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[DYNAREC] Save temporary registers on the stack before calling PrintT… #3876

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Merged
ptitSeb merged 1 commit into from
May 20, 2026
Merged

[DYNAREC] Save temporary registers on the stack before calling PrintT… #3876

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4 changes: 4 additions & 0 deletions src/dynarec/arm64/dynarec_arm64_private.h
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Original file line number Diff line number Diff line change
Expand Up @@ -225,6 +225,10 @@ int Table64(dynarec_arm_t *dyn, uint64_t val, int pass); // add a value to tabl

void CreateJmpNext(void* addr, void* next);

// TODO: Save and restore the temp register.
#define SAVE_ACTIVE_SCRATCH_REGISTERS do{} while(0);
#define LOAD_ACTIVE_SCRATCH_REGISTERS do{} while(0);

#define GO_TRACE(A, B, s0) \
GETIP(addr); \
MOVx_REG(x1, xRIP); \
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2 changes: 2 additions & 0 deletions src/dynarec/dynarec_native_pass.c
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Expand Up @@ -257,9 +257,11 @@ uintptr_t native_pass(dynarec_native_t* dyn, uintptr_t addr, int alternate, int
if((trace_end == 0)
|| ((ip >= trace_start) && (ip < trace_end))) {
MESSAGE(LOG_DUMP, "TRACE ----\n");
if (BOX64ENV(dynarec_nativeflags)) SAVE_ACTIVE_SCRATCH_REGISTERS;
fpu_reflectcache(dyn, ninst, x1, x2, x3);
GO_TRACE(PrintTrace, 1, x5);
fpu_unreflectcache(dyn, ninst, x1, x2, x3);
if (BOX64ENV(dynarec_nativeflags)) LOAD_ACTIVE_SCRATCH_REGISTERS;
MESSAGE(LOG_DUMP, "----------\n");
}
}
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4 changes: 4 additions & 0 deletions src/dynarec/la64/dynarec_la64_private.h
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Expand Up @@ -200,6 +200,10 @@ int Table64(dynarec_la64_t *dyn, uint64_t val, int pass); // add a value to tab

void CreateJmpNext(void* addr, void* next);

// TODO: Save and restore the temp register.
#define SAVE_ACTIVE_SCRATCH_REGISTERS do{} while(0);
#define LOAD_ACTIVE_SCRATCH_REGISTERS do{} while(0);

#define GO_TRACE(A, B, s0) \
GETIP(addr, s0); \
MV(x1, xRIP); \
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4 changes: 4 additions & 0 deletions src/dynarec/ppc64le/dynarec_ppc64le_private.h
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Expand Up @@ -218,6 +218,10 @@ int Table64(dynarec_ppc64le_t *dyn, uint64_t val, int pass); // add a value to

void CreateJmpNext(void* addr, void* next);

// TODO: Save and restore the temp register.
#define SAVE_ACTIVE_SCRATCH_REGISTERS do{} while(0);
#define LOAD_ACTIVE_SCRATCH_REGISTERS do{} while(0);

#define GO_TRACE(A, B, s0) \
GETIP(addr, s0); \
MV(x1, xRIP); \
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26 changes: 26 additions & 0 deletions src/dynarec/rv64/dynarec_rv64_private.h
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Expand Up @@ -216,6 +216,32 @@ int Table64(dynarec_rv64_t *dyn, uint64_t val, int pass); // add a value to tab

void CreateJmpNext(void* addr, void* next);

#define SAVE_ACTIVE_SCRATCH_REGISTERS \
do { \
uint8_t n1 = dyn->insts[ninst].nat_flags_op1; \
uint8_t n2 = dyn->insts[ninst].nat_flags_op2; \
if (IS_SCRATCH(n1) || IS_SCRATCH(n2)) { \
SUBI(xSP, xSP, 16); \
if (IS_SCRATCH(n1)) \
SD(n1, xSP, 0); \
if (n1 != n2 && IS_SCRATCH(n2)) \
SD(n2, xSP, 8); \
} \
} while(0);

#define LOAD_ACTIVE_SCRATCH_REGISTERS \
do { \
uint8_t n1 = dyn->insts[ninst].nat_flags_op1; \
uint8_t n2 = dyn->insts[ninst].nat_flags_op2; \
if (IS_SCRATCH(n1) || IS_SCRATCH(n2)) { \
if (IS_SCRATCH(n1)) \
LD(n1, xSP, 0); \
if (n1 != n2 && IS_SCRATCH(n2)) \
LD(n2, xSP, 8); \
ADDI(xSP, xSP, 16); \
} \
} while(0);

#define GO_TRACE(A, B, s0) \
GETIP(addr, s0); \
MV(x1, xRIP); \
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1 change: 1 addition & 0 deletions src/dynarec/rv64/rv64_mapping.h
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Expand Up @@ -69,6 +69,7 @@ x31 t6 x6 Temporary Scratch
// convert a x86 register to native according to the register mapping
#define TO_NAT(A) (((uint8_t[]) { 16, 13, 12, 24, 9, 8, 11, 10, 14, 15, 26, 27, 18, 19, 20, 21 })[(A)])
#define IS_GPR(A) (((uint8_t[]) { 0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 1, 1, 1, 1, 0, 0, 1, 0, 1, 1, 0, 0, 0, 0 })[(A)])
#define IS_SCRATCH(A) (((uint8_t[]) { 0, 0, 0, 0, 0, 0, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 1, 1 })[(A)])

#define x1 6
#define x2 7
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