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More merging (based on shuffle's opcode merging) includes some fixes/new functions

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F|res this has the jumps you were looking for :-) (not all implemented)



git-svn-id: https://dolphin-emu.googlecode.com/svn/trunk@2843 8ced0084-cf51-0410-be5f-012b33b47a6e
This commit is contained in:
nakeee
2009-04-03 09:14:52 +00:00
parent c6ea5b136f
commit 7c4e654253
4 changed files with 211 additions and 135 deletions
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110
Source/Plugins/Plugin_DSP_LLE-testing/Src/DSPInterpreter.cpp
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@ -82,87 +82,75 @@ s8 GetMultiplyModifier()
return(2);
}
// TODO add case comments
bool CheckCondition(u8 _Condition)
{
bool taken = false;
switch (_Condition & 0xf)
{
case 0x0:
case 0x0: //NS - NOT SIGN
if ((!(g_dsp.r[R_SR] & 0x02)) && (!(g_dsp.r[R_SR] & 0x08)))
{
taken = true;
}
break;
case 0x3:
if ((g_dsp.r[R_SR] & 0x02) || (g_dsp.r[R_SR] & 0x04) || (g_dsp.r[R_SR] & 0x08))
{
taken = true;
}
break;
// old from duddie
case 0x1: // seems okay
case 0x1: // S - SIGN
if ((!(g_dsp.r[R_SR] & 0x02)) && (g_dsp.r[R_SR] & 0x08))
{
taken = true;
}
break;
case 0x2:
case 0x2: // G - GREATER
if (!(g_dsp.r[R_SR] & 0x08))
{
taken = true;
}
break;
case 0x4:
case 0x3: // LE - LESS EQUAL
if (g_dsp.r[R_SR] & 0x08)
taken = true;
break;
case 0x4: // NZ - NOT ZERO
if (!(g_dsp.r[R_SR] & 0x04))
{
taken = true;
}
break;
case 0x5:
case 0x5: // Z - ZERO
if (g_dsp.r[R_SR] & 0x04)
{
taken = true;
}
taken = true;
break;
case 0xc:
case 0x6: // L - LESS
break;
case 0x7: // GE - GREATER EQUAL
break;
case 0xc: // LNZ - LOGIC NOT ZERO
if (!(g_dsp.r[R_SR] & 0x40))
{
taken = true;
}
break;
case 0xd:
case 0xd: // LZ - LOGIC ZERO
if (g_dsp.r[R_SR] & 0x40)
{
taken = true;
}
break;
case 0xf:
case 0xf: // Empty
taken = true;
break;
@ -183,6 +171,7 @@ void unknown(const UDSPInstruction& opc)
//g_dsp.pc = g_dsp.err_pc;
}
// Generic call implementation
void call(const UDSPInstruction& opc)
{
u16 dest = dsp_fetch_code();
@ -194,7 +183,22 @@ void call(const UDSPInstruction& opc)
}
}
// The code for all ifs?
// Generic callr implementation
void callr(const UDSPInstruction& opc)
{
u16 addr;
u8 reg;
if (CheckCondition(opc.hex & 0xf))
{
reg = (opc.hex >> 5) & 0x7;
addr = dsp_op_read_reg(reg);
dsp_reg_store_stack(DSP_STACK_C, g_dsp.pc);
g_dsp.pc = addr;
}
}
// Generic if implementation
void ifcc(const UDSPInstruction& opc)
{
if (!CheckCondition(opc.hex & 0xf))
@ -203,7 +207,7 @@ void ifcc(const UDSPInstruction& opc)
}
}
// The code for all jumps?
// Generic jmp implementation
void jcc(const UDSPInstruction& opc)
{
u16 dest = dsp_fetch_code();
@ -214,30 +218,21 @@ void jcc(const UDSPInstruction& opc)
}
}
// FIXME inside
void jmpa(const UDSPInstruction& opc)
// Generic jmpr implementation
void jmprcc(const UDSPInstruction& opc)
{
u8 reg;
u16 addr;
if ((opc.hex & 0xf) != 0xf)
if (CheckCondition(opc.hex & 0xf))
{
// FIXME: Implement
ERROR_LOG(DSPHLE, "dsp jmpa opcode");
reg = (opc.hex >> 5) & 0x7;
addr = dsp_op_read_reg(reg);
g_dsp.pc = addr;
}
reg = (opc.hex >> 5) & 0x7;
addr = dsp_op_read_reg(reg);
if (opc.hex & 0x0010)
{
// CALLA
dsp_reg_store_stack(DSP_STACK_C, g_dsp.pc);
}
g_dsp.pc = addr;
}
// Generic ret implementation
void ret(const UDSPInstruction& opc)
{
if (CheckCondition(opc.hex & 0xf))
@ -481,6 +476,7 @@ void clr(const UDSPInstruction& opc)
Update_SR_Register((s64)0);
}
// TODO: is this correct???
void clrp(const UDSPInstruction& opc)
{
g_dsp.r[0x14] = 0x0000;