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mips: Add JALR/JR. QuickCallFunction should link.

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This commit is contained in:
Unknown W. Brackets 2014-11-18 09:12:16 -08:00
parent 5b18353584
commit 4de9b9692e
2 changed files with 26 additions and 8 deletions
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26
Common/MipsEmitter.cpp
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@ -81,7 +81,7 @@ void MIPSXEmitter::BREAK(u32 code) {
}
FixupBranch MIPSXEmitter::J() {
// 000010 iiiiiiiiiiiiiiiiiiiiiiiii (fix up)
// 000010 iiiiiiiiiiiiiiiiiiiiiiiiii (fix up)
FixupBranch b = MakeFixupBranch(BRANCH_26);
Write32Fields(26, 0x02);
return b;
@ -92,7 +92,7 @@ void MIPSXEmitter::J(const void *func) {
}
FixupBranch MIPSXEmitter::JAL() {
// 000011 iiiiiiiiiiiiiiiiiiiiiiiii (fix up)
// 000011 iiiiiiiiiiiiiiiiiiiiiiiiii (fix up)
FixupBranch b = MakeFixupBranch(BRANCH_26);
Write32Fields(26, 0x03);
return b;
@ -102,6 +102,18 @@ void MIPSXEmitter::JAL(const void *func) {
SetJumpTarget(JAL(), func);
}
void MIPSXEmitter::JR(MIPSReg rs) {
// 000000 sssss xxxxxxxxxx hint- 001000 (hint must be 0.)
_dbg_assert_msg_(JIT, rs < F_BASE, "Bad emitter arguments");
Write32Fields(26, 0x00, 21, rs, 0, 0x08);
}
void MIPSXEmitter::JALR(MIPSReg rd, MIPSReg rs) {
// 000000 sssss xxxxx ddddd hint- 001001 (hint must be 0.)
_dbg_assert_msg_(JIT, rs < F_BASE, "Bad emitter arguments");
Write32Fields(26, 0x00, 21, rs, 11, rd, 0, 0x09);
}
FixupBranch MIPSXEmitter::BEQ(MIPSReg rs, MIPSReg rt) {
// 000100 sssss ttttt iiiiiiiiiiiiiii (fix up)
_dbg_assert_msg_(JIT, rs < F_BASE && rt < F_BASE, "Bad emitter arguments");
@ -199,14 +211,12 @@ bool MIPSXEmitter::JInRange(const void *src, const void *dst) {
void MIPSXEmitter::QuickCallFunction(MIPSReg scratchreg, const void *func) {
_dbg_assert_msg_(JIT, scratchreg < F_BASE, "Bad emitter arguments");
if (BInRange(func)) {
B(func);
} else if (JInRange(func)) {
J(func);
if (JInRange(func)) {
JAL(func);
} else {
// This may never happen.
MOVP2R(reg, func);
JR(reg);
MOVP2R(scratchreg, func);
JALR(scratchreg);
}
}

8
Common/MipsEmitter.h
View File

@ -99,6 +99,14 @@ public:
void J(const void *func);
FixupBranch JAL();
void JAL(const void *func);
void JR(MIPSReg rs);
void JRRA() {
JR(R_RA);
}
void JALR(MIPSReg rd, MIPSReg rs);
void JALR(MIPSReg rs) {
JALR(R_RA, rs);
}
inline FixupBranch B() {
return BEQ(R_ZERO, R_ZERO);