Mercurial > repos > blastem
diff m68k_core.c @ 989:d70000fdff0b
Implemented IR and undefined bits of info word for address error exception frames
author | Michael Pavone <pavone@retrodev.com> |
---|---|
date | Wed, 27 Apr 2016 21:39:17 -0700 |
parents | ce9df7a5fdf2 |
children | 33a46d35b913 |
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--- a/m68k_core.c Wed Apr 27 19:10:50 2016 -0700 +++ b/m68k_core.c Wed Apr 27 21:39:17 2016 -0700 @@ -702,6 +702,17 @@ } } +uint16_t m68k_get_ir(m68k_context *context) +{ + uint32_t inst_addr = get_instruction_start(context->options, context->native_code_map, context->last_prefetch_address-2); + uint16_t *native_addr = get_native_pointer(inst_addr, (void **)context->mem_pointers, &context->options->gen); + if (native_addr) { + return *native_addr; + } + fprintf(stderr, "M68K: Failed to calculate value of IR. Last prefetch address: %X\n", context->last_prefetch_address); + return 0xFFFF; +} + typedef enum { RAW_FUNC = 1, BINARY_ARITH, @@ -826,6 +837,7 @@ if ( (inst->src.addr_mode > MODE_AREG && inst->src.addr_mode < MODE_IMMEDIATE) || (inst->dst.addr_mode > MODE_AREG && inst->dst.addr_mode < MODE_IMMEDIATE) + || (inst->op == M68K_BCC && (inst->src.params.immed & 1)) ) { //Not accurate for all cases, but probably good enough for now m68k_set_last_prefetch(opts, inst->address + inst->bytes);