Mercurial > repos > blastem

comparison z80_to_x86.c @ 644:2d7e84ae818c

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
Temporarily comment out code to translate Z80 instructions in place as in rare cases it can stomp the next instruction if a branch goes from a short from to a long one
author Michael Pavone <pavone@retrodev.com>
date Wed, 03 Dec 2014 09:30:01 -0800
parents 041578693329
children 103d5cabbe14
comparison
equal deleted inserted replaced
643:da52f7b72156 644:2d7e84ae818c
1869 opts->code_end = dst_end = dst + size; 1869 opts->code_end = dst_end = dst + size;
1870 opts->cur_code = dst; 1870 opts->cur_code = dst;
1871 } 1871 }
1872 deferred_addr * orig_deferred = opts->deferred; 1872 deferred_addr * orig_deferred = opts->deferred;
1873 uint8_t * native_end = translate_z80inst(&instbuf, dst, context, address, 0); 1873 uint8_t * native_end = translate_z80inst(&instbuf, dst, context, address, 0);
1874 /*
1874 if ((native_end - dst) <= orig_size) { 1875 if ((native_end - dst) <= orig_size) {
1875 uint8_t * native_next = z80_get_native_address(context, address + after-inst); 1876 uint8_t * native_next = z80_get_native_address(context, address + after-inst);
1876 if (native_next && ((native_next == orig_start + orig_size) || (orig_size - (native_end - dst)) > 5)) { 1877 if (native_next && ((native_next == orig_start + orig_size) || (orig_size - (native_end - dst)) > 5)) {
1877 remove_deferred_until(&opts->deferred, orig_deferred); 1878 remove_deferred_until(&opts->deferred, orig_deferred);
1878 native_end = translate_z80inst(&instbuf, orig_start, context, address, 0); 1879 native_end = translate_z80inst(&instbuf, orig_start, context, address, 0);
1885 } 1886 }
1886 z80_handle_deferred(context); 1887 z80_handle_deferred(context);
1887 return orig_start; 1888 return orig_start;
1888 } 1889 }
1889 } 1890 }
1891 */
1890 z80_map_native_address(context, address, dst, after-inst, ZMAX_NATIVE_SIZE); 1892 z80_map_native_address(context, address, dst, after-inst, ZMAX_NATIVE_SIZE);
1891 opts->cur_code = dst+ZMAX_NATIVE_SIZE; 1893 opts->cur_code = dst+ZMAX_NATIVE_SIZE;
1892 jmp(orig_start, dst); 1894 jmp(orig_start, dst);
1893 if (!z80_is_terminal(&instbuf)) { 1895 if (!z80_is_terminal(&instbuf)) {
1894 jmp(native_end, z80_get_native_address_trans(context, address + after-inst)); 1896 jmp(native_end, z80_get_native_address_trans(context, address + after-inst));