mirror of
https://github.com/DarkFlippers/unleashed-firmware
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106 lines
2.9 KiB
C
106 lines
2.9 KiB
C
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/*
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* Copyright (c) 2017 Cesanta Software Limited
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* All rights reserved
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*/
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#ifndef MJS_BCODE_H_
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#define MJS_BCODE_H_
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#include "mjs_internal.h"
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#include "mjs_core.h"
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#if defined(__cplusplus)
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extern "C" {
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#endif /* __cplusplus */
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enum mjs_opcode {
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OP_NOP, /* ( -- ) */
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OP_DROP, /* ( a -- ) */
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OP_DUP, /* ( a -- a a ) */
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OP_SWAP, /* ( a b -- b a ) */
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OP_JMP, /* ( -- ) */
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OP_JMP_TRUE, /* ( -- ) */
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OP_JMP_NEUTRAL_TRUE, /* ( -- ) */
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OP_JMP_FALSE, /* ( -- ) */
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OP_JMP_NEUTRAL_FALSE, /* ( -- ) */
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OP_FIND_SCOPE, /* ( a -- a b ) */
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OP_PUSH_SCOPE, /* ( -- a ) */
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OP_PUSH_STR, /* ( -- a ) */
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OP_PUSH_TRUE, /* ( -- a ) */
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OP_PUSH_FALSE, /* ( -- a ) */
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OP_PUSH_INT, /* ( -- a ) */
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OP_PUSH_DBL, /* ( -- a ) */
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OP_PUSH_NULL, /* ( -- a ) */
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OP_PUSH_UNDEF, /* ( -- a ) */
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OP_PUSH_OBJ, /* ( -- a ) */
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OP_PUSH_ARRAY, /* ( -- a ) */
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OP_PUSH_FUNC, /* ( -- a ) */
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OP_PUSH_THIS, /* ( -- a ) */
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OP_GET, /* ( key obj -- obj[key] ) */
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OP_CREATE, /* ( key obj -- ) */
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OP_EXPR, /* ( ... -- a ) */
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OP_APPEND, /* ( a b -- ) */
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OP_SET_ARG, /* ( a -- a ) */
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OP_NEW_SCOPE, /* ( -- ) */
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OP_DEL_SCOPE, /* ( -- ) */
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OP_CALL, /* ( func param1 param2 ... num_params -- result ) */
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OP_RETURN, /* ( -- ) */
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OP_LOOP, /* ( -- ) Push break & continue addresses to loop_labels */
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OP_BREAK, /* ( -- ) */
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OP_CONTINUE, /* ( -- ) */
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OP_SETRETVAL, /* ( a -- ) */
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OP_EXIT, /* ( -- ) */
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OP_BCODE_HEADER, /* ( -- ) */
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OP_ARGS, /* ( -- ) Mark the beginning of function call arguments */
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OP_FOR_IN_NEXT, /* ( name obj iter_ptr -- name obj iter_ptr_next ) */
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OP_MAX
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};
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struct pstate;
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struct mjs;
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MJS_PRIVATE void emit_byte(struct pstate* pstate, uint8_t byte);
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MJS_PRIVATE void emit_int(struct pstate* pstate, int64_t n);
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MJS_PRIVATE void emit_str(struct pstate* pstate, const char* ptr, size_t len);
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/*
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* Inserts provided offset `v` at the offset `offset`.
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*
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* Returns delta at which the code was moved; the delta can be any: 0 or
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* positive or negative.
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*/
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MJS_PRIVATE int
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mjs_bcode_insert_offset(struct pstate* p, struct mjs* mjs, size_t offset, size_t v);
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/*
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* Adds a new bcode part; does not retain `bp`.
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*/
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MJS_PRIVATE void mjs_bcode_part_add(struct mjs* mjs, const struct mjs_bcode_part* bp);
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/*
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* Returns bcode part by the bcode number
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*/
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MJS_PRIVATE struct mjs_bcode_part* mjs_bcode_part_get(struct mjs* mjs, int num);
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/*
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* Returns bcode part by the global bcode offset
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*/
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MJS_PRIVATE struct mjs_bcode_part* mjs_bcode_part_get_by_offset(struct mjs* mjs, size_t offset);
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/*
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* Returns a number of bcode parts
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*/
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MJS_PRIVATE int mjs_bcode_parts_cnt(struct mjs* mjs);
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/*
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* Adds the bcode being generated (mjs->bcode_gen) as a next bcode part
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*/
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MJS_PRIVATE void mjs_bcode_commit(struct mjs* mjs);
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#if defined(__cplusplus)
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}
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#endif /* __cplusplus */
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#endif /* MJS_BCODE_H_ */
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