Mercurial > repos > blastem
diff gen_arm.c @ 563:c8fefa140c80
Moved some generic stuff from backend.h gen_arm.h and gen_arm.c into gen.h and gen.c. Added a couple fields to cpu_options so that gen_mem_fun can be made guest CPU generic
author | Michael Pavone <pavone@retrodev.com> |
---|---|
date | Mon, 24 Feb 2014 09:55:24 -0800 |
parents | 474270dbff15 |
children | bff307e03a94 |
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--- a/gen_arm.c Mon Feb 24 01:30:16 2014 -0800 +++ b/gen_arm.c Mon Feb 24 09:55:24 2014 -0800 @@ -57,10 +57,6 @@ #define REG 0u - -#define RESERVE_INSTRUCTIONS 4 //1 ldr + 1bx + 1 constant -#define CODE_ALLOC_SIZE (1024*1024) - uint32_t make_immed(uint32_t val) { uint32_t rot_amount = 0; @@ -74,17 +70,6 @@ return INVALID_IMMED; } -void init_code_info(code_info *code) -{ - size_t size = CODE_ALLOC_SIZE; - code->cur = alloc_code(&size); - if (!code->cur) { - fputs("Failed to allocate memory for generated code\n", stderr); - exit(1); - } - code->last = code->cur + size/sizeof(uint32_t) - RESERVE_INSTRUCTIONS; -} - void check_alloc_code(code_info *code) { if (code->cur == code->last) { @@ -94,9 +79,9 @@ fputs("Failed to allocate memory for generated code\n", stderr); exit(1); } - if (next_code = code->last + RESERVE_INSTRUCTIONS) { + if (next_code = code->last + RESERVE_WORDS) { //new chunk is contiguous with the current one - code->last = next_code + size/sizeof(uint32_t) - RESERVE_INSTRUCTIONS; + code->last = next_code + size/sizeof(code_word) - RESERVE_WORDS; } else { uint32_t * from = code->cur + 2; if (next_code - from < 0x400000 || from - next_code <= 0x400000) { @@ -115,7 +100,7 @@ } //branch to address in r0 *from = CC_AL | OP_BX; - code->last = next_code + size/sizeof(uint32_t) - RESERVE_INSTRUCTIONS; + code->last = next_code + size/sizeof(code_word) - RESERVE_WORDS; //pop r0 *(next_code++) = CC_AL | POP; code->cur = next_code;