![[BACK]](/cvsweb/icons/back.gif){kind=icon}
Return to ops.vax.c CVS log ![[TXT]](/cvsweb/icons/text.gif){kind=icon}
![[DIR]](/cvsweb/icons/dir.gif){kind=icon}
Up to [CSRG BSD Unix] / 43BSDTahoe / lib / old_compiler / dbx|
Return to ops.vax.c CVS log | Up to [CSRG BSD Unix] / 43BSDTahoe / lib / old_compiler / dbx |
1.1 root 1: /*
2: * Copyright (c) 1983 Regents of the University of California.
3: * All rights reserved. The Berkeley software License Agreement
4: * specifies the terms and conditions for redistribution.
5: */
6:
7: #ifndef lint
8: static char sccsid[] = "%W% (Berkeley) %G%";
9: #endif not lint
10:
11: static char rcsid[] = "$Header: ops.c,v 1.5 84/12/26 10:41:07 linton Exp $";
12:
13: /*
14: * Machine operators.
15: */
16:
17: #include "defs.h"
18: #include "ops.h"
19:
20: #ifndef public
21: typedef unsigned char VaxOpcode;
22:
23: #define O_HALT 0x00 /* halt */
24: #define O_NOP 0x01 /* no operation */
25: #define O_REI 0x02 /* return from exception or interrupt */
26: #define O_BPT 0x03 /* break point fault */
27: #define O_RET 0x04 /* return from called procedure */
28: #define O_RSB 0x05 /* return from subroutine */
29: #define O_LDPCTX 0x06 /* load process context */
30: #define O_SVPCTX 0x07 /* save process context */
31: #define O_CVTPS 0x08 /* convert packed to leading separate numeric */
32: #define O_CVTSP 0x09 /* convert leading separate numeric to packed */
33: #define O_INDEX 0x0A /* compute index */
34: #define O_CRC 0x0B /* calculate cyclic redundancy check */
35: #define O_PROBER 0x0C /* probe read access */
36: #define O_PROBEW 0x0D /* probe write access */
37: #define O_INSQUE 0x0E /* insert into queue */
38: #define O_REMQUE 0x0F /* remove from queue */
39: #define O_BSBB 0x10 /* branch to subroutine with byte disp */
40: #define O_BRB 0x11 /* branch with byte disp */
41: #define O_BNEQ 0x12 /* branch on not equal (also BNEQU) */
42: #define O_BEQL 0x13 /* branch on equal (also BEQLU */
43: #define O_BGTR 0x14 /* branch on greater */
44: #define O_BLEQ 0x15 /* branch on less or equal */
45: #define O_JSB 0x16 /* jump to subroutine */
46: #define O_JMP 0x17 /* jump */
47: #define O_BGEQ 0x18 /* branch on greater or equal */
48: #define O_BLSS 0x19 /* branch on less */
49: #define O_BGTRU 0x1A /* branch on greater unsigned */
50: #define O_BLEQU 0x1B /* branch on less of equal unsigned */
51: #define O_BVC 0x1C /* branch on overflow clear */
52: #define O_BVS 0x1D /* branch on overflow set */
53: #define O_BCC 0x1E /* branch on carry clear (also BGEQU) */
54: #define O_BCS 0x1F /* branch on carry set (also BLSSU) */
55: #define O_ADDP4 0x20 /* add packed 4 operand */
56: #define O_ADDP6 0x21 /* add packed 6 operand */
57: #define O_SUBP4 0x22 /* subtract packed 4 operand */
58: #define O_SUBP6 0x23 /* subtract packed 6 operand */
59: #define O_CVTPT 0x24 /* convert packed to trailing numeric */
60: #define O_MULP 0x25 /* multiply packed */
61: #define O_CVTTP 0x26 /* convert trailing numeric to packed */
62: #define O_DIVP 0x27 /* divide packed */
63: #define O_MOVC3 0x28 /* move character 3 operand */
64: #define O_CMPC3 0x29 /* compare character 3 operand */
65: #define O_SCANC 0x2A /* scan for character */
66: #define O_SPANC 0x2B /* span characters */
67: #define O_MOVC5 0x2C /* move character 5 operand */
68: #define O_CMPC5 0x2D /* compare character 5 operand */
69: #define O_MOVTC 0x2E /* move translated characters */
70: #define O_MOVTUC 0x2F /* move translated until character */
71: #define O_BSBW 0x30 /* branch to subroutine with word disp */
72: #define O_BRW 0x31 /* branch with word disp */
73: #define O_CVTWL 0x32 /* convert word to long */
74: #define O_CVTWB 0x33 /* convert word to byte */
75: #define O_MOVP 0x34 /* move packed */
76: #define O_CMPP3 0x35 /* compare packed 3 operand */
77: #define O_CVTPL 0x36 /* convert packed to long */
78: #define O_CMPP4 0x37 /* compare packed 4 operand */
79: #define O_EDITPC 0x38 /* edit packed to character */
80: #define O_MATCHC 0x39 /* match characters */
81: #define O_LOCC 0x3A /* locate characters */
82: #define O_SKPC 0x3B /* skip character */
83: #define O_MOVZWL 0x3C /* move zero-extended word to long */
84: #define O_ACBW 0x3D /* add compare and branch word */
85: #define O_MOVAW 0x3E /* move address of word */
86: #define O_PUSHAW 0x3F /* push address of word */
87: #define O_ADDF2 0x40 /* add floating 2 operand */
88: #define O_ADDF3 0x41 /* add floating 3 operand */
89: #define O_SUBF2 0x42 /* subtract floating 2 operand */
90: #define O_SUBF3 0x43 /* subtract floating 3 operand */
91: #define O_MULF2 0x44 /* multiply floating 2 operand */
92: #define O_MULF3 0x45 /* multiply floating 3 operand */
93: #define O_DIVF2 0x46 /* divide floating 2 operand */
94: #define O_DIVF3 0x47 /* divide floating 3 operand */
95: #define O_CVTFB 0x48 /* convert float to byte */
96: #define O_CVTFW 0x49 /* convert float to word */
97: #define O_CVTFL 0x4A /* convert float to long */
98: #define O_CVTRFL 0x4B /* convert rounded float to long */
99: #define O_CVTBF 0x4C /* convert byte to float */
100: #define O_CVTWF 0x4D /* convert word to float */
101: #define O_CVTLF 0x4E /* convert long to float */
102: #define O_ACBF 0x4F /* add compare and branch floating */
103: #define O_MOVF 0x50 /* move float */
104: #define O_CMPF 0x51 /* compare floating */
105: #define O_MNEGF 0x52 /* move negated floating */
106: #define O_TSTF 0x53 /* test float */
107: #define O_EMODF 0x54 /* extended modulus floating */
108: #define O_POLYF 0x55 /* evaluate polynomial floating */
109: #define O_CVTFD 0x56 /* convert float to double */
110: #define O_DUMMY57 0x57 /* RESERVED to DIGITAL */
111: #define O_ADAWI 0x58 /* add aligned word interlocked */
112: #define O_DUMMY59 0x59 /* RESERVED to DIGITAL */
113: #define O_DUMMY5a 0x5A /* RESERVED to DIGITAL */
114: #define O_DUMMY5b 0x5B /* RESERVED to DIGITAL */
115: #define O_INSQHI 0x5C /* insert into queue head, interlocked */
116: #define O_INSQTI 0x5D /* insert into queue tail, interlocked */
117: #define O_REMQHI 0x5E /* remove from queue head, interlocked */
118: #define O_REMQTI 0x5F /* remove from queue tail, interlocked */
119: #define O_ADDD2 0x60 /* add double 2 operand */
120: #define O_ADDD3 0x61 /* add double 3 operand */
121: #define O_SUBD2 0x62 /* subtract double 2 operand */
122: #define O_SUBD3 0x63 /* subtrace double 3 operand */
123: #define O_MULD2 0x64 /* multiply double 2 operand */
124: #define O_MULD3 0x65 /* multiply double 3 operand */
125: #define O_DIVD2 0x66 /* divide double 2 operand */
126: #define O_DIVD3 0x67 /* divide double 3 operand */
127: #define O_CVTDB 0x68 /* convert double to byte */
128: #define O_CVTDW 0x69 /* convert double to word */
129: #define O_CVTDL 0x6A /* convert double to long */
130: #define O_CVTRDL 0x6B /* convert rounded double to long */
131: #define O_CVTBD 0x6C /* convert byte to double */
132: #define O_CVTWD 0x6D /* convert word to double */
133: #define O_CVTLD 0x6E /* convert long to double */
134: #define O_ACBD 0x6F /* add compare and branch double */
135: #define O_MOVD 0x70 /* move double */
136: #define O_CMPD 0x71 /* compare double */
137: #define O_MNEGD 0x72 /* move negated double */
138: #define O_TSTD 0x73 /* test double */
139: #define O_EMODD 0x74 /* extended modulus double */
140: #define O_POLYD 0x75 /* evaluate polynomial double */
141: #define O_CVTDF 0x76 /* convert double to float */
142: #define O_DUMMY77 0x77 /* RESERVED to DIGITAL */
143: #define O_ASHL 0x78 /* arithmetic shift long */
144: #define O_ASHQ 0x79 /* arithmetic shift quad */
145: #define O_EMUL 0x7A /* extended multiply */
146: #define O_EDIV 0x7B /* extended divide */
147: #define O_CLRQ 0x7C /* clear quad (also CLRD) */
148: #define O_MOVQ 0x7D /* move quad */
149: #define O_MOVAQ 0x7E /* move address of quad (also MOVAD) */
150: #define O_PUSHAQ 0x7F /* push address of quad (also PUSHAD) */
151: #define O_ADDB2 0x80 /* add byte 2 operand */
152: #define O_ADDB3 0x81 /* add byte 3 operand */
153: #define O_SUBB2 0x82 /* subtract byte 2 operand */
154: #define O_SUBB3 0x83 /* subtract byte 3 operand */
155: #define O_MULB2 0x84 /* multiply byte 2 operand */
156: #define O_MULB3 0x85 /* multiply byte 3 operand */
157: #define O_DIVB2 0x86 /* divide byte 2 operand */
158: #define O_DIVB3 0x87 /* divide byte 3 operand */
159: #define O_BISB2 0x88 /* bit set byte 2 operand */
160: #define O_BISB3 0x89 /* bit set byte 3 operand */
161: #define O_BICB2 0x8A /* bit clear byte 2 operand */
162: #define O_BICB3 0x8B /* bit clear byte 3 operand */
163: #define O_XORB2 0x8C /* exclusive or byte 2 operand */
164: #define O_XORB3 0x8D /* exclusive or byte 3 operand */
165: #define O_MNEGB 0x8E /* move negated byte */
166: #define O_CASEB 0x8F /* case byte */
167: #define O_MOVB 0x90 /* move byte */
168: #define O_CMPB 0x91 /* compare byte */
169: #define O_MCOMB 0x92 /* move complemented byte */
170: #define O_BITB 0x93 /* bit test byte */
171: #define O_CLRB 0x94 /* clear byte */
172: #define O_TSTB 0x95 /* test byte */
173: #define O_INCB 0x96 /* increment byte */
174: #define O_DECB 0x97 /* decrement byte */
175: #define O_CVTBL 0x98 /* convert byte to long */
176: #define O_CVTBW 0x99 /* convert byte to word */
177: #define O_MOVZBL 0x9A /* move zero-extended byte to long */
178: #define O_MOVZBW 0x9B /* move zero-extended byte to word */
179: #define O_ROTL 0x9C /* rotate long */
180: #define O_ACBB 0x9D /* add compare and branch byte */
181: #define O_MOVAB 0x9E /* move address of byte */
182: #define O_PUSHAB 0x9F /* push address of byte */
183: #define O_ADDW2 0xA0 /* add word 2 operand */
184: #define O_ADDW3 0xA1 /* add word 3 operand */
185: #define O_SUBW2 0xA2 /* subtract word 2 operand */
186: #define O_SUBW3 0xA3 /* subtract word 3 operand */
187: #define O_MULW2 0xA4 /* multiply word 2 operand */
188: #define O_MULW3 0xA5 /* multiply word 3 operand */
189: #define O_DIVW2 0xA6 /* divide word 2 operand */
190: #define O_DIVW3 0xA7 /* divide word 3 operand */
191: #define O_BISW2 0xA8 /* bit set word 2 operand */
192: #define O_BISW3 0xA9 /* bit set word 3 operand */
193: #define O_BICW2 0xAA /* bit clear word 2 operand */
194: #define O_BICW3 0xAB /* bit clear word 3 operand */
195: #define O_XORW2 0xAC /* exclusive or word 2 operand */
196: #define O_XORW3 0xAD /* exclusive or word 3 operand */
197: #define O_MNEGW 0xAE /* move negated word */
198: #define O_CASEW 0xAF /* case word */
199: #define O_MOVW 0xB0 /* move word */
200: #define O_CMPW 0xB1 /* compare word */
201: #define O_MCOMW 0xB2 /* move complemented word */
202: #define O_BITW 0xB3 /* bit test word */
203: #define O_CLRW 0xB4 /* clear word */
204: #define O_TSTW 0xB5 /* test word */
205: #define O_INCW 0xB6 /* increment word */
206: #define O_DECW 0xB7 /* decrement word */
207: #define O_BISPSW 0xB8 /* bit set processor status word */
208: #define O_BICPSW 0xB9 /* bit clear processor status word */
209: #define O_POPR 0xBA /* pop register */
210: #define O_PUSHR 0xBB /* push register */
211: #define O_CHMK 0xBC /* change mode to kernel */
212: #define O_CHME 0xBD /* change mode to executive */
213: #define O_CHMS 0xBE /* change mode to supervisor */
214: #define O_CHMU 0xBF /* change mode to user */
215: #define O_ADDL2 0xC0 /* add long 2 operand */
216: #define O_ADDL3 0xC1 /* add long 3 operand */
217: #define O_SUBL2 0xC2 /* subtract long 2 operand */
218: #define O_SUBL3 0xC3 /* subtract long 3 operand */
219: #define O_MULL2 0xC4 /* multiply long 2 operand */
220: #define O_MULL3 0xC5 /* multiply long 3 operand */
221: #define O_DIVL2 0xC6 /* divide long 2 operand */
222: #define O_DIVL3 0xC7 /* divide long 3 operand */
223: #define O_BISL2 0xC8 /* bit set long 2 operand */
224: #define O_BISL3 0xC9 /* bit set long 3 operand */
225: #define O_BICL2 0xCA /* bit clear long 2 operand */
226: #define O_BICL3 0xCB /* bit clear long 3 operand */
227: #define O_XORL2 0xCC /* exclusive or long 2 operand */
228: #define O_XORL3 0xCD /* exclusive or long 3 operand */
229: #define O_MNEGL 0xCE /* move negated long */
230: #define O_CASEL 0xCF /* case long */
231: #define O_MOVL 0xD0 /* move long */
232: #define O_CMPL 0xD1 /* compare long */
233: #define O_MCOML 0xD2 /* move complemented long */
234: #define O_BITL 0xD3 /* bit test long */
235: #define O_CLRL 0xD4 /* clear long (also CLRF) */
236: #define O_TSTL 0xD5 /* test long */
237: #define O_INCL 0xD6 /* increment long */
238: #define O_DECL 0xD7 /* decrement long */
239: #define O_ADWC 0xD8 /* add with carry */
240: #define O_SBWC 0xD9 /* subtrace with carry */
241: #define O_MTPR 0xDA /* move to processor register */
242: #define O_MFPR 0xDB /* move from processor register */
243: #define O_MOVPSL 0xDC /* move processor status longword */
244: #define O_PUSHL 0xDD /* push long */
245: #define O_MOVAL 0xDE /* move address of long (also MOVAF) */
246: #define O_PUSHAL 0xDF /* push address of long (also PUSHAF) */
247: #define O_BBS 0xE0 /* branch on bit set */
248: #define O_BBC 0xE1 /* branch on bit clear */
249: #define O_BBSS 0xE2 /* branch on bit set and set */
250: #define O_BBCS 0xE3 /* branch on bit clear and set */
251: #define O_BBSC 0xE4 /* branch on bit set and clear */
252: #define O_BBCC 0xE5 /* branch on bit clear and clear */
253: #define O_BBSSI 0xE6 /* branch on bit set and set interlocked */
254: #define O_BBCCI 0xE7 /* branch on bit clear and clear interlocked */
255: #define O_BLBS 0xE8 /* branch on low bit set */
256: #define O_BLBC 0xE9 /* branch on low bit clear */
257: #define O_FFS 0xEA /* find first set bit */
258: #define O_FFC 0xEB /* find first clear bit */
259: #define O_CMPV 0xEC /* compare field */
260: #define O_CMPZV 0xED /* compare zero-extended field */
261: #define O_EXTV 0xEE /* extract field */
262: #define O_EXTZV 0xEF /* extract zero-extended field */
263: #define O_INSV 0xF0 /* insert field */
264: #define O_ACBL 0xF1 /* add compare and branch long */
265: #define O_AOBLSS 0xF2 /* add one and branch on less */
266: #define O_AOBLEQ 0xF3 /* add one and branch on less or equal */
267: #define O_SOBGEQ 0xF4 /* subtract one and branch on gtr or equal */
268: #define O_SOBGTR 0xF5 /* subtract one and branch on greater */
269: #define O_CVTLB 0xF6 /* convert long to byte */
270: #define O_CVTLW 0xF7 /* convert long to word */
271: #define O_ASHP 0xF8 /* arithmetic shift and round packed */
272: #define O_CVTLP 0xF9 /* convert long to packed */
273: #define O_CALLG 0xFA /* call with general argument list */
274: #define O_CALLS 0xFB /* call with stack */
275: #define O_XFC 0xFC /* extended function call */
276: #define O_ESCD 0xFD /* ESCD to DIGITAL */
277: #define O_ESCE 0xFE /* ESCE to DIGITAL */
278: #define O_ESCF 0xFF /* ESCF to DIGITAL */
279:
280: /*
281: * Addressing modes.
282: */
283:
284: #define LITSHORT 0x0 /* short literals */
285: #define LITUPTO31 0x1
286: #define LITUPTO47 0x2
287: #define LITUPTO63 0x3
288: #define INDEX 0x4 /* i[r] */
289: #define REG 0x5 /* r */
290: #define REGDEF 0x6 /* (r) */
291: #define AUTODEC 0x7 /* -(r) */
292: #define AUTOINC 0x8 /* (r)+ */
293: #define AUTOINCDEF 0x9 /* *(r)+ */
294: #define BYTEDISP 0xA /* BD(r) */
295: #define BYTEDISPDEF 0xB /* *BD(r) */
296: #define WORDDISP 0xC /* WD(r) */
297: #define WORDDISPDEF 0xD /* *WD(r) */
298: #define LONGDISP 0xE /* LD(r) */
299: #define LONGDISPDEF 0xF /* *LD(r) */
300:
301: #define is_branch_disp(arg) ((arg & ACCB) != 0)
302: #define typelen(arg) (arg & 07)
303: #define regnm(mode) (mode & 0xF)
304: #define addrmode(mode) (mode >> 4)
305:
306: /*
307: * Operator information structure.
308: */
309:
310: typedef struct {
311: char *iname;
312: char format;
313: char val;
314: char numargs;
315: char argtype[6];
316: } Optab;
317:
318: #ifndef ASINSTRS
319: #define ASINSTRS "../../bin/as/as.vax/instrs.h"
320: #endif
321:
322: #ifndef ADBINSTRS
323: #define ADBINSTRS "../../bin/adb/adb.vax/instrs.adb"
324: #endif
325:
326: #define INSTTAB
327: #include ASINSTRS
328:
329: #endif
330:
331: #define OP(name,eopcode,popdcode,nargs,a1,a2,a3,a4,a5,a6) {name,eopcode,popdcode,nargs,a1,a2,a3,a4,a5,a6}
332:
333: public Optab optab[] = {
334: #include ADBINSTRS
335: 0};
336:
337: /*
338: * Register names.
339: */
340:
341: public String regname[] = {
342: "r0", "r1", "r2", "r3", "r4", "r5", "r6", "r7",
343: "r8", "r9", "r10","r11","ap", "fp", "sp", "pc"
344: };
345:
346: /*
347: * Floating point immediate operands.
348: */
349:
350: public String fltimm[] = {
351: "0.5", "0.5625", "0.625", "0.6875", "0.75", "0.8125", "0.875", "0.9375",
352: "1.0", "1.125", "1.25", "1.375", "1.5", "1.625", "1.75", "1.875",
353: "2.0", "2.25", "2.5", "2.75", "3.0", "3.25", "3.5", "3.75",
354: "4.0", "4.5", "5.0", "5.5", "6.0", "6.5", "7.0", "7.5",
355: "8.0", "9.0", "10.0", "11.0", "12.0", "13.0", "14.0", "15.0",
356: "16.0", "18.0", "20.0", "22.0", "24.0", "26.0", "28.0", "30.0",
357: "32.0", "36.0", "40.0", "44.0", "48.0", "52.0", "56.0", "60.0",
358: "64.0", "72.0", "80.0", "88.0", "96.0", "104.0", "112.0", "120.0"
359: };
This archive runs on limited infrastructure. Preserving old code on modern bandwidth. Automated agents are requested to crawl responsibly.