LWTools Old Repo: src/insn

annotate src/insn_gen.c @ 96:7fbccdd1defb

Added doc subdirectory to distribution

author	lost
date	Sat, 17 Jan 2009 07:09:02 +0000
parents	a338d496350e
children	81fc353d4d69

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;
77 a338d496350e Checkpointing conversion to allow object target lost parents: 65 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 }
77 a338d496350e Checkpointing conversion to allow object target lost parents: 65 diff changeset	65 rval = lwasm_expr_result2(as, l, optr, 0, &v1, 0);
a338d496350e Checkpointing conversion to allow object target lost parents: 65 diff changeset	66 if (rval != 0)
33 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 f16 = 1;
77 a338d496350e Checkpointing conversion to allow object target lost parents: 65 diff changeset	69 v1 = 0;
33 74a3fef7c8d0 Added general addressing modes (immediate, base page, extended, indexed) lost parents: 4 diff changeset	70 l -> fsize = 2;
74a3fef7c8d0 Added general addressing modes (immediate, base page, extended, indexed) lost parents: 4 diff changeset	71 }
65 31d8e85706e7 Implemented setdp and corrected handling of direct page detection in insn_gen_aux() lost parents: 62 diff changeset	72
31d8e85706e7 Implemented setdp and corrected handling of direct page detection in insn_gen_aux() lost parents: 62 diff changeset	73 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	74 isdp = 1;
33 74a3fef7c8d0 Added general addressing modes (immediate, base page, extended, indexed) lost parents: 4 diff changeset	75
77 a338d496350e Checkpointing conversion to allow object target lost parents: 65 diff changeset	76 // disallow non-explicit DP in obj target
a338d496350e Checkpointing conversion to allow object target lost parents: 65 diff changeset	77 if (as -> outformat == OUTPUT_OBJ && !f8)
a338d496350e Checkpointing conversion to allow object target lost parents: 65 diff changeset	78 f16 = 1;
a338d496350e Checkpointing conversion to allow object target lost parents: 65 diff changeset	79
65 31d8e85706e7 Implemented setdp and corrected handling of direct page detection in insn_gen_aux() lost parents: 62 diff changeset	80 if (f8 \|\| (!f16 && isdp))
33 74a3fef7c8d0 Added general addressing modes (immediate, base page, extended, indexed) lost parents: 4 diff changeset	81 {
74a3fef7c8d0 Added general addressing modes (immediate, base page, extended, indexed) lost parents: 4 diff changeset	82 v1 = v1 & 0xffff;
74a3fef7c8d0 Added general addressing modes (immediate, base page, extended, indexed) lost parents: 4 diff changeset	83 tv = v1 - ((as -> dpval) << 8);
74a3fef7c8d0 Added general addressing modes (immediate, base page, extended, indexed) lost parents: 4 diff changeset	84 if (tv < 0 \|\| tv > 0xff)
74a3fef7c8d0 Added general addressing modes (immediate, base page, extended, indexed) lost parents: 4 diff changeset	85 {
74a3fef7c8d0 Added general addressing modes (immediate, base page, extended, indexed) lost parents: 4 diff changeset	86 register_error(as, l, 2, "Byte overflow");
74a3fef7c8d0 Added general addressing modes (immediate, base page, extended, indexed) lost parents: 4 diff changeset	87 }
74a3fef7c8d0 Added general addressing modes (immediate, base page, extended, indexed) lost parents: 4 diff changeset	88 v1 = v1 & 0xff;
74a3fef7c8d0 Added general addressing modes (immediate, base page, extended, indexed) lost parents: 4 diff changeset	89 lwasm_emitop(as, l, instab[opnum].ops[0]);
34 b29eec6f3819 Finished adding addressing mode handlers lost parents: 33 diff changeset	90 if (extra != -1)
b29eec6f3819 Finished adding addressing mode handlers lost parents: 33 diff changeset	91 lwasm_emit(as, l, extra);
33 74a3fef7c8d0 Added general addressing modes (immediate, base page, extended, indexed) lost parents: 4 diff changeset	92 lwasm_emit(as, l, v1 & 0xff);
74a3fef7c8d0 Added general addressing modes (immediate, base page, extended, indexed) lost parents: 4 diff changeset	93 return;
0 57495da01900 Initial checking of LWASM lost parents: diff changeset	94 }
57495da01900 Initial checking of LWASM lost parents: diff changeset	95 else
57495da01900 Initial checking of LWASM lost parents: diff changeset	96 {
33 74a3fef7c8d0 Added general addressing modes (immediate, base page, extended, indexed) lost parents: 4 diff changeset	97 // everything else is 16 bit....
74a3fef7c8d0 Added general addressing modes (immediate, base page, extended, indexed) lost parents: 4 diff changeset	98 lwasm_emitop(as, l, instab[opnum].ops[2]);
34 b29eec6f3819 Finished adding addressing mode handlers lost parents: 33 diff changeset	99 if (extra != -1)
b29eec6f3819 Finished adding addressing mode handlers lost parents: 33 diff changeset	100 lwasm_emit(as, l, extra);
77 a338d496350e Checkpointing conversion to allow object target lost parents: 65 diff changeset	101 l -> relocoff = as -> addr - l -> codeaddr;
33 74a3fef7c8d0 Added general addressing modes (immediate, base page, extended, indexed) lost parents: 4 diff changeset	102 lwasm_emit(as, l, v1 >> 8);
74a3fef7c8d0 Added general addressing modes (immediate, base page, extended, indexed) lost parents: 4 diff changeset	103 lwasm_emit(as, l, v1 & 0xff);
74a3fef7c8d0 Added general addressing modes (immediate, base page, extended, indexed) lost parents: 4 diff changeset	104 return;
0 57495da01900 Initial checking of LWASM lost parents: diff changeset	105 }
57495da01900 Initial checking of LWASM lost parents: diff changeset	106 }
57495da01900 Initial checking of LWASM lost parents: diff changeset	107
33 74a3fef7c8d0 Added general addressing modes (immediate, base page, extended, indexed) lost parents: 4 diff changeset	108 lwasm_emitop(as, l, instab[opnum].ops[1]);
34 b29eec6f3819 Finished adding addressing mode handlers lost parents: 33 diff changeset	109 if (extra != -1)
b29eec6f3819 Finished adding addressing mode handlers lost parents: 33 diff changeset	110 lwasm_emit(as, l, extra);
33 74a3fef7c8d0 Added general addressing modes (immediate, base page, extended, indexed) lost parents: 4 diff changeset	111 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	112 if (b1 != -1)
74a3fef7c8d0 Added general addressing modes (immediate, base page, extended, indexed) lost parents: 4 diff changeset	113 lwasm_emit(as, l, b1);
74a3fef7c8d0 Added general addressing modes (immediate, base page, extended, indexed) lost parents: 4 diff changeset	114 if (b2 != -1)
74a3fef7c8d0 Added general addressing modes (immediate, base page, extended, indexed) lost parents: 4 diff changeset	115 lwasm_emit(as, l, b2);
74a3fef7c8d0 Added general addressing modes (immediate, base page, extended, indexed) lost parents: 4 diff changeset	116 if (b3 != -1)
74a3fef7c8d0 Added general addressing modes (immediate, base page, extended, indexed) lost parents: 4 diff changeset	117 lwasm_emit(as, l, b3);
0 57495da01900 Initial checking of LWASM lost parents: diff changeset	118 return;
57495da01900 Initial checking of LWASM lost parents: diff changeset	119 }
57495da01900 Initial checking of LWASM lost parents: diff changeset	120
33 74a3fef7c8d0 Added general addressing modes (immediate, base page, extended, indexed) lost parents: 4 diff changeset	121 // 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	122 OPFUNC(insn_gen0)
0 57495da01900 Initial checking of LWASM lost parents: diff changeset	123 {
33 74a3fef7c8d0 Added general addressing modes (immediate, base page, extended, indexed) lost parents: 4 diff changeset	124 if (**p == '#')
74a3fef7c8d0 Added general addressing modes (immediate, base page, extended, indexed) lost parents: 4 diff changeset	125 {
74a3fef7c8d0 Added general addressing modes (immediate, base page, extended, indexed) lost parents: 4 diff changeset	126 register_error(as, l, 1, "Immediate mode not allowed");
74a3fef7c8d0 Added general addressing modes (immediate, base page, extended, indexed) lost parents: 4 diff changeset	127 return;
74a3fef7c8d0 Added general addressing modes (immediate, base page, extended, indexed) lost parents: 4 diff changeset	128 }
74a3fef7c8d0 Added general addressing modes (immediate, base page, extended, indexed) lost parents: 4 diff changeset	129
74a3fef7c8d0 Added general addressing modes (immediate, base page, extended, indexed) lost parents: 4 diff changeset	130 // handle non-immediate
34 b29eec6f3819 Finished adding addressing mode handlers lost parents: 33 diff changeset	131 insn_gen_aux(as, l, p, opnum, -1);
33 74a3fef7c8d0 Added general addressing modes (immediate, base page, extended, indexed) lost parents: 4 diff changeset	132 }
74a3fef7c8d0 Added general addressing modes (immediate, base page, extended, indexed) lost parents: 4 diff changeset	133
74a3fef7c8d0 Added general addressing modes (immediate, base page, extended, indexed) lost parents: 4 diff changeset	134 OPFUNC(insn_gen8)
74a3fef7c8d0 Added general addressing modes (immediate, base page, extended, indexed) lost parents: 4 diff changeset	135 {
0 57495da01900 Initial checking of LWASM lost parents: diff changeset	136 int rval;
77 a338d496350e Checkpointing conversion to allow object target lost parents: 65 diff changeset	137 int r;
33 74a3fef7c8d0 Added general addressing modes (immediate, base page, extended, indexed) lost parents: 4 diff changeset	138
74a3fef7c8d0 Added general addressing modes (immediate, base page, extended, indexed) lost parents: 4 diff changeset	139 if (**p == '#')
0 57495da01900 Initial checking of LWASM lost parents: diff changeset	140 {
33 74a3fef7c8d0 Added general addressing modes (immediate, base page, extended, indexed) lost parents: 4 diff changeset	141 lwasm_emitop(as, l, instab[opnum].ops[3]);
74a3fef7c8d0 Added general addressing modes (immediate, base page, extended, indexed) lost parents: 4 diff changeset	142 (*p)++;
77 a338d496350e Checkpointing conversion to allow object target lost parents: 65 diff changeset	143 r = lwasm_expr_result2(as, l, p, EXPR_PASS2CONST \| EXPR_BYTE, &rval, 0);
a338d496350e Checkpointing conversion to allow object target lost parents: 65 diff changeset	144 if (r != 0)
33 74a3fef7c8d0 Added general addressing modes (immediate, base page, extended, indexed) lost parents: 4 diff changeset	145 rval = 0;
77 a338d496350e Checkpointing conversion to allow object target lost parents: 65 diff changeset	146 if (r == 1 && as -> passnum == 2)
a338d496350e Checkpointing conversion to allow object target lost parents: 65 diff changeset	147 register_error(as, l, 2, "Illegal external or intersegment reference");
33 74a3fef7c8d0 Added general addressing modes (immediate, base page, extended, indexed) lost parents: 4 diff changeset	148 lwasm_emit(as, l, rval & 0xff);
0 57495da01900 Initial checking of LWASM lost parents: diff changeset	149 return;
57495da01900 Initial checking of LWASM lost parents: diff changeset	150 }
33 74a3fef7c8d0 Added general addressing modes (immediate, base page, extended, indexed) lost parents: 4 diff changeset	151
34 b29eec6f3819 Finished adding addressing mode handlers lost parents: 33 diff changeset	152 insn_gen_aux(as, l, p, opnum, -1);
33 74a3fef7c8d0 Added general addressing modes (immediate, base page, extended, indexed) lost parents: 4 diff changeset	153 }
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 OPFUNC(insn_gen16)
74a3fef7c8d0 Added general addressing modes (immediate, base page, extended, indexed) lost parents: 4 diff changeset	156 {
77 a338d496350e Checkpointing conversion to allow object target lost parents: 65 diff changeset	157 int rval, r;
33 74a3fef7c8d0 Added general addressing modes (immediate, base page, extended, indexed) lost parents: 4 diff changeset	158
74a3fef7c8d0 Added general addressing modes (immediate, base page, extended, indexed) lost parents: 4 diff changeset	159 if (**p == '#')
74a3fef7c8d0 Added general addressing modes (immediate, base page, extended, indexed) lost parents: 4 diff changeset	160 {
74a3fef7c8d0 Added general addressing modes (immediate, base page, extended, indexed) lost parents: 4 diff changeset	161 lwasm_emitop(as, l, instab[opnum].ops[3]);
74a3fef7c8d0 Added general addressing modes (immediate, base page, extended, indexed) lost parents: 4 diff changeset	162 (*p)++;
77 a338d496350e Checkpointing conversion to allow object target lost parents: 65 diff changeset	163
a338d496350e Checkpointing conversion to allow object target lost parents: 65 diff changeset	164 r = lwasm_expr_result2(as, l, p, 0, &rval, 0);
a338d496350e Checkpointing conversion to allow object target lost parents: 65 diff changeset	165 if (r != 0)
33 74a3fef7c8d0 Added general addressing modes (immediate, base page, extended, indexed) lost parents: 4 diff changeset	166 rval = 0;
77 a338d496350e Checkpointing conversion to allow object target lost parents: 65 diff changeset	167 if (r == 1 && as -> passnum == 2)
33 74a3fef7c8d0 Added general addressing modes (immediate, base page, extended, indexed) lost parents: 4 diff changeset	168 {
77 a338d496350e Checkpointing conversion to allow object target lost parents: 65 diff changeset	169 l -> relocoff = as -> addr - l -> codeaddr;
33 74a3fef7c8d0 Added general addressing modes (immediate, base page, extended, indexed) lost parents: 4 diff changeset	170 }
74a3fef7c8d0 Added general addressing modes (immediate, base page, extended, indexed) lost parents: 4 diff changeset	171 lwasm_emit(as, l, (rval >> 8) & 0xff);
74a3fef7c8d0 Added general addressing modes (immediate, base page, extended, indexed) lost parents: 4 diff changeset	172 lwasm_emit(as, l, rval & 0xff);
74a3fef7c8d0 Added general addressing modes (immediate, base page, extended, indexed) lost parents: 4 diff changeset	173 return;
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
34 b29eec6f3819 Finished adding addressing mode handlers lost parents: 33 diff changeset	176 insn_gen_aux(as, l, p, opnum, -1);
33 74a3fef7c8d0 Added general addressing modes (immediate, base page, extended, indexed) lost parents: 4 diff changeset	177 }
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 OPFUNC(insn_gen32)
74a3fef7c8d0 Added general addressing modes (immediate, base page, extended, indexed) lost parents: 4 diff changeset	180 {
77 a338d496350e Checkpointing conversion to allow object target lost parents: 65 diff changeset	181 int r, rval;
33 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 if (**p == '#')
0 57495da01900 Initial checking of LWASM lost parents: diff changeset	184 {
33 74a3fef7c8d0 Added general addressing modes (immediate, base page, extended, indexed) lost parents: 4 diff changeset	185 lwasm_emitop(as, l, instab[opnum].ops[3]);
74a3fef7c8d0 Added general addressing modes (immediate, base page, extended, indexed) lost parents: 4 diff changeset	186 (*p)++;
77 a338d496350e Checkpointing conversion to allow object target lost parents: 65 diff changeset	187
a338d496350e Checkpointing conversion to allow object target lost parents: 65 diff changeset	188 r = lwasm_expr_result2(as, l, p, 0, &rval, 0);
a338d496350e Checkpointing conversion to allow object target lost parents: 65 diff changeset	189 if (r != 0)
a338d496350e Checkpointing conversion to allow object target lost parents: 65 diff changeset	190 rval = 0;
a338d496350e Checkpointing conversion to allow object target lost parents: 65 diff changeset	191 if (r == 1 && as -> passnum == 2)
33 74a3fef7c8d0 Added general addressing modes (immediate, base page, extended, indexed) lost parents: 4 diff changeset	192 {
77 a338d496350e Checkpointing conversion to allow object target lost parents: 65 diff changeset	193 register_error(as, l, 2, "Illegal external or intersegment reference");
33 74a3fef7c8d0 Added general addressing modes (immediate, base page, extended, indexed) lost parents: 4 diff changeset	194 }
77 a338d496350e Checkpointing conversion to allow object target lost parents: 65 diff changeset	195
33 74a3fef7c8d0 Added general addressing modes (immediate, base page, extended, indexed) lost parents: 4 diff changeset	196 lwasm_emit(as, l, (rval >> 24) & 0xff);
74a3fef7c8d0 Added general addressing modes (immediate, base page, extended, indexed) lost parents: 4 diff changeset	197 lwasm_emit(as, l, (rval >> 16) & 0xff);
74a3fef7c8d0 Added general addressing modes (immediate, base page, extended, indexed) lost parents: 4 diff changeset	198 lwasm_emit(as, l, (rval >> 8) & 0xff);
74a3fef7c8d0 Added general addressing modes (immediate, base page, extended, indexed) lost parents: 4 diff changeset	199 lwasm_emit(as, l, rval & 0xff);
74a3fef7c8d0 Added general addressing modes (immediate, base page, extended, indexed) lost parents: 4 diff changeset	200 return;
74a3fef7c8d0 Added general addressing modes (immediate, base page, extended, indexed) lost parents: 4 diff changeset	201 }
74a3fef7c8d0 Added general addressing modes (immediate, base page, extended, indexed) lost parents: 4 diff changeset	202
34 b29eec6f3819 Finished adding addressing mode handlers lost parents: 33 diff changeset	203 insn_gen_aux(as, l, p, opnum, -1);
33 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
74a3fef7c8d0 Added general addressing modes (immediate, base page, extended, indexed) lost parents: 4 diff changeset	206 OPFUNC(insn_imm8)
74a3fef7c8d0 Added general addressing modes (immediate, base page, extended, indexed) lost parents: 4 diff changeset	207 {
77 a338d496350e Checkpointing conversion to allow object target lost parents: 65 diff changeset	208 int r, rval;
33 74a3fef7c8d0 Added general addressing modes (immediate, base page, extended, indexed) lost parents: 4 diff changeset	209
74a3fef7c8d0 Added general addressing modes (immediate, base page, extended, indexed) lost parents: 4 diff changeset	210 if (**p == '#')
74a3fef7c8d0 Added general addressing modes (immediate, base page, extended, indexed) lost parents: 4 diff changeset	211 {
74a3fef7c8d0 Added general addressing modes (immediate, base page, extended, indexed) lost parents: 4 diff changeset	212 lwasm_emitop(as, l, instab[opnum].ops[0]);
74a3fef7c8d0 Added general addressing modes (immediate, base page, extended, indexed) lost parents: 4 diff changeset	213 (*p)++;
77 a338d496350e Checkpointing conversion to allow object target lost parents: 65 diff changeset	214
a338d496350e Checkpointing conversion to allow object target lost parents: 65 diff changeset	215 r = lwasm_expr_result2(as, l, p, EXPR_PASS2CONST \| EXPR_BYTE, &rval, 0);
a338d496350e Checkpointing conversion to allow object target lost parents: 65 diff changeset	216 if (r != 0)
33 74a3fef7c8d0 Added general addressing modes (immediate, base page, extended, indexed) lost parents: 4 diff changeset	217 rval = 0;
77 a338d496350e Checkpointing conversion to allow object target lost parents: 65 diff changeset	218 if (r == 1 && as -> passnum == 2)
a338d496350e Checkpointing conversion to allow object target lost parents: 65 diff changeset	219 register_error(as, l, 2, "Illegal external or intersegment reference");
a338d496350e Checkpointing conversion to allow object target lost parents: 65 diff changeset	220
33 74a3fef7c8d0 Added general addressing modes (immediate, base page, extended, indexed) lost parents: 4 diff changeset	221 if (rval < -128 \|\| rval > 255)
74a3fef7c8d0 Added general addressing modes (immediate, base page, extended, indexed) lost parents: 4 diff changeset	222 register_error(as, l, 2, "Byte overflow");
74a3fef7c8d0 Added general addressing modes (immediate, base page, extended, indexed) lost parents: 4 diff changeset	223 lwasm_emit(as, l, rval & 0xff);
0 57495da01900 Initial checking of LWASM lost parents: diff changeset	224 return;
57495da01900 Initial checking of LWASM lost parents: diff changeset	225 }
57495da01900 Initial checking of LWASM lost parents: diff changeset	226
33 74a3fef7c8d0 Added general addressing modes (immediate, base page, extended, indexed) lost parents: 4 diff changeset	227 register_error(as, l, 1, "Bad operand");
0 57495da01900 Initial checking of LWASM lost parents: diff changeset	228 }

Mercurial > hg-old > index.cgi

annotate src/insn_gen.c @ 96:7fbccdd1defb