[Qemu-devel] [PATCH v2 2/8] SPARC64: fp_disabled checks on ldfa/lddfa/ldqfa

[Tsuneo Saito]

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