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#ifndef CREOLE_H
#define CREOLE_H
#include <limits.h>
#include <stddef.h>
#ifndef CREOLE_WORD
# define CREOLE_WORD unsigned int
# define CREOLE_WORD_MAX UINT_MAX
#endif
#define CREOLE_MAX_ARG 3
typedef CREOLE_WORD creole_word;
enum creole_opcode {
CREOLE_NOOP = 0,
CREOLE_PUSH = 1,
CREOLE_POP = 2,
CREOLE_ADD = 3,
CREOLE_MUL = 4,
CREOLE_DIV = 5,
CREOLE_JL = 6,
CREOLE_CLB = 7,
CREOLE_SYS = 8,
CREOLE_OPCODE_LEN
};
enum creole_word_flag {
CREOLE_IMMEDIATE,
CREOLE_REGISTER,
CREOLE_WORD_FLAGS_LEN
};
enum creole_compiler_ret {
CREOLE_COMPILE_OK,
CREOLE_OPCODE_READ_ERROR,
CREOLE_OPCODE_MALFORMED,
CREOLE_ARG_READ_ERROR,
CREOLE_ARG_MALFORMED,
CREOLE_LAST_READ_ERROR,
CREOLE_LAST_MALFORMED,
CREOLE_LABEL_OVERFLOW,
CREOLE_TYPE_ERROR,
CREOLE_COMPILE_RET_LEN
};
struct creole_ins {
enum creole_opcode opcode;
unsigned char w_flags[3];
creole_word w[3];
};
struct creole_env {
creole_word *reg;
size_t reglen;
size_t *lab;
size_t lablen;
creole_word *stk;
size_t stkptr, stklen;
struct creole_ins *prg;
size_t prgptr, prgend, prglen;
};
struct creole_reader {
unsigned char *p;
size_t left;
};
int creole_encode(creole_word i, unsigned encode_to, unsigned high_bits,
unsigned char buf[7]);
enum creole_compiler_ret
creole_parse_line(struct creole_ins *ins, struct creole_reader *r);
#endif /* CREOLE_H */
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