diff options
| author | John van Groningen | 2011-12-01 16:21:19 +0000 |
|---|---|---|
| committer | John van Groningen | 2011-12-01 16:21:19 +0000 |
| commit | 3321be8fed86e65f3c365e78083d375b42fffee6 (patch) | |
| tree | 3e7c996542b2b21f6c85abb9bd72844b53f5ded9 /cgias.c | |
| parent | implement mulUUL for 32 bit thread safe code (diff) | |
implement divLU for 32 bit thread safe code
Diffstat (limited to 'cgias.c')
| -rw-r--r-- | cgias.c | 103 |
1 files changed, 92 insertions, 11 deletions
@@ -3379,15 +3379,103 @@ static void as_xchg_eax_r (int reg_1) store_c (0x90+reg_num (reg_1)); /* xchg reg_1,D0 */ } -#ifndef THREAD32 +static void as_xchg (int r1,int r2) +{ + if (r1==REGISTER_D0) + store_c (0x90+reg_num (r2)); /* xchg r,D0 */ + else if (r2==REGISTER_D0) + store_c (0x90+reg_num (r1)); /* xchg r,D0 */ + else + as_r_r (0207,r1,r2); +} + static void as_divdu_instruction (struct instruction *instruction) { int reg_1,reg_2,reg_3; - + reg_1=instruction->instruction_parameters[0].parameter_data.reg.r; reg_2=instruction->instruction_parameters[1].parameter_data.reg.r; reg_3=instruction->instruction_parameters[2].parameter_data.reg.r; + /* reg_2:reg_3/reg_1, quotient in reg3, remainder in reg_2 */ + +#ifdef THREAD32 + if (reg_3==REGISTER_D0){ + if (reg_2==REGISTER_A1) + as_r (0367,0060,reg_1); /* div */ + else { + as_xchg (REGISTER_A1,reg_2); + if (reg_1==reg_2) + as_r (0367,0060,REGISTER_A1); /* div */ + else if (reg_1==REGISTER_A1) + as_r (0367,0060,reg_2); /* div */ + else + as_r (0367,0060,reg_1); /* div */ + as_xchg (REGISTER_A1,reg_2); + } + } else if (reg_3==REGISTER_A1){ + as_xchg (REGISTER_D0,REGISTER_A1); + if (reg_2==REGISTER_D0){ + if (reg_1==REGISTER_D0) + as_r (0367,0060,REGISTER_A1); /* div */ + else if (reg_1==REGISTER_A1) + as_r (0367,0060,REGISTER_D0); /* div */ + else + as_r (0367,0060,reg_1); /* div */ + } else { + as_xchg (REGISTER_A1,reg_2); + if (reg_1==reg_2) + as_r (0367,0060,REGISTER_A1); /* div */ + else if (reg_1==REGISTER_D0) + as_r (0367,0060,reg_2); /* div */ + else if (reg_1==REGISTER_A1) + as_r (0367,0060,REGISTER_D0); /* div */ + else + as_r (0367,0060,reg_1); /* div */ + as_xchg (REGISTER_A1,reg_2); + } + as_xchg (REGISTER_D0,REGISTER_A1); + } else { + if (reg_2==REGISTER_A1){ + as_xchg (REGISTER_D0,reg_3); + if (reg_1==reg_3) + as_r (0367,0060,REGISTER_D0); /* div */ + else if (reg_1==REGISTER_D0) + as_r (0367,0060,reg_3); /* div */ + else + as_r (0367,0060,reg_1); /* div */ + as_xchg (REGISTER_D0,reg_3); + } else if (reg_2==REGISTER_D0){ + as_xchg (REGISTER_A1,REGISTER_D0); + as_xchg (REGISTER_D0,reg_3); + if (reg_1==reg_3) + as_r (0367,0060,REGISTER_D0); /* div */ + else if (reg_1==REGISTER_D0) + as_r (0367,0060,REGISTER_A1); /* div */ + else if (reg_1==REGISTER_A1) + as_r (0367,0060,reg_3); /* div */ + else + as_r (0367,0060,reg_1); /* div */ + as_xchg (REGISTER_D0,reg_3); + as_xchg (REGISTER_A1,REGISTER_D0); + } else { + as_xchg (REGISTER_D0,reg_3); + as_xchg (REGISTER_A1,reg_2); + if (reg_1==REGISTER_D0) + as_r (0367,0060,reg_3); /* div */ + else if (reg_1==REGISTER_A1) + as_r (0367,0060,reg_2); /* div */ + else if (reg_1==reg_3) + as_r (0367,0060,REGISTER_D0); /* div */ + else if (reg_1==reg_2) + as_r (0367,0060,REGISTER_A1); /* div */ + else + as_r (0367,0060,reg_1); /* div */ + as_xchg (REGISTER_A1,reg_2); + as_xchg (REGISTER_D0,reg_3); + } + } +#else if (reg_1==REGISTER_D0){ if (reg_3==REGISTER_D0){ if (reg_2==REGISTER_A1) @@ -3495,8 +3583,8 @@ static void as_divdu_instruction (struct instruction *instruction) as_xchg_eax_r (reg_3); /* xchg reg_3,D0 */ } } -} #endif +} static void as_mul_shift_magic (int s) { @@ -3970,12 +4058,7 @@ static void as_exg_instruction (struct instruction *instruction) r1=instruction->instruction_parameters[0].parameter_data.reg.r; r2=instruction->instruction_parameters[1].parameter_data.reg.r; - if (r1==REGISTER_D0) - store_c (0x90+reg_num (r2)); /* xchg r,D0 */ - else if (r2==REGISTER_D0) - store_c (0x90+reg_num (r1)); /* xchg r,D0 */ - else - as_r_r (0207,r1,r2); + as_xchg (r1,r2); } static void as_neg_instruction (struct instruction *instruction) @@ -5596,11 +5679,9 @@ static void as_instructions (struct instruction *instruction) case IMULUD: as_mulud_instruction (instruction); break; -#ifndef THREAD32 case IDIVDU: as_divdu_instruction (instruction); break; -#endif case IFLOORDIV: as_floordiv_mod_instruction (instruction,0); break; |