diff options
| author | Michael Pavone <pavone@retrodev.com> | 2015-10-29 19:06:06 -0700 |
|---|---|---|
| committer | Michael Pavone <pavone@retrodev.com> | 2015-10-29 19:06:06 -0700 |
| commit | a1f73f4ae60d0d2cff6e8619417c15c97460239b (patch) | |
| tree | 1f2c087036ad375e6cf75b735936c17ddd4df97d | |
| parent | 3a8f89cb47c0715d091dde6e317cebf9a4796778 (diff) | |
Implement TRAPV
| -rw-r--r-- | m68k_core.c | 4 | ||||
| -rw-r--r-- | m68k_core_x86.c | 13 | ||||
| -rw-r--r-- | m68k_internal.h | 1 |
3 files changed, 15 insertions, 3 deletions
diff --git a/m68k_core.c b/m68k_core.c index 490fcec..02463c9 100644 --- a/m68k_core.c +++ b/m68k_core.c @@ -790,6 +790,7 @@ impl_info m68k_impls[] = { //traps OP_IMPL(M68K_CHK, translate_m68k_chk), RAW_IMPL(M68K_TRAP, translate_m68k_trap), + RAW_IMPL(M68K_TRAPV, translate_m68k_trapv), RAW_IMPL(M68K_ILLEGAL, translate_m68k_illegal), RAW_IMPL(M68K_INVALID, translate_m68k_invalid), @@ -797,9 +798,6 @@ impl_info m68k_impls[] = { RAW_IMPL(M68K_NOP, translate_m68k_nop), RAW_IMPL(M68K_RESET, translate_m68k_reset), RAW_IMPL(M68K_TAS, translate_m68k_tas), - - //currently unimplemented - //M68K_TRAPV }; void translate_m68k(m68k_options * opts, m68kinst * inst) diff --git a/m68k_core_x86.c b/m68k_core_x86.c index f23c51d..fff5855 100644 --- a/m68k_core_x86.c +++ b/m68k_core_x86.c @@ -2116,6 +2116,19 @@ void translate_m68k_stop(m68k_options *opts, m68kinst *inst) jcc(code, CC_C, loop_top); } +void translate_m68k_trapv(m68k_options *opts, m68kinst *inst) +{ + code_info *code = &opts->gen.code; + cycles(&opts->gen, BUS); + flag_to_carry(opts, FLAG_V); + code_ptr no_trap = code->cur + 1; + jcc(code, CC_NC, no_trap); + ldi_native(opts, VECTOR_TRAPV, opts->gen.scratch2); + ldi_native(opts, inst->address+2, opts->gen.scratch1); + jmp(code, opts->trap); + *no_trap = code->cur - (no_trap + 1); +} + void translate_m68k_move_from_sr(m68k_options *opts, m68kinst *inst, host_ea *src_op, host_ea *dst_op) { code_info *code = &opts->gen.code; diff --git a/m68k_internal.h b/m68k_internal.h index b0c162e..a70da23 100644 --- a/m68k_internal.h +++ b/m68k_internal.h @@ -60,6 +60,7 @@ void translate_m68k_scc(m68k_options * opts, m68kinst * inst); void translate_m68k_dbcc(m68k_options * opts, m68kinst * inst); void translate_m68k_rtr(m68k_options *opts, m68kinst * inst); void translate_m68k_trap(m68k_options *opts, m68kinst *inst); +void translate_m68k_trapv(m68k_options *opts, m68kinst *inst); void translate_m68k_move(m68k_options * opts, m68kinst * inst); void translate_m68k_movep(m68k_options * opts, m68kinst * inst); void translate_m68k_arith(m68k_options *opts, m68kinst * inst, uint32_t flag_mask, host_ea *src_op, host_ea *dst_op); |