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Large Pack of OldSkool DOS MOD Trackers
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goattracker_2.68.zip
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asm
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parse.h
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C/C++ Source or Header
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2008-04-01
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122 lines
#ifndef INCLUDED_PARSE
#define INCLUDED_PARSE
/*
* Copyright (c) 2005 Magnus Lind.
*
* This software is provided 'as-is', without any express or implied warranty.
* In no event will the authors be held liable for any damages arising from
* the use of this software.
*
* Permission is granted to anyone to use this software, alter it and re-
* distribute it freely for any non-commercial, non-profit purpose subject to
* the following restrictions:
*
* 1. The origin of this software must not be misrepresented; you must not
* claim that you wrote the original software. If you use this software in a
* product, an acknowledgment in the product documentation would be
* appreciated but is not required.
*
* 2. Altered source versions must be plainly marked as such, and must not
* be misrepresented as being the original software.
*
* 3. This notice may not be removed or altered from any distribution.
*
* 4. The names of this software and/or it's copyright holders may not be
* used to endorse or promote products derived from this software without
* specific prior written permission.
*
*/
#include "int.h"
#include "vec.h"
#include "membuf.h"
#include "expr.h"
#define ATOM_TYPE_OP_ARG_NONE 0 /* uses u.op */
#define ATOM_TYPE_OP_ARG_U8 1 /* uses u.op */
#define ATOM_TYPE_OP_ARG_U16 2 /* uses u.op */
#define ATOM_TYPE_OP_ARG_I8 3 /* uses u.op */
#define ATOM_TYPE_OP_ARG_UI8 4 /* uses u.op */
#define ATOM_TYPE_EXPRS 12 /* uses u.exprs */
#define ATOM_TYPE_WORD_EXPRS 10 /* uses u.exprs */
#define ATOM_TYPE_BYTE_EXPRS 11 /* uses u.exprs */
#define ATOM_TYPE_RES 13 /* uses u.res */
#define ATOM_TYPE_BUFFER 14 /* uses u.buffer */
struct op
{
struct expr *arg;
u8 code;
};
struct res
{
struct expr *length;
struct expr *value;
};
struct buffer
{
const char *name;
i32 length;
i32 skip;
};
struct atom
{
u8 type;
union
{
struct op op;
struct vec *exprs;
struct buffer buffer;
struct res res;
} u;
};
extern int push_state_skip;
extern int push_state_macro;
extern int push_state_init;
extern int num_lines;
void parse_init();
void parse_free();
struct atom *new_op(u8 op_code, u8 op_size, struct expr *arg);
struct atom *new_op0(u8 op_code);
struct atom *new_exprs(struct expr *arg);
struct atom *exprs_add(struct atom *atom, struct expr *arg);
struct atom *exprs_to_byte_exprs(struct atom *atom);
struct atom *exprs_to_word_exprs(struct atom *atom);
struct atom *new_res(struct expr *len, struct expr *value);
struct atom *new_incbin(const char *name, struct expr *skip, struct expr *len);
struct expr *new_is_defined(const char *symbol);
struct expr *new_expr_incword(const char *name, struct expr *skip);
void new_symbol(const char *symbol, i32 value);
void new_symbol_expr(const char *symbol, struct expr *arg);
/* returns NULL if found, not otherwise, expp may be NULL. */
const char *find_symref(const char *symbol, struct expr **expp);
void symbol_dump_resolved(int level, const char *symbol);
void new_label(const char *label);
void set_org(struct expr *arg);
void push_if_state(struct expr *arg);
void push_macro_state(const char *name);
void macro_append(const char *text);
void asm_error(const char *msg);
void asm_echo(const char *msg);
void asm_include(const char *msg);
int assemble(struct membuf *source, struct membuf *dest);
void output_atoms(struct membuf *out, struct vec *mem);
void asm_src_buffer_push(struct membuf *buf);
#endif