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| author | Peter Maydell <peter.maydell@linaro.org> | 2014-01-31 14:47:36 +0000 |
|---|---|---|
| committer | Peter Maydell <peter.maydell@linaro.org> | 2014-01-31 14:47:36 +0000 |
| commit | 0ae39320bd0783f1a1d4ac63ec9ba48ca41764dc (patch) | |
| tree | db8440279bc9ae91a448188ebe7fe01a7263beb8 /target-arm | |
| parent | a08582f41e94b5a7ee3e53ad1e719d24431aa675 (diff) | |
| download | qemu-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>
Diffstat (limited to 'target-arm')
| -rw-r--r-- | target-arm/translate-a64.c | 35 |
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: |