Mercurial > hg-old > index.cgi
annotate src/insn_logicmem.c @ 76:2fe5fd7d65a3
Checkpointing object target implementation
| author | lost |
|---|---|
| date | Thu, 08 Jan 2009 02:57:24 +0000 |
| parents | 538e15927776 |
| children | 8929e1ee99cf |
| rev | line source |
|---|---|
| 34 | 1 /* |
| 2 insn_logicmem.c | |
| 3 Copyright © 2009 William Astle | |
| 4 | |
| 5 This file is part of LWASM. | |
| 6 | |
| 7 LWASM is free software: you can redistribute it and/or modify it under the | |
| 8 terms of the GNU General Public License as published by the Free Software | |
| 9 Foundation, either version 3 of the License, or (at your option) any later | |
| 10 version. | |
| 11 | |
| 12 This program is distributed in the hope that it will be useful, but WITHOUT | |
| 13 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
| 14 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for | |
| 15 more details. | |
| 16 | |
| 17 You should have received a copy of the GNU General Public License along with | |
| 18 this program. If not, see <http://www.gnu.org/licenses/>. | |
| 19 | |
| 20 Contains code for handling logic/mem instructions | |
| 21 */ | |
| 22 | |
| 23 #include <ctype.h> | |
| 24 #include <stdio.h> | |
| 25 #include <string.h> | |
| 26 | |
| 27 #include "lwasm.h" | |
| 28 #include "instab.h" | |
| 29 #include "expr.h" | |
| 30 | |
| 31 extern void insn_gen_aux(asmstate_t *as, lwasm_line_t *l, char **optr, int opnum, int extra); | |
| 32 | |
| 33 // for aim, oim, eim, tim | |
| 34 OPFUNC(insn_logicmem) | |
| 35 { | |
| 36 int rval, v1; | |
| 37 const char *p2; | |
| 38 lwasm_expr_stack_t *s; | |
| 39 | |
| 40 if (**p == '#') | |
| 41 (*p)++; | |
| 42 | |
|
37
538e15927776
Added symbol handling to expression subsystem; adpated instruction handlers to the new scheme; misc fixes
lost
parents:
34
diff
changeset
|
43 s = lwasm_evaluate_expr(as, l, *p, &p2); |
| 34 | 44 *p = (char *)p2; |
| 45 | |
| 46 if (!s) | |
| 47 { | |
| 48 register_error(as, l, 1, "Bad expression"); | |
| 49 return; | |
| 50 } | |
| 51 | |
| 52 if (v1 < -128 || v1 > 255) | |
| 53 { | |
| 54 register_error(as, l, 2, "Byte overflow"); | |
| 55 v1 &= 0xff; | |
| 56 } | |
| 57 | |
| 58 if (**p != ',' && **p != ';') | |
| 59 { | |
| 60 register_error(as, l, 1, "Bad operand"); | |
| 61 return; | |
| 62 } | |
| 63 | |
| 64 (*p)++; | |
| 65 | |
| 66 // now we have a general addressing mode - call for it | |
| 67 insn_gen_aux(as, l, p, opnum, v1 & 0xff); | |
| 68 } |