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Full implementation of IEEE exceptions (Aurelien Jarno)

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git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@2625 c046a42c-6fe2-441c-8c8c-71466251a162
This commit is contained in:
blueswir1 2007-04-06 20:03:29 +00:00
parent c185970a0e
commit 417454b032
4 changed files with 154 additions and 14 deletions
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25
target-sparc/translate.c
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@ -943,6 +943,21 @@ static GenOpFunc * const gen_fcmpd[4] = {
gen_op_fcmpd_fcc2,
gen_op_fcmpd_fcc3,
};
static GenOpFunc * const gen_fcmpes[4] = {
gen_op_fcmpes,
gen_op_fcmpes_fcc1,
gen_op_fcmpes_fcc2,
gen_op_fcmpes_fcc3,
};
static GenOpFunc * const gen_fcmped[4] = {
gen_op_fcmped,
gen_op_fcmped_fcc1,
gen_op_fcmped_fcc2,
gen_op_fcmped_fcc3,
};
#endif
static int gen_trap_ifnofpu(DisasContext * dc)
@ -1289,6 +1304,7 @@ static void disas_sparc_insn(DisasContext * dc)
} else if (xop == 0x34) { /* FPU Operations */
if (gen_trap_ifnofpu(dc))
goto jmp_insn;
gen_op_clear_ieee_excp_and_FTT();
rs1 = GET_FIELD(insn, 13, 17);
rs2 = GET_FIELD(insn, 27, 31);
xop = GET_FIELD(insn, 18, 26);
@ -1476,6 +1492,7 @@ static void disas_sparc_insn(DisasContext * dc)
#endif
if (gen_trap_ifnofpu(dc))
goto jmp_insn;
gen_op_clear_ieee_excp_and_FTT();
rs1 = GET_FIELD(insn, 13, 17);
rs2 = GET_FIELD(insn, 27, 31);
xop = GET_FIELD(insn, 18, 26);
@ -1653,18 +1670,18 @@ static void disas_sparc_insn(DisasContext * dc)
gen_op_load_fpr_FT0(rs1);
gen_op_load_fpr_FT1(rs2);
#ifdef TARGET_SPARC64
gen_fcmps[rd & 3]();
gen_fcmpes[rd & 3]();
#else
gen_op_fcmps(); /* XXX should trap if qNaN or sNaN */
gen_op_fcmpes();
#endif
break;
case 0x56: /* fcmped, V9 %fcc */
gen_op_load_fpr_DT0(DFPREG(rs1));
gen_op_load_fpr_DT1(DFPREG(rs2));
#ifdef TARGET_SPARC64
gen_fcmpd[rd & 3]();
gen_fcmped[rd & 3]();
#else
gen_op_fcmpd(); /* XXX should trap if qNaN or sNaN */
gen_op_fcmped();
#endif
break;
case 0x57: /* fcmpeq */