diff options
Diffstat (limited to 'bcode.c')
| -rw-r--r-- | bcode.c | 29 |
1 files changed, 25 insertions, 4 deletions
@@ -41,7 +41,7 @@ static void append(struct compile_state *cs, enum bcode_insn label, breg_t imm) #define IMM s.imm[pc].g #define DIMM s.imm[pc].f -#define NEXT_INSN goto *s.op[pc++] +#define NEXT_INSN goto *s.op[++pc] #define JUMP(i) goto *s.op[pc = (i)] static gbreg_t _run(struct compile_state *cs, bool init) @@ -62,6 +62,7 @@ static gbreg_t _run(struct compile_state *cs, bool init) const struct run_state s = cs->s; size_t pc = 0; JUMP(pc); + #include "gen/body.inc" end: /* we assume there's always at least one general register */ @@ -76,13 +77,33 @@ gbreg_t run(struct compile_state *cs) void init(struct compile_state *cs) { cs->labels = NULL; - cs->s.imm = NULL; - cs->s.op = NULL; - cs->size = 0; + cs->size = 16; + + cs->s.imm = malloc(cs->size * sizeof(*cs->s.imm)); + assert(cs->s.imm); + + cs->s.op = malloc(cs->size * sizeof(*cs->s.op)); + assert(cs->s.op); + cs->pc = 0; _run(cs, true); } +void end(struct compile_state *cs) +{ + PUSH_OP(END); +} + +breg_t label(struct compile_state *cs) +{ + return (breg_t){.g = cs->pc}; +} + +void patch(struct compile_state *cs, breloc_t reloc, breg_t imm) +{ + cs->s.imm[reloc] = imm; +} + void destroy(struct compile_state *cs) { free(cs->s.op); |