diff options
author | Richard Henderson <richard.henderson@linaro.org> | 2018-02-20 11:14:44 -0800 |
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committer | Richard Henderson <richard.henderson@linaro.org> | 2018-05-14 14:55:29 -0700 |
commit | 6fd204a2e934ae013d0b96458ab3d4163ccbea27 (patch) | |
tree | 18d25e206876463de949e22cfd1a5a620b0e479d | |
parent | 032de4fc38b9d1bac933c3be7f95b16c60db5cea (diff) | |
download | qemu-6fd204a2e934ae013d0b96458ab3d4163ccbea27.zip qemu-6fd204a2e934ae013d0b96458ab3d4163ccbea27.tar.gz qemu-6fd204a2e934ae013d0b96458ab3d4163ccbea27.tar.bz2 |
target/openrisc: Convert dec_float
Acked-by: Stafford Horne <shorne@gmail.com>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
-rw-r--r-- | target/openrisc/insns.decode | 21 | ||||
-rw-r--r-- | target/openrisc/translate.c | 358 |
2 files changed, 149 insertions, 230 deletions
diff --git a/target/openrisc/insns.decode b/target/openrisc/insns.decode index 4ec0e2d..dad68c8 100644 --- a/target/openrisc/insns.decode +++ b/target/openrisc/insns.decode @@ -166,3 +166,24 @@ l_sfgtsi 101111 01010 a:5 i:s16 l_sfgesi 101111 01011 a:5 i:s16 l_sfltsi 101111 01100 a:5 i:s16 l_sflesi 101111 01101 a:5 i:s16 + +#### +# FP Instructions +#### + +lf_add_s 110010 d:5 a:5 b:5 --- 00000000 +lf_sub_s 110010 d:5 a:5 b:5 --- 00000001 +lf_mul_s 110010 d:5 a:5 b:5 --- 00000010 +lf_div_s 110010 d:5 a:5 b:5 --- 00000011 +lf_rem_s 110010 d:5 a:5 b:5 --- 00000110 +lf_madd_s 110010 d:5 a:5 b:5 --- 00000111 + +lf_itof_s 110010 d:5 a:5 00000 --- 00000100 +lf_ftoi_s 110010 d:5 a:5 00000 --- 00000101 + +lf_sfeq_s 110010 ----- a:5 b:5 --- 00001000 +lf_sfne_s 110010 ----- a:5 b:5 --- 00001001 +lf_sfgt_s 110010 ----- a:5 b:5 --- 00001010 +lf_sfge_s 110010 ----- a:5 b:5 --- 00001011 +lf_sflt_s 110010 ----- a:5 b:5 --- 00001100 +lf_sfle_s 110010 ----- a:5 b:5 --- 00001101 diff --git a/target/openrisc/translate.c b/target/openrisc/translate.c index c425651..1f87ad6 100644 --- a/target/openrisc/translate.c +++ b/target/openrisc/translate.c @@ -1241,245 +1241,143 @@ static bool trans_l_rfe(DisasContext *dc, arg_l_rfe *a, uint32_t insn) return true; } -static void dec_float(DisasContext *dc, uint32_t insn) -{ - uint32_t op0; - uint32_t ra, rb, rd; - op0 = extract32(insn, 0, 8); - ra = extract32(insn, 16, 5); - rb = extract32(insn, 11, 5); - rd = extract32(insn, 21, 5); - - switch (op0) { - case 0x00: /* lf.add.s */ - LOG_DIS("lf.add.s r%d, r%d, r%d\n", rd, ra, rb); - check_r0_write(rd); - gen_helper_float_add_s(cpu_R[rd], cpu_env, cpu_R[ra], cpu_R[rb]); - gen_helper_update_fpcsr(cpu_env); - break; - - case 0x01: /* lf.sub.s */ - LOG_DIS("lf.sub.s r%d, r%d, r%d\n", rd, ra, rb); - check_r0_write(rd); - gen_helper_float_sub_s(cpu_R[rd], cpu_env, cpu_R[ra], cpu_R[rb]); - gen_helper_update_fpcsr(cpu_env); - break; - - case 0x02: /* lf.mul.s */ - LOG_DIS("lf.mul.s r%d, r%d, r%d\n", rd, ra, rb); - check_r0_write(rd); - gen_helper_float_mul_s(cpu_R[rd], cpu_env, cpu_R[ra], cpu_R[rb]); - gen_helper_update_fpcsr(cpu_env); - break; - - case 0x03: /* lf.div.s */ - LOG_DIS("lf.div.s r%d, r%d, r%d\n", rd, ra, rb); - check_r0_write(rd); - gen_helper_float_div_s(cpu_R[rd], cpu_env, cpu_R[ra], cpu_R[rb]); - gen_helper_update_fpcsr(cpu_env); - break; - - case 0x04: /* lf.itof.s */ - LOG_DIS("lf.itof r%d, r%d\n", rd, ra); - check_r0_write(rd); - gen_helper_itofs(cpu_R[rd], cpu_env, cpu_R[ra]); - gen_helper_update_fpcsr(cpu_env); - break; - - case 0x05: /* lf.ftoi.s */ - LOG_DIS("lf.ftoi r%d, r%d\n", rd, ra); - check_r0_write(rd); - gen_helper_ftois(cpu_R[rd], cpu_env, cpu_R[ra]); - gen_helper_update_fpcsr(cpu_env); - break; - - case 0x06: /* lf.rem.s */ - LOG_DIS("lf.rem.s r%d, r%d, r%d\n", rd, ra, rb); - check_r0_write(rd); - gen_helper_float_rem_s(cpu_R[rd], cpu_env, cpu_R[ra], cpu_R[rb]); - gen_helper_update_fpcsr(cpu_env); - break; - - case 0x07: /* lf.madd.s */ - LOG_DIS("lf.madd.s r%d, r%d, r%d\n", rd, ra, rb); - check_r0_write(rd); - gen_helper_float_madd_s(cpu_R[rd], cpu_env, cpu_R[rd], - cpu_R[ra], cpu_R[rb]); - gen_helper_update_fpcsr(cpu_env); - break; - - case 0x08: /* lf.sfeq.s */ - LOG_DIS("lf.sfeq.s r%d, r%d\n", ra, rb); - gen_helper_float_eq_s(cpu_sr_f, cpu_env, cpu_R[ra], cpu_R[rb]); - gen_helper_update_fpcsr(cpu_env); - break; - - case 0x09: /* lf.sfne.s */ - LOG_DIS("lf.sfne.s r%d, r%d\n", ra, rb); - gen_helper_float_eq_s(cpu_sr_f, cpu_env, cpu_R[ra], cpu_R[rb]); - tcg_gen_xori_tl(cpu_sr_f, cpu_sr_f, 1); - gen_helper_update_fpcsr(cpu_env); - break; - - case 0x0a: /* lf.sfgt.s */ - LOG_DIS("lf.sfgt.s r%d, r%d\n", ra, rb); - gen_helper_float_lt_s(cpu_sr_f, cpu_env, cpu_R[rb], cpu_R[ra]); - gen_helper_update_fpcsr(cpu_env); - break; - - case 0x0b: /* lf.sfge.s */ - LOG_DIS("lf.sfge.s r%d, r%d\n", ra, rb); - gen_helper_float_le_s(cpu_sr_f, cpu_env, cpu_R[rb], cpu_R[ra]); - gen_helper_update_fpcsr(cpu_env); - break; - - case 0x0c: /* lf.sflt.s */ - LOG_DIS("lf.sflt.s r%d, r%d\n", ra, rb); - gen_helper_float_lt_s(cpu_sr_f, cpu_env, cpu_R[ra], cpu_R[rb]); - gen_helper_update_fpcsr(cpu_env); - break; - - case 0x0d: /* lf.sfle.s */ - LOG_DIS("lf.sfle.s r%d, r%d\n", ra, rb); - gen_helper_float_le_s(cpu_sr_f, cpu_env, cpu_R[ra], cpu_R[rb]); - gen_helper_update_fpcsr(cpu_env); - break; - -#ifdef TARGET_OPENRISC64 - case 0x10: /* lf.add.d */ - LOG_DIS("lf.add.d r%d, r%d, r%d\n", rd, ra, rb); - check_of64s(dc); - check_r0_write(rd); - gen_helper_float_add_d(cpu_R[rd], cpu_env, cpu_R[ra], cpu_R[rb]); - gen_helper_update_fpcsr(cpu_env); - break; - - case 0x11: /* lf.sub.d */ - LOG_DIS("lf.sub.d r%d, r%d, r%d\n", rd, ra, rb); - check_of64s(dc); - check_r0_write(rd); - gen_helper_float_sub_d(cpu_R[rd], cpu_env, cpu_R[ra], cpu_R[rb]); - gen_helper_update_fpcsr(cpu_env); - break; - - case 0x12: /* lf.mul.d */ - LOG_DIS("lf.mul.d r%d, r%d, r%d\n", rd, ra, rb); - check_of64s(dc); - check_r0_write(rd); - gen_helper_float_mul_d(cpu_R[rd], cpu_env, cpu_R[ra], cpu_R[rb]); - gen_helper_update_fpcsr(cpu_env); - break; - - case 0x13: /* lf.div.d */ - LOG_DIS("lf.div.d r%d, r%d, r%d\n", rd, ra, rb); - check_of64s(dc); - check_r0_write(rd); - gen_helper_float_div_d(cpu_R[rd], cpu_env, cpu_R[ra], cpu_R[rb]); - gen_helper_update_fpcsr(cpu_env); - break; - - case 0x14: /* lf.itof.d */ - LOG_DIS("lf.itof r%d, r%d\n", rd, ra); - check_of64s(dc); - check_r0_write(rd); - gen_helper_itofd(cpu_R[rd], cpu_env, cpu_R[ra]); - gen_helper_update_fpcsr(cpu_env); - break; - - case 0x15: /* lf.ftoi.d */ - LOG_DIS("lf.ftoi r%d, r%d\n", rd, ra); - check_of64s(dc); - check_r0_write(rd); - gen_helper_ftoid(cpu_R[rd], cpu_env, cpu_R[ra]); - gen_helper_update_fpcsr(cpu_env); - break; - - case 0x16: /* lf.rem.d */ - LOG_DIS("lf.rem.d r%d, r%d, r%d\n", rd, ra, rb); - check_of64s(dc); - check_r0_write(rd); - gen_helper_float_rem_d(cpu_R[rd], cpu_env, cpu_R[ra], cpu_R[rb]); - gen_helper_update_fpcsr(cpu_env); - break; - - case 0x17: /* lf.madd.d */ - LOG_DIS("lf.madd.d r%d, r%d, r%d\n", rd, ra, rb); - check_of64s(dc); - check_r0_write(rd); - gen_helper_float_madd_d(cpu_R[rd], cpu_env, cpu_R[rd], - cpu_R[ra], cpu_R[rb]); - gen_helper_update_fpcsr(cpu_env); - break; - - case 0x18: /* lf.sfeq.d */ - LOG_DIS("lf.sfeq.d r%d, r%d\n", ra, rb); - check_of64s(dc); - gen_helper_float_eq_d(cpu_sr_f, cpu_env, cpu_R[ra], cpu_R[rb]); - gen_helper_update_fpcsr(cpu_env); - break; - - case 0x1a: /* lf.sfgt.d */ - LOG_DIS("lf.sfgt.d r%d, r%d\n", ra, rb); - check_of64s(dc); - gen_helper_float_lt_d(cpu_sr_f, cpu_env, cpu_R[rb], cpu_R[ra]); - gen_helper_update_fpcsr(cpu_env); - break; - - case 0x1b: /* lf.sfge.d */ - LOG_DIS("lf.sfge.d r%d, r%d\n", ra, rb); - check_of64s(dc); - gen_helper_float_le_d(cpu_sr_f, cpu_env, cpu_R[rb], cpu_R[ra]); - gen_helper_update_fpcsr(cpu_env); - break; - - case 0x19: /* lf.sfne.d */ - LOG_DIS("lf.sfne.d r%d, r%d\n", ra, rb); - check_of64s(dc); - gen_helper_float_eq_d(cpu_sr_f, cpu_env, cpu_R[ra], cpu_R[rb]); - tcg_gen_xori_tl(cpu_sr_f, cpu_sr_f, 1); - gen_helper_update_fpcsr(cpu_env); - break; - - case 0x1c: /* lf.sflt.d */ - LOG_DIS("lf.sflt.d r%d, r%d\n", ra, rb); - check_of64s(dc); - gen_helper_float_lt_d(cpu_sr_f, cpu_env, cpu_R[ra], cpu_R[rb]); - gen_helper_update_fpcsr(cpu_env); - break; - - case 0x1d: /* lf.sfle.d */ - LOG_DIS("lf.sfle.d r%d, r%d\n", ra, rb); - check_of64s(dc); - gen_helper_float_le_d(cpu_sr_f, cpu_env, cpu_R[ra], cpu_R[rb]); - gen_helper_update_fpcsr(cpu_env); - break; -#endif +static void do_fp2(DisasContext *dc, arg_da *a, + void (*fn)(TCGv, TCGv_env, TCGv)) +{ + check_r0_write(a->d); + fn(cpu_R[a->d], cpu_env, cpu_R[a->a]); + gen_helper_update_fpcsr(cpu_env); +} - default: - gen_illegal_exception(dc); - break; +static void do_fp3(DisasContext *dc, arg_dab *a, + void (*fn)(TCGv, TCGv_env, TCGv, TCGv)) +{ + check_r0_write(a->d); + fn(cpu_R[a->d], cpu_env, cpu_R[a->a], cpu_R[a->b]); + gen_helper_update_fpcsr(cpu_env); +} + +static void do_fpcmp(DisasContext *dc, arg_ab *a, + void (*fn)(TCGv, TCGv_env, TCGv, TCGv), + bool inv, bool swap) +{ + if (swap) { + fn(cpu_sr_f, cpu_env, cpu_R[a->b], cpu_R[a->a]); + } else { + fn(cpu_sr_f, cpu_env, cpu_R[a->a], cpu_R[a->b]); + } + if (inv) { + tcg_gen_xori_tl(cpu_sr_f, cpu_sr_f, 1); } + gen_helper_update_fpcsr(cpu_env); } -static void disas_openrisc_insn(DisasContext *dc, OpenRISCCPU *cpu) +static bool trans_lf_add_s(DisasContext *dc, arg_dab *a, uint32_t insn) { - uint32_t op0; - uint32_t insn = cpu_ldl_code(&cpu->env, dc->base.pc_next); + LOG_DIS("lf.add.s r%d, r%d, r%d\n", a->d, a->a, a->b); + do_fp3(dc, a, gen_helper_float_add_s); + return true; +} - /* Transition to the auto-generated decoder. */ - if (decode(dc, insn)) { - return; - } +static bool trans_lf_sub_s(DisasContext *dc, arg_dab *a, uint32_t insn) +{ + LOG_DIS("lf.sub.s r%d, r%d, r%d\n", a->d, a->a, a->b); + do_fp3(dc, a, gen_helper_float_sub_s); + return true; +} + +static bool trans_lf_mul_s(DisasContext *dc, arg_dab *a, uint32_t insn) +{ + LOG_DIS("lf.mul.s r%d, r%d, r%d\n", a->d, a->a, a->b); + do_fp3(dc, a, gen_helper_float_mul_s); + return true; +} + +static bool trans_lf_div_s(DisasContext *dc, arg_dab *a, uint32_t insn) +{ + LOG_DIS("lf.div.s r%d, r%d, r%d\n", a->d, a->a, a->b); + do_fp3(dc, a, gen_helper_float_div_s); + return true; +} + +static bool trans_lf_rem_s(DisasContext *dc, arg_dab *a, uint32_t insn) +{ + LOG_DIS("lf.rem.s r%d, r%d, r%d\n", a->d, a->a, a->b); + do_fp3(dc, a, gen_helper_float_rem_s); + return true; +} + +static bool trans_lf_itof_s(DisasContext *dc, arg_da *a, uint32_t insn) +{ + LOG_DIS("lf.itof.s r%d, r%d\n", a->d, a->a); + do_fp2(dc, a, gen_helper_itofs); + return true; +} + +static bool trans_lf_ftoi_s(DisasContext *dc, arg_da *a, uint32_t insn) +{ + LOG_DIS("lf.ftoi.s r%d, r%d\n", a->d, a->a); + do_fp2(dc, a, gen_helper_ftois); + return true; +} - op0 = extract32(insn, 26, 6); - switch (op0) { - case 0x32: - dec_float(dc, insn); - break; +static bool trans_lf_madd_s(DisasContext *dc, arg_dab *a, uint32_t insn) +{ + LOG_DIS("lf.madd.s r%d, r%d, r%d\n", a->d, a->a, a->b); + check_r0_write(a->d); + gen_helper_float_madd_s(cpu_R[a->d], cpu_env, cpu_R[a->d], + cpu_R[a->a], cpu_R[a->b]); + gen_helper_update_fpcsr(cpu_env); + return true; +} - default: +static bool trans_lf_sfeq_s(DisasContext *dc, arg_ab *a, uint32_t insn) +{ + LOG_DIS("lf.sfeq.s r%d, r%d\n", a->a, a->b); + do_fpcmp(dc, a, gen_helper_float_eq_s, false, false); + return true; +} + +static bool trans_lf_sfne_s(DisasContext *dc, arg_ab *a, uint32_t insn) +{ + LOG_DIS("lf.sfne.s r%d, r%d\n", a->a, a->b); + do_fpcmp(dc, a, gen_helper_float_eq_s, true, false); + return true; +} + +static bool trans_lf_sfgt_s(DisasContext *dc, arg_ab *a, uint32_t insn) +{ + LOG_DIS("lf.sfgt.s r%d, r%d\n", a->a, a->b); + do_fpcmp(dc, a, gen_helper_float_lt_s, false, true); + return true; +} + +static bool trans_lf_sfge_s(DisasContext *dc, arg_ab *a, uint32_t insn) +{ + LOG_DIS("lf.sfge.s r%d, r%d\n", a->a, a->b); + do_fpcmp(dc, a, gen_helper_float_le_s, false, true); + return true; +} + +static bool trans_lf_sflt_s(DisasContext *dc, arg_ab *a, uint32_t insn) +{ + LOG_DIS("lf.sflt.s r%d, r%d\n", a->a, a->b); + do_fpcmp(dc, a, gen_helper_float_lt_s, false, false); + return true; +} + +static bool trans_lf_sfle_s(DisasContext *dc, arg_ab *a, uint32_t insn) +{ + LOG_DIS("lf.sfle.s r%d, r%d\n", a->a, a->b); + do_fpcmp(dc, a, gen_helper_float_le_s, false, false); + return true; +} + +static void disas_openrisc_insn(DisasContext *dc, OpenRISCCPU *cpu) +{ + uint32_t insn = cpu_ldl_code(&cpu->env, dc->base.pc_next); + if (!decode(dc, insn)) { gen_illegal_exception(dc); - break; } } |