Mercurial > repos > blastem
changeset 586:aa35ccb90aa9
Minor refactor to translate_m68k_move_ccr_sr and translate_m68k_stop to reduce code duplication
| author | Michael Pavone <pavone@retrodev.com> |
|---|---|
| date | Fri, 07 Mar 2014 19:45:05 -0800 |
| parents | 82aadd5d103a |
| children | 55c5b0f913ce |
| files | m68k_core_x86.c |
| diffstat | 1 files changed, 12 insertions(+), 12 deletions(-) [+] |
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--- a/m68k_core_x86.c Fri Mar 07 19:39:51 2014 -0800 +++ b/m68k_core_x86.c Fri Mar 07 19:45:05 2014 -0800 @@ -2052,17 +2052,22 @@ } } +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 @@ //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