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comparison gen_x86.c @ 1840:3d0b20e9a187

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Merge
author Michael Pavone <pavone@retrodev.com>
date Thu, 18 Apr 2019 19:48:04 -0700
parents a79e92929044
children 4af54c6ca3e6
comparison
equal deleted inserted replaced
1838:0c1491818f4b 1840:3d0b20e9a187
2109 { 2109 {
2110 arg_arr[i] = va_arg(args, int); 2110 arg_arr[i] = va_arg(args, int);
2111 } 2111 }
2112 #ifdef X86_64 2112 #ifdef X86_64
2113 uint32_t stack_args = 0; 2113 uint32_t stack_args = 0;
2114 #ifdef _WIN32
2115 //Microsoft is too good for the ABI that everyone else uses on x86-64 apparently
2116 uint8_t abi_regs[] = {RCX, RDX, R8, R9};
2117 #else
2114 uint8_t abi_regs[] = {RDI, RSI, RDX, RCX, R8, R9}; 2118 uint8_t abi_regs[] = {RDI, RSI, RDX, RCX, R8, R9};
2119 #endif
2115 int8_t reg_swap[R15+1]; 2120 int8_t reg_swap[R15+1];
2116 uint32_t usage = 0; 2121 uint32_t usage = 0;
2117 memset(reg_swap, -1, sizeof(reg_swap)); 2122 memset(reg_swap, -1, sizeof(reg_swap));
2118 for (int i = 0; i < num_args; i ++) 2123 for (int i = 0; i < num_args; i ++)
2119 { 2124 {
2151 for (int i = stack_args -1; i >= 0; i--) 2156 for (int i = stack_args -1; i >= 0; i--)
2152 { 2157 {
2153 push_r(code, arg_arr[i]); 2158 push_r(code, arg_arr[i]);
2154 } 2159 }
2155 free(arg_arr); 2160 free(arg_arr);
2161 #if defined(X86_64) && defined(_WIN32)
2162 sub_ir(code, 32, RSP, SZ_PTR);
2163 code->stack_off += 32;
2164 adjust += 32;
2165 #endif
2156 2166
2157 return stack_args * sizeof(void *) + adjust; 2167 return stack_args * sizeof(void *) + adjust;
2158 } 2168 }
2159 2169
2160 void call_args(code_info *code, code_ptr fun, uint32_t num_args, ...) 2170 void call_args(code_info *code, code_ptr fun, uint32_t num_args, ...)
2216 #ifdef X86_64 2226 #ifdef X86_64
2217 push_r(code, R12); 2227 push_r(code, R12);
2218 push_r(code, R13); 2228 push_r(code, R13);
2219 push_r(code, R14); 2229 push_r(code, R14);
2220 push_r(code, R15); 2230 push_r(code, R15);
2221 #else 2231 #endif
2232 #if !defined(X86_64) || defined(_WIN32)
2222 push_r(code, RDI); 2233 push_r(code, RDI);
2223 push_r(code, RSI); 2234 push_r(code, RSI);
2224 #endif 2235 #endif
2225 } 2236 }
2226 2237
2227 void restore_callee_save_regs(code_info *code) 2238 void restore_callee_save_regs(code_info *code)
2228 { 2239 {
2240 #if !defined(X86_64) || defined(_WIN32)
2241 pop_r(code, RSI);
2242 pop_r(code, RDI);
2243 #endif
2229 #ifdef X86_64 2244 #ifdef X86_64
2230 pop_r(code, R15); 2245 pop_r(code, R15);
2231 pop_r(code, R14); 2246 pop_r(code, R14);
2232 pop_r(code, R13); 2247 pop_r(code, R13);
2233 pop_r(code, R12); 2248 pop_r(code, R12);
2234 #else
2235 pop_r(code, RSI);
2236 pop_r(code, RDI);
2237 #endif 2249 #endif
2238 pop_r(code, RBP); 2250 pop_r(code, RBP);
2239 pop_r(code, RBX); 2251 pop_r(code, RBX);
2240 } 2252 }
2241 2253