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target-sh4: implement addc and subc using TCG

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Now that setcond is available, the addc and subc can easily be
implemented using TCG.

Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
This commit is contained in:
Aurelien Jarno 2012-09-16 13:12:20 +02:00
parent ff2086fed2
commit 22b88fd77e
3 changed files with 36 additions and 36 deletions
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32
target-sh4/op_helper.c
View file

@ -177,22 +177,6 @@ void helper_ocbi(CPUSH4State *env, uint32_t address)
}
}
uint32_t helper_addc(CPUSH4State *env, uint32_t arg0, uint32_t arg1)
{
uint32_t tmp0, tmp1;
tmp1 = arg0 + arg1;
tmp0 = arg1;
arg1 = tmp1 + (env->sr & 1);
if (tmp0 > tmp1)
env->sr |= SR_T;
else
env->sr &= ~SR_T;
if (tmp1 > arg1)
env->sr |= SR_T;
return arg1;
}
uint32_t helper_addv(CPUSH4State *env, uint32_t arg0, uint32_t arg1)
{
uint32_t dest, src, ans;
@ -375,22 +359,6 @@ void helper_macw(CPUSH4State *env, uint32_t arg0, uint32_t arg1)
}
}
uint32_t helper_subc(CPUSH4State *env, uint32_t arg0, uint32_t arg1)
{
uint32_t tmp0, tmp1;
tmp1 = arg1 - arg0;
tmp0 = arg1;
arg1 = tmp1 - (env->sr & SR_T);
if (tmp0 < tmp1)
env->sr |= SR_T;
else
env->sr &= ~SR_T;
if (tmp1 < arg1)
env->sr |= SR_T;
return arg1;
}
uint32_t helper_subv(CPUSH4State *env, uint32_t arg0, uint32_t arg1)
{
int32_t dest, src, ans;