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comparison m68k_core_x86.c @ 665:d0943769353b

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Added functions to gen_x86 for saving and restoring callee save registers to better abstract over ABI differences between x86 and x86-64
author Michael Pavone <pavone@retrodev.com>
date Fri, 02 Jan 2015 13:14:09 -0800
parents 92ce5ea5ffc9
children 30ccf56842d6
comparison
equal deleted inserted replaced
664:bca748422bf0 665:d0943769353b
2279 mov_rdispr(code, opts->gen.context_reg, offsetof(m68k_context, current_cycle), opts->gen.cycles, SZ_D); 2279 mov_rdispr(code, opts->gen.context_reg, offsetof(m68k_context, current_cycle), opts->gen.cycles, SZ_D);
2280 mov_rdispr(code, opts->gen.context_reg, offsetof(m68k_context, target_cycle), opts->gen.limit, SZ_D); 2280 mov_rdispr(code, opts->gen.context_reg, offsetof(m68k_context, target_cycle), opts->gen.limit, SZ_D);
2281 retn(code); 2281 retn(code);
2282 2282
2283 opts->start_context = (start_fun)code->cur; 2283 opts->start_context = (start_fun)code->cur;
2284 save_callee_save_regs(code);
2284 #ifdef X86_64 2285 #ifdef X86_64
2285 if (opts->gen.scratch2 != RDI) { 2286 if (opts->gen.scratch2 != RDI) {
2286 mov_rr(code, RDI, opts->gen.scratch2, SZ_PTR); 2287 mov_rr(code, RDI, opts->gen.scratch2, SZ_PTR);
2287 } 2288 }
2288 //save callee save registers
2289 push_r(code, RBP);
2290 push_r(code, R12);
2291 push_r(code, R13);
2292 push_r(code, R14);
2293 push_r(code, R15);
2294 #else 2289 #else
2295 //save callee save registers
2296 push_r(code, RBP);
2297 push_r(code, RBX);
2298 push_r(code, RSI);
2299 push_r(code, RDI);
2300
2301 mov_rdispr(code, RSP, 20, opts->gen.scratch2, SZ_D); 2290 mov_rdispr(code, RSP, 20, opts->gen.scratch2, SZ_D);
2302 mov_rdispr(code, RSP, 24, opts->gen.context_reg, SZ_D); 2291 mov_rdispr(code, RSP, 24, opts->gen.context_reg, SZ_D);
2303 #endif 2292 #endif
2304 call(code, opts->gen.load_context); 2293 call(code, opts->gen.load_context);
2305 call_r(code, opts->gen.scratch2); 2294 call_r(code, opts->gen.scratch2);
2306 call(code, opts->gen.save_context); 2295 call(code, opts->gen.save_context);
2307 #ifdef X86_64 2296 restore_callee_save_regs(code);
2308 //restore callee save registers
2309 pop_r(code, R15);
2310 pop_r(code, R14);
2311 pop_r(code, R13);
2312 pop_r(code, R12);
2313 pop_r(code, RBP);
2314 #else
2315 pop_r(code, RDI);
2316 pop_r(code, RSI);
2317 pop_r(code, RBX);
2318 pop_r(code, RBP);
2319 #endif
2320 retn(code); 2297 retn(code);
2321 2298
2322 opts->native_addr = code->cur; 2299 opts->native_addr = code->cur;
2323 call(code, opts->gen.save_context); 2300 call(code, opts->gen.save_context);
2324 push_r(code, opts->gen.context_reg); 2301 push_r(code, opts->gen.context_reg);