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comparison backend_x86.c @ 620:9d6fed6501ba

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Fix handling of code writes for Z80 core. This seems to get things close to being back to where they were before the big refactor that broke the Z80 core. Some problems remain. Notably the sound driver in Sonic 2 is still quite broken.
author Michael Pavone <pavone@retrodev.com>
date Mon, 29 Dec 2014 23:08:39 -0800
parents 39d7d463ed5b
children 6aa29ac33f1a
comparison
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619:3072fb746601 620:9d6fed6501ba
198 or_ir(code, 0xFF00, opts->scratch1, SZ_W); 198 or_ir(code, 0xFF00, opts->scratch1, SZ_W);
199 } 199 }
200 } 200 }
201 } 201 }
202 if (is_write && (memmap[chunk].flags & MMAP_CODE)) { 202 if (is_write && (memmap[chunk].flags & MMAP_CODE)) {
203 //TODO: Fixme for Z80
204 mov_rr(code, opts->scratch2, opts->scratch1, opts->address_size); 203 mov_rr(code, opts->scratch2, opts->scratch1, opts->address_size);
205 shr_ir(code, 11, opts->scratch1, opts->address_size); 204 shr_ir(code, opts->ram_flags_shift, opts->scratch1, opts->address_size);
206 bt_rrdisp(code, opts->scratch1, opts->context_reg, opts->ram_flags_off, opts->address_size); 205 bt_rrdisp(code, opts->scratch1, opts->context_reg, opts->ram_flags_off, opts->address_size);
207 code_ptr not_code = code->cur + 1; 206 code_ptr not_code = code->cur + 1;
208 jcc(code, CC_NC, code->cur + 2); 207 jcc(code, CC_NC, code->cur + 2);
209 call(code, opts->save_context); 208 call(code, opts->save_context);
210 #ifdef X86_32 209 #ifdef X86_32
211 push_r(code, opts->context_reg); 210 push_r(code, opts->context_reg);
212 push_r(code, opts->scratch2); 211 push_r(code, opts->scratch2);
212 #else
213 if (opts->scratch2 != RDI) {
214 mov_rr(code, opts->scratch2, RDI, opts->address_size);
215 }
213 #endif 216 #endif
214 call(code, opts->handle_code_write); 217 call(code, opts->handle_code_write);
215 #ifdef X86_32 218 #ifdef X86_32
216 add_ir(code, 8, RSP, SZ_D); 219 add_ir(code, 8, RSP, SZ_D);
217 #endif 220 #endif