haraldwolff/qemu-patch-raspberry4
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SPARC64: fp_disabled checks on ldfa/lddfa/ldqfa

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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>
This commit is contained in:
Tsuneo Saito 2011-07-14 18:41:37 +09:00 committed by Blue Swirl
parent 4183f36df0
commit 8872eb4f56
1 changed files with 9 additions and 0 deletions
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9
target-sparc/translate.c
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@ -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;