1 |
2 |
dgisselq |
////////////////////////////////////////////////////////////////////////////////
|
2 |
|
|
//
|
3 |
|
|
// Filename: zparser.cpp
|
4 |
|
|
//
|
5 |
|
|
// Project: Zip CPU -- a small, lightweight, RISC CPU core
|
6 |
|
|
//
|
7 |
|
|
// Purpose:
|
8 |
|
|
//
|
9 |
|
|
// Creator: Dan Gisselquist, Ph.D.
|
10 |
|
|
// Gisselquist Tecnology, LLC
|
11 |
|
|
//
|
12 |
|
|
////////////////////////////////////////////////////////////////////////////////
|
13 |
|
|
//
|
14 |
|
|
// Copyright (C) 2015, Gisselquist Technology, LLC
|
15 |
|
|
//
|
16 |
|
|
// This program is free software (firmware): you can redistribute it and/or
|
17 |
|
|
// modify it under the terms of the GNU General Public License as published
|
18 |
|
|
// by the Free Software Foundation, either version 3 of the License, or (at
|
19 |
|
|
// your option) any later version.
|
20 |
|
|
//
|
21 |
|
|
// This program is distributed in the hope that it will be useful, but WITHOUT
|
22 |
|
|
// ANY WARRANTY; without even the implied warranty of MERCHANTIBILITY or
|
23 |
|
|
// FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
|
24 |
|
|
// for more details.
|
25 |
|
|
//
|
26 |
|
|
// You should have received a copy of the GNU General Public License along
|
27 |
|
|
// with this program. (It's in the $(ROOT)/doc directory, run make with no
|
28 |
|
|
// target there if the PDF file isn't present.) If not, see
|
29 |
|
|
// <http://www.gnu.org/licenses/> for a copy.
|
30 |
|
|
//
|
31 |
|
|
// License: GPL, v3, as defined and found on www.gnu.org,
|
32 |
|
|
// http://www.gnu.org/licenses/gpl.html
|
33 |
|
|
//
|
34 |
|
|
//
|
35 |
|
|
////////////////////////////////////////////////////////////////////////////////
|
36 |
|
|
|
37 |
|
|
#include <stdio.h>
|
38 |
|
|
#include <stdlib.h>
|
39 |
|
|
#include <string.h>
|
40 |
|
|
#include <ctype.h>
|
41 |
|
|
#include <strings.h>
|
42 |
|
|
|
43 |
|
|
#include "zparser.h"
|
44 |
|
|
#include "zopcodes.h"
|
45 |
|
|
|
46 |
|
|
typedef ZPARSER::ZIPI ZIPI; // A Zip Instruction (i.e. uint32)
|
47 |
|
|
|
48 |
|
|
bool ZPARSER::iscomment(const char *line) const {
|
49 |
|
|
const char *sp = line;
|
50 |
|
|
do {
|
51 |
|
|
if (*sp == '\0')
|
52 |
|
|
return true;
|
53 |
|
|
else if (*sp == ';')
|
54 |
|
|
return true;
|
55 |
|
|
else if (*sp == '#')
|
56 |
|
|
return true;
|
57 |
|
|
else if (*sp == '\n')
|
58 |
|
|
return true;
|
59 |
|
|
else if (*sp == '\r')
|
60 |
|
|
return true;
|
61 |
|
|
else if ((*sp == '/')&&(sp[1] == '/'))
|
62 |
|
|
return true;
|
63 |
|
|
else if (!isspace(*sp))
|
64 |
|
|
return false;
|
65 |
|
|
} while(*sp++);
|
66 |
|
|
|
67 |
|
|
return true;
|
68 |
|
|
}
|
69 |
|
|
|
70 |
|
|
bool ZPARSER::islabel(const char *line) const {
|
71 |
|
|
const char *sp = line;
|
72 |
|
|
if (isspace(*line))
|
73 |
|
|
return false;
|
74 |
|
|
if (!isalpha(*line))
|
75 |
|
|
return false;
|
76 |
|
|
while((isalpha(*sp))||(isdigit(*sp))||(*sp=='_'))
|
77 |
|
|
sp++;
|
78 |
|
|
if (*sp != ':')
|
79 |
|
|
return false;
|
80 |
|
|
sp++;
|
81 |
|
|
return iscomment(sp);
|
82 |
|
|
}
|
83 |
|
|
|
84 |
|
|
bool ZPARSER::parse_op(const char *line, ZPARSER::ZIPA pc,
|
85 |
|
|
ZPARSER::ZIPI &ins, const unsigned lineno) const {
|
86 |
|
|
const char *sp = line;
|
87 |
|
|
char cpy[128], *cp = cpy, *point, *dollar, *plus, *comma,
|
88 |
|
|
*opc, *opb;
|
89 |
|
|
ZPARSER::ZIPREG ra = ZPARSER::ZIP_Rnone, rb = ZPARSER::ZIP_Rnone;
|
90 |
|
|
ZIPCOND cnd = ZIPC_ALWAYS;
|
91 |
|
|
ZIPIMM imm = 0;
|
92 |
|
|
bool valid = true;
|
93 |
|
|
|
94 |
|
|
if (!isspace(*sp))
|
95 |
|
|
return false;
|
96 |
|
|
|
97 |
|
|
while(isspace(*sp))
|
98 |
|
|
sp++;
|
99 |
|
|
// Remove comments from our local copy
|
100 |
|
|
for(unsigned int i=0; i<sizeof(cpy); i++) {
|
101 |
|
|
if (*sp == '\0')
|
102 |
|
|
break;
|
103 |
|
|
else if (*sp == ';')
|
104 |
|
|
break;
|
105 |
|
|
else if (*sp == '#')
|
106 |
|
|
break;
|
107 |
|
|
else if (*sp == '\n')
|
108 |
|
|
break;
|
109 |
|
|
else if (*sp == '\r')
|
110 |
|
|
break;
|
111 |
|
|
else if ((*sp == '/')&&(sp[1] == '/'))
|
112 |
|
|
break;
|
113 |
|
|
*cp++ = *sp++;
|
114 |
|
|
} if (cp-cpy >= (int)sizeof(cpy))
|
115 |
|
|
return false;
|
116 |
|
|
*cp = '\0';
|
117 |
|
|
point = strchr(cpy, '.');
|
118 |
|
|
comma = strchr(cpy, ',');
|
119 |
|
|
plus = strchr(cpy, '+');
|
120 |
|
|
dollar= strchr(cpy, '$');
|
121 |
|
|
// paren = strchr(cpy, '(');
|
122 |
|
|
if (point) *point++ = '\0';
|
123 |
|
|
if (comma) *comma++ = '\0';
|
124 |
|
|
if (plus) *plus++ = '\0';
|
125 |
|
|
if (dollar) *dollar++ = '\0';
|
126 |
|
|
// if (paren) *paren++ = '\0';
|
127 |
|
|
cp = cpy;
|
128 |
|
|
while(isalpha(*cp))
|
129 |
|
|
cp++;
|
130 |
|
|
opc = cpy;
|
131 |
|
|
if ((*cp == '\0')&&(point == NULL))
|
132 |
|
|
cp[1] = '\0';
|
133 |
|
|
*cp = '\0';
|
134 |
|
|
|
135 |
|
|
if ((point)&&(strncasecmp("DAT",point,3)!=0)) {
|
136 |
|
|
cp = point;
|
137 |
|
|
while(isalpha(*cp))
|
138 |
|
|
cp++;
|
139 |
|
|
if (*cp == '\0')
|
140 |
|
|
cp[1] = '\0';
|
141 |
|
|
*cp = '\0';
|
142 |
|
|
|
143 |
|
|
for(int i=1; i<8; i++) {
|
144 |
|
|
if (strcasecmp(&zop_ccstr[i][1], point)==0) {
|
145 |
|
|
cnd = (ZIPCOND)i;
|
146 |
|
|
break;
|
147 |
|
|
}
|
148 |
|
|
} if (cnd == ZIPC_ALWAYS) {
|
149 |
|
|
printf("ERR: Unrecognized condition, %s\n", point);
|
150 |
|
|
valid = false;
|
151 |
|
|
}
|
152 |
|
|
}
|
153 |
|
|
|
154 |
|
|
cp++;
|
155 |
|
|
while(isspace(*cp))
|
156 |
|
|
cp++;
|
157 |
|
|
opb = cp;
|
158 |
|
|
|
159 |
|
|
if (dollar) {
|
160 |
|
|
// Figure out the base
|
161 |
|
|
{
|
162 |
|
|
char *ip = dollar, mxd = 0;
|
163 |
|
|
if ((*ip == '0')&&(toupper(ip[1])=='X'))
|
164 |
|
|
imm = strtoul(dollar, NULL, 16);
|
165 |
|
|
else {
|
166 |
|
|
bool neg = false;
|
167 |
|
|
if (*ip == '-') {
|
168 |
|
|
neg = true;
|
169 |
|
|
ip++;
|
170 |
|
|
dollar++;
|
171 |
|
|
}
|
172 |
|
|
while(isdigit(*ip)||((toupper(*ip)>='A')&&(toupper(*ip)<='F'))) {
|
173 |
|
|
if (isalpha(*ip))
|
174 |
|
|
mxd = (*ip-'a')+10;
|
175 |
|
|
else
|
176 |
|
|
mxd = (*ip-'0');
|
177 |
|
|
ip++;
|
178 |
|
|
}
|
179 |
|
|
|
180 |
|
|
if ((mxd <= 1)&&(*ip=='d'))
|
181 |
|
|
imm = strtoul(dollar, NULL, 2);
|
182 |
|
|
else if ((mxd <= 7)&&((*dollar == '0')||(toupper(*ip)=='O')))
|
183 |
|
|
imm = strtoul(dollar, NULL, 8);
|
184 |
|
|
else if ((mxd <= 15)&&(toupper(*ip)=='H'))
|
185 |
|
|
imm = strtoul(dollar, NULL, 16);
|
186 |
|
|
else if ((toupper(*ip)=='D')||(*ip == '+')||(isspace(*ip))||(*ip == '(')||(*ip == '\0'))
|
187 |
|
|
imm = atoi(dollar);
|
188 |
|
|
else {
|
189 |
|
|
printf("Cannot parse immediate, %s\n", dollar);
|
190 |
|
|
printf("Assuming you meant %d\n", atoi(dollar));
|
191 |
|
|
imm = atoi(dollar);
|
192 |
|
|
}
|
193 |
|
|
|
194 |
|
|
if (neg)
|
195 |
|
|
imm = -imm;
|
196 |
|
|
}
|
197 |
|
|
}
|
198 |
|
|
opb = dollar;
|
199 |
|
|
if (plus)
|
200 |
|
|
opb = plus;
|
201 |
|
|
} else
|
202 |
|
|
imm = 0;
|
203 |
|
|
if (*opb) for(int i=31; i>=0; i--) {
|
204 |
|
|
// printf("Checking for match: \'%s\' to %s", opb, zop_regstr[i]);
|
205 |
|
|
if (NULL != strcasestr(opb, zop_regstr[i])) {
|
206 |
|
|
// printf(" --- Match\n");
|
207 |
|
|
rb = (ZIPREG)i;
|
208 |
|
|
break;
|
209 |
|
|
} // else printf(" -- nope\n");
|
210 |
|
|
} if (comma) for(int i=31; i>=0; i--) {
|
211 |
|
|
// printf("Checking for match: ,%s to %s", comma, zop_regstr[i]);
|
212 |
|
|
if (NULL != strcasestr(comma, zop_regstr[i])) {
|
213 |
|
|
ra = (ZIPREG)i;
|
214 |
|
|
// printf(" --- Match\n");
|
215 |
|
|
break;
|
216 |
|
|
} // else printf(" -- nope\n");
|
217 |
|
|
}
|
218 |
|
|
|
219 |
|
|
if (strcasecmp("MOV",opc)!=0) {
|
220 |
|
|
// Only move instructions can reference user regs
|
221 |
|
|
if ((ra != ZIP_Rnone)&&(ra >= ZIP_uR0))
|
222 |
|
|
valid = false;
|
223 |
|
|
if ((rb != ZIP_Rnone)&&(rb >= ZIP_uR0))
|
224 |
|
|
valid = false;
|
225 |
|
|
if (!valid)
|
226 |
|
|
printf("ERR: Only Mov can specify user regs\n");
|
227 |
|
|
}
|
228 |
|
|
|
229 |
|
|
if ((!*opc)&&(strncasecmp("DAT",point,3)==0)) {
|
230 |
|
|
ins = strtoul(opb, NULL, 0);
|
231 |
|
|
valid = true;
|
232 |
|
|
} else if (strcasecmp("CMP",opc)==0) {
|
233 |
|
|
if (rb != ZIP_Rnone)
|
234 |
|
|
ins = op_cmp(cnd, imm, rb, ra);
|
235 |
|
|
else ins = op_cmp(cnd, imm, ra);
|
236 |
|
|
} else if (strcasecmp("TST",opc)==0) {
|
237 |
|
|
if (rb != ZIP_Rnone)
|
238 |
|
|
ins = op_tst(cnd, imm, rb, ra);
|
239 |
|
|
else if (!dollar)
|
240 |
|
|
ins = op_tst(cnd, ra);
|
241 |
|
|
else
|
242 |
|
|
ins = op_tst(cnd, imm, ra);
|
243 |
|
|
} else if (strcasecmp("MOV",opc)==0) {
|
244 |
|
|
if ((rb != ZIP_Rnone)&&(ra != ZIP_Rnone))
|
245 |
|
|
ins = op_mov(cnd, imm, rb, ra);
|
246 |
|
|
else { printf("ERR MOV, ra = %d, rb = %d, imm = %d, cnd = %d\nLine was: %s", (int)ra, (int)rb, (int)imm, (int)cnd, line); valid = false; }
|
247 |
|
|
} else if (strcasecmp("LDI",opc)==0) {
|
248 |
|
|
if ((rb == ZIP_Rnone)&&(cnd == ZIPC_ALWAYS))
|
249 |
|
|
ins = op_ldi(imm, ra);
|
250 |
|
|
else valid = false;
|
251 |
|
|
} else if (strcasecmp("trap",opc)==0) {
|
252 |
|
|
if ((rb == ZIP_Rnone)&&(rb == ZIP_Rnone))
|
253 |
|
|
ins = op_trap(cnd, imm);
|
254 |
|
|
else
|
255 |
|
|
valid = false;
|
256 |
|
|
} else if (strcasecmp("CLR",opc)==0) {
|
257 |
|
|
if ((ra == ZIP_Rnone)&&(!dollar)&&(cnd == ZIPC_ALWAYS))
|
258 |
|
|
ins = op_clr(rb); // Good
|
259 |
|
|
else valid = false;
|
260 |
|
|
} else if ((strcasecmp("NOOP",opc)==0)||(strcasecmp("NOP",opc)==0)) {
|
261 |
|
|
if ((rb == ZIP_Rnone)&&(ra == ZIP_Rnone)&&(!dollar)&&(cnd == ZIPC_ALWAYS))
|
262 |
|
|
ins = op_noop();
|
263 |
|
|
else { printf("ERR: NOP, ra=%d, rb=%d, dollar = %s\n",
|
264 |
|
|
(int)ra, (int)rb, (dollar)?"true":"false"); valid = false; }
|
265 |
|
|
} else if ((strcasecmp("BREAK",opc)==0)||(strcasecmp("BRK",opc)==0)) {
|
266 |
|
|
if ((rb == ZIP_Rnone)&&(ra == ZIP_Rnone)&&(!dollar)&&(cnd == ZIPC_ALWAYS))
|
267 |
|
|
ins = op_break();
|
268 |
|
|
else { printf("ERR: BRK, ra=%d, rb=%d, dollar = %s\n",
|
269 |
|
|
(int)ra, (int)rb, (dollar)?"true":"false"); valid = false; }
|
270 |
|
|
} else if ((strcasecmp("LDIHI",opc)==0)||(strcasecmp("LODIHI",opc)==0)) {
|
271 |
|
|
if ((dollar)&&(ra != ZIP_Rnone))
|
272 |
|
|
ins = op_ldihi(cnd, imm, ra);
|
273 |
|
|
else valid = false;
|
274 |
|
|
} else if ((strcasecmp("LDILO",opc)==0)||(strcasecmp("LODILO",opc)==0)){
|
275 |
|
|
if ((dollar)&&(ra != ZIP_Rnone))
|
276 |
|
|
ins = op_ldilo(cnd, imm, ra);
|
277 |
|
|
else valid = false;
|
278 |
|
|
} else if ((strcasecmp("LOD",opc)==0)||(strcasecmp("LOAD",opc)==0)) {
|
279 |
|
|
if (rb != ZIP_Rnone)
|
280 |
|
|
ins = op_lod(cnd,imm,rb,ra);
|
281 |
|
|
else ins = op_lod(cnd,imm,ra);
|
282 |
|
|
} else if ((strcasecmp("STO",opc)==0)||(strcasecmp("STOR",opc)==0)) {
|
283 |
|
|
if (rb != ZIP_Rnone)
|
284 |
|
|
ins = op_sto(cnd,rb,imm,ra);
|
285 |
|
|
else ins = op_sto(cnd,rb,imm);
|
286 |
|
|
} else if (strcasecmp("SUB",opc)==0) {
|
287 |
|
|
if (rb != ZIP_Rnone)
|
288 |
|
|
ins = op_sub(cnd,imm,rb,ra);
|
289 |
|
|
else ins = op_sub(cnd,imm,ra);
|
290 |
|
|
} else if (strcasecmp("AND",opc)==0) {
|
291 |
|
|
if (rb != ZIP_Rnone)
|
292 |
|
|
ins = op_and(cnd,imm,rb,ra);
|
293 |
|
|
else ins = op_and(cnd,imm,ra);
|
294 |
|
|
} else if (strcasecmp("ADD",opc)==0) {
|
295 |
|
|
if (rb != ZIP_Rnone)
|
296 |
|
|
ins = op_add(cnd,imm,rb,ra);
|
297 |
|
|
else ins = op_add(cnd,imm,ra);
|
298 |
|
|
} else if (strcasecmp("OR",opc)==0) {
|
299 |
|
|
if (rb != ZIP_Rnone)
|
300 |
|
|
ins = op_or(cnd,imm,rb,ra);
|
301 |
|
|
else ins = op_or(cnd,imm,ra);
|
302 |
|
|
} else if (strcasecmp("XOR",opc)==0) {
|
303 |
|
|
if (rb != ZIP_Rnone)
|
304 |
|
|
ins = op_xor(cnd,imm,rb,ra);
|
305 |
|
|
else ins = op_xor(cnd,imm,ra);
|
306 |
|
|
} else if ((strcasecmp("LSL",opc)==0)||(strcasecmp("ASL",opc)==0)) {
|
307 |
|
|
if (rb != ZIP_Rnone)
|
308 |
|
|
ins = op_lsl(cnd,imm,rb,ra);
|
309 |
|
|
else ins = op_lsl(cnd,imm,ra);
|
310 |
|
|
} else if (strcasecmp("ASR",opc)==0) {
|
311 |
|
|
if (rb != ZIP_Rnone)
|
312 |
|
|
ins = op_asr(cnd,imm,rb,ra);
|
313 |
|
|
else ins = op_asr(cnd,imm,ra);
|
314 |
|
|
} else if (strcasecmp("LSR",opc)==0) {
|
315 |
|
|
if (rb != ZIP_Rnone)
|
316 |
|
|
ins = op_lsr(cnd,imm,rb,ra);
|
317 |
|
|
else ins = op_lsr(cnd,imm,ra);
|
318 |
|
|
} else if (strcasecmp("BR",opc)==0) {
|
319 |
|
|
if ((dollar)||(ra != ZIP_Rnone)||(rb != ZIP_Rnone))
|
320 |
|
|
valid = false;
|
321 |
|
|
else ins = op_bra(cnd, imm);
|
322 |
|
|
} else if (strcasecmp("BRA",opc)==0) {
|
323 |
|
|
if ((!dollar)||(ra != ZIP_Rnone)||(rb != ZIP_Rnone)||(cnd != ZIPC_ALWAYS))
|
324 |
|
|
valid = false;
|
325 |
|
|
else ins = op_bra(imm);
|
326 |
|
|
} else if (strcasecmp("BRZ",opc)==0) {
|
327 |
|
|
if ((!dollar)||(ra != ZIP_Rnone)||(rb != ZIP_Rnone)||(cnd != ZIPC_ALWAYS))
|
328 |
|
|
valid = false;
|
329 |
|
|
else ins = op_brz(imm);
|
330 |
|
|
} else if ((strcasecmp("BRNZ",opc)==0)||(strcasecmp("BNZ",opc)==0)) {
|
331 |
|
|
if ((!dollar)||(ra != ZIP_Rnone)||(rb != ZIP_Rnone)||(cnd != ZIPC_ALWAYS))
|
332 |
|
|
valid = false;
|
333 |
|
|
else ins = op_bnz(imm);
|
334 |
|
|
} else if ((strcasecmp("BRGE",opc)==0)||(strcasecmp("BGE",opc)==0)) {
|
335 |
|
|
if ((!dollar)||(ra != ZIP_Rnone)||(rb != ZIP_Rnone)||(cnd != ZIPC_ALWAYS))
|
336 |
|
|
valid = false;
|
337 |
|
|
else ins = op_bge(imm);
|
338 |
|
|
} else if ((strcasecmp("BRGT",opc)==0)||(strcasecmp("BGT",opc)==0)) {
|
339 |
|
|
if ((!dollar)||(ra != ZIP_Rnone)||(rb != ZIP_Rnone)||(cnd != ZIPC_ALWAYS))
|
340 |
|
|
valid = false;
|
341 |
|
|
else ins = op_bgt(imm);
|
342 |
|
|
} else if (strcasecmp("BRZ",opc)==0) {
|
343 |
|
|
} else if ((strcasecmp("BRLT",opc)==0)||(strcasecmp("BLT",opc)==0)) {
|
344 |
|
|
if ((!dollar)||(ra != ZIP_Rnone)||(rb != ZIP_Rnone)||(cnd != ZIPC_ALWAYS))
|
345 |
|
|
valid = false;
|
346 |
|
|
else ins = op_blt(imm);
|
347 |
|
|
} else if ((strcasecmp("BRC",opc)==0)||(strcasecmp("BC",opc)==0)) {
|
348 |
|
|
if ((!dollar)||(ra != ZIP_Rnone)||(rb != ZIP_Rnone)||(cnd != ZIPC_ALWAYS))
|
349 |
|
|
valid = false;
|
350 |
|
|
else ins = op_brc(imm);
|
351 |
|
|
} else if ((strcasecmp("BRV",opc)==0)||(strcasecmp("BV",opc)==0)) {
|
352 |
|
|
if ((!dollar)||(ra != ZIP_Rnone)||(rb != ZIP_Rnone)||(cnd != ZIPC_ALWAYS))
|
353 |
|
|
valid = false;
|
354 |
|
|
else ins = op_brv(imm);
|
355 |
|
|
} else if (strcasecmp("CLRF",opc)==0) {
|
356 |
|
|
if ((ra == ZIP_Rnone)&&(!dollar)&&(imm==0))
|
357 |
|
|
ins = op_clrf(cnd, rb);
|
358 |
|
|
else valid = false;
|
359 |
|
|
} else if((strcasecmp("HALT",opc)==0)||(strcasecmp("WAIT",opc)==0)) {
|
360 |
|
|
if ((rb == ZIP_Rnone)&&(ra==ZIP_Rnone)&&(!comma)&&(!dollar))
|
361 |
|
|
ins = op_halt(cnd);
|
362 |
|
|
else valid = false;
|
363 |
|
|
} else if (strcasecmp("BUSY",opc)==0) {
|
364 |
|
|
if ((rb == ZIP_Rnone)&&(ra==ZIP_Rnone)&&(!comma)&&(!dollar))
|
365 |
|
|
ins = op_busy(cnd);
|
366 |
|
|
else valid = false;
|
367 |
|
|
} else if (strcasecmp("RTU",opc)==0) {
|
368 |
|
|
if ((rb == ZIP_Rnone)&&(ra==ZIP_Rnone)&&(imm==0)&&(!comma)&&(!dollar))
|
369 |
|
|
ins = op_rtu(cnd);
|
370 |
|
|
else { printf("ERRR,RTU, ra=%d,rb=%d,imm=%08x,comma=%s,dollar=%s\n",
|
371 |
|
|
(int)ra, (int)rb, imm, (comma)?"true":"false",
|
372 |
|
|
(dollar)?"true":"false");
|
373 |
|
|
valid = false;
|
374 |
|
|
}
|
375 |
|
|
} else if (strcasecmp("JMP",opc)==0) {
|
376 |
|
|
if ((rb != ZIP_Rnone)&&(!comma))
|
377 |
|
|
ins = op_not(cnd, rb);
|
378 |
|
|
else valid = false;
|
379 |
|
|
} else if (strcasecmp("NOT",opc)==0) {
|
380 |
|
|
if ((rb != ZIP_Rnone)&&(ra==ZIP_Rnone)&&(!comma)&&(!dollar))
|
381 |
|
|
ins = op_not(cnd, rb);
|
382 |
|
|
else valid = false;
|
383 |
|
|
} else valid = false;
|
384 |
|
|
|
385 |
|
|
return valid;
|
386 |
|
|
}
|
387 |
|
|
|
388 |
|
|
bool ZPARSER::parse(const char *line, ZPARSER::ZIPA &pc, ZPARSER::ZIPI &instruction, const unsigned int lineno) {
|
389 |
|
|
bool v = parse_op(line, pc, instruction, lineno);
|
390 |
|
|
pc = pc + 1;
|
391 |
|
|
return v;
|
392 |
|
|
}
|
393 |
|
|
|
394 |
|
|
#define IMMOP(OP,CND,IMM,A) (((OP&0x0f)<<28)|((A&0x0f)<<24)|((CND&0x07)<<21) \
|
395 |
|
|
| (IMM & 0x0fffff))
|
396 |
|
|
|
397 |
|
|
#define DBLREGOP(OP,CND,IMM,B,A) (((OP&0x0f)<<28)|((A&0x0f)<<24) \
|
398 |
|
|
|((CND&0x07)<<21)|(1<<20)|((B&0x0f)<<16) \
|
399 |
|
|
| (IMM & 0x0ffff))
|
400 |
|
|
|
401 |
|
|
ZIPI ZPARSER::op_cmp(ZIPCOND cnd, ZIPIMM imm, ZIPREG b, ZIPREG a) const {
|
402 |
|
|
return DBLREGOP(0x0, cnd, imm, b, a);
|
403 |
|
|
}
|
404 |
|
|
|
405 |
|
|
ZIPI ZPARSER::op_cmp(ZIPCOND cnd, ZIPIMM imm, ZIPREG a) const {
|
406 |
|
|
return IMMOP(0x0, cnd, imm, a);
|
407 |
|
|
}
|
408 |
|
|
|
409 |
|
|
|
410 |
|
|
ZIPI ZPARSER::op_tst(ZIPCOND cnd, ZIPIMM imm, ZIPREG b, ZIPREG a) const {
|
411 |
|
|
return DBLREGOP(0x1, cnd, imm, b, a);
|
412 |
|
|
} ZIPI ZPARSER::op_tst(ZIPCOND cnd, ZIPIMM imm, ZIPREG a) const {
|
413 |
|
|
return IMMOP(0x1, cnd, imm, a);
|
414 |
|
|
}
|
415 |
|
|
|
416 |
|
|
ZIPI ZPARSER::op_mov(ZIPCOND cnd, ZIPIMM imm, ZIPREG b, ZIPREG a) const {
|
417 |
|
|
ZIPI in;
|
418 |
|
|
in = (0x02 << 28)|((a&0x0f)<<24)|((cnd&0x07)<<21);
|
419 |
|
|
in |= (a&0x10)<<16;
|
420 |
|
|
in |= (b&0x0f)<<16;
|
421 |
|
|
in |= (b&0x10)<<11;
|
422 |
|
|
in |= imm & 0x07fff;
|
423 |
|
|
return in;
|
424 |
|
|
}
|
425 |
|
|
|
426 |
|
|
|
427 |
|
|
ZIPI ZPARSER::op_ldi(ZIPIMM imm, ZIPREG a) const {
|
428 |
|
|
ZIPI in;
|
429 |
|
|
in = ((0x03)<<28) | ((a&0x0f)<<24) | (imm & ((1<<24)-1));
|
430 |
|
|
return in;
|
431 |
|
|
}
|
432 |
|
|
|
433 |
|
|
ZIPI ZPARSER::op_trap(ZIPCOND cnd, ZIPIMM imm) const {
|
434 |
|
|
ZIPI in;
|
435 |
|
|
in = ((0x4f)<<24)|((cnd&0x07)<<21)|(1<<20)|((0x0e)<<16);
|
436 |
|
|
in |= (imm & 0x0ffff);
|
437 |
|
|
return in;
|
438 |
|
|
}
|
439 |
|
|
|
440 |
|
|
ZIPI ZPARSER::op_noop(void) const {
|
441 |
|
|
return 0x4e000000;
|
442 |
|
|
}
|
443 |
|
|
ZIPI ZPARSER::op_break(void) const {
|
444 |
|
|
return 0x4e000001;
|
445 |
|
|
}
|
446 |
|
|
|
447 |
|
|
ZIPI ZPARSER::op_ldihi(ZIPCOND cnd, ZIPIMM imm, ZIPREG a) const {
|
448 |
|
|
ZIPI in;
|
449 |
|
|
in = ((0x4f)<<24)|((cnd&0x07)<<21)|(1<<20)|((a&0x0f)<<16);
|
450 |
|
|
in |= (imm & 0x0ffff);
|
451 |
|
|
return in;
|
452 |
|
|
}
|
453 |
|
|
ZIPI ZPARSER::op_ldilo(ZIPCOND cnd, ZIPIMM imm, ZIPREG a) const {
|
454 |
|
|
ZIPI in;
|
455 |
|
|
in = ((0x4f)<<24)|((cnd&0x07)<<21)|(0<<20)|((a&0x0f)<<16);
|
456 |
|
|
in |= (imm & 0x0ffff);
|
457 |
|
|
return in;
|
458 |
|
|
}
|
459 |
|
|
|
460 |
|
|
ZIPI ZPARSER::op_lod(ZIPCOND cnd, ZIPIMM imm, ZIPREG b, ZIPREG a) const {
|
461 |
|
|
return DBLREGOP(0x6, cnd, imm, b, a);
|
462 |
|
|
}
|
463 |
|
|
|
464 |
|
|
ZIPI ZPARSER::op_lod(ZIPCOND cnd, ZIPIMM imm, ZIPREG a) const {
|
465 |
|
|
return IMMOP(0x6, cnd, imm, a);
|
466 |
|
|
}
|
467 |
|
|
|
468 |
|
|
|
469 |
|
|
ZIPI ZPARSER::op_sto(ZIPCOND cnd, ZIPREG v, ZIPIMM imm, ZIPREG b) const {
|
470 |
|
|
return DBLREGOP(0x7, cnd, imm, b, v);
|
471 |
|
|
} ZIPI ZPARSER::op_sto(ZIPCOND cnd, ZIPREG v, ZIPIMM imm) const {
|
472 |
|
|
return IMMOP(0x7, cnd, imm, v);
|
473 |
|
|
}
|
474 |
|
|
|
475 |
|
|
|
476 |
|
|
ZIPI ZPARSER::op_sub(ZIPCOND cnd, ZIPIMM imm, ZIPREG b, ZIPREG a) const {
|
477 |
|
|
return DBLREGOP(0x8, cnd, imm, b, a);
|
478 |
|
|
} ZIPI ZPARSER::op_sub(ZIPCOND cnd, ZIPIMM imm, ZIPREG a) const {
|
479 |
|
|
return IMMOP(0x8, cnd, imm, a);
|
480 |
|
|
}
|
481 |
|
|
|
482 |
|
|
|
483 |
|
|
ZIPI ZPARSER::op_and(ZIPCOND cnd, ZIPIMM imm, ZIPREG b, ZIPREG a) const {
|
484 |
|
|
return DBLREGOP(0x9, cnd, imm, b, a);
|
485 |
|
|
} ZIPI ZPARSER::op_and(ZIPCOND cnd, ZIPIMM imm, ZIPREG a) const {
|
486 |
|
|
return IMMOP(0x9, cnd, imm, a);
|
487 |
|
|
}
|
488 |
|
|
|
489 |
|
|
|
490 |
|
|
ZIPI ZPARSER::op_add(ZIPCOND cnd, ZIPIMM imm, ZIPREG b, ZIPREG a) const {
|
491 |
|
|
return DBLREGOP(0xa, cnd, imm, b, a);
|
492 |
|
|
} ZIPI ZPARSER::op_add(ZIPCOND cnd, ZIPIMM imm, ZIPREG a) const {
|
493 |
|
|
return IMMOP(0xa, cnd, imm, a);
|
494 |
|
|
}
|
495 |
|
|
|
496 |
|
|
|
497 |
|
|
ZIPI ZPARSER::op_or(ZIPCOND cnd, ZIPIMM imm, ZIPREG b, ZIPREG a) const {
|
498 |
|
|
return DBLREGOP(0xb, cnd, imm, b, a);
|
499 |
|
|
} ZIPI ZPARSER::op_or(ZIPCOND cnd, ZIPIMM imm, ZIPREG a) const {
|
500 |
|
|
return IMMOP(0xb, cnd, imm, a);
|
501 |
|
|
}
|
502 |
|
|
|
503 |
|
|
ZIPI ZPARSER::op_xor(ZIPCOND cnd, ZIPIMM imm, ZIPREG b, ZIPREG a) const {
|
504 |
|
|
return DBLREGOP(0xc, cnd, imm, b, a);
|
505 |
|
|
} ZIPI ZPARSER::op_xor(ZIPCOND cnd, ZIPIMM imm, ZIPREG a) const {
|
506 |
|
|
return IMMOP(0xc, cnd, imm, a);
|
507 |
|
|
}
|
508 |
|
|
|
509 |
|
|
ZIPI ZPARSER::op_lsl(ZIPCOND cnd, ZIPIMM imm, ZIPREG b, ZIPREG a) const {
|
510 |
|
|
return DBLREGOP(0xd, cnd, imm, b, a);
|
511 |
|
|
} ZIPI ZPARSER::op_lsl(ZIPCOND cnd, ZIPIMM imm, ZIPREG a) const {
|
512 |
|
|
return IMMOP(0xd, cnd, imm, a);
|
513 |
|
|
}
|
514 |
|
|
|
515 |
|
|
ZIPI ZPARSER::op_asr(ZIPCOND cnd, ZIPIMM imm, ZIPREG b, ZIPREG a) const {
|
516 |
|
|
return DBLREGOP(0xe, cnd, imm, b, a);
|
517 |
|
|
} ZIPI ZPARSER::op_asr(ZIPCOND cnd, ZIPIMM imm, ZIPREG a) const {
|
518 |
|
|
return IMMOP(0xe, cnd, imm, a);
|
519 |
|
|
}
|
520 |
|
|
|
521 |
|
|
ZIPI ZPARSER::op_lsr(ZIPCOND cnd, ZIPIMM imm, ZIPREG b, ZIPREG a) const {
|
522 |
|
|
return DBLREGOP(0xf, cnd, imm, b, a);
|
523 |
|
|
} ZIPI ZPARSER::op_lsr(ZIPCOND cnd, ZIPIMM imm, ZIPREG a) const {
|
524 |
|
|
return IMMOP(0xf, cnd, imm, a);
|
525 |
|
|
}
|
526 |
|
|
|