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authorPeter Maydell <peter.maydell@linaro.org>2014-01-31 14:47:36 +0000
committerPeter Maydell <peter.maydell@linaro.org>2014-01-31 14:47:36 +0000
commit0ae39320bd0783f1a1d4ac63ec9ba48ca41764dc (patch)
treedb8440279bc9ae91a448188ebe7fe01a7263beb8
parenta08582f41e94b5a7ee3e53ad1e719d24431aa675 (diff)
downloadqemu-arm-0ae39320bd0783f1a1d4ac63ec9ba48ca41764dc.tar.gz
target-arm: A64: Add SIMD three-different ABDL instructions
Implement the absolute-difference instructions in the SIMD three-different group: SABAL, SABAL2, UABAL, UABAL2, SABDL, SABDL2, UABDL, UABDL2. Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Reviewed-by: Richard Henderson <rth@twiddle.net>
-rw-r--r--target-arm/translate-a64.c35
1 files changed, 33 insertions, 2 deletions
diff --git a/target-arm/translate-a64.c b/target-arm/translate-a64.c
index e8479a52db..e098efd315 100644
--- a/target-arm/translate-a64.c
+++ b/target-arm/translate-a64.c
@@ -5602,6 +5602,21 @@ 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 */
@@ -5640,6 +5655,22 @@ 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 */
@@ -5739,10 +5770,10 @@ 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: