diff options
Diffstat (limited to 'target-sparc')
| -rw-r--r-- | target-sparc/helper.h | 3 | ||||
| -rw-r--r-- | target-sparc/translate.c | 30 | ||||
| -rw-r--r-- | target-sparc/vis_helper.c | 64 |
3 files changed, 96 insertions, 1 deletions
diff --git a/target-sparc/helper.h b/target-sparc/helper.h index 22f9dce9ac..07c39a9eaf 100644 --- a/target-sparc/helper.h +++ b/target-sparc/helper.h @@ -138,6 +138,9 @@ DEF_HELPER_FLAGS_2(fmuld8sux16, TCG_CALL_CONST | TCG_CALL_PURE, i64, i64, i64) DEF_HELPER_FLAGS_2(fmuld8ulx16, TCG_CALL_CONST | TCG_CALL_PURE, i64, i64, i64) DEF_HELPER_FLAGS_2(fexpand, TCG_CALL_CONST | TCG_CALL_PURE, i64, i64, i64) DEF_HELPER_FLAGS_3(pdist, TCG_CALL_CONST | TCG_CALL_PURE, i64, i64, i64, i64) +DEF_HELPER_FLAGS_2(fpack16, TCG_CALL_CONST | TCG_CALL_PURE, i32, i64, i64) +DEF_HELPER_FLAGS_3(fpack32, TCG_CALL_CONST | TCG_CALL_PURE, i64, i64, i64, i64) +DEF_HELPER_FLAGS_2(fpackfix, TCG_CALL_CONST | TCG_CALL_PURE, i32, i64, i64) #define VIS_HELPER(name) \ DEF_HELPER_FLAGS_2(f ## name ## 16, TCG_CALL_CONST | TCG_CALL_PURE, \ i64, i64, i64) \ diff --git a/target-sparc/translate.c b/target-sparc/translate.c index 2646aaf1db..102c83ad21 100644 --- a/target-sparc/translate.c +++ b/target-sparc/translate.c @@ -1739,6 +1739,20 @@ static inline void gen_ne_fop_DDD(DisasContext *dc, int rd, int rs1, int rs2, gen_store_fpr_D(dc, rd, dst); } +static inline void gen_gsr_fop_DDD(DisasContext *dc, int rd, int rs1, int rs2, + void (*gen)(TCGv_i64, TCGv_i64, TCGv_i64, TCGv_i64)) +{ + TCGv_i64 dst, src1, src2; + + src1 = gen_load_fpr_D(dc, rs1); + src2 = gen_load_fpr_D(dc, rs2); + dst = gen_dest_fpr_D(); + + gen(dst, cpu_gsr, src1, src2); + + gen_store_fpr_D(dc, rd, dst); +} + static inline void gen_ne_fop_DDDD(DisasContext *dc, int rd, int rs1, int rs2, void (*gen)(TCGv_i64, TCGv_i64, TCGv_i64, TCGv_i64)) { @@ -4072,9 +4086,23 @@ static void disas_sparc_insn(DisasContext * dc) gen_ne_fop_DDD(dc, rd, rs1, rs2, gen_helper_fmuld8ulx16); break; case 0x03a: /* VIS I fpack32 */ + CHECK_FPU_FEATURE(dc, VIS1); + gen_gsr_fop_DDD(dc, rd, rs1, rs2, gen_helper_fpack32); + break; case 0x03b: /* VIS I fpack16 */ + CHECK_FPU_FEATURE(dc, VIS1); + cpu_src1_64 = gen_load_fpr_D(dc, rs2); + cpu_dst_32 = gen_dest_fpr_F(); + gen_helper_fpack16(cpu_dst_32, cpu_gsr, cpu_src1_64); + gen_store_fpr_F(dc, rd, cpu_dst_32); + break; case 0x03d: /* VIS I fpackfix */ - goto illegal_insn; + CHECK_FPU_FEATURE(dc, VIS1); + cpu_src1_64 = gen_load_fpr_D(dc, rs2); + cpu_dst_32 = gen_dest_fpr_F(); + gen_helper_fpackfix(cpu_dst_32, cpu_gsr, cpu_src1_64); + gen_store_fpr_F(dc, rd, cpu_dst_32); + break; case 0x03e: /* VIS I pdist */ CHECK_FPU_FEATURE(dc, VIS1); gen_ne_fop_DDDD(dc, rd, rs1, rs2, gen_helper_pdist); diff --git a/target-sparc/vis_helper.c b/target-sparc/vis_helper.c index cd5d4a7ff3..59ca8d785f 100644 --- a/target-sparc/vis_helper.c +++ b/target-sparc/vis_helper.c @@ -417,3 +417,67 @@ uint64_t helper_pdist(uint64_t sum, uint64_t src1, uint64_t src2) return sum; } + +uint32_t helper_fpack16(uint64_t gsr, uint64_t rs2) +{ + int scale = (gsr >> 3) & 0xf; + uint32_t ret = 0; + int byte; + + for (byte = 0; byte < 4; byte++) { + uint32_t val; + int16_t src = rs2 >> (byte * 16); + int32_t scaled = src << scale; + int32_t from_fixed = scaled >> 7; + + val = (from_fixed < 0 ? 0 : + from_fixed > 255 ? 255 : from_fixed); + + ret |= val << (8 * byte); + } + + return ret; +} + +uint64_t helper_fpack32(uint64_t gsr, uint64_t rs1, uint64_t rs2) +{ + int scale = (gsr >> 3) & 0x1f; + uint64_t ret = 0; + int word; + + ret = (rs1 << 8) & ~(0x000000ff000000ffULL); + for (word = 0; word < 2; word++) { + uint64_t val; + int32_t src = rs2 >> (word * 32); + int64_t scaled = (int64_t)src << scale; + int64_t from_fixed = scaled >> 23; + + val = (from_fixed < 0 ? 0 : + (from_fixed > 255) ? 255 : from_fixed); + + ret |= val << (32 * word); + } + + return ret; +} + +uint32_t helper_fpackfix(uint64_t gsr, uint64_t rs2) +{ + int scale = (gsr >> 3) & 0x1f; + uint32_t ret = 0; + int word; + + for (word = 0; word < 2; word++) { + uint32_t val; + int32_t src = rs2 >> (word * 32); + int64_t scaled = src << scale; + int64_t from_fixed = scaled >> 16; + + val = (from_fixed < -32768 ? -32768 : + from_fixed > 32767 ? 32767 : from_fixed); + + ret |= (val & 0xffff) << (word * 16); + } + + return ret; +} |