From fe7f26256b5da63e46d3e36a8ddfe119dc9095b4 Mon Sep 17 00:00:00 2001 From: Aryadev Chavali Date: Fri, 3 Nov 2023 19:07:10 +0000 Subject: Defined a `program` structure Essentially a "program header", followed by a count, followed by instructions. Provides a stronger format for bytecode files and allows for better bounds checking on instructions. --- lib/inst.h | 22 ++++++++++++++++++++++ 1 file changed, 22 insertions(+) (limited to 'lib/inst.h') diff --git a/lib/inst.h b/lib/inst.h index 3877a2b..e6225a6 100644 --- a/lib/inst.h +++ b/lib/inst.h @@ -188,6 +188,28 @@ inst_t *insts_read_bytecode(darr_t *, size_t *); void insts_write_bytecode_file(inst_t *, size_t, FILE *); inst_t *insts_read_bytecode_file(FILE *, size_t *); +typedef struct +{ + word start_address; +} prog_header_t; + +typedef struct +{ + prog_header_t header; + word count; + inst_t instructions[]; +} prog_t; + +// Write the entire program as bytecode +void prog_write_bytecode(prog_t *, darr_t *); +// Only append the instructions as bytecode +void prog_append_bytecode(prog_t *, darr_t *); +// Read an entire program as bytecode +prog_t *prog_read_bytecode(darr_t *); + +void prog_write_file(prog_t *, FILE *); +prog_t *prog_read_file(FILE *); + #define INST_NOOP ((inst_t){0}) #define INST_HALT ((inst_t){.opcode = OP_HALT}) -- cgit v1.2.3-13-gbd6f