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target/m68k: pass sign directly into make_quotient()

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This enables the quotient parameter to be changed from int32_t to uint32_t and
also allows the extra sign logic in make_quotient() to be removed.

Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Laurent Vivier <laurent@vivier.eu>
Message-Id: <20230114232959.118224-3-mark.cave-ayland@ilande.co.uk>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
This commit is contained in:
Mark Cave-Ayland 2023-01-14 23:29:57 +00:00 committed by Laurent Vivier
parent 3ec21437b1
commit 60b598df6e
1 changed files with 13 additions and 10 deletions
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23
target/m68k/fpu_helper.c
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@ -515,39 +515,42 @@ uint32_t HELPER(fmovemd_ld_postinc)(CPUM68KState *env, uint32_t addr,
return fmovem_postinc(env, addr, mask, cpu_ld_float64_ra);
}
static void make_quotient(CPUM68KState *env, int32_t quotient)
static void make_quotient(CPUM68KState *env, int sign, uint32_t quotient)
{
int sign;
sign = quotient < 0;
if (sign) {
quotient = -quotient;
}
quotient = (sign << 7) | (quotient & 0x7f);
env->fpsr = (env->fpsr & ~FPSR_QT_MASK) | (quotient << FPSR_QT_SHIFT);
}
void HELPER(fmod)(CPUM68KState *env, FPReg *res, FPReg *val0, FPReg *val1)
{
uint32_t quotient;
int sign;
res->d = floatx80_mod(val1->d, val0->d, &env->fp_status);
if (floatx80_is_any_nan(res->d)) {
return;
}
make_quotient(env, floatx80_to_int32(res->d, &env->fp_status));
sign = extractFloatx80Sign(res->d);
quotient = floatx80_to_int32(floatx80_abs(res->d), &env->fp_status);
make_quotient(env, sign, quotient);
}
void HELPER(frem)(CPUM68KState *env, FPReg *res, FPReg *val0, FPReg *val1)
{
uint32_t quotient;
int sign;
res->d = floatx80_rem(val1->d, val0->d, &env->fp_status);
if (floatx80_is_any_nan(res->d)) {
return;
}
make_quotient(env, floatx80_to_int32(res->d, &env->fp_status));
sign = extractFloatx80Sign(res->d);
quotient = floatx80_to_int32(floatx80_abs(res->d), &env->fp_status);
make_quotient(env, sign, quotient);
}
void HELPER(fgetexp)(CPUM68KState *env, FPReg *res, FPReg *val)