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[Qemu-devel] [PATCH v2 2/8] SPARC64: fp_disabled checks on ldfa/lddfa/ld
From: |
Tsuneo Saito |
Subject: |
[Qemu-devel] [PATCH v2 2/8] SPARC64: fp_disabled checks on ldfa/lddfa/ldqfa |
Date: |
Thu, 14 Jul 2011 18:41:37 +0900 |
ldfa/lddfa/ldqfa instructions should raise fp_disabled exceptions
if %pstate.PEF==0 or %fprs.FEF==0.
Signed-off-by: Tsuneo Saito <address@hidden>
---
target-sparc/translate.c | 9 +++++++++
1 files changed, 9 insertions(+), 0 deletions(-)
diff --git a/target-sparc/translate.c b/target-sparc/translate.c
index f32a674..1e7e68d 100644
--- a/target-sparc/translate.c
+++ b/target-sparc/translate.c
@@ -4484,10 +4484,16 @@ static void disas_sparc_insn(DisasContext * dc)
case 0x2d: /* V9 prefetch, no effect */
goto skip_move;
case 0x30: /* V9 ldfa */
+ if (gen_trap_ifnofpu(dc, cpu_cond)) {
+ goto jmp_insn;
+ }
save_state(dc, cpu_cond);
gen_ldf_asi(cpu_addr, insn, 4, rd);
goto skip_move;
case 0x33: /* V9 lddfa */
+ if (gen_trap_ifnofpu(dc, cpu_cond)) {
+ goto jmp_insn;
+ }
save_state(dc, cpu_cond);
gen_ldf_asi(cpu_addr, insn, 8, DFPREG(rd));
goto skip_move;
@@ -4495,6 +4501,9 @@ static void disas_sparc_insn(DisasContext * dc)
goto skip_move;
case 0x32: /* V9 ldqfa */
CHECK_FPU_FEATURE(dc, FLOAT128);
+ if (gen_trap_ifnofpu(dc, cpu_cond)) {
+ goto jmp_insn;
+ }
save_state(dc, cpu_cond);
gen_ldf_asi(cpu_addr, insn, 16, QFPREG(rd));
goto skip_move;
--
1.7.5.4
- [Qemu-devel] [PATCH v2 0/8] SPARC64: Implement sparcv9 ldfa/stfa instructions, Tsuneo Saito, 2011/07/14
- [Qemu-devel] [PATCH v2 1/8] SPARC64: Implement ldfa/lddfa/ldqfa instructions properly, Tsuneo Saito, 2011/07/14
- [Qemu-devel] [PATCH v2 2/8] SPARC64: fp_disabled checks on ldfa/lddfa/ldqfa,
Tsuneo Saito <=
- [Qemu-devel] [PATCH v2 3/8] SPARC64: Implement stfa/stdfa/stqfa instrcutions properly, Tsuneo Saito, 2011/07/14
- [Qemu-devel] [PATCH v2 4/8] SPARC64: fp_disabled checks on stfa/stdfa/stqfa, Tsuneo Saito, 2011/07/14
- [Qemu-devel] [PATCH v2 6/8] SPARC64: Add UA2007 ASI_BLK_AIU[PS]L? ASIs for stfa, Tsuneo Saito, 2011/07/14
- [Qemu-devel] [PATCH v2 5/8] SPARC64: Add UA2007 ASI_BLK_AIU[PS]L? ASIs for ldfa, Tsuneo Saito, 2011/07/14
- [Qemu-devel] [PATCH v2 7/8] SPARC64: Add JPS1 ASI_BLK_AIU[PS]L ASIs for ldfa and stfa, Tsuneo Saito, 2011/07/14