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DSP: Fix opcode masking for ops with extensions. 

git-svn-id: https://dolphin-emu.googlecode.com/svn/trunk@2886 8ced0084-cf51-0410-be5f-012b33b47a6e
This commit is contained in:
hrydgard 2009-04-05 19:30:06 +00:00
parent 5508e5e718
commit 8b6b8b61c3
2 changed files with 25 additions and 8 deletions
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2
Source/Plugins/Plugin_DSP_LLE-testing/Src/DSPInterpreter.cpp
View File

@ -410,6 +410,8 @@ void cmp(const UDSPInstruction& opc)
Update_SR_Register64(acc0 - acc1);
}
// WARNING - this instruction is being called by other instructions!!!!!
// Is that sane?
void tsta(const UDSPInstruction& opc)
{
u8 reg = (opc.hex >> 11) & 0x1;

29
Source/Plugins/Plugin_DSP_LLE-testing/Src/DSPTables.cpp
View File

@ -223,7 +223,8 @@ DSPOPCTemplate opcodes[] =
{"CMP", 0x8200, 0xffff, DSPInterpreter::cmp, nop, 1 | P_EXT, 0, {}, dsp_op_ext_ops_pro, dsp_op_ext_ops_epi},
// {"CMPAR" , 0xc100, 0xe7ff, DSPInterpreter::cmpar, nop, 1 | P_EXT, 2, {{P_ACCM, 1, 0, 12, 0x1000}, {P_REG1A, 1, 0, 11, 0x0800}}, dsp_op_ext_ops_pro, dsp_op_ext_ops_epi},
// This op does NOT exist, at least not under this name, in duddie's docs!
{"CMPAR" , 0xc100, 0xe7ff, DSPInterpreter::cmpar, nop, 1 | P_EXT, 2, {{P_ACCM, 1, 0, 12, 0x1000}, {P_REG1A, 1, 0, 11, 0x0800}}, dsp_op_ext_ops_pro, dsp_op_ext_ops_epi},
{"CLRAL0", 0xfc00, 0xffff, nop, nop, 1 | P_EXT, 0, {}, dsp_op_ext_ops_pro, dsp_op_ext_ops_epi}, // clear acl0
{"CLRAL1", 0xfd00, 0xffff, nop, nop, 1 | P_EXT, 0, {}, dsp_op_ext_ops_pro, dsp_op_ext_ops_epi}, // clear acl1
@ -322,24 +323,38 @@ dspInstFunc epilogueTable[OPTABLE_SIZE];
void InitInstructionTable()
{
for (u32 i = 0; i < OPTABLE_SIZE; i++) {
for (u32 i = 0; i < OPTABLE_SIZE; i++)
{
opTable[i] = DSPInterpreter::unknown;
prologueTable[i] = NULL;
epilogueTable[i] = NULL;
opSize[i] = 0;
}
for (u32 i = 0; i < OPTABLE_SIZE; i++) {
for (u32 i = 0; i < OPTABLE_SIZE; i++)
{
for (u32 j = 0; j < opcodes_size; j++)
if ((opcodes[j].opcode_mask & i) == opcodes[j].opcode) {
if (opTable[i] == DSPInterpreter::unknown) {
{
u16 mask = opcodes[j].opcode_mask;
if (opcodes[j].size & P_EXT) {
// Ignore extension bits.
mask &= 0xFF00;
}
if ((mask & i) == opcodes[j].opcode)
{
if (opTable[i] == DSPInterpreter::unknown)
{
opTable[i] = opcodes[j].interpFunc;
opSize[i] = opcodes[j].size;
opSize[i] = opcodes[j].size & 3;
prologueTable[i] = opcodes[j].prologue;
epilogueTable[i] = opcodes[j].epilogue;
} else {
}
else
{
ERROR_LOG(DSPHLE, "opcode table place %d already in use for %s", i, opcodes[j].name);
}
}
}
}
}