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[Qemu-devel] [PATCH 18/40] Add v{add, sub}{s, u}{b, h, w}s instructions.
From: |
Nathan Froyd |
Subject: |
[Qemu-devel] [PATCH 18/40] Add v{add, sub}{s, u}{b, h, w}s instructions. |
Date: |
Tue, 30 Dec 2008 19:10:00 -0800 |
Signed-off-by: Nathan Froyd <address@hidden>
---
target-ppc/helper.h | 12 ++++++++++++
target-ppc/op_helper.c | 46 ++++++++++++++++++++++++++++++++++++++++++++++
target-ppc/translate.c | 12 ++++++++++++
3 files changed, 70 insertions(+), 0 deletions(-)
diff --git a/target-ppc/helper.h b/target-ppc/helper.h
index 1d05cb2..4e1c307 100644
--- a/target-ppc/helper.h
+++ b/target-ppc/helper.h
@@ -161,6 +161,18 @@ DEF_HELPER_3(vaddcuw, void, avr, avr, avr)
DEF_HELPER_3(vsubcuw, void, avr, avr, avr)
DEF_HELPER_2(lvsl, void, avr, tl);
DEF_HELPER_2(lvsr, void, avr, tl);
+DEF_HELPER_3(vaddsbs, void, avr, avr, avr)
+DEF_HELPER_3(vaddshs, void, avr, avr, avr)
+DEF_HELPER_3(vaddsws, void, avr, avr, avr)
+DEF_HELPER_3(vsubsbs, void, avr, avr, avr)
+DEF_HELPER_3(vsubshs, void, avr, avr, avr)
+DEF_HELPER_3(vsubsws, void, avr, avr, avr)
+DEF_HELPER_3(vaddubs, void, avr, avr, avr)
+DEF_HELPER_3(vadduhs, void, avr, avr, avr)
+DEF_HELPER_3(vadduws, void, avr, avr, avr)
+DEF_HELPER_3(vsububs, void, avr, avr, avr)
+DEF_HELPER_3(vsubuhs, void, avr, avr, avr)
+DEF_HELPER_3(vsubuws, void, avr, avr, avr)
DEF_HELPER_1(efscfsi, i32, i32)
DEF_HELPER_1(efscfui, i32, i32)
diff --git a/target-ppc/op_helper.c b/target-ppc/op_helper.c
index 0b44e7c..1468656 100644
--- a/target-ppc/op_helper.c
+++ b/target-ppc/op_helper.c
@@ -2015,6 +2015,52 @@ VARITH(uwm, u32)
#undef VARITH_DO
#undef VARITH
+#define VARITHSAT_CASE(type, op, min, max, use_min, use_max, element) \
+ { \
+ type result = (type)a->element[i] op (type)b->element[i]; \
+ if (use_min && result < min) { \
+ result = min; \
+ sat = 1; \
+ } else if (use_max && result > max) { \
+ result = max; \
+ sat = 1; \
+ } \
+ r->element[i] = result; \
+ }
+
+#define VARITHSAT_DO(name, op, min, max, use_min, use_max, element) \
+ void helper_v##name (ppc_avr_t *r, ppc_avr_t *a, ppc_avr_t *b) \
+ { \
+ int sat = 0; \
+ int i; \
+ for (i = 0; i < ARRAY_SIZE(r->element); i++) { \
+ switch (sizeof(r->element[0])) { \
+ case 1: VARITHSAT_CASE(int16_t, op, min, max, use_min, use_max,
element); break; \
+ case 2: VARITHSAT_CASE(int32_t, op, min, max, use_min, use_max,
element); break; \
+ case 4: VARITHSAT_CASE(int64_t, op, min, max, use_min, use_max,
element); break; \
+ } \
+ } \
+ if (sat) { \
+ env->vscr |= (1 << VSCR_SAT); \
+ } \
+ }
+#define VARITHSAT_SIGNED(suffix, element, min, max) \
+ VARITHSAT_DO(adds##suffix##s, +, min, max, 1, 1, element) \
+ VARITHSAT_DO(subs##suffix##s, -, min, max, 1, 1, element)
+#define VARITHSAT_UNSIGNED(suffix, element, max) \
+ VARITHSAT_DO(addu##suffix##s, +, 0, max, 0, 1, element) \
+ VARITHSAT_DO(subu##suffix##s, -, 0, max, 1, 0, element)
+VARITHSAT_SIGNED(b, s8, INT8_MIN, INT8_MAX)
+VARITHSAT_SIGNED(h, s16, INT16_MIN, INT16_MAX)
+VARITHSAT_SIGNED(w, s32, INT32_MIN, INT32_MAX)
+VARITHSAT_UNSIGNED(b, u8, UINT8_MAX)
+VARITHSAT_UNSIGNED(h, u16, UINT16_MAX)
+VARITHSAT_UNSIGNED(w, u32, UINT32_MAX)
+#undef VARITHSAT_CASE
+#undef VARITHSAT_DO
+#undef VARITHSAT_SIGNED
+#undef VARITHSAT_UNSIGNED
+
#define VAVG_DO(name, element, etype) \
void helper_v##name (ppc_avr_t *r, ppc_avr_t *a, ppc_avr_t *b) \
{ \
diff --git a/target-ppc/translate.c b/target-ppc/translate.c
index 5c13ed2..7a6c6e4 100644
--- a/target-ppc/translate.c
+++ b/target-ppc/translate.c
@@ -6301,6 +6301,18 @@ GEN_VXFORM(vslo, 6, 16);
GEN_VXFORM(vsro, 6, 17);
GEN_VXFORM(vaddcuw, 0, 6);
GEN_VXFORM(vsubcuw, 0, 22);
+GEN_VXFORM(vaddubs, 0, 8);
+GEN_VXFORM(vadduhs, 0, 9);
+GEN_VXFORM(vadduws, 0, 10);
+GEN_VXFORM(vaddsbs, 0, 12);
+GEN_VXFORM(vaddshs, 0, 13);
+GEN_VXFORM(vaddsws, 0, 14);
+GEN_VXFORM(vsububs, 0, 24);
+GEN_VXFORM(vsubuhs, 0, 25);
+GEN_VXFORM(vsubuws, 0, 26);
+GEN_VXFORM(vsubsbs, 0, 28);
+GEN_VXFORM(vsubshs, 0, 29);
+GEN_VXFORM(vsubsws, 0, 30);
#define GEN_VXRFORM1(opname, name, str, opc2, opc3) \
GEN_HANDLER2(name, str, 0x4, opc2, opc3, 0x00000000, PPC_ALTIVEC) \
--
1.6.0.5
- [Qemu-devel] [PATCH 04/40] Add v{add,sub}u{b,h,w}m instructions., (continued)
- [Qemu-devel] [PATCH 04/40] Add v{add,sub}u{b,h,w}m instructions., Nathan Froyd, 2008/12/30
- [Qemu-devel] [PATCH 10/40] Add vmrg{l,h}{b,h,w} instructions., Nathan Froyd, 2008/12/30
- [Qemu-devel] [PATCH 12/40] Add vsr{,a}{b,h,w} instructions., Nathan Froyd, 2008/12/30
- [Qemu-devel] [PATCH 29/40] Add GEN_VAFORM_PAIRED macro for subsequent instructions., Nathan Froyd, 2008/12/30
- [Qemu-devel] [PATCH 02/40] Add helper macros for later patches., Nathan Froyd, 2008/12/30
- [Qemu-devel] [PATCH 11/40] Add vmul{e,o}{s,u}{b,h} instructions., Nathan Froyd, 2008/12/30
- [Qemu-devel] [PATCH 16/40] Add lvs{l,r} instructions., Nathan Froyd, 2008/12/30
- [Qemu-devel] [PATCH 22/40] Add GEN_VXFORM_SIMM macro for subsequent instructions., Nathan Froyd, 2008/12/30
- [Qemu-devel] [PATCH 39/40] Add {l,st}ve{b,h,w}x instructions., Nathan Froyd, 2008/12/30
- [Qemu-devel] [PATCH 01/40] Fix TCG error in gen_avr_ptr., Nathan Froyd, 2008/12/30
- [Qemu-devel] [PATCH 18/40] Add v{add, sub}{s, u}{b, h, w}s instructions.,
Nathan Froyd <=
- [Qemu-devel] [PATCH 27/40] Add vupk{h,l}px instructions., Nathan Froyd, 2008/12/30
- [Qemu-devel] [PATCH 28/40] Add vupk{h,l}s{b,h} instructions., Nathan Froyd, 2008/12/30
- [Qemu-devel] [PATCH 40/40] Add vsumsws, vsum2sws, and vsum4{sbs, shs, ubs} instructions., Nathan Froyd, 2008/12/30
- [Qemu-devel] [PATCH 36/40] Add vmsumuh{m,s} instructions., Nathan Froyd, 2008/12/30
- [Qemu-devel] [PATCH 03/40] Add GEN_VXFORM macro for subsequent instructions., Nathan Froyd, 2008/12/30
- [Qemu-devel] [PATCH 23/40] Add vspltis{b,h,w} instructions., Nathan Froyd, 2008/12/30
- [Qemu-devel] [PATCH 13/40] Add vsl{b,h,w} instructions., Nathan Froyd, 2008/12/30
- [Qemu-devel] [PATCH 05/40] Add vavg{s,u}{b,h,w} instructions., Nathan Froyd, 2008/12/30
- [Qemu-devel] [PATCH 24/40] Add GEN_VXFORM_UIMM macro for subsequent instructions., Nathan Froyd, 2008/12/30
- [Qemu-devel] [PATCH 21/40] Add vsldoi instruction., Nathan Froyd, 2008/12/30