diff options
Diffstat (limited to 'target/openrisc')
| -rw-r--r-- | target/openrisc/insns.decode | 5 | ||||
| -rw-r--r-- | target/openrisc/translate.c | 55 |
2 files changed, 27 insertions, 33 deletions
diff --git a/target/openrisc/insns.decode b/target/openrisc/insns.decode index 20f035f488..7240c6fb77 100644 --- a/target/openrisc/insns.decode +++ b/target/openrisc/insns.decode @@ -125,3 +125,8 @@ l_divu 111000 d:5 a:5 b:5 - 11 ---- 1010 l_muld 111000 ----- a:5 b:5 - 11 ---- 0111 l_muldu 111000 ----- a:5 b:5 - 11 ---- 1100 + +l_mac 110001 ----- a:5 b:5 ------- 0001 +l_macu 110001 ----- a:5 b:5 ------- 0011 +l_msb 110001 ----- a:5 b:5 ------- 0010 +l_msbu 110001 ----- a:5 b:5 ------- 0100 diff --git a/target/openrisc/translate.c b/target/openrisc/translate.c index 755f43535e..48e26c4349 100644 --- a/target/openrisc/translate.c +++ b/target/openrisc/translate.c @@ -970,39 +970,32 @@ static bool trans_l_mtspr(DisasContext *dc, arg_l_mtspr *a, uint32_t insn) return true; } -static void dec_mac(DisasContext *dc, uint32_t insn) +static bool trans_l_mac(DisasContext *dc, arg_ab *a, uint32_t insn) { - uint32_t op0; - uint32_t ra, rb; - op0 = extract32(insn, 0, 4); - ra = extract32(insn, 16, 5); - rb = extract32(insn, 11, 5); - - switch (op0) { - case 0x0001: /* l.mac */ - LOG_DIS("l.mac r%d, r%d\n", ra, rb); - gen_mac(dc, cpu_R[ra], cpu_R[rb]); - break; - - case 0x0002: /* l.msb */ - LOG_DIS("l.msb r%d, r%d\n", ra, rb); - gen_msb(dc, cpu_R[ra], cpu_R[rb]); - break; + LOG_DIS("l.mac r%d, r%d\n", a->a, a->b); + gen_mac(dc, cpu_R[a->a], cpu_R[a->b]); + return true; +} - case 0x0003: /* l.macu */ - LOG_DIS("l.macu r%d, r%d\n", ra, rb); - gen_macu(dc, cpu_R[ra], cpu_R[rb]); - break; +static bool trans_l_msb(DisasContext *dc, arg_ab *a, uint32_t insn) +{ + LOG_DIS("l.msb r%d, r%d\n", a->a, a->b); + gen_msb(dc, cpu_R[a->a], cpu_R[a->b]); + return true; +} - case 0x0004: /* l.msbu */ - LOG_DIS("l.msbu r%d, r%d\n", ra, rb); - gen_msbu(dc, cpu_R[ra], cpu_R[rb]); - break; +static bool trans_l_macu(DisasContext *dc, arg_ab *a, uint32_t insn) +{ + LOG_DIS("l.mac r%d, r%d\n", a->a, a->b); + gen_macu(dc, cpu_R[a->a], cpu_R[a->b]); + return true; +} - default: - gen_illegal_exception(dc); - break; - } +static bool trans_l_msbu(DisasContext *dc, arg_ab *a, uint32_t insn) +{ + LOG_DIS("l.msb r%d, r%d\n", a->a, a->b); + gen_msbu(dc, cpu_R[a->a], cpu_R[a->b]); + return true; } static void dec_logic(DisasContext *dc, uint32_t insn) @@ -1505,10 +1498,6 @@ static void disas_openrisc_insn(DisasContext *dc, OpenRISCCPU *cpu) dec_compi(dc, insn); break; - case 0x31: - dec_mac(dc, insn); - break; - case 0x32: dec_float(dc, insn); break; |