commit 8872eb4f567b9ae36dbd9c320f6a86c53a776d43
author Tsuneo Saito <tsnsaito@gmail.com> Thu Jul 14 18:41:37 2011 +0900
committer Blue Swirl <blauwirbel@gmail.com> Thu Jul 14 15:35:01 2011 +0000
tree 0c1207cbd1a28024e5fe34c246da79b0c9260d2f
parent 4183f36df0bf8cb82dda423414aa3b1a82e91ce9

SPARC64: fp_disabled checks on ldfa/lddfa/ldqfa

ldfa/lddfa/ldqfa instructions should raise fp_disabled exceptions
if %pstate.PEF==0 or %fprs.FEF==0.

Signed-off-by: Tsuneo Saito <tsnsaito@gmail.com>
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>

target-sparc/translate.c

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 @@
                 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 @@
                     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;