LWTools Old Repo: src/insn

annotate src/insn_gen.c @ 65:31d8e85706e7

Implemented setdp and corrected handling of direct page detection in insn_gen_aux()

author	lost
date	Mon, 05 Jan 2009 01:40:01 +0000
parents	da1337724ecd
children	a338d496350e

rev	line source
0 57495da01900 Initial checking of LWASM lost parents: diff changeset	1 /*
33 74a3fef7c8d0 Added general addressing modes (immediate, base page, extended, indexed) lost parents: 4 diff changeset	2 insn_gen.c, Copyright © 2009 William Astle
4 34568fab6058 Fixed package to include all required files; also added copyright preamble to all source files lost parents: 0 diff changeset	3
34568fab6058 Fixed package to include all required files; also added copyright preamble to all source files lost parents: 0 diff changeset	4 This file is part of LWASM.
34568fab6058 Fixed package to include all required files; also added copyright preamble to all source files lost parents: 0 diff changeset	5
34568fab6058 Fixed package to include all required files; also added copyright preamble to all source files lost parents: 0 diff changeset	6 LWASM is free software: you can redistribute it and/or modify it under the
34568fab6058 Fixed package to include all required files; also added copyright preamble to all source files lost parents: 0 diff changeset	7 terms of the GNU General Public License as published by the Free Software
34568fab6058 Fixed package to include all required files; also added copyright preamble to all source files lost parents: 0 diff changeset	8 Foundation, either version 3 of the License, or (at your option) any later
34568fab6058 Fixed package to include all required files; also added copyright preamble to all source files lost parents: 0 diff changeset	9 version.
34568fab6058 Fixed package to include all required files; also added copyright preamble to all source files lost parents: 0 diff changeset	10
34568fab6058 Fixed package to include all required files; also added copyright preamble to all source files lost parents: 0 diff changeset	11 This program is distributed in the hope that it will be useful, but WITHOUT
34568fab6058 Fixed package to include all required files; also added copyright preamble to all source files lost parents: 0 diff changeset	12 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
34568fab6058 Fixed package to include all required files; also added copyright preamble to all source files lost parents: 0 diff changeset	13 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
34568fab6058 Fixed package to include all required files; also added copyright preamble to all source files lost parents: 0 diff changeset	14 more details.
34568fab6058 Fixed package to include all required files; also added copyright preamble to all source files lost parents: 0 diff changeset	15
34568fab6058 Fixed package to include all required files; also added copyright preamble to all source files lost parents: 0 diff changeset	16 You should have received a copy of the GNU General Public License along with
34568fab6058 Fixed package to include all required files; also added copyright preamble to all source files lost parents: 0 diff changeset	17 this program. If not, see <http://www.gnu.org/licenses/>.
34568fab6058 Fixed package to include all required files; also added copyright preamble to all source files lost parents: 0 diff changeset	18
34568fab6058 Fixed package to include all required files; also added copyright preamble to all source files lost parents: 0 diff changeset	19 Contains code for parsing general addressing modes (IMM+DIR+EXT+IND)
34568fab6058 Fixed package to include all required files; also added copyright preamble to all source files lost parents: 0 diff changeset	20 */
0 57495da01900 Initial checking of LWASM lost parents: diff changeset	21
57495da01900 Initial checking of LWASM lost parents: diff changeset	22 #include <ctype.h>
33 74a3fef7c8d0 Added general addressing modes (immediate, base page, extended, indexed) lost parents: 4 diff changeset	23 #include <stdlib.h>
74a3fef7c8d0 Added general addressing modes (immediate, base page, extended, indexed) lost parents: 4 diff changeset	24
0 57495da01900 Initial checking of LWASM lost parents: diff changeset	25 #include "lwasm.h"
57495da01900 Initial checking of LWASM lost parents: diff changeset	26 #include "instab.h"
33 74a3fef7c8d0 Added general addressing modes (immediate, base page, extended, indexed) lost parents: 4 diff changeset	27 #include "expr.h"
0 57495da01900 Initial checking of LWASM lost parents: diff changeset	28
33 74a3fef7c8d0 Added general addressing modes (immediate, base page, extended, indexed) lost parents: 4 diff changeset	29 extern void insn_indexed_aux(asmstate_t as, lwasm_line_t l, const char *p, int b1, int b2, int b3);
0 57495da01900 Initial checking of LWASM lost parents: diff changeset	30
34 b29eec6f3819 Finished adding addressing mode handlers lost parents: 33 diff changeset	31 // "extra" is required due to the way OIM, EIM, TIM, and AIM work
b29eec6f3819 Finished adding addressing mode handlers lost parents: 33 diff changeset	32 void insn_gen_aux(asmstate_t as, lwasm_line_t l, char **optr, int opnum, int extra)
0 57495da01900 Initial checking of LWASM lost parents: diff changeset	33 {
33 74a3fef7c8d0 Added general addressing modes (immediate, base page, extended, indexed) lost parents: 4 diff changeset	34 int b1 = -1, b2 = -1, b3 = -1;
74a3fef7c8d0 Added general addressing modes (immediate, base page, extended, indexed) lost parents: 4 diff changeset	35
74a3fef7c8d0 Added general addressing modes (immediate, base page, extended, indexed) lost parents: 4 diff changeset	36 const char *optr2;
0 57495da01900 Initial checking of LWASM lost parents: diff changeset	37 int v1, tv, rval;
33 74a3fef7c8d0 Added general addressing modes (immediate, base page, extended, indexed) lost parents: 4 diff changeset	38 lwasm_expr_stack_t *s;
74a3fef7c8d0 Added general addressing modes (immediate, base page, extended, indexed) lost parents: 4 diff changeset	39 int f8 = 0;
74a3fef7c8d0 Added general addressing modes (immediate, base page, extended, indexed) lost parents: 4 diff changeset	40 int f16 = 0;
65 31d8e85706e7 Implemented setdp and corrected handling of direct page detection in insn_gen_aux() lost parents: 62 diff changeset	41 int isdp = 0;
31d8e85706e7 Implemented setdp and corrected handling of direct page detection in insn_gen_aux() lost parents: 62 diff changeset	42
0 57495da01900 Initial checking of LWASM lost parents: diff changeset	43 optr2 = *optr;
57495da01900 Initial checking of LWASM lost parents: diff changeset	44 while (optr2 && !isspace(optr2) && *optr2 != ',') optr2++
33 74a3fef7c8d0 Added general addressing modes (immediate, base page, extended, indexed) lost parents: 4 diff changeset	45 /* do nothing */ ;
74a3fef7c8d0 Added general addressing modes (immediate, base page, extended, indexed) lost parents: 4 diff changeset	46
0 57495da01900 Initial checking of LWASM lost parents: diff changeset	47 if (optr2 != ',' && *optr != '[')
57495da01900 Initial checking of LWASM lost parents: diff changeset	48 {
57495da01900 Initial checking of LWASM lost parents: diff changeset	49 // not indexed
33 74a3fef7c8d0 Added general addressing modes (immediate, base page, extended, indexed) lost parents: 4 diff changeset	50 if (l -> fsize == 1)
74a3fef7c8d0 Added general addressing modes (immediate, base page, extended, indexed) lost parents: 4 diff changeset	51 f8 = 1;
74a3fef7c8d0 Added general addressing modes (immediate, base page, extended, indexed) lost parents: 4 diff changeset	52 else if (l -> fsize == 2)
74a3fef7c8d0 Added general addressing modes (immediate, base page, extended, indexed) lost parents: 4 diff changeset	53 f16 = 1;
74a3fef7c8d0 Added general addressing modes (immediate, base page, extended, indexed) lost parents: 4 diff changeset	54
0 57495da01900 Initial checking of LWASM lost parents: diff changeset	55 if (**optr == '<')
57495da01900 Initial checking of LWASM lost parents: diff changeset	56 {
57495da01900 Initial checking of LWASM lost parents: diff changeset	57 (*optr)++;
33 74a3fef7c8d0 Added general addressing modes (immediate, base page, extended, indexed) lost parents: 4 diff changeset	58 f8 = 1;
0 57495da01900 Initial checking of LWASM lost parents: diff changeset	59 }
57495da01900 Initial checking of LWASM lost parents: diff changeset	60 else if (**optr == '>')
57495da01900 Initial checking of LWASM lost parents: diff changeset	61 {
57495da01900 Initial checking of LWASM lost parents: diff changeset	62 (*optr)++;
33 74a3fef7c8d0 Added general addressing modes (immediate, base page, extended, indexed) lost parents: 4 diff changeset	63 f16 = 1;
74a3fef7c8d0 Added general addressing modes (immediate, base page, extended, indexed) lost parents: 4 diff changeset	64 }
37 538e15927776 Added symbol handling to expression subsystem; adpated instruction handlers to the new scheme; misc fixes lost parents: 34 diff changeset	65 s = lwasm_evaluate_expr(as, l, *optr, NULL);
33 74a3fef7c8d0 Added general addressing modes (immediate, base page, extended, indexed) lost parents: 4 diff changeset	66 if (!s)
74a3fef7c8d0 Added general addressing modes (immediate, base page, extended, indexed) lost parents: 4 diff changeset	67 {
74a3fef7c8d0 Added general addressing modes (immediate, base page, extended, indexed) lost parents: 4 diff changeset	68 register_error(as, l, 1, "Bad expression");
74a3fef7c8d0 Added general addressing modes (immediate, base page, extended, indexed) lost parents: 4 diff changeset	69 return;
74a3fef7c8d0 Added general addressing modes (immediate, base page, extended, indexed) lost parents: 4 diff changeset	70 }
65 31d8e85706e7 Implemented setdp and corrected handling of direct page detection in insn_gen_aux() lost parents: 62 diff changeset	71 if (!lwasm_expr_is_constant(s) && as -> passnum == 1)
33 74a3fef7c8d0 Added general addressing modes (immediate, base page, extended, indexed) lost parents: 4 diff changeset	72 {
74a3fef7c8d0 Added general addressing modes (immediate, base page, extended, indexed) lost parents: 4 diff changeset	73 f16 = 1;
74a3fef7c8d0 Added general addressing modes (immediate, base page, extended, indexed) lost parents: 4 diff changeset	74 l -> fsize = 2;
74a3fef7c8d0 Added general addressing modes (immediate, base page, extended, indexed) lost parents: 4 diff changeset	75 register_error(as, l, 2, "Incomplete reference");
74a3fef7c8d0 Added general addressing modes (immediate, base page, extended, indexed) lost parents: 4 diff changeset	76 }
74a3fef7c8d0 Added general addressing modes (immediate, base page, extended, indexed) lost parents: 4 diff changeset	77 v1 = lwasm_expr_get_value(s);
74a3fef7c8d0 Added general addressing modes (immediate, base page, extended, indexed) lost parents: 4 diff changeset	78 lwasm_expr_stack_free(s);
65 31d8e85706e7 Implemented setdp and corrected handling of direct page detection in insn_gen_aux() lost parents: 62 diff changeset	79
31d8e85706e7 Implemented setdp and corrected handling of direct page detection in insn_gen_aux() lost parents: 62 diff changeset	80 if (((v1 >> 8) & 0xff) == (as -> dpval & 0xff))
31d8e85706e7 Implemented setdp and corrected handling of direct page detection in insn_gen_aux() lost parents: 62 diff changeset	81 isdp = 1;
33 74a3fef7c8d0 Added general addressing modes (immediate, base page, extended, indexed) lost parents: 4 diff changeset	82
65 31d8e85706e7 Implemented setdp and corrected handling of direct page detection in insn_gen_aux() lost parents: 62 diff changeset	83 if (f8 \|\| (!f16 && isdp))
33 74a3fef7c8d0 Added general addressing modes (immediate, base page, extended, indexed) lost parents: 4 diff changeset	84 {
74a3fef7c8d0 Added general addressing modes (immediate, base page, extended, indexed) lost parents: 4 diff changeset	85 v1 = v1 & 0xffff;
74a3fef7c8d0 Added general addressing modes (immediate, base page, extended, indexed) lost parents: 4 diff changeset	86 tv = v1 - ((as -> dpval) << 8);
74a3fef7c8d0 Added general addressing modes (immediate, base page, extended, indexed) lost parents: 4 diff changeset	87 if (tv < 0 \|\| tv > 0xff)
74a3fef7c8d0 Added general addressing modes (immediate, base page, extended, indexed) lost parents: 4 diff changeset	88 {
74a3fef7c8d0 Added general addressing modes (immediate, base page, extended, indexed) lost parents: 4 diff changeset	89 register_error(as, l, 2, "Byte overflow");
74a3fef7c8d0 Added general addressing modes (immediate, base page, extended, indexed) lost parents: 4 diff changeset	90 }
74a3fef7c8d0 Added general addressing modes (immediate, base page, extended, indexed) lost parents: 4 diff changeset	91 v1 = v1 & 0xff;
74a3fef7c8d0 Added general addressing modes (immediate, base page, extended, indexed) lost parents: 4 diff changeset	92 lwasm_emitop(as, l, instab[opnum].ops[0]);
34 b29eec6f3819 Finished adding addressing mode handlers lost parents: 33 diff changeset	93 if (extra != -1)
b29eec6f3819 Finished adding addressing mode handlers lost parents: 33 diff changeset	94 lwasm_emit(as, l, extra);
33 74a3fef7c8d0 Added general addressing modes (immediate, base page, extended, indexed) lost parents: 4 diff changeset	95 lwasm_emit(as, l, v1 & 0xff);
74a3fef7c8d0 Added general addressing modes (immediate, base page, extended, indexed) lost parents: 4 diff changeset	96 return;
0 57495da01900 Initial checking of LWASM lost parents: diff changeset	97 }
57495da01900 Initial checking of LWASM lost parents: diff changeset	98 else
57495da01900 Initial checking of LWASM lost parents: diff changeset	99 {
33 74a3fef7c8d0 Added general addressing modes (immediate, base page, extended, indexed) lost parents: 4 diff changeset	100 // everything else is 16 bit....
74a3fef7c8d0 Added general addressing modes (immediate, base page, extended, indexed) lost parents: 4 diff changeset	101 lwasm_emitop(as, l, instab[opnum].ops[2]);
34 b29eec6f3819 Finished adding addressing mode handlers lost parents: 33 diff changeset	102 if (extra != -1)
b29eec6f3819 Finished adding addressing mode handlers lost parents: 33 diff changeset	103 lwasm_emit(as, l, extra);
33 74a3fef7c8d0 Added general addressing modes (immediate, base page, extended, indexed) lost parents: 4 diff changeset	104 lwasm_emit(as, l, v1 >> 8);
74a3fef7c8d0 Added general addressing modes (immediate, base page, extended, indexed) lost parents: 4 diff changeset	105 lwasm_emit(as, l, v1 & 0xff);
74a3fef7c8d0 Added general addressing modes (immediate, base page, extended, indexed) lost parents: 4 diff changeset	106 return;
0 57495da01900 Initial checking of LWASM lost parents: diff changeset	107 }
57495da01900 Initial checking of LWASM lost parents: diff changeset	108 }
57495da01900 Initial checking of LWASM lost parents: diff changeset	109
33 74a3fef7c8d0 Added general addressing modes (immediate, base page, extended, indexed) lost parents: 4 diff changeset	110 lwasm_emitop(as, l, instab[opnum].ops[1]);
34 b29eec6f3819 Finished adding addressing mode handlers lost parents: 33 diff changeset	111 if (extra != -1)
b29eec6f3819 Finished adding addressing mode handlers lost parents: 33 diff changeset	112 lwasm_emit(as, l, extra);
33 74a3fef7c8d0 Added general addressing modes (immediate, base page, extended, indexed) lost parents: 4 diff changeset	113 insn_indexed_aux(as, l, (const char **)optr, &b1, &b2, &b3);
74a3fef7c8d0 Added general addressing modes (immediate, base page, extended, indexed) lost parents: 4 diff changeset	114 if (b1 != -1)
74a3fef7c8d0 Added general addressing modes (immediate, base page, extended, indexed) lost parents: 4 diff changeset	115 lwasm_emit(as, l, b1);
74a3fef7c8d0 Added general addressing modes (immediate, base page, extended, indexed) lost parents: 4 diff changeset	116 if (b2 != -1)
74a3fef7c8d0 Added general addressing modes (immediate, base page, extended, indexed) lost parents: 4 diff changeset	117 lwasm_emit(as, l, b2);
74a3fef7c8d0 Added general addressing modes (immediate, base page, extended, indexed) lost parents: 4 diff changeset	118 if (b3 != -1)
74a3fef7c8d0 Added general addressing modes (immediate, base page, extended, indexed) lost parents: 4 diff changeset	119 lwasm_emit(as, l, b3);
0 57495da01900 Initial checking of LWASM lost parents: diff changeset	120 return;
57495da01900 Initial checking of LWASM lost parents: diff changeset	121 }
57495da01900 Initial checking of LWASM lost parents: diff changeset	122
33 74a3fef7c8d0 Added general addressing modes (immediate, base page, extended, indexed) lost parents: 4 diff changeset	123 // the various insn_gen? functions have an immediate mode of ? bits
74a3fef7c8d0 Added general addressing modes (immediate, base page, extended, indexed) lost parents: 4 diff changeset	124 OPFUNC(insn_gen0)
0 57495da01900 Initial checking of LWASM lost parents: diff changeset	125 {
33 74a3fef7c8d0 Added general addressing modes (immediate, base page, extended, indexed) lost parents: 4 diff changeset	126 if (**p == '#')
74a3fef7c8d0 Added general addressing modes (immediate, base page, extended, indexed) lost parents: 4 diff changeset	127 {
74a3fef7c8d0 Added general addressing modes (immediate, base page, extended, indexed) lost parents: 4 diff changeset	128 register_error(as, l, 1, "Immediate mode not allowed");
74a3fef7c8d0 Added general addressing modes (immediate, base page, extended, indexed) lost parents: 4 diff changeset	129 return;
74a3fef7c8d0 Added general addressing modes (immediate, base page, extended, indexed) lost parents: 4 diff changeset	130 }
74a3fef7c8d0 Added general addressing modes (immediate, base page, extended, indexed) lost parents: 4 diff changeset	131
74a3fef7c8d0 Added general addressing modes (immediate, base page, extended, indexed) lost parents: 4 diff changeset	132 // handle non-immediate
34 b29eec6f3819 Finished adding addressing mode handlers lost parents: 33 diff changeset	133 insn_gen_aux(as, l, p, opnum, -1);
33 74a3fef7c8d0 Added general addressing modes (immediate, base page, extended, indexed) lost parents: 4 diff changeset	134 }
74a3fef7c8d0 Added general addressing modes (immediate, base page, extended, indexed) lost parents: 4 diff changeset	135
74a3fef7c8d0 Added general addressing modes (immediate, base page, extended, indexed) lost parents: 4 diff changeset	136 OPFUNC(insn_gen8)
74a3fef7c8d0 Added general addressing modes (immediate, base page, extended, indexed) lost parents: 4 diff changeset	137 {
0 57495da01900 Initial checking of LWASM lost parents: diff changeset	138 int rval;
33 74a3fef7c8d0 Added general addressing modes (immediate, base page, extended, indexed) lost parents: 4 diff changeset	139
74a3fef7c8d0 Added general addressing modes (immediate, base page, extended, indexed) lost parents: 4 diff changeset	140 if (**p == '#')
0 57495da01900 Initial checking of LWASM lost parents: diff changeset	141 {
33 74a3fef7c8d0 Added general addressing modes (immediate, base page, extended, indexed) lost parents: 4 diff changeset	142 lwasm_emitop(as, l, instab[opnum].ops[3]);
74a3fef7c8d0 Added general addressing modes (immediate, base page, extended, indexed) lost parents: 4 diff changeset	143 (*p)++;
62 da1337724ecd Moved insn_gen8 to simplified expression evaluator lost parents: 37 diff changeset	144 if (lwasm_expr_result(as, l, p, EXPR_PASS2CONST \| EXPR_BYTE, &rval) < 0)
33 74a3fef7c8d0 Added general addressing modes (immediate, base page, extended, indexed) lost parents: 4 diff changeset	145 rval = 0;
74a3fef7c8d0 Added general addressing modes (immediate, base page, extended, indexed) lost parents: 4 diff changeset	146 lwasm_emit(as, l, rval & 0xff);
0 57495da01900 Initial checking of LWASM lost parents: diff changeset	147 return;
57495da01900 Initial checking of LWASM lost parents: diff changeset	148 }
33 74a3fef7c8d0 Added general addressing modes (immediate, base page, extended, indexed) lost parents: 4 diff changeset	149
34 b29eec6f3819 Finished adding addressing mode handlers lost parents: 33 diff changeset	150 insn_gen_aux(as, l, p, opnum, -1);
33 74a3fef7c8d0 Added general addressing modes (immediate, base page, extended, indexed) lost parents: 4 diff changeset	151 }
74a3fef7c8d0 Added general addressing modes (immediate, base page, extended, indexed) lost parents: 4 diff changeset	152
74a3fef7c8d0 Added general addressing modes (immediate, base page, extended, indexed) lost parents: 4 diff changeset	153 OPFUNC(insn_gen16)
74a3fef7c8d0 Added general addressing modes (immediate, base page, extended, indexed) lost parents: 4 diff changeset	154 {
74a3fef7c8d0 Added general addressing modes (immediate, base page, extended, indexed) lost parents: 4 diff changeset	155 lwasm_expr_stack_t *s;
74a3fef7c8d0 Added general addressing modes (immediate, base page, extended, indexed) lost parents: 4 diff changeset	156 int rval;
74a3fef7c8d0 Added general addressing modes (immediate, base page, extended, indexed) lost parents: 4 diff changeset	157
74a3fef7c8d0 Added general addressing modes (immediate, base page, extended, indexed) lost parents: 4 diff changeset	158 if (**p == '#')
74a3fef7c8d0 Added general addressing modes (immediate, base page, extended, indexed) lost parents: 4 diff changeset	159 {
74a3fef7c8d0 Added general addressing modes (immediate, base page, extended, indexed) lost parents: 4 diff changeset	160 lwasm_emitop(as, l, instab[opnum].ops[3]);
74a3fef7c8d0 Added general addressing modes (immediate, base page, extended, indexed) lost parents: 4 diff changeset	161 (*p)++;
37 538e15927776 Added symbol handling to expression subsystem; adpated instruction handlers to the new scheme; misc fixes lost parents: 34 diff changeset	162 s = lwasm_evaluate_expr(as, l, *p, NULL);
33 74a3fef7c8d0 Added general addressing modes (immediate, base page, extended, indexed) lost parents: 4 diff changeset	163 if (!s)
74a3fef7c8d0 Added general addressing modes (immediate, base page, extended, indexed) lost parents: 4 diff changeset	164 {
74a3fef7c8d0 Added general addressing modes (immediate, base page, extended, indexed) lost parents: 4 diff changeset	165 register_error(as, l, 1, "Bad expression");
74a3fef7c8d0 Added general addressing modes (immediate, base page, extended, indexed) lost parents: 4 diff changeset	166 rval = 0;
74a3fef7c8d0 Added general addressing modes (immediate, base page, extended, indexed) lost parents: 4 diff changeset	167 }
74a3fef7c8d0 Added general addressing modes (immediate, base page, extended, indexed) lost parents: 4 diff changeset	168 else
74a3fef7c8d0 Added general addressing modes (immediate, base page, extended, indexed) lost parents: 4 diff changeset	169 {
74a3fef7c8d0 Added general addressing modes (immediate, base page, extended, indexed) lost parents: 4 diff changeset	170 if (!lwasm_expr_is_constant(s))
74a3fef7c8d0 Added general addressing modes (immediate, base page, extended, indexed) lost parents: 4 diff changeset	171 register_error(as, l, 2, "Incomplete reference");
74a3fef7c8d0 Added general addressing modes (immediate, base page, extended, indexed) lost parents: 4 diff changeset	172 rval = lwasm_expr_get_value(s);
74a3fef7c8d0 Added general addressing modes (immediate, base page, extended, indexed) lost parents: 4 diff changeset	173 lwasm_expr_stack_free(s);
74a3fef7c8d0 Added general addressing modes (immediate, base page, extended, indexed) lost parents: 4 diff changeset	174 }
74a3fef7c8d0 Added general addressing modes (immediate, base page, extended, indexed) lost parents: 4 diff changeset	175 lwasm_emit(as, l, (rval >> 8) & 0xff);
74a3fef7c8d0 Added general addressing modes (immediate, base page, extended, indexed) lost parents: 4 diff changeset	176 lwasm_emit(as, l, rval & 0xff);
74a3fef7c8d0 Added general addressing modes (immediate, base page, extended, indexed) lost parents: 4 diff changeset	177 return;
74a3fef7c8d0 Added general addressing modes (immediate, base page, extended, indexed) lost parents: 4 diff changeset	178 }
74a3fef7c8d0 Added general addressing modes (immediate, base page, extended, indexed) lost parents: 4 diff changeset	179
34 b29eec6f3819 Finished adding addressing mode handlers lost parents: 33 diff changeset	180 insn_gen_aux(as, l, p, opnum, -1);
33 74a3fef7c8d0 Added general addressing modes (immediate, base page, extended, indexed) lost parents: 4 diff changeset	181 }
74a3fef7c8d0 Added general addressing modes (immediate, base page, extended, indexed) lost parents: 4 diff changeset	182
74a3fef7c8d0 Added general addressing modes (immediate, base page, extended, indexed) lost parents: 4 diff changeset	183 OPFUNC(insn_gen32)
74a3fef7c8d0 Added general addressing modes (immediate, base page, extended, indexed) lost parents: 4 diff changeset	184 {
74a3fef7c8d0 Added general addressing modes (immediate, base page, extended, indexed) lost parents: 4 diff changeset	185 lwasm_expr_stack_t *s;
74a3fef7c8d0 Added general addressing modes (immediate, base page, extended, indexed) lost parents: 4 diff changeset	186 int rval;
74a3fef7c8d0 Added general addressing modes (immediate, base page, extended, indexed) lost parents: 4 diff changeset	187
74a3fef7c8d0 Added general addressing modes (immediate, base page, extended, indexed) lost parents: 4 diff changeset	188 if (**p == '#')
0 57495da01900 Initial checking of LWASM lost parents: diff changeset	189 {
33 74a3fef7c8d0 Added general addressing modes (immediate, base page, extended, indexed) lost parents: 4 diff changeset	190 lwasm_emitop(as, l, instab[opnum].ops[3]);
74a3fef7c8d0 Added general addressing modes (immediate, base page, extended, indexed) lost parents: 4 diff changeset	191 (*p)++;
37 538e15927776 Added symbol handling to expression subsystem; adpated instruction handlers to the new scheme; misc fixes lost parents: 34 diff changeset	192 s = lwasm_evaluate_expr(as, l, *p, NULL);
33 74a3fef7c8d0 Added general addressing modes (immediate, base page, extended, indexed) lost parents: 4 diff changeset	193 if (!s)
74a3fef7c8d0 Added general addressing modes (immediate, base page, extended, indexed) lost parents: 4 diff changeset	194 {
74a3fef7c8d0 Added general addressing modes (immediate, base page, extended, indexed) lost parents: 4 diff changeset	195 register_error(as, l, 1, "Bad expression");
74a3fef7c8d0 Added general addressing modes (immediate, base page, extended, indexed) lost parents: 4 diff changeset	196 rval = 0;
74a3fef7c8d0 Added general addressing modes (immediate, base page, extended, indexed) lost parents: 4 diff changeset	197 }
74a3fef7c8d0 Added general addressing modes (immediate, base page, extended, indexed) lost parents: 4 diff changeset	198 else
74a3fef7c8d0 Added general addressing modes (immediate, base page, extended, indexed) lost parents: 4 diff changeset	199 {
74a3fef7c8d0 Added general addressing modes (immediate, base page, extended, indexed) lost parents: 4 diff changeset	200 if (!lwasm_expr_is_constant(s))
74a3fef7c8d0 Added general addressing modes (immediate, base page, extended, indexed) lost parents: 4 diff changeset	201 register_error(as, l, 2, "Incomplete reference");
74a3fef7c8d0 Added general addressing modes (immediate, base page, extended, indexed) lost parents: 4 diff changeset	202 rval = lwasm_expr_get_value(s);
74a3fef7c8d0 Added general addressing modes (immediate, base page, extended, indexed) lost parents: 4 diff changeset	203 lwasm_expr_stack_free(s);
74a3fef7c8d0 Added general addressing modes (immediate, base page, extended, indexed) lost parents: 4 diff changeset	204 }
74a3fef7c8d0 Added general addressing modes (immediate, base page, extended, indexed) lost parents: 4 diff changeset	205 lwasm_emit(as, l, (rval >> 24) & 0xff);
74a3fef7c8d0 Added general addressing modes (immediate, base page, extended, indexed) lost parents: 4 diff changeset	206 lwasm_emit(as, l, (rval >> 16) & 0xff);
74a3fef7c8d0 Added general addressing modes (immediate, base page, extended, indexed) lost parents: 4 diff changeset	207 lwasm_emit(as, l, (rval >> 8) & 0xff);
74a3fef7c8d0 Added general addressing modes (immediate, base page, extended, indexed) lost parents: 4 diff changeset	208 lwasm_emit(as, l, rval & 0xff);
74a3fef7c8d0 Added general addressing modes (immediate, base page, extended, indexed) lost parents: 4 diff changeset	209 return;
74a3fef7c8d0 Added general addressing modes (immediate, base page, extended, indexed) lost parents: 4 diff changeset	210 }
74a3fef7c8d0 Added general addressing modes (immediate, base page, extended, indexed) lost parents: 4 diff changeset	211
34 b29eec6f3819 Finished adding addressing mode handlers lost parents: 33 diff changeset	212 insn_gen_aux(as, l, p, opnum, -1);
33 74a3fef7c8d0 Added general addressing modes (immediate, base page, extended, indexed) lost parents: 4 diff changeset	213 }
74a3fef7c8d0 Added general addressing modes (immediate, base page, extended, indexed) lost parents: 4 diff changeset	214
74a3fef7c8d0 Added general addressing modes (immediate, base page, extended, indexed) lost parents: 4 diff changeset	215 OPFUNC(insn_imm8)
74a3fef7c8d0 Added general addressing modes (immediate, base page, extended, indexed) lost parents: 4 diff changeset	216 {
74a3fef7c8d0 Added general addressing modes (immediate, base page, extended, indexed) lost parents: 4 diff changeset	217 lwasm_expr_stack_t *s;
74a3fef7c8d0 Added general addressing modes (immediate, base page, extended, indexed) lost parents: 4 diff changeset	218 int rval;
74a3fef7c8d0 Added general addressing modes (immediate, base page, extended, indexed) lost parents: 4 diff changeset	219
74a3fef7c8d0 Added general addressing modes (immediate, base page, extended, indexed) lost parents: 4 diff changeset	220 if (**p == '#')
74a3fef7c8d0 Added general addressing modes (immediate, base page, extended, indexed) lost parents: 4 diff changeset	221 {
74a3fef7c8d0 Added general addressing modes (immediate, base page, extended, indexed) lost parents: 4 diff changeset	222 lwasm_emitop(as, l, instab[opnum].ops[0]);
74a3fef7c8d0 Added general addressing modes (immediate, base page, extended, indexed) lost parents: 4 diff changeset	223 (*p)++;
37 538e15927776 Added symbol handling to expression subsystem; adpated instruction handlers to the new scheme; misc fixes lost parents: 34 diff changeset	224 s = lwasm_evaluate_expr(as, l, *p, NULL);
33 74a3fef7c8d0 Added general addressing modes (immediate, base page, extended, indexed) lost parents: 4 diff changeset	225 if (!s)
74a3fef7c8d0 Added general addressing modes (immediate, base page, extended, indexed) lost parents: 4 diff changeset	226 {
74a3fef7c8d0 Added general addressing modes (immediate, base page, extended, indexed) lost parents: 4 diff changeset	227 register_error(as, l, 1, "Bad expression");
74a3fef7c8d0 Added general addressing modes (immediate, base page, extended, indexed) lost parents: 4 diff changeset	228 rval = 0;
74a3fef7c8d0 Added general addressing modes (immediate, base page, extended, indexed) lost parents: 4 diff changeset	229 }
74a3fef7c8d0 Added general addressing modes (immediate, base page, extended, indexed) lost parents: 4 diff changeset	230 else
74a3fef7c8d0 Added general addressing modes (immediate, base page, extended, indexed) lost parents: 4 diff changeset	231 {
74a3fef7c8d0 Added general addressing modes (immediate, base page, extended, indexed) lost parents: 4 diff changeset	232 if (!lwasm_expr_is_constant(s))
74a3fef7c8d0 Added general addressing modes (immediate, base page, extended, indexed) lost parents: 4 diff changeset	233 register_error(as, l, 2, "Incomplete reference");
74a3fef7c8d0 Added general addressing modes (immediate, base page, extended, indexed) lost parents: 4 diff changeset	234 rval = lwasm_expr_get_value(s);
74a3fef7c8d0 Added general addressing modes (immediate, base page, extended, indexed) lost parents: 4 diff changeset	235 lwasm_expr_stack_free(s);
74a3fef7c8d0 Added general addressing modes (immediate, base page, extended, indexed) lost parents: 4 diff changeset	236 }
74a3fef7c8d0 Added general addressing modes (immediate, base page, extended, indexed) lost parents: 4 diff changeset	237 if (rval < -128 \|\| rval > 255)
74a3fef7c8d0 Added general addressing modes (immediate, base page, extended, indexed) lost parents: 4 diff changeset	238 register_error(as, l, 2, "Byte overflow");
74a3fef7c8d0 Added general addressing modes (immediate, base page, extended, indexed) lost parents: 4 diff changeset	239 lwasm_emit(as, l, rval & 0xff);
0 57495da01900 Initial checking of LWASM lost parents: diff changeset	240 return;
57495da01900 Initial checking of LWASM lost parents: diff changeset	241 }
57495da01900 Initial checking of LWASM lost parents: diff changeset	242
33 74a3fef7c8d0 Added general addressing modes (immediate, base page, extended, indexed) lost parents: 4 diff changeset	243 register_error(as, l, 1, "Bad operand");
0 57495da01900 Initial checking of LWASM lost parents: diff changeset	244 }

Mercurial > hg-old > index.cgi

annotate src/insn_gen.c @ 65:31d8e85706e7