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Convert udivx and sdivx to TCG 

git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@4064 c046a42c-6fe2-441c-8c8c-71466251a162
This commit is contained in:
blueswir1 2008-03-14 19:42:42 +00:00
parent e01a11572f
commit 1a7b60e727
2 changed files with 30 additions and 24 deletions
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23
target-sparc/op.c
View File

@ -269,29 +269,6 @@ void OPPROTO op_sdiv_T1_T0(void)
FORCE_RET();
}
#ifdef TARGET_SPARC64
void OPPROTO op_udivx_T1_T0(void)
{
if (T1 == 0) {
raise_exception(TT_DIV_ZERO);
}
T0 /= T1;
FORCE_RET();
}
void OPPROTO op_sdivx_T1_T0(void)
{
if (T1 == 0) {
raise_exception(TT_DIV_ZERO);
}
if (T0 == INT64_MIN && T1 == -1)
T0 = INT64_MIN;
else
T0 /= (target_long) T1;
FORCE_RET();
}
#endif
/* Load and store */
#define MEMSUFFIX _raw
#include "op_mem.h"

31
target-sparc/translate.c
View File

@ -729,6 +729,34 @@ static inline void gen_op_tsub_T1_T0_ccTV(void)
gen_cc_C_sub(cpu_cc_src, cpu_T[1]);
}
#ifdef TARGET_SPARC64
static inline void gen_trap_ifdivzero_i64(TCGv divisor)
{
int l1;
l1 = gen_new_label();
tcg_gen_brcond_i64(TCG_COND_NE, divisor, tcg_const_tl(0), l1);
gen_op_exception(TT_DIV_ZERO);
gen_set_label(l1);
}
static inline void gen_op_sdivx_T1_T0(void)
{
int l1, l2;
l1 = gen_new_label();
l2 = gen_new_label();
gen_trap_ifdivzero_i64(cpu_T[1]);
tcg_gen_brcond_i64(TCG_COND_NE, cpu_T[0], tcg_const_i64(INT64_MIN), l1);
tcg_gen_brcond_i64(TCG_COND_NE, cpu_T[1], tcg_const_i64(-1), l1);
tcg_gen_movi_i64(cpu_T[0], INT64_MIN);
gen_op_jmp_label(l2);
gen_set_label(l1);
tcg_gen_div_i64(cpu_T[0], cpu_T[0], cpu_T[1]);
gen_set_label(l2);
}
#endif
static inline void gen_op_div_cc(void)
{
int l1;
@ -3037,7 +3065,8 @@ static void disas_sparc_insn(DisasContext * dc)
break;
#ifdef TARGET_SPARC64
case 0xd: /* V9 udivx */
gen_op_udivx_T1_T0();
gen_trap_ifdivzero_i64(cpu_T[1]);
tcg_gen_divu_i64(cpu_T[0], cpu_T[0], cpu_T[1]);
break;
#endif
case 0xe: