diff options
| author | Michael Pavone <pavone@retrodev.com> | 2014-03-07 19:45:05 -0800 |
|---|---|---|
| committer | Michael Pavone <pavone@retrodev.com> | 2014-03-07 19:45:05 -0800 |
| commit | 2db5ced06cd76f237a9353a04353321f8ae5d800 (patch) | |
| tree | 64f64c389e1299f1777772516cdc8edb93f05d99 /m68k_core_x86.c | |
| parent | b942d0f819a44a26b7c1235908e54d94bb723a47 (diff) | |
Minor refactor to translate_m68k_move_ccr_sr and translate_m68k_stop to reduce code duplication
Diffstat (limited to 'm68k_core_x86.c')
| -rw-r--r-- | m68k_core_x86.c | 24 |
1 files changed, 12 insertions, 12 deletions
diff --git a/m68k_core_x86.c b/m68k_core_x86.c index 7ffe1b8..4bdc078 100644 --- a/m68k_core_x86.c +++ b/m68k_core_x86.c @@ -2052,17 +2052,22 @@ void translate_m68k_eori_ccr_sr(m68k_options *opts, m68kinst *inst) } } +void set_all_flags(m68k_options *opts, uint8_t flags) +{ + uint32_t flag_mask = flags & 0x10 ? X1 : X0; + flag_mask |= flags & 0x8 ? N1 : N0; + flag_mask |= flags & 0x4 ? Z1 : Z0; + flag_mask |= flags & 0x2 ? V1 : V0; + flag_mask |= flags & 0x1 ? C1 : C0; + update_flags(opts, flag_mask); +} + void translate_m68k_move_ccr_sr(m68k_options *opts, m68kinst *inst, host_ea *src_op, host_ea *dst_op) { code_info *code = &opts->gen.code; //TODO: Privilege check for MOVE to SR if (src_op->mode == MODE_IMMED) { - uint32_t flag_mask = src_op->disp & 0x10 ? X1 : X0; - flag_mask |= src_op->disp & 0x8 ? N1 : N0; - flag_mask |= src_op->disp & 0x4 ? Z1 : Z0; - flag_mask |= src_op->disp & 0x2 ? V1 : V0; - flag_mask |= src_op->disp & 0x1 ? C1 : C0; - update_flags(opts, flag_mask); + set_all_flags(opts, src_op->disp); if (inst->op == M68K_MOVE_SR) { mov_irdisp(code, (src_op->disp >> 8), opts->gen.context_reg, offsetof(m68k_context, status), SZ_B); if (!((inst->src.params.immed >> 8) & (1 << BIT_SUPERVISOR))) { @@ -2094,12 +2099,7 @@ void translate_m68k_stop(m68k_options *opts, m68kinst *inst) //Motorola's accounting make sense here code_info *code = &opts->gen.code; cycles(&opts->gen, BUS*2); - uint32_t flag_mask = inst->src.params.immed & 0x10 ? X1 : X0; - flag_mask |= inst->src.params.immed & 0x8 ? N1 : N0; - flag_mask |= inst->src.params.immed & 0x4 ? Z1 : Z0; - flag_mask |= inst->src.params.immed & 0x2 ? V1 : V0; - flag_mask |= inst->src.params.immed & 0x1 ? C1 : C0; - update_flags(opts, flag_mask); + set_all_flags(opts, inst->src.params.immed); mov_irdisp(code, (inst->src.params.immed >> 8), opts->gen.context_reg, offsetof(m68k_context, status), SZ_B); if (!((inst->src.params.immed >> 8) & (1 << BIT_SUPERVISOR))) { //leave supervisor mode |