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sh2 drc, fix 64 bit multiplication in ppc and riscv backends

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This commit is contained in:
kub 2023-03-07 21:54:36 +00:00
parent a26e663957
commit e278f08bed
2 changed files with 14 additions and 13 deletions
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16
cpu/drc/emit_ppc.c
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@ -420,23 +420,19 @@ enum { OPS_STD, OPS_STDU /*,OPS_STQ*/ };
// "long" multiplication, 32x32 bit = 64 bit
#define EMIT_PPC_MULLU_REG(dlo, dhi, s1, s2) do { \
EMIT(PPC_EXTUW_REG(s1, s1)); \
EMIT(PPC_EXTUW_REG(s2, s2)); \
EMIT(PPC_MULL(dlo, s1, s2)); \
EMIT(PPC_ASR_IMM(dhi, dlo, 32)); \
int at = (dlo == s1 || dlo == s2 ? AT : dlo); \
EMIT(PPC_MUL(at, s1, s2)); \
EMIT(PPC_MULHU(dhi, s1, s2)); \
if (at != dlo) emith_move_r_r(dlo, at); \
} while (0)
#define EMIT_PPC_MULLS_REG(dlo, dhi, s1, s2) do { \
EMIT(PPC_EXTSW_REG(s1, s1)); \
EMIT(PPC_EXTSW_REG(s2, s2)); \
EMIT(PPC_MULL(dlo, s1, s2)); \
EMIT(PPC_MUL(dlo, s1, s2)); \
EMIT(PPC_ASR_IMM(dhi, dlo, 32)); \
} while (0)
#define EMIT_PPC_MACLS_REG(dlo, dhi, s1, s2) do { \
EMIT(PPC_EXTSW_REG(s1, s1)); \
EMIT(PPC_EXTSW_REG(s2, s2)); \
EMIT(PPC_MULL(AT, s1, s2)); \
EMIT(PPC_MUL(AT, s1, s2)); \
EMIT(PPC_BFI_IMM(dlo, dhi, 0, 32)); \
emith_add_r_r(dlo, AT); \
EMIT(PPC_ASR_IMM(dhi, dlo, 32)); \

11
cpu/drc/emit_riscv.c
View file

@ -217,15 +217,20 @@ enum { F2_ALT=0x20, F2_MULDIV=0x01 };
#define PTR_SCALE 3
// NB: must split 64 bit result into 2 32 bit registers
// NB: expects 32 bit values in s1+s2, correctly sign extended to 64 bits
#define EMIT_R5_MULLU_REG(dlo, dhi, s1, s2) do { \
EMIT(R5_LSL_IMM(AT, s1, 32)); \
EMIT(R5_LSL_IMM(dhi, s2, 32)); \
EMIT(R5_MULHU(dlo, AT, dhi)); \
EMIT(R5_ASR_IMM(dhi, dlo, 32)); \
EMIT(R5_ADDW_IMM(dlo, dlo, 0)); \
} while (0)
#define EMIT_R5_MULLS_REG(dlo, dhi, s1, s2) do { \
EMIT(R5_MUL(dlo, s1, s2)); \
EMIT(R5_ASR_IMM(dhi, dlo, 32)); \
EMIT(R5_ADDW_IMM(dlo, dlo, 0)); \
} while (0)
#define EMIT_R5_MULLS_REG(dlo, dhi, s1, s2) \
EMIT_R5_MULLU_REG(dlo, dhi, s1, s2)
#else
#define R5_OP32 0
#define F1_P F1_W