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add some new instructions

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Ced2911 2013-08-26 21:38:02 +02:00
parent f1b11c63fc
commit 547b168dcb
2 changed files with 36 additions and 2 deletions
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33
Common/ppcEmitter.cpp
View File

@ -2,14 +2,28 @@
#include "ppcEmitter.h"
// Helper
// 0 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31
// | OPCD | D | A | B | XO |Rc|
#define X_FORM(OPCD, D, A, B, XO, Rc) { \
int a = (A), b = (B), d = (D); \
Write32((OPCD << 26) | (d << 21) | (a << 16) | (b << 11) | (((XO) & 0x3ff) << 1) | (Rc)); \
}
// 0 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31
// | OPCD | D | A | B |OE| XO |Rc|
#define XO_FORM(OPCD, D, A, B, OE, XO, Rc) { \
int a = (A), b = (B), d = (D); \
Write32((OPCD << 26) | (d << 21) | (a << 16) | (b << 11) | (OE << 10) | (((XO) & 0x1ff) << 1) | (Rc)); \
}
namespace PpcGen {
// Arithmetics ops
// Arithmetics ops
void PPCXEmitter::ADDZE (PPCReg Rd, PPCReg Ra) {
XO_FORM(31, Rd, Ra, 0, 0, 202, 0);
}
void PPCXEmitter::ADD (PPCReg Rd, PPCReg Ra, PPCReg Rb) {
u32 instr = (0x7C000214 | (Rd << 21) | (Ra << 16) | (Rb << 11));
Write32(instr);
@ -378,6 +392,10 @@ namespace PpcGen {
u32 instr = (0x7C000278 | (Ra << 21) | (Rd << 16) | (Rb << 11));
Write32(instr);
}
void PPCXEmitter::NEG(PPCReg Rd, PPCReg Ra) {
XO_FORM(31, Rd, Ra, 0, 0, 104, 0);
}
void PPCXEmitter::NOR(PPCReg Rd, PPCReg Ra, PPCReg Rb) {
@ -389,6 +407,15 @@ namespace PpcGen {
u32 instr = (0x7C000050 | (Rd << 21) | (Ra << 16) | (Rb << 11) | (RCFlags & 1));
Write32(instr);
}
void PPCXEmitter::SUBFC (PPCReg Rd, PPCReg Ra, PPCReg Rb) {
XO_FORM(31, Rd, Ra, Rb, 0, 8, 0);
}
void PPCXEmitter::SUBFE(PPCReg Rd, PPCReg Ra, PPCReg Rb) {
XO_FORM(31, Rd, Ra, Rb, 0, 136, 0);
}
// Quick Call
// dest = LIS(imm) + ORI(+imm)
@ -427,6 +454,10 @@ namespace PpcGen {
Write32(0x7C000734 | (src << 21) | (dest << 16));
}
void PPCXEmitter::EQV (PPCReg dst, PPCReg a, PPCReg b) {
X_FORM(31, a, dst, b, 284, 0);
}
void PPCXEmitter::RLWINM (PPCReg dest, PPCReg src, int shift, int start, int end) {
Write32((21<<26) | (src << 21) | (dest << 16) | (shift << 11) | (start << 6) | (end << 1));
}

5
Common/ppcEmitter.h
View File

@ -219,13 +219,15 @@ namespace PpcGen
void NOR (PPCReg Rs, PPCReg Ra, PPCReg Rb);
void XOR (PPCReg Rs, PPCReg Ra, PPCReg Rb);
void XORI (PPCReg Rdest, PPCReg Ra, unsigned short imm);
void NEG (PPCReg Rs, PPCReg Ra, PPCReg Rb);
void NEG (PPCReg Rs, PPCReg Ra);
void EQV (PPCReg a, PPCReg b, PPCReg c);
// Arithmetics ops
void ADD (PPCReg Rd, PPCReg Ra, PPCReg Rb);
void ADDI (PPCReg Rd, PPCReg Ra, short imm);
void ADDIS (PPCReg Rd, PPCReg Ra, short imm);
void ADDC (PPCReg Rd, PPCReg Ra, PPCReg Rb);
void ADDZE (PPCReg Rd, PPCReg Ra);
void SUB (PPCReg Rd, PPCReg Ra, PPCReg Rb) {
// reverse ?
SUBF(Rd, Rb, Ra);
@ -233,6 +235,7 @@ namespace PpcGen
// if RCFlags update CR0
void SUBF (PPCReg Rd, PPCReg Ra, PPCReg Rb, int RCFlags = 0);
void SUBFC (PPCReg Rd, PPCReg Ra, PPCReg Rb);
void SUBFE (PPCReg Rd, PPCReg Ra, PPCReg Rb);
// Floating ops
void DIVW(PPCReg dest, PPCReg dividend, PPCReg divisor);