diff options
| author | aurel32 <aurel32@c046a42c-6fe2-441c-8c8c-71466251a162> | 2009-02-03 19:56:09 +0000 |
|---|---|---|
| committer | aurel32 <aurel32@c046a42c-6fe2-441c-8c8c-71466251a162> | 2009-02-03 19:56:09 +0000 |
| commit | 6e87b7c7bf4ead3ef2d59a657608901334da35cb (patch) | |
| tree | fb1896fe6d663abdf203d9e39cee03fe45dc56cb /target-ppc | |
| parent | cf8358c8f784561e2ffd4d2eb66fccfca6301f67 (diff) | |
Make mtvscr use a helper
Do this so we can set float statuses once per mtvscr, rather than once
per Altivec instruction.
Signed-off-by: Nathan Froyd <froydnj@codesourcery.com>
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@6508 c046a42c-6fe2-441c-8c8c-71466251a162
Diffstat (limited to 'target-ppc')
| -rw-r--r-- | target-ppc/helper.h | 1 | ||||
| -rw-r--r-- | target-ppc/op_helper.c | 10 | ||||
| -rw-r--r-- | target-ppc/translate.c | 9 |
3 files changed, 15 insertions, 5 deletions
diff --git a/target-ppc/helper.h b/target-ppc/helper.h index 755bfbae48..8c04ba71b0 100644 --- a/target-ppc/helper.h +++ b/target-ppc/helper.h @@ -220,6 +220,7 @@ DEF_HELPER_4(vmsumuhs, void, avr, avr, avr, avr) DEF_HELPER_4(vmsumshm, void, avr, avr, avr, avr) DEF_HELPER_4(vmsumshs, void, avr, avr, avr, avr) DEF_HELPER_4(vmladduhm, void, avr, avr, avr, avr) +DEF_HELPER_1(mtvscr, void, avr); DEF_HELPER_2(lvebx, void, avr, tl) DEF_HELPER_2(lvehx, void, avr, tl) DEF_HELPER_2(lvewx, void, avr, tl) diff --git a/target-ppc/op_helper.c b/target-ppc/op_helper.c index 5a5a06ed7d..efeac83291 100644 --- a/target-ppc/op_helper.c +++ b/target-ppc/op_helper.c @@ -2050,6 +2050,16 @@ STVE(stvewx, stl, bswap32, u32) #undef I #undef LVE +void helper_mtvscr (ppc_avr_t *r) +{ +#if defined(WORDS_BIGENDIAN) + env->vscr = r->u32[3]; +#else + env->vscr = r->u32[0]; +#endif + set_flush_to_zero(vscr_nj, &env->vec_status); +} + void helper_vaddcuw (ppc_avr_t *r, ppc_avr_t *a, ppc_avr_t *b) { int i; diff --git a/target-ppc/translate.c b/target-ppc/translate.c index 1cc78cd9cd..59e4ced45d 100644 --- a/target-ppc/translate.c +++ b/target-ppc/translate.c @@ -6268,15 +6268,14 @@ GEN_HANDLER(mfvscr, 0x04, 0x2, 0x18, 0x001ff800, PPC_ALTIVEC) GEN_HANDLER(mtvscr, 0x04, 0x2, 0x19, 0x03ff0000, PPC_ALTIVEC) { - TCGv_i32 t; + TCGv_ptr p; if (unlikely(!ctx->altivec_enabled)) { gen_exception(ctx, POWERPC_EXCP_VPU); return; } - t = tcg_temp_new_i32(); - tcg_gen_trunc_i64_i32(t, cpu_avrl[rD(ctx->opcode)]); - tcg_gen_st_i32(t, cpu_env, offsetof(CPUState, vscr)); - tcg_temp_free_i32(t); + p = gen_avr_ptr(rD(ctx->opcode)); + gen_helper_mtvscr(p); + tcg_temp_free_ptr(p); } /* Logical operations */ |