Mercurial > repos > blastem
diff m68k_core.c @ 653:a18e3923481e
Remove some of the hard coded assumptions about the memory map from the CPU cores
author | Michael Pavone <pavone@retrodev.com> |
---|---|
date | Thu, 01 Jan 2015 14:36:55 -0800 |
parents | 60a06c025103 |
children | 98927f1b005b |
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--- a/m68k_core.c Tue Dec 30 19:11:34 2014 -0800 +++ b/m68k_core.c Thu Jan 01 14:36:55 2015 -0800 @@ -754,26 +754,17 @@ m68kinst instbuf; m68k_options * opts = context->options; code_info *code = &opts->gen.code; - address &= 0xFFFFFF; if(get_native_address(opts->gen.native_code_map, address)) { return; } - char disbuf[1024]; uint16_t *encoded, *next; - if ((address & 0xFFFFFF) < 0x400000) { - encoded = context->mem_pointers[0] + (address & 0xFFFFFF)/2; - } else if ((address & 0xFFFFFF) > 0xE00000) { - encoded = context->mem_pointers[1] + (address & 0xFFFF)/2; - } else { - printf("attempt to translate non-memory address: %X\n", address); - exit(1); - } do { if (opts->address_log) { fprintf(opts->address_log, "%X\n", address); } do { - if (address >= 0x400000 && address < 0xE00000) { + encoded = get_native_pointer(address, (void **)context->mem_pointers, &opts->gen); + if (!encoded) { translate_out_of_bounds(code); break; } @@ -788,7 +779,7 @@ } uint16_t m68k_size = (next-encoded)*2; address += m68k_size; - encoded = next; + //char disbuf[1024]; //m68k_disasm(&instbuf, disbuf); //printf("%X: %s\n", instbuf.address, disbuf); @@ -802,18 +793,8 @@ process_deferred(&opts->gen.deferred, context, (native_addr_func)get_native_from_context); if (opts->gen.deferred) { address = opts->gen.deferred->address; - if ((address & 0xFFFFFF) < 0x400000) { - encoded = context->mem_pointers[0] + (address & 0xFFFFFF)/2; - } else if ((address & 0xFFFFFF) > 0xE00000) { - encoded = context->mem_pointers[1] + (address & 0xFFFF)/2; - } else { - printf("attempt to translate non-memory address: %X\n", address); - exit(1); - } - } else { - encoded = NULL; } - } while(encoded != NULL); + } while(opts->gen.deferred); } void * m68k_retranslate_inst(uint32_t address, m68k_context * context) @@ -826,8 +807,7 @@ code_info orig_code; orig_code.cur = orig_start; orig_code.last = orig_start + orig_size + 5; - address &= 0xFFFF; - uint16_t *after, *inst = context->mem_pointers[1] + address/2; + uint16_t *after, *inst = get_native_pointer(address, (void **)context->mem_pointers, &opts->gen); m68kinst instbuf; after = m68k_decode(inst, &instbuf, orig); if (orig_size != MAX_NATIVE_SIZE) { @@ -910,7 +890,7 @@ void remove_breakpoint(m68k_context * context, uint32_t address) { code_ptr native = get_native_address(context->native_code_map, address); - check_cycles_int(context->options, address); + check_cycles_int(&context->options->gen, address); } void start_68k_context(m68k_context * context, uint32_t address) @@ -922,9 +902,10 @@ void m68k_reset(m68k_context * context) { - //TODO: Make this actually use the normal read functions - context->aregs[7] = context->mem_pointers[0][0] << 16 | context->mem_pointers[0][1]; - uint32_t address = context->mem_pointers[0][2] << 16 | context->mem_pointers[0][3]; + //TODO: Actually execute the M68K reset vector rather than simulating some of its behavior + uint16_t *reset_vec = get_native_pointer(0, (void **)context->mem_pointers, &context->options->gen); + context->aregs[7] = reset_vec[0] << 16 | reset_vec[1]; + uint32_t address = reset_vec[2] << 16 | reset_vec[3]; start_68k_context(context, address); }