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[Qemu-devel] [PATCH 02/21] target-arm: A64: Add SIMD three-different ABD
From: |
Peter Maydell |
Subject: |
[Qemu-devel] [PATCH 02/21] target-arm: A64: Add SIMD three-different ABDL instructions |
Date: |
Sun, 26 Jan 2014 19:24:53 +0000 |
Implement the absolute-difference instructions in the SIMD
three-different group: SABAL, SABAL2, UABAL, UABAL2, SABDL,
SABDL2, UABDL, UABDL2.
Signed-off-by: Peter Maydell <address@hidden>
Reviewed-by: Richard Henderson <address@hidden>
---
target-arm/translate-a64.c | 35 +++++++++++++++++++++++++++++++++--
1 file changed, 33 insertions(+), 2 deletions(-)
diff --git a/target-arm/translate-a64.c b/target-arm/translate-a64.c
index 924a539..145125e 100644
--- a/target-arm/translate-a64.c
+++ b/target-arm/translate-a64.c
@@ -5630,6 +5630,21 @@ static void handle_3rd_widening(DisasContext *s, int
is_q, int is_u, int size,
}
switch (opcode) {
+ case 5: /* SABAL, SABAL2, UABAL, UABAL2 */
+ case 7: /* SABDL, SABDL2, UABDL, UABDL2 */
+ {
+ TCGv_i64 tcg_tmp1 = tcg_temp_new_i64();
+ TCGv_i64 tcg_tmp2 = tcg_temp_new_i64();
+
+ tcg_gen_sub_i64(tcg_tmp1, tcg_op1, tcg_op2);
+ tcg_gen_sub_i64(tcg_tmp2, tcg_op2, tcg_op1);
+ tcg_gen_movcond_i64(is_u ? TCG_COND_GEU : TCG_COND_GE,
+ tcg_passres,
+ tcg_op1, tcg_op2, tcg_tmp1, tcg_tmp2);
+ tcg_temp_free_i64(tcg_tmp1);
+ tcg_temp_free_i64(tcg_tmp2);
+ break;
+ }
case 8: /* SMLAL, SMLAL2, UMLAL, UMLAL2 */
case 10: /* SMLSL, SMLSL2, UMLSL, UMLSL2 */
case 12: /* UMULL, UMULL2, SMULL, SMULL2 */
@@ -5668,6 +5683,22 @@ static void handle_3rd_widening(DisasContext *s, int
is_q, int is_u, int size,
}
switch (opcode) {
+ case 5: /* SABAL, SABAL2, UABAL, UABAL2 */
+ case 7: /* SABDL, SABDL2, UABDL, UABDL2 */
+ if (size == 0) {
+ if (is_u) {
+ gen_helper_neon_abdl_u16(tcg_passres, tcg_op1,
tcg_op2);
+ } else {
+ gen_helper_neon_abdl_s16(tcg_passres, tcg_op1,
tcg_op2);
+ }
+ } else {
+ if (is_u) {
+ gen_helper_neon_abdl_u32(tcg_passres, tcg_op1,
tcg_op2);
+ } else {
+ gen_helper_neon_abdl_s32(tcg_passres, tcg_op1,
tcg_op2);
+ }
+ }
+ break;
case 8: /* SMLAL, SMLAL2, UMLAL, UMLAL2 */
case 10: /* SMLSL, SMLSL2, UMLSL, UMLSL2 */
case 12: /* UMULL, UMULL2, SMULL, SMULL2 */
@@ -5767,10 +5798,10 @@ static void disas_simd_three_reg_diff(DisasContext *s,
uint32_t insn)
/* fall through */
case 0:
case 2:
- case 5:
- case 7:
unsupported_encoding(s, insn);
break;
+ case 5:
+ case 7:
case 8:
case 10:
case 12:
--
1.8.5
- Re: [Qemu-devel] [PATCH 18/21] target-arm: A64: Implement 2-reg-misc CNT, NOT and RBIT, (continued)
- [Qemu-devel] [PATCH 10/21] target-arm: A64: Implement remaining non-pairwise int SIMD 3-reg-same insns, Peter Maydell, 2014/01/26
- [Qemu-devel] [PATCH 01/21] target-arm: A64: Add SIMD three-different multiply accumulate insns, Peter Maydell, 2014/01/26
- [Qemu-devel] [PATCH 21/21] target-arm: A64: Add FNEG and FABS to the SIMD 2-reg-misc group, Peter Maydell, 2014/01/26
- [Qemu-devel] [PATCH 11/21] target-arm: A64: Implement pairwise integer ops from 3-reg-same SIMD, Peter Maydell, 2014/01/26
- [Qemu-devel] [PATCH 02/21] target-arm: A64: Add SIMD three-different ABDL instructions,
Peter Maydell <=
- [Qemu-devel] [PATCH 05/21] target-arm: A64: Add logic ops from SIMD 3 same group, Peter Maydell, 2014/01/26
- [Qemu-devel] [PATCH 14/21] target-arm: A64: Implement remaining integer scalar-3-same insns, Peter Maydell, 2014/01/26
- [Qemu-devel] [PATCH 03/21] target-arm: A64: Add SIMD scalar 3 same add, sub and compare ops, Peter Maydell, 2014/01/26
- [Qemu-devel] [PATCH 04/21] target-arm: A64: Add top level decode for SIMD 3-same group, Peter Maydell, 2014/01/26
- [Qemu-devel] [PATCH 07/21] target-arm: A64: Add simple SIMD 3-same floating point ops, Peter Maydell, 2014/01/26
- [Qemu-devel] [PATCH 09/21] target-arm: A64: Implement SIMD 3-reg-same shift and saturate insns, Peter Maydell, 2014/01/26
- [Qemu-devel] [PATCH 06/21] target-arm: A64: Add integer ops from SIMD 3-same group, Peter Maydell, 2014/01/26