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view lwasm/instab.h @ 402:b20f14edda5a
Completed initial conversion to new parser allowing spaces in operands
Converted the remaining addressing modes. This required a complete rewrite
of a large portion of the indexed addressing parser. Now the entire indexed
parsing system is programmatic without cheating with a lookup table.
This update also fixes the "force 0,r" by writing a literal 0,r which is
*supposed* to work.
There will likely be some pseudo ops that need tweaking for space handling,
specially those that take multiple operands of some description which are
not expressions. (The expression parser call eats the spaces both before and
after the expression, if appropriate.)
author | William Astle <lost@l-w.ca> |
---|---|
date | Wed, 14 Oct 2015 20:49:41 -0600 |
parents | 4fd16faa4d93 |
children | e97f9a302c6a |
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/* instab.h Copyright © 2008 William Astle This file is part of LWASM. LWASM is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with this program. If not, see <http://www.gnu.org/licenses/>. Contains definitions for the instruction table */ #ifndef __instab_h_seen__ #define __instab_h_seen__ #include "lwasm.h" typedef struct { char *opcode; /* the mneumonic */ int ops[4]; /* opcode values for up to four addr modes */ void (*parse)(asmstate_t *as, line_t *l, char **optr); /* parse operand for insn */ void (*resolve)(asmstate_t *as, line_t *l, int force); /* resolve instruction to code */ void (*emit)(asmstate_t *as, line_t *l); /* resolve instruction to code */ int flags; /* flag for this instruction */ } instab_t; enum { lwasm_insn_cond = 1, /* conditional instruction */ lwasm_insn_endm = 1 << 1, /* end of macro */ lwasm_insn_setsym = 1 << 2, /* insn sets symbol address */ lwasm_insn_is6309 = 1 << 3, /* insn is 6309 only */ lwasm_insn_struct = 1 << 4, /* insn allowed in a struct */ lwasm_insn_setdata = 1 << 5, /* insn uses the data address for symbols */ lwasm_insn_is6800 = 1 << 6, /* insn is a 6800 compatibility operation */ lwasm_insn_is6809 = 1 << 7, /* insn is 6809 only */ lwasm_insn_is6809conv = 1 << 8, /* insn is 6809 convenience only */ lwasm_insn_is6309conv = 1 << 9, /* insn is 6309 convenience only */ lwasm_insn_normal = 0 }; #define PARSEFUNC(fn) void (fn)(asmstate_t *as, line_t *l, char **p) #define RESOLVEFUNC(fn) void (fn)(asmstate_t *as, line_t *l, int force) #define EMITFUNC(fn) void (fn)(asmstate_t *as, line_t *l) extern instab_t instab[]; #endif //__instab_h_seen__