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view lwasm/instab.h @ 389:2d9b7ae6c329
Throw error if address overflows in extended mode
This may or may not cause extra problems due to sloppiness in dealing with
calculations that overflow in 16 bits. However, presumably it is a good idea
so unless something major pops up, it seems like a good idea.
Thanks to Erik G <erik@6809.org> for the patch.
author | William Astle <lost@l-w.ca> |
---|---|
date | Mon, 13 Jul 2015 21:37:49 -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__