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added register updates (tell me if you think it makes sense)

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Reverted shift changed which seems to be wrong



git-svn-id: https://dolphin-emu.googlecode.com/svn/trunk@2922 8ced0084-cf51-0410-be5f-012b33b47a6e
This commit is contained in:
nakeee 2009-04-07 22:11:51 +00:00
parent d1c9d2463c
commit 66ea22e8fb
2 changed files with 42 additions and 12 deletions
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52
Source/Plugins/Plugin_DSP_LLE-testing/Src/DSPInterpreter.cpp
View File

@ -562,6 +562,8 @@ void mulcmvz(const UDSPInstruction& opc)
u8 rreg = (opc.hex >> 8) & 0x1;
s64 acc = TempProd & ~0xffff; // clear lower 4 bytes
dsp_set_long_acc(rreg, acc);
Update_SR_Register64(acc);
}
void mulcmv(const UDSPInstruction& opc)
@ -576,6 +578,8 @@ void mulcmv(const UDSPInstruction& opc)
// update acc
u8 rreg = (opc.hex >> 8) & 0x1;
dsp_set_long_acc(rreg, TempProd);
Update_SR_Register64(TempProd);
}
void cmpar(const UDSPInstruction& opc)
@ -645,7 +649,10 @@ void mulcac(const UDSPInstruction& opc)
// update acc
u8 rreg = (opc.hex >> 8) & 0x1;
dsp_set_long_acc(rreg, TempProd + g_dsp.r[rreg]);
s64 acc = TempProd + g_dsp.r[rreg];
dsp_set_long_acc(rreg, acc);
Update_SR_Register64(acc);
}
// MOVR $acD, $axS.R
@ -735,6 +742,8 @@ void andc(const UDSPInstruction& opc)
{
g_dsp.r[DSP_REG_SR] &= ~0x20; // 0x40?
}
Update_SR_Register64(dsp_get_long_acc(D));
}
@ -1125,6 +1134,8 @@ void madd(const UDSPInstruction& opc)
s64 prod = dsp_get_long_prod();
prod += (s64)dsp_get_ax_l(sreg) * (s64)dsp_get_ax_h(sreg) * GetMultiplyModifier();
dsp_set_long_prod(prod);
Update_SR_Register64(prod);
}
// MSUB $axS.l, $axS.h
@ -1139,6 +1150,9 @@ void msub(const UDSPInstruction& opc)
s64 prod = dsp_get_long_prod();
prod -= (s64)dsp_get_ax_l(sreg) * (s64)dsp_get_ax_h(sreg) * GetMultiplyModifier();
dsp_set_long_prod(prod);
Update_SR_Register64(prod);
}
// LSR16 $acR
@ -1148,7 +1162,7 @@ void lsr16(const UDSPInstruction& opc)
{
u8 areg = (opc.hex >> 8) & 0x1;
s64 acc = dsp_get_long_acc(areg);
u64 acc = dsp_get_long_acc(areg);
acc >>= 16;
dsp_set_long_acc(areg, acc);
@ -1177,7 +1191,7 @@ void asr16(const UDSPInstruction& opc)
void lsl(const UDSPInstruction& opc)
{
u16 shift = opc.ushift;
s64 acc = dsp_get_long_acc(opc.areg);
u64 acc = dsp_get_long_acc(opc.areg);
acc <<= shift;
dsp_set_long_acc(opc.areg, acc);
@ -1191,8 +1205,8 @@ void lsl(const UDSPInstruction& opc)
// calculated by negating sign extended bits 0-6.
void lsr(const UDSPInstruction& opc)
{
s16 shift = -opc.ushift;
s64 acc = dsp_get_long_acc(opc.areg);
u16 shift = -opc.ushift;
u64 acc = dsp_get_long_acc(opc.areg);
// Lop off the extraneous sign extension our 64-bit fake accum causes
acc &= 0x000000FFFFFFFFFFULL;
acc >>= shift;
@ -1209,7 +1223,7 @@ void asl(const UDSPInstruction& opc)
u16 shift = opc.ushift;
// arithmetic shift
s64 acc = dsp_get_long_acc(opc.areg);
u64 acc = dsp_get_long_acc(opc.areg);
acc <<= shift;
dsp_set_long_acc(opc.areg, acc);
@ -1223,7 +1237,7 @@ void asl(const UDSPInstruction& opc)
// value calculated by negating sign extended bits 0-6.
void asr(const UDSPInstruction& opc)
{
s16 shift = -opc.ushift;
u16 shift = -opc.ushift;
// arithmetic shift
s64 acc = dsp_get_long_acc(opc.areg);
@ -1390,6 +1404,11 @@ void mulac(const UDSPInstruction& opc)
Update_SR_Register64(prod);
}
// MULMV $axS.l, $axS.h, $acR
// 1001 s11r xxxx xxxx
// Move product register to accumulator register $acR. Multiply low part
// $axS.l of secondary accumulator $axS by high part $axS.h of secondary
// accumulator $axS (treat them both as signed).
void mulmv(const UDSPInstruction& opc)
{
u8 rreg = (opc.hex >> 8) & 0x1;
@ -1504,12 +1523,14 @@ void mulxmvz(const UDSPInstruction& opc)
void sub(const UDSPInstruction& opc)
{
u8 D = (opc.hex >> 8) & 0x1;
s64 Acc1 = dsp_get_long_acc(D);
s64 Acc2 = dsp_get_long_acc(1 - D);
s64 acc1 = dsp_get_long_acc(D);
s64 acc2 = dsp_get_long_acc(1 - D);
Acc1 -= Acc2;
acc1 -= acc2;
dsp_set_long_acc(D, Acc1);
dsp_set_long_acc(D, acc1);
Update_SR_Register64(acc1);
}
@ -1535,6 +1556,9 @@ void maddx(const UDSPInstruction& opc)
s64 prod = dsp_get_long_prod();
prod += val1 * val2 * GetMultiplyModifier();
dsp_set_long_prod(prod);
Update_SR_Register64(prod);
}
// MSUBX $(0x18+S*2), $(0x19+T*2)
@ -1553,6 +1577,8 @@ void msubx(const UDSPInstruction& opc)
s64 prod = dsp_get_long_prod();
prod -= val1 * val2 * GetMultiplyModifier();
dsp_set_long_prod(prod);
Update_SR_Register64(prod);
}
// MADDC $acS.m, $axT.h
@ -1571,6 +1597,8 @@ void maddc(const UDSPInstruction& opc)
s64 prod = dsp_get_long_prod();
prod += val1 * val2 * GetMultiplyModifier();
dsp_set_long_prod(prod);
Update_SR_Register64(prod);
}
// MSUBC $acS.m, $axT.h
@ -1589,6 +1617,8 @@ void msubc(const UDSPInstruction& opc)
s64 prod = dsp_get_long_prod();
prod -= val1 * val2 * GetMultiplyModifier();
dsp_set_long_prod(prod);
Update_SR_Register64(prod);
}
// SRS @M, $(0x18+S)

2
Source/Plugins/Plugin_DSP_LLE-testing/Src/DSPTables.cpp
View File

@ -233,7 +233,7 @@ DSPOPCTemplate opcodes[] =
{"TST", 0xb100, 0xf7ff, DSPInterpreter::tst, nop, 1 | P_EXT, 1, {{P_ACCM, 1, 0, 11, 0x0800}}, dsp_op_ext_ops_pro, dsp_op_ext_ops_epi},
// GUESSING NOT SURE AT ALL!!!!
{"TSTAXL", 0xa100, 0xfeff, DSPInterpreter::tstaxl, nop, 1 | P_EXT, 1, {{P_REG1A, 1, 0, 8, 0x0100}}, dsp_op_ext_ops_pro, dsp_op_ext_ops_epi},
{"TSTAXL", 0xa100, 0xffff, DSPInterpreter::tstaxl, nop, 1 | P_EXT, 1, {{P_REG1A, 1, 0, 8, 0x0100}}, dsp_op_ext_ops_pro, dsp_op_ext_ops_epi},
{"TSTAXH", 0x8600, 0xfeff, DSPInterpreter::tstaxh, nop, 1 | P_EXT, 1, {{P_REG1A, 1, 0, 8, 0x0100}}, dsp_op_ext_ops_pro, dsp_op_ext_ops_epi},