Byte((int)tmp); pendingCycles -= (ModRM >= 0xc0) ? 4 : 11; break;
// case 0x08: break;
// case 0x10: PutbackRMByte(ModRM, (byte)(~tmp)); pendingCycles -= (ModRM >= 0xc0) ? 2 : 16; break;
// case 0x18: I.CarryVal = (uint)((tmp != 0) ? 1 : 0); tmp = (~tmp) + 1; SetSZPF_Byte((int)tmp); PutbackRMByte(ModRM, (byte)(tmp & 0xff)); pendingCycles -= (ModRM >= 0xc0) ? 2 : 16; break;
// case 0x20:
// uresult = I.regs.b[0] * tmp;
// //I.regs.w[0] = (ushort)uresult;
// I.regs.b[0] = (byte)((ushort)uresult % 0x100);
// I.regs.b[1] = (byte)((ushort)uresult / 0x100);
// I.CarryVal = I.OverVal = (uint)((I.regs.b[1] != 0) ? 1 : 0);
// pendingCycles -= (ModRM >= 0xc0) ? 30 : 36;
// break;
// case 0x28:
// result = (short)((sbyte)I.regs.b[0]) * (short)((sbyte)tmp);
// //I.regs.w[0] = (ushort)result;
// I.regs.b[0] = (byte)((ushort)result % 0x100);
// I.regs.b[1] = (byte)((ushort)result / 0x100);
// I.CarryVal = I.OverVal = (uint)((I.regs.b[1] != 0) ? 1 : 0);
// pendingCycles -= (ModRM >= 0xc0) ? 30 : 36;
// break;
// case 0x30:
// if (tmp != 0)
// {
// bool b1;
// DIVUB((int)tmp, out b1);
// if (b1)
// {
// break;
// }
// }
// else
// {
// nec_interrupt(0, false);
// }
// pendingCycles -= (ModRM >= 0xc0) ? 43 : 53;
// break;
// case 0x38:
// if (tmp != 0)
// {
// bool b1;
// DIVB((int)tmp, out b1);
// if (b1)
// {
// break;
// }
// }
// else
// {
// nec_interrupt(0, false);
// }
// pendingCycles -= (ModRM >= 0xc0) ? 43 : 53;
// break;
// }
//}
//手动内联
void i_f6pre()
{
int ModRM;
uint tmp;
uint uresult, uresult2;
int result, result2;
ModRM = GetModRM();
tmp = GetRMByte(ModRM);
//ModRM = GetModRM();
ModRM = ReadOpArg(((I.sregs[1] << 4) + I.ip++) ^ 0);
//tmp = GetRMByte(ModRM);
tmp = ((ModRM) >= 0xc0 ? I.regs.b[mod_RM.RMb[ModRM]] : ReadByte(
GetEA[ModRM]()
//DoNecGetEAOpCode(ModRM)
));
switch (ModRM & 0x38)
{
case 0x00: tmp &= FETCH(); I.CarryVal = I.OverVal = 0; SetSZPF_Byte((int)tmp); pendingCycles -= (ModRM >= 0xc0) ? 4 : 11; break;
@ -2844,6 +3198,7 @@
break;
}
}
void i_f7pre()
{
int ModRM;

21
AxibugEmuOnline.Client/Assets/Plugins/Mame.Core/cpu/nec/NecModrm.cs
View File

@ -132,11 +132,26 @@
dst = RegByte(ModRM);
src = GetRMByte(ModRM);
}
//void DEF_r16w(out int ModRM, out ushort src, out ushort dst)
//{
// ModRM = FETCH();
// dst = RegWord(ModRM);
// src = GetRMWord(ModRM);
//}
//手动内联
void DEF_r16w(out int ModRM, out ushort src, out ushort dst)
{
ModRM = FETCH();
dst = RegWord(ModRM);
src = GetRMWord(ModRM);
//ModRM = FETCH();
ModRM = ReadOpArg(((I.sregs[1] << 4) + I.ip++) ^ 0);
//dst = RegWord(ModRM);
dst = (ushort)(I.regs.b[mod_RM.regw[ModRM] * 2] + I.regs.b[mod_RM.regw[ModRM] * 2 + 1] * 0x100);
//src = GetRMWord(ModRM);
src = (ushort)(ModRM >= 0xc0 ? I.regs.b[mod_RM.RMw[ModRM] * 2] + I.regs.b[mod_RM.RMw[ModRM] * 2 + 1] * 0x100 :
ReadWord(
GetEA[ModRM]()
//DoNecGetEAOpCode(ModRM)
));
}
void DEF_ald8(out byte src, out byte dst)
{