[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
[Qemu-devel] [PATCH 05/21] target-arm: A64: Add logic ops from SIMD 3 sa
From: |
Peter Maydell |
Subject: |
[Qemu-devel] [PATCH 05/21] target-arm: A64: Add logic ops from SIMD 3 same group |
Date: |
Sun, 26 Jan 2014 19:24:56 +0000 |
Add support for the logical operations (ORR, AND, BIC, ORN, EOR, BSL,
BIT and BIF) from the SIMD 3 register same group (C3.6.16).
Signed-off-by: Alex Bennée <address@hidden>
Signed-off-by: Peter Maydell <address@hidden>
Reviewed-by: Richard Henderson <address@hidden>
---
target-arm/translate-a64.c | 73 +++++++++++++++++++++++++++++++++++++++++++++-
1 file changed, 72 insertions(+), 1 deletion(-)
diff --git a/target-arm/translate-a64.c b/target-arm/translate-a64.c
index 2079c96..4767cbf 100644
--- a/target-arm/translate-a64.c
+++ b/target-arm/translate-a64.c
@@ -5951,7 +5951,78 @@ static void disas_simd_three_reg_diff(DisasContext *s,
uint32_t insn)
/* Logic op (opcode == 3) subgroup of C3.6.16. */
static void disas_simd_3same_logic(DisasContext *s, uint32_t insn)
{
- unsupported_encoding(s, insn);
+ int rd = extract32(insn, 0, 5);
+ int rn = extract32(insn, 5, 5);
+ int rm = extract32(insn, 16, 5);
+ int size = extract32(insn, 22, 2);
+ bool is_u = extract32(insn, 29, 1);
+ bool is_q = extract32(insn, 30, 1);
+ TCGv_i64 tcg_op1 = tcg_temp_new_i64();
+ TCGv_i64 tcg_op2 = tcg_temp_new_i64();
+ TCGv_i64 tcg_res[2];
+ int pass;
+
+ tcg_res[0] = tcg_temp_new_i64();
+ tcg_res[1] = tcg_temp_new_i64();
+
+ for (pass = 0; pass < (is_q ? 2 : 1); pass++) {
+ read_vec_element(s, tcg_op1, rn, pass, MO_64);
+ read_vec_element(s, tcg_op2, rm, pass, MO_64);
+
+ if (!is_u) {
+ switch (size) {
+ case 0: /* AND */
+ tcg_gen_and_i64(tcg_res[pass], tcg_op1, tcg_op2);
+ break;
+ case 1: /* BIC */
+ tcg_gen_andc_i64(tcg_res[pass], tcg_op1, tcg_op2);
+ break;
+ case 2: /* ORR */
+ tcg_gen_or_i64(tcg_res[pass], tcg_op1, tcg_op2);
+ break;
+ case 3: /* ORN */
+ tcg_gen_orc_i64(tcg_res[pass], tcg_op1, tcg_op2);
+ break;
+ }
+ } else {
+ if (size != 0) {
+ /* B* ops need res loaded to operate on */
+ read_vec_element(s, tcg_res[pass], rd, pass, MO_64);
+ }
+
+ switch (size) {
+ case 0: /* EOR */
+ tcg_gen_xor_i64(tcg_res[pass], tcg_op1, tcg_op2);
+ break;
+ case 1: /* BSL bitwise select */
+ tcg_gen_xor_i64(tcg_op1, tcg_op1, tcg_op2);
+ tcg_gen_and_i64(tcg_op1, tcg_op1, tcg_res[pass]);
+ tcg_gen_xor_i64(tcg_res[pass], tcg_op2, tcg_op1);
+ break;
+ case 2: /* BIT, bitwise insert if true */
+ tcg_gen_xor_i64(tcg_op1, tcg_op1, tcg_res[pass]);
+ tcg_gen_and_i64(tcg_op1, tcg_op1, tcg_op2);
+ tcg_gen_xor_i64(tcg_res[pass], tcg_res[pass], tcg_op1);
+ break;
+ case 3: /* BIF, bitwise insert if false */
+ tcg_gen_xor_i64(tcg_op1, tcg_op1, tcg_res[pass]);
+ tcg_gen_andc_i64(tcg_op1, tcg_op1, tcg_op2);
+ tcg_gen_xor_i64(tcg_res[pass], tcg_res[pass], tcg_op1);
+ break;
+ }
+ }
+ }
+
+ write_vec_element(s, tcg_res[0], rd, 0, MO_64);
+ if (!is_q) {
+ tcg_gen_movi_i64(tcg_res[1], 0);
+ }
+ write_vec_element(s, tcg_res[1], rd, 1, MO_64);
+
+ tcg_temp_free_i64(tcg_op1);
+ tcg_temp_free_i64(tcg_op2);
+ tcg_temp_free_i64(tcg_res[0]);
+ tcg_temp_free_i64(tcg_res[1]);
}
/* Pairwise op subgroup of C3.6.16. */
--
1.8.5
- Re: [Qemu-devel] [PATCH 10/21] target-arm: A64: Implement remaining non-pairwise int SIMD 3-reg-same insns, (continued)
- [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, 2014/01/26
- [Qemu-devel] [PATCH 05/21] target-arm: A64: Add logic ops from SIMD 3 same group,
Peter Maydell <=
- [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
- [Qemu-devel] [PATCH 08/21] target-arm: A64: Add SIMD shift by immediate, Peter Maydell, 2014/01/26
- [Qemu-devel] [PATCH 12/21] tcg: Add TCGV_UNUSED_PTR, TCGV_IS_UNUSED_PTR, TCGV_EQUAL_PTR, Peter Maydell, 2014/01/26