piwalker/dolphin
1
0
Fork 0
mirror of https://github.com/dolphin-emu/dolphin.git synced 2025-07-25 23:29:44 -06:00
Code Issues Packages Projects Releases Wiki Activity

DSPLLE: Opcode LUT Cleanup

Browse Source 
ABI: Far Call --> Call (thanks to correct vcproj settings)

git-svn-id: https://dolphin-emu.googlecode.com/svn/trunk@5250 8ced0084-cf51-0410-be5f-012b33b47a6e
This commit is contained in:
XTra.KrazzY
2010-03-29 01:18:05 +00:00
parent 49d568488c
commit a8865d21b3
6 changed files with 54 additions and 79 deletions
Download Patch File Download Diff File Expand all files Collapse all files

46
Source/Core/DSPCore/Src/DSPTables.h
View File

@ -68,28 +68,6 @@ enum partype_t
#define EXT_OPTABLE_SIZE 0xff + 1
typedef u16 UDSPInstruction;
/*/union UDSPInstruction
{
u16 hex;
UDSPInstruction(u16 _hex) { hex = _hex; }
UDSPInstruction() { hex = 0; }
struct
{
signed shift : 6;
unsigned negating : 1;
unsigned arithmetic : 1;
unsigned areg : 1;
unsigned op : 7;
};
struct
{
unsigned ushift : 6;
};
// TODO: Figure out more instruction structures (add structs here)
};*/
typedef void (*dspInstFunc)(const UDSPInstruction);
@ -125,14 +103,12 @@ extern const DSPOPCTemplate opcodes[];
extern const int opcodes_size;
extern const DSPOPCTemplate opcodes_ext[];
extern const int opcodes_ext_size;
extern u8 opSize[OPTABLE_SIZE];
extern const DSPOPCTemplate cw;
#define WRITEBACKLOGSIZE 7
extern dspInstFunc opTable[];
extern bool opTableUseExt[OPTABLE_SIZE];
extern dspInstFunc extOpTable[EXT_OPTABLE_SIZE];
extern const DSPOPCTemplate *opTable[OPTABLE_SIZE];
extern const DSPOPCTemplate *extOpTable[EXT_OPTABLE_SIZE];
extern u16 writeBackLog[WRITEBACKLOGSIZE];
extern int writeBackLogIdx[WRITEBACKLOGSIZE];
@ -157,22 +133,22 @@ void applyWriteBackLog();
void zeroWriteBackLog();
void zeroWriteBackLogPreserveAcc(u8 acc);
const DSPOPCTemplate *GetOpTemplate(const UDSPInstruction &inst);
inline void ExecuteInstruction(const UDSPInstruction inst)
{
if (opTableUseExt[inst]) {
const DSPOPCTemplate *tinst = GetOpTemplate(inst);
if (tinst->extended) {
if ((inst >> 12) == 0x3)
extOpTable[inst & 0x7F](inst);
extOpTable[inst & 0x7F]->interpFunc(inst);
else
extOpTable[inst & 0xFF](inst);
extOpTable[inst & 0xFF]->interpFunc(inst);
}
opTable[inst](inst);
if (opTableUseExt[inst]) {
tinst->interpFunc(inst);
if (tinst->extended) {
applyWriteBackLog();
}
}
// This one's pretty slow, try to use it only at init or seldomly.
// returns NULL if no matching instruction.
const DSPOPCTemplate *GetOpTemplate(const UDSPInstruction &inst);
#endif // _DSPTABLES_H