diff options
| -rw-r--r-- | mips.c | 29 | ||||
| -rw-r--r-- | semantics.h | 1 |
2 files changed, 27 insertions, 3 deletions
@@ -59,10 +59,28 @@ void mips_prologue(void) { printf("\t.space %d\n", calc_size(var->type)); } printf("\t.align 2\n"); + prev += align_shift(prev); for (s = cstrs; s; s = s->next) { + int len = 1; + char *p = s->str; printf("_str_%d:\n", s->id); printf("\t.asciiz \"%s\"\n", s->str); + s->start = prev; + for (; *p != '\0'; p++) + { + len++; + if (*p == '\\') + { + switch (*(++p)) + { + case '0': p += 3; break; + case 'x': p += 2; break; + default: ; + } + } + } + prev += len; } /* pre-calc done */ printf(".text\n"); @@ -73,7 +91,7 @@ void mips_prologue(void) { void mips_global_addr(int reg, CVar_t var) { int offset = var->start - 0x8000; if (IN_IMM(offset)) - printf("\taddiu $%d, $gp, %d\n", reg, offset); + printf("\taddiu $%d, $gp, %d #%s\n", reg, offset, var->name); else printf("\tla $%d, _%s\n", reg, var->name); } @@ -81,7 +99,7 @@ void mips_global_addr(int reg, CVar_t var) { void mips_global(const char *l, int reg, CVar_t var) { int offset = var->start - 0x8000; if (IN_IMM(offset)) - printf("\t%s $%d, %d($gp)\n", l, reg, offset); + printf("\t%s $%d, %d($gp) #%s\n", l, reg, offset, var->name); else printf("\t%s $%d, _%s\n", l, reg, var->name); } @@ -127,7 +145,12 @@ int mips_to_reg(COpr_t opr, int reg0) { } else if (opr->kind == IMMS) { - printf("\tla $%d, _str_%d\n", reg0, opr->info.cstr->id); + CSList_t cstr = opr->info.cstr; + int offset = cstr->start - 0x8000; + if (IN_IMM(offset)) + printf("\taddiu $%d, $gp, %d # _str_%d\n", reg0, offset, cstr->id); + else + printf("\tla $%d, _str_%d\n", reg0, cstr->id); return reg0; } else if (opr->kind == IMMF) diff --git a/semantics.h b/semantics.h index 37cffb3..b77cf2e 100644 --- a/semantics.h +++ b/semantics.h @@ -32,6 +32,7 @@ typedef CSList *CSList_t; struct CSList { char *str; int id; + int start; CSList_t next; }; |