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Convert ldfsr and stfsr to TCG 

git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@4067 c046a42c-6fe2-441c-8c8c-71466251a162
This commit is contained in:
blueswir1 2008-03-15 18:11:06 +00:00
parent 54728ac6db
commit bb5529bb62
4 changed files with 10 additions and 13 deletions
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1
target-sparc/helper.h
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@ -34,6 +34,7 @@ uint64_t TCG_HELPER_PROTO helper_ld_asi(target_ulong addr, int asi,
void TCG_HELPER_PROTO helper_st_asi(target_ulong addr, uint64_t val, int asi,
int size);
void TCG_HELPER_PROTO helper_ldfsr(void);
void TCG_HELPER_PROTO helper_stfsr(void);
void TCG_HELPER_PROTO helper_check_ieee_exceptions(void);
void TCG_HELPER_PROTO helper_clear_float_exceptions(void);
void TCG_HELPER_PROTO helper_fabss(void);

10
target-sparc/op.c
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@ -285,16 +285,6 @@ void OPPROTO op_sdiv_T1_T0(void)
#endif
#endif
void OPPROTO op_ldfsr(void)
{
PUT_FSR32(env, *((uint32_t *) &FT0));
}
void OPPROTO op_stfsr(void)
{
*((uint32_t *) &FT0) = GET_FSR32(env);
}
#ifndef TARGET_SPARC64
/* XXX: use another pointer for %iN registers to avoid slow wrapping
handling ? */

9
target-sparc/op_helper.c
View File

@ -1590,6 +1590,8 @@ uint64_t helper_pack64(target_ulong high, target_ulong low)
void helper_ldfsr(void)
{
int rnd_mode;
PUT_FSR32(env, *((uint32_t *) &FT0));
switch (env->fsr & FSR_RD_MASK) {
case FSR_RD_NEAREST:
rnd_mode = float_round_nearest_even;
@ -1608,7 +1610,12 @@ void helper_ldfsr(void)
set_float_rounding_mode(rnd_mode, &env->fp_status);
}
void helper_debug()
void helper_stfsr(void)
{
*((uint32_t *) &FT0) = GET_FSR32(env);
}
void helper_debug(void)
{
env->exception_index = EXCP_DEBUG;
cpu_loop_exit();

3
target-sparc/translate.c
View File

@ -4259,7 +4259,6 @@ static void disas_sparc_insn(DisasContext * dc)
case 0x21: /* load fsr */
gen_op_check_align_T0_3();
gen_op_ldst(ldf);
gen_op_ldfsr();
tcg_gen_helper_0_0(helper_ldfsr);
break;
case 0x22: /* load quad fpreg */
@ -4415,7 +4414,7 @@ static void disas_sparc_insn(DisasContext * dc)
#ifdef CONFIG_USER_ONLY
gen_op_check_align_T0_3();
#endif
gen_op_stfsr();
tcg_gen_helper_0_0(helper_stfsr);
gen_op_ldst(stf);
break;
case 0x26: