1*d2201f2fSdrahn /* tc-pdp11.c - pdp11-specific -
2*d2201f2fSdrahn Copyright 2001, 2002 Free Software Foundation, Inc.
3*d2201f2fSdrahn
4*d2201f2fSdrahn This file is part of GAS, the GNU Assembler.
5*d2201f2fSdrahn
6*d2201f2fSdrahn GAS is free software; you can redistribute it and/or modify
7*d2201f2fSdrahn it under the terms of the GNU General Public License as published by
8*d2201f2fSdrahn the Free Software Foundation; either version 2, or (at your option)
9*d2201f2fSdrahn any later version.
10*d2201f2fSdrahn
11*d2201f2fSdrahn GAS is distributed in the hope that it will be useful,
12*d2201f2fSdrahn but WITHOUT ANY WARRANTY; without even the implied warranty of
13*d2201f2fSdrahn MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14*d2201f2fSdrahn GNU General Public License for more details.
15*d2201f2fSdrahn
16*d2201f2fSdrahn You should have received a copy of the GNU General Public License
17*d2201f2fSdrahn along with GAS; see the file COPYING. If not, write to
18*d2201f2fSdrahn the Free Software Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
19*d2201f2fSdrahn
20*d2201f2fSdrahn /*
21*d2201f2fSdrahn Apparently unused functions:
22*d2201f2fSdrahn md_convert_frag
23*d2201f2fSdrahn md_estimate_size_before_relax
24*d2201f2fSdrahn md_create_short_jump
25*d2201f2fSdrahn md_create_long_jump
26*d2201f2fSdrahn */
27*d2201f2fSdrahn
28*d2201f2fSdrahn #include "as.h"
29*d2201f2fSdrahn #include "safe-ctype.h"
30*d2201f2fSdrahn #include "opcode/pdp11.h"
31*d2201f2fSdrahn
32*d2201f2fSdrahn static int set_option PARAMS ((char *arg));
33*d2201f2fSdrahn static int set_cpu_model PARAMS ((char *arg));
34*d2201f2fSdrahn static int set_machine_model PARAMS ((char *arg));
35*d2201f2fSdrahn
36*d2201f2fSdrahn extern int flonum_gen2vax PARAMS ((char format_letter, FLONUM_TYPE * f,
37*d2201f2fSdrahn LITTLENUM_TYPE * words));
38*d2201f2fSdrahn
39*d2201f2fSdrahn #define TRUE 1
40*d2201f2fSdrahn #define FALSE 0
41*d2201f2fSdrahn
42*d2201f2fSdrahn /*
43*d2201f2fSdrahn * A representation for PDP-11 machine code.
44*d2201f2fSdrahn */
45*d2201f2fSdrahn struct pdp11_code
46*d2201f2fSdrahn {
47*d2201f2fSdrahn char *error;
48*d2201f2fSdrahn int code;
49*d2201f2fSdrahn int additional; /* is there an additional word? */
50*d2201f2fSdrahn int word; /* additional word, if any */
51*d2201f2fSdrahn struct
52*d2201f2fSdrahn {
53*d2201f2fSdrahn bfd_reloc_code_real_type type;
54*d2201f2fSdrahn expressionS exp;
55*d2201f2fSdrahn int pc_rel;
56*d2201f2fSdrahn } reloc;
57*d2201f2fSdrahn };
58*d2201f2fSdrahn
59*d2201f2fSdrahn /*
60*d2201f2fSdrahn * Instruction set extensions.
61*d2201f2fSdrahn *
62*d2201f2fSdrahn * If you change this from an array to something else, please update
63*d2201f2fSdrahn * the "PDP-11 instruction set extensions" comment in pdp11.h.
64*d2201f2fSdrahn */
65*d2201f2fSdrahn int pdp11_extension[PDP11_EXT_NUM];
66*d2201f2fSdrahn
67*d2201f2fSdrahn /*
68*d2201f2fSdrahn * Assembly options.
69*d2201f2fSdrahn */
70*d2201f2fSdrahn
71*d2201f2fSdrahn #define ASM_OPT_PIC 1
72*d2201f2fSdrahn #define ASM_OPT_NUM 2
73*d2201f2fSdrahn
74*d2201f2fSdrahn int asm_option[ASM_OPT_NUM];
75*d2201f2fSdrahn
76*d2201f2fSdrahn /* These chars start a comment anywhere in a source file (except inside
77*d2201f2fSdrahn another comment */
78*d2201f2fSdrahn const char comment_chars[] = "#/";
79*d2201f2fSdrahn
80*d2201f2fSdrahn /* These chars only start a comment at the beginning of a line. */
81*d2201f2fSdrahn const char line_comment_chars[] = "#/";
82*d2201f2fSdrahn
83*d2201f2fSdrahn const char line_separator_chars[] = ";";
84*d2201f2fSdrahn
85*d2201f2fSdrahn /* Chars that can be used to separate mant from exp in floating point nums */
86*d2201f2fSdrahn const char EXP_CHARS[] = "eE";
87*d2201f2fSdrahn
88*d2201f2fSdrahn /* Chars that mean this number is a floating point constant */
89*d2201f2fSdrahn /* as in 0f123.456 */
90*d2201f2fSdrahn /* or 0H1.234E-12 (see exp chars above) */
91*d2201f2fSdrahn const char FLT_CHARS[] = "dDfF";
92*d2201f2fSdrahn
93*d2201f2fSdrahn void pseudo_even (int);
94*d2201f2fSdrahn void pseudo_bss (int);
95*d2201f2fSdrahn
96*d2201f2fSdrahn const pseudo_typeS md_pseudo_table[] =
97*d2201f2fSdrahn {
98*d2201f2fSdrahn { "bss", pseudo_bss, 0 },
99*d2201f2fSdrahn { "even", pseudo_even, 0 },
100*d2201f2fSdrahn { 0, 0, 0 },
101*d2201f2fSdrahn };
102*d2201f2fSdrahn
103*d2201f2fSdrahn static void
init_defaults()104*d2201f2fSdrahn init_defaults ()
105*d2201f2fSdrahn {
106*d2201f2fSdrahn static int first = 1;
107*d2201f2fSdrahn
108*d2201f2fSdrahn if (first)
109*d2201f2fSdrahn {
110*d2201f2fSdrahn set_option ("all-extensions");
111*d2201f2fSdrahn set_option ("pic");
112*d2201f2fSdrahn first = 0;
113*d2201f2fSdrahn }
114*d2201f2fSdrahn }
115*d2201f2fSdrahn
116*d2201f2fSdrahn static struct hash_control *insn_hash = NULL;
117*d2201f2fSdrahn
118*d2201f2fSdrahn void
md_begin()119*d2201f2fSdrahn md_begin ()
120*d2201f2fSdrahn {
121*d2201f2fSdrahn int i;
122*d2201f2fSdrahn
123*d2201f2fSdrahn init_defaults ();
124*d2201f2fSdrahn
125*d2201f2fSdrahn insn_hash = hash_new ();
126*d2201f2fSdrahn if (insn_hash == NULL)
127*d2201f2fSdrahn as_fatal ("Virtual memory exhausted");
128*d2201f2fSdrahn
129*d2201f2fSdrahn for (i = 0; i < pdp11_num_opcodes; i++)
130*d2201f2fSdrahn hash_insert (insn_hash, pdp11_opcodes[i].name, (PTR)(pdp11_opcodes + i));
131*d2201f2fSdrahn for (i = 0; i < pdp11_num_aliases; i++)
132*d2201f2fSdrahn hash_insert (insn_hash, pdp11_aliases[i].name, (PTR)(pdp11_aliases + i));
133*d2201f2fSdrahn }
134*d2201f2fSdrahn
135*d2201f2fSdrahn void
md_number_to_chars(con,value,nbytes)136*d2201f2fSdrahn md_number_to_chars (con, value, nbytes)
137*d2201f2fSdrahn char con[];
138*d2201f2fSdrahn valueT value;
139*d2201f2fSdrahn int nbytes;
140*d2201f2fSdrahn {
141*d2201f2fSdrahn /* On a PDP-11, 0x1234 is stored as "\x12\x34", and
142*d2201f2fSdrahn * 0x12345678 is stored as "\x56\x78\x12\x34". It's
143*d2201f2fSdrahn * anyones guess what 0x123456 would be stored like.
144*d2201f2fSdrahn */
145*d2201f2fSdrahn
146*d2201f2fSdrahn switch (nbytes)
147*d2201f2fSdrahn {
148*d2201f2fSdrahn case 0:
149*d2201f2fSdrahn break;
150*d2201f2fSdrahn case 1:
151*d2201f2fSdrahn con[0] = value & 0xff;
152*d2201f2fSdrahn break;
153*d2201f2fSdrahn case 2:
154*d2201f2fSdrahn con[0] = value & 0xff;
155*d2201f2fSdrahn con[1] = (value >> 8) & 0xff;
156*d2201f2fSdrahn break;
157*d2201f2fSdrahn case 4:
158*d2201f2fSdrahn con[0] = (value >> 16) & 0xff;
159*d2201f2fSdrahn con[1] = (value >> 24) & 0xff;
160*d2201f2fSdrahn con[2] = value & 0xff;
161*d2201f2fSdrahn con[3] = (value >> 8) & 0xff;
162*d2201f2fSdrahn break;
163*d2201f2fSdrahn default:
164*d2201f2fSdrahn BAD_CASE (nbytes);
165*d2201f2fSdrahn }
166*d2201f2fSdrahn }
167*d2201f2fSdrahn
168*d2201f2fSdrahn /* Fix up some data or instructions after we find out the value of a symbol
169*d2201f2fSdrahn that they reference. Knows about order of bytes in address. */
170*d2201f2fSdrahn
171*d2201f2fSdrahn void
md_apply_fix3(fixP,valP,seg)172*d2201f2fSdrahn md_apply_fix3 (fixP, valP, seg)
173*d2201f2fSdrahn fixS *fixP;
174*d2201f2fSdrahn valueT * valP;
175*d2201f2fSdrahn segT seg ATTRIBUTE_UNUSED;
176*d2201f2fSdrahn {
177*d2201f2fSdrahn valueT code;
178*d2201f2fSdrahn valueT mask;
179*d2201f2fSdrahn valueT val = * valP;
180*d2201f2fSdrahn char *buf;
181*d2201f2fSdrahn int shift;
182*d2201f2fSdrahn int size;
183*d2201f2fSdrahn
184*d2201f2fSdrahn buf = fixP->fx_where + fixP->fx_frag->fr_literal;
185*d2201f2fSdrahn size = fixP->fx_size;
186*d2201f2fSdrahn code = md_chars_to_number (buf, size);
187*d2201f2fSdrahn
188*d2201f2fSdrahn switch (fixP->fx_r_type)
189*d2201f2fSdrahn {
190*d2201f2fSdrahn case BFD_RELOC_16:
191*d2201f2fSdrahn case BFD_RELOC_16_PCREL:
192*d2201f2fSdrahn mask = 0xffff;
193*d2201f2fSdrahn shift = 0;
194*d2201f2fSdrahn break;
195*d2201f2fSdrahn case BFD_RELOC_PDP11_DISP_8_PCREL:
196*d2201f2fSdrahn mask = 0x00ff;
197*d2201f2fSdrahn shift = 1;
198*d2201f2fSdrahn break;
199*d2201f2fSdrahn case BFD_RELOC_PDP11_DISP_6_PCREL:
200*d2201f2fSdrahn mask = 0x003f;
201*d2201f2fSdrahn shift = 1;
202*d2201f2fSdrahn break;
203*d2201f2fSdrahn default:
204*d2201f2fSdrahn BAD_CASE (fixP->fx_r_type);
205*d2201f2fSdrahn }
206*d2201f2fSdrahn
207*d2201f2fSdrahn if (fixP->fx_addsy != NULL)
208*d2201f2fSdrahn val += symbol_get_bfdsym (fixP->fx_addsy)->section->vma;
209*d2201f2fSdrahn /* *value += fixP->fx_addsy->bsym->section->vma; */
210*d2201f2fSdrahn
211*d2201f2fSdrahn code &= ~mask;
212*d2201f2fSdrahn code |= (val >> shift) & mask;
213*d2201f2fSdrahn number_to_chars_littleendian (buf, code, size);
214*d2201f2fSdrahn
215*d2201f2fSdrahn if (fixP->fx_addsy == NULL && fixP->fx_pcrel == 0)
216*d2201f2fSdrahn fixP->fx_done = 1;
217*d2201f2fSdrahn }
218*d2201f2fSdrahn
219*d2201f2fSdrahn long
md_chars_to_number(con,nbytes)220*d2201f2fSdrahn md_chars_to_number (con, nbytes)
221*d2201f2fSdrahn unsigned char con[]; /* Low order byte 1st. */
222*d2201f2fSdrahn int nbytes; /* Number of bytes in the input. */
223*d2201f2fSdrahn {
224*d2201f2fSdrahn /* On a PDP-11, 0x1234 is stored as "\x12\x34", and
225*d2201f2fSdrahn * 0x12345678 is stored as "\x56\x78\x12\x34". It's
226*d2201f2fSdrahn * anyones guess what 0x123456 would be stored like.
227*d2201f2fSdrahn */
228*d2201f2fSdrahn
229*d2201f2fSdrahn switch (nbytes)
230*d2201f2fSdrahn {
231*d2201f2fSdrahn case 0:
232*d2201f2fSdrahn return 0;
233*d2201f2fSdrahn case 1:
234*d2201f2fSdrahn return con[0];
235*d2201f2fSdrahn case 2:
236*d2201f2fSdrahn return (con[1] << BITS_PER_CHAR) | con[0];
237*d2201f2fSdrahn case 4:
238*d2201f2fSdrahn return
239*d2201f2fSdrahn (((con[1] << BITS_PER_CHAR) | con[0]) << (2 * BITS_PER_CHAR)) |
240*d2201f2fSdrahn ((con[3] << BITS_PER_CHAR) | con[2]);
241*d2201f2fSdrahn default:
242*d2201f2fSdrahn BAD_CASE (nbytes);
243*d2201f2fSdrahn return 0;
244*d2201f2fSdrahn }
245*d2201f2fSdrahn }
246*d2201f2fSdrahn
247*d2201f2fSdrahn static char *
skip_whitespace(char * str)248*d2201f2fSdrahn skip_whitespace (char *str)
249*d2201f2fSdrahn {
250*d2201f2fSdrahn while (*str == ' ' || *str == '\t')
251*d2201f2fSdrahn str++;
252*d2201f2fSdrahn return str;
253*d2201f2fSdrahn }
254*d2201f2fSdrahn
255*d2201f2fSdrahn static char *
find_whitespace(char * str)256*d2201f2fSdrahn find_whitespace (char *str)
257*d2201f2fSdrahn {
258*d2201f2fSdrahn while (*str != ' ' && *str != '\t' && *str != 0)
259*d2201f2fSdrahn str++;
260*d2201f2fSdrahn return str;
261*d2201f2fSdrahn }
262*d2201f2fSdrahn
263*d2201f2fSdrahn static char *
parse_reg(char * str,struct pdp11_code * operand)264*d2201f2fSdrahn parse_reg (char *str, struct pdp11_code *operand)
265*d2201f2fSdrahn {
266*d2201f2fSdrahn str = skip_whitespace (str);
267*d2201f2fSdrahn if (TOLOWER (*str) == 'r')
268*d2201f2fSdrahn {
269*d2201f2fSdrahn str++;
270*d2201f2fSdrahn switch (*str)
271*d2201f2fSdrahn {
272*d2201f2fSdrahn case '0': case '1': case '2': case '3':
273*d2201f2fSdrahn case '4': case '5': case '6': case '7':
274*d2201f2fSdrahn operand->code = *str - '0';
275*d2201f2fSdrahn str++;
276*d2201f2fSdrahn break;
277*d2201f2fSdrahn default:
278*d2201f2fSdrahn operand->error = "Bad register name";
279*d2201f2fSdrahn return str - 1;
280*d2201f2fSdrahn }
281*d2201f2fSdrahn }
282*d2201f2fSdrahn else if (strncmp (str, "sp", 2) == 0 ||
283*d2201f2fSdrahn strncmp (str, "SP", 2) == 0)
284*d2201f2fSdrahn {
285*d2201f2fSdrahn operand->code = 6;
286*d2201f2fSdrahn str += 2;
287*d2201f2fSdrahn }
288*d2201f2fSdrahn else if (strncmp (str, "pc", 2) == 0 ||
289*d2201f2fSdrahn strncmp (str, "PC", 2) == 0)
290*d2201f2fSdrahn {
291*d2201f2fSdrahn operand->code = 7;
292*d2201f2fSdrahn str += 2;
293*d2201f2fSdrahn }
294*d2201f2fSdrahn else
295*d2201f2fSdrahn {
296*d2201f2fSdrahn operand->error = "Bad register name";
297*d2201f2fSdrahn return str;
298*d2201f2fSdrahn }
299*d2201f2fSdrahn
300*d2201f2fSdrahn return str;
301*d2201f2fSdrahn }
302*d2201f2fSdrahn
303*d2201f2fSdrahn static char *
parse_ac5(char * str,struct pdp11_code * operand)304*d2201f2fSdrahn parse_ac5 (char *str, struct pdp11_code *operand)
305*d2201f2fSdrahn {
306*d2201f2fSdrahn str = skip_whitespace (str);
307*d2201f2fSdrahn if (strncmp (str, "fr", 2) == 0 ||
308*d2201f2fSdrahn strncmp (str, "FR", 2) == 0 ||
309*d2201f2fSdrahn strncmp (str, "ac", 2) == 0 ||
310*d2201f2fSdrahn strncmp (str, "AC", 2) == 0)
311*d2201f2fSdrahn {
312*d2201f2fSdrahn str += 2;
313*d2201f2fSdrahn switch (*str)
314*d2201f2fSdrahn {
315*d2201f2fSdrahn case '0': case '1': case '2': case '3':
316*d2201f2fSdrahn case '4': case '5':
317*d2201f2fSdrahn operand->code = *str - '0';
318*d2201f2fSdrahn str++;
319*d2201f2fSdrahn break;
320*d2201f2fSdrahn default:
321*d2201f2fSdrahn operand->error = "Bad register name";
322*d2201f2fSdrahn return str - 2;
323*d2201f2fSdrahn }
324*d2201f2fSdrahn }
325*d2201f2fSdrahn else
326*d2201f2fSdrahn {
327*d2201f2fSdrahn operand->error = "Bad register name";
328*d2201f2fSdrahn return str;
329*d2201f2fSdrahn }
330*d2201f2fSdrahn
331*d2201f2fSdrahn return str;
332*d2201f2fSdrahn }
333*d2201f2fSdrahn
334*d2201f2fSdrahn static char *
parse_ac(char * str,struct pdp11_code * operand)335*d2201f2fSdrahn parse_ac (char *str, struct pdp11_code *operand)
336*d2201f2fSdrahn {
337*d2201f2fSdrahn str = parse_ac5 (str, operand);
338*d2201f2fSdrahn if (!operand->error && operand->code > 3)
339*d2201f2fSdrahn {
340*d2201f2fSdrahn operand->error = "Bad register name";
341*d2201f2fSdrahn return str - 3;
342*d2201f2fSdrahn }
343*d2201f2fSdrahn
344*d2201f2fSdrahn return str;
345*d2201f2fSdrahn }
346*d2201f2fSdrahn
347*d2201f2fSdrahn static char *
parse_expression(char * str,struct pdp11_code * operand)348*d2201f2fSdrahn parse_expression (char *str, struct pdp11_code *operand)
349*d2201f2fSdrahn {
350*d2201f2fSdrahn char *save_input_line_pointer;
351*d2201f2fSdrahn segT seg;
352*d2201f2fSdrahn
353*d2201f2fSdrahn save_input_line_pointer = input_line_pointer;
354*d2201f2fSdrahn input_line_pointer = str;
355*d2201f2fSdrahn seg = expression (&operand->reloc.exp);
356*d2201f2fSdrahn if (seg == NULL)
357*d2201f2fSdrahn {
358*d2201f2fSdrahn input_line_pointer = save_input_line_pointer;
359*d2201f2fSdrahn operand->error = "Error in expression";
360*d2201f2fSdrahn return str;
361*d2201f2fSdrahn }
362*d2201f2fSdrahn
363*d2201f2fSdrahn str = input_line_pointer;
364*d2201f2fSdrahn input_line_pointer = save_input_line_pointer;
365*d2201f2fSdrahn
366*d2201f2fSdrahn operand->reloc.pc_rel = 0;
367*d2201f2fSdrahn
368*d2201f2fSdrahn #if 0
369*d2201f2fSdrahn /* FIXME: what follows is broken badly. You can't deal with differences
370*d2201f2fSdrahn in radix conventions this way, because of symbolic constants, constant
371*d2201f2fSdrahn expressions made up of pieces of differing radix, etc. The only
372*d2201f2fSdrahn choices are to change ../expr.c to know about pdp11 conventions, or
373*d2201f2fSdrahn to accept the fact that gas will use consistent conventions that differ
374*d2201f2fSdrahn from those of traditional pdp11 assemblers. For now, I've
375*d2201f2fSdrahn chosen the latter. paul koning, 12/23/2001
376*d2201f2fSdrahn */
377*d2201f2fSdrahn if (operand->reloc.exp.X_op == O_constant)
378*d2201f2fSdrahn {
379*d2201f2fSdrahn if (*str == '.')
380*d2201f2fSdrahn str++;
381*d2201f2fSdrahn else
382*d2201f2fSdrahn {
383*d2201f2fSdrahn /* FIXME: buffer overflow! */
384*d2201f2fSdrahn char buf[100];
385*d2201f2fSdrahn char *end;
386*d2201f2fSdrahn
387*d2201f2fSdrahn sprintf (buf, "%ld", operand->reloc.exp.X_add_number);
388*d2201f2fSdrahn operand->reloc.exp.X_add_number = strtol (buf, &end, 8);
389*d2201f2fSdrahn }
390*d2201f2fSdrahn }
391*d2201f2fSdrahn #endif
392*d2201f2fSdrahn return str;
393*d2201f2fSdrahn }
394*d2201f2fSdrahn
395*d2201f2fSdrahn static char *
parse_op_no_deferred(char * str,struct pdp11_code * operand)396*d2201f2fSdrahn parse_op_no_deferred (char *str, struct pdp11_code *operand)
397*d2201f2fSdrahn {
398*d2201f2fSdrahn LITTLENUM_TYPE literal_float[2];
399*d2201f2fSdrahn
400*d2201f2fSdrahn str = skip_whitespace (str);
401*d2201f2fSdrahn
402*d2201f2fSdrahn switch (*str)
403*d2201f2fSdrahn {
404*d2201f2fSdrahn case '(': /* (rn) and (rn)+ */
405*d2201f2fSdrahn str = parse_reg (str + 1, operand);
406*d2201f2fSdrahn if (operand->error)
407*d2201f2fSdrahn return str;
408*d2201f2fSdrahn str = skip_whitespace (str);
409*d2201f2fSdrahn if (*str != ')')
410*d2201f2fSdrahn {
411*d2201f2fSdrahn operand->error = "Missing ')'";
412*d2201f2fSdrahn return str;
413*d2201f2fSdrahn }
414*d2201f2fSdrahn str++;
415*d2201f2fSdrahn if (*str == '+')
416*d2201f2fSdrahn {
417*d2201f2fSdrahn operand->code |= 020;
418*d2201f2fSdrahn str++;
419*d2201f2fSdrahn }
420*d2201f2fSdrahn else
421*d2201f2fSdrahn {
422*d2201f2fSdrahn operand->code |= 010;
423*d2201f2fSdrahn }
424*d2201f2fSdrahn break;
425*d2201f2fSdrahn
426*d2201f2fSdrahn case '#': /* immediate */
427*d2201f2fSdrahn case '$':
428*d2201f2fSdrahn str = parse_expression (str + 1, operand);
429*d2201f2fSdrahn if (operand->error)
430*d2201f2fSdrahn return str;
431*d2201f2fSdrahn operand->additional = TRUE;
432*d2201f2fSdrahn operand->word = operand->reloc.exp.X_add_number;
433*d2201f2fSdrahn switch (operand->reloc.exp.X_op)
434*d2201f2fSdrahn {
435*d2201f2fSdrahn case O_constant:
436*d2201f2fSdrahn break;
437*d2201f2fSdrahn case O_symbol:
438*d2201f2fSdrahn case O_add:
439*d2201f2fSdrahn case O_subtract:
440*d2201f2fSdrahn operand->reloc.type = BFD_RELOC_16;
441*d2201f2fSdrahn operand->reloc.pc_rel = 0;
442*d2201f2fSdrahn break;
443*d2201f2fSdrahn case O_big:
444*d2201f2fSdrahn if (operand->reloc.exp.X_add_number > 0)
445*d2201f2fSdrahn {
446*d2201f2fSdrahn operand->error = "Error in expression";
447*d2201f2fSdrahn break;
448*d2201f2fSdrahn }
449*d2201f2fSdrahn /* it's a floating literal... */
450*d2201f2fSdrahn know (operand->reloc.exp.X_add_number < 0);
451*d2201f2fSdrahn flonum_gen2vax ('f', &generic_floating_point_number, literal_float);
452*d2201f2fSdrahn operand->word = literal_float[0];
453*d2201f2fSdrahn if (literal_float[1] != 0)
454*d2201f2fSdrahn as_warn (_("Low order bits truncated in immediate float operand"));
455*d2201f2fSdrahn break;
456*d2201f2fSdrahn default:
457*d2201f2fSdrahn operand->error = "Error in expression";
458*d2201f2fSdrahn break;
459*d2201f2fSdrahn }
460*d2201f2fSdrahn operand->code = 027;
461*d2201f2fSdrahn break;
462*d2201f2fSdrahn
463*d2201f2fSdrahn default: /* label, d(rn), -(rn) */
464*d2201f2fSdrahn {
465*d2201f2fSdrahn char *old = str;
466*d2201f2fSdrahn
467*d2201f2fSdrahn if (strncmp (str, "-(", 2) == 0) /* -(rn) */
468*d2201f2fSdrahn {
469*d2201f2fSdrahn str = parse_reg (str + 2, operand);
470*d2201f2fSdrahn if (operand->error)
471*d2201f2fSdrahn return str;
472*d2201f2fSdrahn str = skip_whitespace (str);
473*d2201f2fSdrahn if (*str != ')')
474*d2201f2fSdrahn {
475*d2201f2fSdrahn operand->error = "Missing ')'";
476*d2201f2fSdrahn return str;
477*d2201f2fSdrahn }
478*d2201f2fSdrahn operand->code |= 040;
479*d2201f2fSdrahn str++;
480*d2201f2fSdrahn break;
481*d2201f2fSdrahn }
482*d2201f2fSdrahn
483*d2201f2fSdrahn str = parse_expression (str, operand);
484*d2201f2fSdrahn if (operand->error)
485*d2201f2fSdrahn return str;
486*d2201f2fSdrahn
487*d2201f2fSdrahn str = skip_whitespace (str);
488*d2201f2fSdrahn
489*d2201f2fSdrahn if (*str != '(') /* label */
490*d2201f2fSdrahn {
491*d2201f2fSdrahn if (operand->reloc.exp.X_op != O_symbol)
492*d2201f2fSdrahn {
493*d2201f2fSdrahn operand->error = "Label expected";
494*d2201f2fSdrahn return old;
495*d2201f2fSdrahn }
496*d2201f2fSdrahn operand->code = 067;
497*d2201f2fSdrahn operand->additional = 1;
498*d2201f2fSdrahn operand->word = 0;
499*d2201f2fSdrahn operand->reloc.type = BFD_RELOC_16_PCREL;
500*d2201f2fSdrahn operand->reloc.pc_rel = 1;
501*d2201f2fSdrahn break;
502*d2201f2fSdrahn }
503*d2201f2fSdrahn
504*d2201f2fSdrahn str++; /* d(rn) */
505*d2201f2fSdrahn str = parse_reg (str, operand);
506*d2201f2fSdrahn if (operand->error)
507*d2201f2fSdrahn return str;
508*d2201f2fSdrahn
509*d2201f2fSdrahn str = skip_whitespace (str);
510*d2201f2fSdrahn
511*d2201f2fSdrahn if (*str != ')')
512*d2201f2fSdrahn {
513*d2201f2fSdrahn operand->error = "Missing ')'";
514*d2201f2fSdrahn return str;
515*d2201f2fSdrahn }
516*d2201f2fSdrahn
517*d2201f2fSdrahn str++;
518*d2201f2fSdrahn operand->additional = TRUE;
519*d2201f2fSdrahn operand->code |= 060;
520*d2201f2fSdrahn switch (operand->reloc.exp.X_op)
521*d2201f2fSdrahn {
522*d2201f2fSdrahn case O_symbol:
523*d2201f2fSdrahn operand->word = 0;
524*d2201f2fSdrahn operand->reloc.pc_rel = 1;
525*d2201f2fSdrahn break;
526*d2201f2fSdrahn case O_constant:
527*d2201f2fSdrahn if ((operand->code & 7) == 7)
528*d2201f2fSdrahn {
529*d2201f2fSdrahn operand->reloc.pc_rel = 1;
530*d2201f2fSdrahn operand->word = operand->reloc.exp.X_add_number;
531*d2201f2fSdrahn }
532*d2201f2fSdrahn else
533*d2201f2fSdrahn {
534*d2201f2fSdrahn operand->word = operand->reloc.exp.X_add_number;
535*d2201f2fSdrahn }
536*d2201f2fSdrahn break;
537*d2201f2fSdrahn default:
538*d2201f2fSdrahn BAD_CASE (operand->reloc.exp.X_op);
539*d2201f2fSdrahn }
540*d2201f2fSdrahn break;
541*d2201f2fSdrahn }
542*d2201f2fSdrahn }
543*d2201f2fSdrahn
544*d2201f2fSdrahn return str;
545*d2201f2fSdrahn }
546*d2201f2fSdrahn
547*d2201f2fSdrahn static char *
parse_op_noreg(char * str,struct pdp11_code * operand)548*d2201f2fSdrahn parse_op_noreg (char *str, struct pdp11_code *operand)
549*d2201f2fSdrahn {
550*d2201f2fSdrahn str = skip_whitespace (str);
551*d2201f2fSdrahn operand->error = NULL;
552*d2201f2fSdrahn
553*d2201f2fSdrahn if (*str == '@' || *str == '*')
554*d2201f2fSdrahn {
555*d2201f2fSdrahn str = parse_op_no_deferred (str + 1, operand);
556*d2201f2fSdrahn if (operand->error)
557*d2201f2fSdrahn return str;
558*d2201f2fSdrahn operand->code |= 010;
559*d2201f2fSdrahn }
560*d2201f2fSdrahn else
561*d2201f2fSdrahn str = parse_op_no_deferred (str, operand);
562*d2201f2fSdrahn
563*d2201f2fSdrahn return str;
564*d2201f2fSdrahn }
565*d2201f2fSdrahn
566*d2201f2fSdrahn static char *
parse_op(char * str,struct pdp11_code * operand)567*d2201f2fSdrahn parse_op (char *str, struct pdp11_code *operand)
568*d2201f2fSdrahn {
569*d2201f2fSdrahn str = skip_whitespace (str);
570*d2201f2fSdrahn
571*d2201f2fSdrahn str = parse_reg (str, operand);
572*d2201f2fSdrahn if (!operand->error)
573*d2201f2fSdrahn return str;
574*d2201f2fSdrahn
575*d2201f2fSdrahn operand->error = NULL;
576*d2201f2fSdrahn parse_ac5 (str, operand);
577*d2201f2fSdrahn if (!operand->error)
578*d2201f2fSdrahn {
579*d2201f2fSdrahn operand->error = "Float AC not legal as integer operand";
580*d2201f2fSdrahn return str;
581*d2201f2fSdrahn }
582*d2201f2fSdrahn
583*d2201f2fSdrahn return parse_op_noreg (str, operand);
584*d2201f2fSdrahn }
585*d2201f2fSdrahn
586*d2201f2fSdrahn static char *
parse_fop(char * str,struct pdp11_code * operand)587*d2201f2fSdrahn parse_fop (char *str, struct pdp11_code *operand)
588*d2201f2fSdrahn {
589*d2201f2fSdrahn str = skip_whitespace (str);
590*d2201f2fSdrahn
591*d2201f2fSdrahn str = parse_ac5 (str, operand);
592*d2201f2fSdrahn if (!operand->error)
593*d2201f2fSdrahn return str;
594*d2201f2fSdrahn
595*d2201f2fSdrahn operand->error = NULL;
596*d2201f2fSdrahn parse_reg (str, operand);
597*d2201f2fSdrahn if (!operand->error)
598*d2201f2fSdrahn {
599*d2201f2fSdrahn operand->error = "General register not legal as float operand";
600*d2201f2fSdrahn return str;
601*d2201f2fSdrahn }
602*d2201f2fSdrahn
603*d2201f2fSdrahn return parse_op_noreg (str, operand);
604*d2201f2fSdrahn }
605*d2201f2fSdrahn
606*d2201f2fSdrahn static char *
parse_separator(char * str,int * error)607*d2201f2fSdrahn parse_separator (char *str, int *error)
608*d2201f2fSdrahn {
609*d2201f2fSdrahn str = skip_whitespace (str);
610*d2201f2fSdrahn *error = (*str != ',');
611*d2201f2fSdrahn if (!*error)
612*d2201f2fSdrahn str++;
613*d2201f2fSdrahn return str;
614*d2201f2fSdrahn }
615*d2201f2fSdrahn
616*d2201f2fSdrahn void
md_assemble(instruction_string)617*d2201f2fSdrahn md_assemble (instruction_string)
618*d2201f2fSdrahn char *instruction_string;
619*d2201f2fSdrahn {
620*d2201f2fSdrahn const struct pdp11_opcode *op;
621*d2201f2fSdrahn struct pdp11_code insn, op1, op2;
622*d2201f2fSdrahn int error;
623*d2201f2fSdrahn int size;
624*d2201f2fSdrahn char *err = NULL;
625*d2201f2fSdrahn char *str;
626*d2201f2fSdrahn char *p;
627*d2201f2fSdrahn char c;
628*d2201f2fSdrahn
629*d2201f2fSdrahn str = skip_whitespace (instruction_string);
630*d2201f2fSdrahn p = find_whitespace (str);
631*d2201f2fSdrahn if (p - str == 0)
632*d2201f2fSdrahn {
633*d2201f2fSdrahn as_bad ("No instruction found");
634*d2201f2fSdrahn return;
635*d2201f2fSdrahn }
636*d2201f2fSdrahn
637*d2201f2fSdrahn c = *p;
638*d2201f2fSdrahn *p = '\0';
639*d2201f2fSdrahn op = (struct pdp11_opcode *)hash_find (insn_hash, str);
640*d2201f2fSdrahn *p = c;
641*d2201f2fSdrahn if (op == 0)
642*d2201f2fSdrahn {
643*d2201f2fSdrahn #if 0
644*d2201f2fSdrahn op1.error = NULL;
645*d2201f2fSdrahn op1.additional = FALSE;
646*d2201f2fSdrahn op1.reloc.type = BFD_RELOC_NONE;
647*d2201f2fSdrahn op1.code = 0;
648*d2201f2fSdrahn op1.word = 0;
649*d2201f2fSdrahn str = parse_expression (str, &op1);
650*d2201f2fSdrahn if (op1.error)
651*d2201f2fSdrahn {
652*d2201f2fSdrahn as_bad (op1.error);
653*d2201f2fSdrahn return;
654*d2201f2fSdrahn }
655*d2201f2fSdrahn
656*d2201f2fSdrahn {
657*d2201f2fSdrahn char *to = frag_more (2);
658*d2201f2fSdrahn
659*d2201f2fSdrahn md_number_to_chars (to, op1.code, 2);
660*d2201f2fSdrahn if (insn.reloc.type != BFD_RELOC_NONE)
661*d2201f2fSdrahn fix_new_exp (frag_now, to - frag_now->fr_literal, 2,
662*d2201f2fSdrahn &insn.reloc.exp, insn.reloc.pc_rel, insn.reloc.type);
663*d2201f2fSdrahn }
664*d2201f2fSdrahn #else
665*d2201f2fSdrahn as_bad (_("Unknown instruction '%s'"), str);
666*d2201f2fSdrahn #endif
667*d2201f2fSdrahn
668*d2201f2fSdrahn return;
669*d2201f2fSdrahn }
670*d2201f2fSdrahn
671*d2201f2fSdrahn if (!pdp11_extension[op->extension])
672*d2201f2fSdrahn {
673*d2201f2fSdrahn as_warn ("Unsupported instruction set extension: %s", op->name);
674*d2201f2fSdrahn return;
675*d2201f2fSdrahn }
676*d2201f2fSdrahn
677*d2201f2fSdrahn insn.error = NULL;
678*d2201f2fSdrahn insn.code = op->opcode;
679*d2201f2fSdrahn insn.reloc.type = BFD_RELOC_NONE;
680*d2201f2fSdrahn op1.error = NULL;
681*d2201f2fSdrahn op1.additional = FALSE;
682*d2201f2fSdrahn op1.reloc.type = BFD_RELOC_NONE;
683*d2201f2fSdrahn op2.error = NULL;
684*d2201f2fSdrahn op2.additional = FALSE;
685*d2201f2fSdrahn op2.reloc.type = BFD_RELOC_NONE;
686*d2201f2fSdrahn
687*d2201f2fSdrahn str = p;
688*d2201f2fSdrahn size = 2;
689*d2201f2fSdrahn
690*d2201f2fSdrahn switch (op->type)
691*d2201f2fSdrahn {
692*d2201f2fSdrahn case PDP11_OPCODE_NO_OPS:
693*d2201f2fSdrahn str = skip_whitespace (str);
694*d2201f2fSdrahn if (*str == 0)
695*d2201f2fSdrahn str = "";
696*d2201f2fSdrahn break;
697*d2201f2fSdrahn
698*d2201f2fSdrahn case PDP11_OPCODE_IMM3:
699*d2201f2fSdrahn case PDP11_OPCODE_IMM6:
700*d2201f2fSdrahn case PDP11_OPCODE_IMM8:
701*d2201f2fSdrahn str = skip_whitespace (str);
702*d2201f2fSdrahn if (*str == '#' || *str == '$')
703*d2201f2fSdrahn str++;
704*d2201f2fSdrahn str = parse_expression (str, &op1);
705*d2201f2fSdrahn if (op1.error)
706*d2201f2fSdrahn break;
707*d2201f2fSdrahn if (op1.reloc.exp.X_op != O_constant || op1.reloc.type != BFD_RELOC_NONE)
708*d2201f2fSdrahn {
709*d2201f2fSdrahn op1.error = "operand is not an absolute constant";
710*d2201f2fSdrahn break;
711*d2201f2fSdrahn }
712*d2201f2fSdrahn switch (op->type)
713*d2201f2fSdrahn {
714*d2201f2fSdrahn case PDP11_OPCODE_IMM3:
715*d2201f2fSdrahn if (op1.reloc.exp.X_add_number & ~7)
716*d2201f2fSdrahn {
717*d2201f2fSdrahn op1.error = "3-bit immediate out of range";
718*d2201f2fSdrahn break;
719*d2201f2fSdrahn }
720*d2201f2fSdrahn break;
721*d2201f2fSdrahn case PDP11_OPCODE_IMM6:
722*d2201f2fSdrahn if (op1.reloc.exp.X_add_number & ~0x3f)
723*d2201f2fSdrahn {
724*d2201f2fSdrahn op1.error = "6-bit immediate out of range";
725*d2201f2fSdrahn break;
726*d2201f2fSdrahn }
727*d2201f2fSdrahn break;
728*d2201f2fSdrahn case PDP11_OPCODE_IMM8:
729*d2201f2fSdrahn if (op1.reloc.exp.X_add_number & ~0xff)
730*d2201f2fSdrahn {
731*d2201f2fSdrahn op1.error = "8-bit immediate out of range";
732*d2201f2fSdrahn break;
733*d2201f2fSdrahn }
734*d2201f2fSdrahn break;
735*d2201f2fSdrahn }
736*d2201f2fSdrahn insn.code |= op1.reloc.exp.X_add_number;
737*d2201f2fSdrahn break;
738*d2201f2fSdrahn
739*d2201f2fSdrahn case PDP11_OPCODE_DISPL:
740*d2201f2fSdrahn {
741*d2201f2fSdrahn char *new;
742*d2201f2fSdrahn new = parse_expression (str, &op1);
743*d2201f2fSdrahn op1.code = 0;
744*d2201f2fSdrahn op1.reloc.pc_rel = 1;
745*d2201f2fSdrahn op1.reloc.type = BFD_RELOC_PDP11_DISP_8_PCREL;
746*d2201f2fSdrahn if (op1.reloc.exp.X_op != O_symbol)
747*d2201f2fSdrahn {
748*d2201f2fSdrahn op1.error = "Symbol expected";
749*d2201f2fSdrahn break;
750*d2201f2fSdrahn }
751*d2201f2fSdrahn if (op1.code & ~0xff)
752*d2201f2fSdrahn {
753*d2201f2fSdrahn err = "8-bit displacement out of range";
754*d2201f2fSdrahn break;
755*d2201f2fSdrahn }
756*d2201f2fSdrahn str = new;
757*d2201f2fSdrahn insn.code |= op1.code;
758*d2201f2fSdrahn insn.reloc = op1.reloc;
759*d2201f2fSdrahn }
760*d2201f2fSdrahn break;
761*d2201f2fSdrahn
762*d2201f2fSdrahn case PDP11_OPCODE_REG:
763*d2201f2fSdrahn str = parse_reg (str, &op1);
764*d2201f2fSdrahn if (op1.error)
765*d2201f2fSdrahn break;
766*d2201f2fSdrahn insn.code |= op1.code;
767*d2201f2fSdrahn break;
768*d2201f2fSdrahn
769*d2201f2fSdrahn case PDP11_OPCODE_OP:
770*d2201f2fSdrahn str = parse_op (str, &op1);
771*d2201f2fSdrahn if (op1.error)
772*d2201f2fSdrahn break;
773*d2201f2fSdrahn insn.code |= op1.code;
774*d2201f2fSdrahn if (op1.additional)
775*d2201f2fSdrahn size += 2;
776*d2201f2fSdrahn break;
777*d2201f2fSdrahn
778*d2201f2fSdrahn case PDP11_OPCODE_FOP:
779*d2201f2fSdrahn str = parse_fop (str, &op1);
780*d2201f2fSdrahn if (op1.error)
781*d2201f2fSdrahn break;
782*d2201f2fSdrahn insn.code |= op1.code;
783*d2201f2fSdrahn if (op1.additional)
784*d2201f2fSdrahn size += 2;
785*d2201f2fSdrahn break;
786*d2201f2fSdrahn
787*d2201f2fSdrahn case PDP11_OPCODE_REG_OP:
788*d2201f2fSdrahn str = parse_reg (str, &op2);
789*d2201f2fSdrahn if (op2.error)
790*d2201f2fSdrahn break;
791*d2201f2fSdrahn insn.code |= op2.code << 6;
792*d2201f2fSdrahn str = parse_separator (str, &error);
793*d2201f2fSdrahn if (error)
794*d2201f2fSdrahn {
795*d2201f2fSdrahn op2.error = "Missing ','";
796*d2201f2fSdrahn break;
797*d2201f2fSdrahn }
798*d2201f2fSdrahn str = parse_op (str, &op1);
799*d2201f2fSdrahn if (op1.error)
800*d2201f2fSdrahn break;
801*d2201f2fSdrahn insn.code |= op1.code;
802*d2201f2fSdrahn if (op1.additional)
803*d2201f2fSdrahn size += 2;
804*d2201f2fSdrahn break;
805*d2201f2fSdrahn
806*d2201f2fSdrahn case PDP11_OPCODE_REG_OP_REV:
807*d2201f2fSdrahn str = parse_op (str, &op1);
808*d2201f2fSdrahn if (op1.error)
809*d2201f2fSdrahn break;
810*d2201f2fSdrahn insn.code |= op1.code;
811*d2201f2fSdrahn if (op1.additional)
812*d2201f2fSdrahn size += 2;
813*d2201f2fSdrahn str = parse_separator (str, &error);
814*d2201f2fSdrahn if (error)
815*d2201f2fSdrahn {
816*d2201f2fSdrahn op2.error = "Missing ','";
817*d2201f2fSdrahn break;
818*d2201f2fSdrahn }
819*d2201f2fSdrahn str = parse_reg (str, &op2);
820*d2201f2fSdrahn if (op2.error)
821*d2201f2fSdrahn break;
822*d2201f2fSdrahn insn.code |= op2.code << 6;
823*d2201f2fSdrahn break;
824*d2201f2fSdrahn
825*d2201f2fSdrahn case PDP11_OPCODE_AC_FOP:
826*d2201f2fSdrahn str = parse_ac (str, &op2);
827*d2201f2fSdrahn if (op2.error)
828*d2201f2fSdrahn break;
829*d2201f2fSdrahn insn.code |= op2.code << 6;
830*d2201f2fSdrahn str = parse_separator (str, &error);
831*d2201f2fSdrahn if (error)
832*d2201f2fSdrahn {
833*d2201f2fSdrahn op1.error = "Missing ','";
834*d2201f2fSdrahn break;
835*d2201f2fSdrahn }
836*d2201f2fSdrahn str = parse_fop (str, &op1);
837*d2201f2fSdrahn if (op1.error)
838*d2201f2fSdrahn break;
839*d2201f2fSdrahn insn.code |= op1.code;
840*d2201f2fSdrahn if (op1.additional)
841*d2201f2fSdrahn size += 2;
842*d2201f2fSdrahn break;
843*d2201f2fSdrahn
844*d2201f2fSdrahn case PDP11_OPCODE_FOP_AC:
845*d2201f2fSdrahn str = parse_fop (str, &op1);
846*d2201f2fSdrahn if (op1.error)
847*d2201f2fSdrahn break;
848*d2201f2fSdrahn insn.code |= op1.code;
849*d2201f2fSdrahn if (op1.additional)
850*d2201f2fSdrahn size += 2;
851*d2201f2fSdrahn str = parse_separator (str, &error);
852*d2201f2fSdrahn if (error)
853*d2201f2fSdrahn {
854*d2201f2fSdrahn op1.error = "Missing ','";
855*d2201f2fSdrahn break;
856*d2201f2fSdrahn }
857*d2201f2fSdrahn str = parse_ac (str, &op2);
858*d2201f2fSdrahn if (op2.error)
859*d2201f2fSdrahn break;
860*d2201f2fSdrahn insn.code |= op2.code << 6;
861*d2201f2fSdrahn break;
862*d2201f2fSdrahn
863*d2201f2fSdrahn case PDP11_OPCODE_AC_OP:
864*d2201f2fSdrahn str = parse_ac (str, &op2);
865*d2201f2fSdrahn if (op2.error)
866*d2201f2fSdrahn break;
867*d2201f2fSdrahn insn.code |= op2.code << 6;
868*d2201f2fSdrahn str = parse_separator (str, &error);
869*d2201f2fSdrahn if (error)
870*d2201f2fSdrahn {
871*d2201f2fSdrahn op1.error = "Missing ','";
872*d2201f2fSdrahn break;
873*d2201f2fSdrahn }
874*d2201f2fSdrahn str = parse_op (str, &op1);
875*d2201f2fSdrahn if (op1.error)
876*d2201f2fSdrahn break;
877*d2201f2fSdrahn insn.code |= op1.code;
878*d2201f2fSdrahn if (op1.additional)
879*d2201f2fSdrahn size += 2;
880*d2201f2fSdrahn break;
881*d2201f2fSdrahn
882*d2201f2fSdrahn case PDP11_OPCODE_OP_AC:
883*d2201f2fSdrahn str = parse_op (str, &op1);
884*d2201f2fSdrahn if (op1.error)
885*d2201f2fSdrahn break;
886*d2201f2fSdrahn insn.code |= op1.code;
887*d2201f2fSdrahn if (op1.additional)
888*d2201f2fSdrahn size += 2;
889*d2201f2fSdrahn str = parse_separator (str, &error);
890*d2201f2fSdrahn if (error)
891*d2201f2fSdrahn {
892*d2201f2fSdrahn op1.error = "Missing ','";
893*d2201f2fSdrahn break;
894*d2201f2fSdrahn }
895*d2201f2fSdrahn str = parse_ac (str, &op2);
896*d2201f2fSdrahn if (op2.error)
897*d2201f2fSdrahn break;
898*d2201f2fSdrahn insn.code |= op2.code << 6;
899*d2201f2fSdrahn break;
900*d2201f2fSdrahn
901*d2201f2fSdrahn case PDP11_OPCODE_OP_OP:
902*d2201f2fSdrahn str = parse_op (str, &op1);
903*d2201f2fSdrahn if (op1.error)
904*d2201f2fSdrahn break;
905*d2201f2fSdrahn insn.code |= op1.code << 6;
906*d2201f2fSdrahn if (op1.additional)
907*d2201f2fSdrahn size += 2;
908*d2201f2fSdrahn str = parse_separator (str, &error);
909*d2201f2fSdrahn if (error)
910*d2201f2fSdrahn {
911*d2201f2fSdrahn op2.error = "Missing ','";
912*d2201f2fSdrahn break;
913*d2201f2fSdrahn }
914*d2201f2fSdrahn str = parse_op (str, &op2);
915*d2201f2fSdrahn if (op2.error)
916*d2201f2fSdrahn break;
917*d2201f2fSdrahn insn.code |= op2.code;
918*d2201f2fSdrahn if (op2.additional)
919*d2201f2fSdrahn size += 2;
920*d2201f2fSdrahn break;
921*d2201f2fSdrahn
922*d2201f2fSdrahn case PDP11_OPCODE_REG_DISPL:
923*d2201f2fSdrahn {
924*d2201f2fSdrahn char *new;
925*d2201f2fSdrahn str = parse_reg (str, &op2);
926*d2201f2fSdrahn if (op2.error)
927*d2201f2fSdrahn break;
928*d2201f2fSdrahn insn.code |= op2.code << 6;
929*d2201f2fSdrahn str = parse_separator (str, &error);
930*d2201f2fSdrahn if (error)
931*d2201f2fSdrahn {
932*d2201f2fSdrahn op1.error = "Missing ','";
933*d2201f2fSdrahn break;
934*d2201f2fSdrahn }
935*d2201f2fSdrahn new = parse_expression (str, &op1);
936*d2201f2fSdrahn op1.code = 0;
937*d2201f2fSdrahn op1.reloc.pc_rel = 1;
938*d2201f2fSdrahn op1.reloc.type = BFD_RELOC_PDP11_DISP_6_PCREL;
939*d2201f2fSdrahn if (op1.reloc.exp.X_op != O_symbol)
940*d2201f2fSdrahn {
941*d2201f2fSdrahn op1.error = "Symbol expected";
942*d2201f2fSdrahn break;
943*d2201f2fSdrahn }
944*d2201f2fSdrahn if (op1.code & ~0x3f)
945*d2201f2fSdrahn {
946*d2201f2fSdrahn err = "6-bit displacement out of range";
947*d2201f2fSdrahn break;
948*d2201f2fSdrahn }
949*d2201f2fSdrahn str = new;
950*d2201f2fSdrahn insn.code |= op1.code;
951*d2201f2fSdrahn insn.reloc = op1.reloc;
952*d2201f2fSdrahn }
953*d2201f2fSdrahn break;
954*d2201f2fSdrahn
955*d2201f2fSdrahn default:
956*d2201f2fSdrahn BAD_CASE (op->type);
957*d2201f2fSdrahn }
958*d2201f2fSdrahn
959*d2201f2fSdrahn if (op1.error)
960*d2201f2fSdrahn err = op1.error;
961*d2201f2fSdrahn else if (op2.error)
962*d2201f2fSdrahn err = op2.error;
963*d2201f2fSdrahn else
964*d2201f2fSdrahn {
965*d2201f2fSdrahn str = skip_whitespace (str);
966*d2201f2fSdrahn if (*str)
967*d2201f2fSdrahn err = "Too many operands";
968*d2201f2fSdrahn }
969*d2201f2fSdrahn
970*d2201f2fSdrahn {
971*d2201f2fSdrahn char *to = NULL;
972*d2201f2fSdrahn
973*d2201f2fSdrahn if (err)
974*d2201f2fSdrahn {
975*d2201f2fSdrahn as_bad (err);
976*d2201f2fSdrahn return;
977*d2201f2fSdrahn }
978*d2201f2fSdrahn
979*d2201f2fSdrahn to = frag_more (size);
980*d2201f2fSdrahn
981*d2201f2fSdrahn md_number_to_chars (to, insn.code, 2);
982*d2201f2fSdrahn if (insn.reloc.type != BFD_RELOC_NONE)
983*d2201f2fSdrahn fix_new_exp (frag_now, to - frag_now->fr_literal, 2,
984*d2201f2fSdrahn &insn.reloc.exp, insn.reloc.pc_rel, insn.reloc.type);
985*d2201f2fSdrahn to += 2;
986*d2201f2fSdrahn
987*d2201f2fSdrahn if (op1.additional)
988*d2201f2fSdrahn {
989*d2201f2fSdrahn md_number_to_chars (to, op1.word, 2);
990*d2201f2fSdrahn if (op1.reloc.type != BFD_RELOC_NONE)
991*d2201f2fSdrahn fix_new_exp (frag_now, to - frag_now->fr_literal, 2,
992*d2201f2fSdrahn &op1.reloc.exp, op1.reloc.pc_rel, op1.reloc.type);
993*d2201f2fSdrahn to += 2;
994*d2201f2fSdrahn }
995*d2201f2fSdrahn
996*d2201f2fSdrahn if (op2.additional)
997*d2201f2fSdrahn {
998*d2201f2fSdrahn md_number_to_chars (to, op2.word, 2);
999*d2201f2fSdrahn if (op2.reloc.type != BFD_RELOC_NONE)
1000*d2201f2fSdrahn fix_new_exp (frag_now, to - frag_now->fr_literal, 2,
1001*d2201f2fSdrahn &op2.reloc.exp, op2.reloc.pc_rel, op2.reloc.type);
1002*d2201f2fSdrahn }
1003*d2201f2fSdrahn }
1004*d2201f2fSdrahn }
1005*d2201f2fSdrahn
1006*d2201f2fSdrahn int
md_estimate_size_before_relax(fragP,segment)1007*d2201f2fSdrahn md_estimate_size_before_relax (fragP, segment)
1008*d2201f2fSdrahn fragS *fragP ATTRIBUTE_UNUSED;
1009*d2201f2fSdrahn segT segment ATTRIBUTE_UNUSED;
1010*d2201f2fSdrahn {
1011*d2201f2fSdrahn return 0;
1012*d2201f2fSdrahn }
1013*d2201f2fSdrahn
1014*d2201f2fSdrahn void
md_convert_frag(headers,seg,fragP)1015*d2201f2fSdrahn md_convert_frag (headers, seg, fragP)
1016*d2201f2fSdrahn bfd *headers ATTRIBUTE_UNUSED;
1017*d2201f2fSdrahn segT seg ATTRIBUTE_UNUSED;
1018*d2201f2fSdrahn fragS *fragP ATTRIBUTE_UNUSED;
1019*d2201f2fSdrahn {
1020*d2201f2fSdrahn }
1021*d2201f2fSdrahn
1022*d2201f2fSdrahn const int md_short_jump_size = 2;
1023*d2201f2fSdrahn const int md_long_jump_size = 4;
1024*d2201f2fSdrahn
1025*d2201f2fSdrahn void
md_create_short_jump(ptr,from_addr,to_addr,frag,to_symbol)1026*d2201f2fSdrahn md_create_short_jump (ptr, from_addr, to_addr, frag, to_symbol)
1027*d2201f2fSdrahn char *ptr ATTRIBUTE_UNUSED;
1028*d2201f2fSdrahn addressT from_addr ATTRIBUTE_UNUSED;
1029*d2201f2fSdrahn addressT to_addr ATTRIBUTE_UNUSED;
1030*d2201f2fSdrahn fragS *frag ATTRIBUTE_UNUSED;
1031*d2201f2fSdrahn symbolS *to_symbol ATTRIBUTE_UNUSED;
1032*d2201f2fSdrahn {
1033*d2201f2fSdrahn }
1034*d2201f2fSdrahn
1035*d2201f2fSdrahn void
md_create_long_jump(ptr,from_addr,to_addr,frag,to_symbol)1036*d2201f2fSdrahn md_create_long_jump (ptr, from_addr, to_addr, frag, to_symbol)
1037*d2201f2fSdrahn char *ptr ATTRIBUTE_UNUSED;
1038*d2201f2fSdrahn addressT from_addr ATTRIBUTE_UNUSED;
1039*d2201f2fSdrahn addressT to_addr ATTRIBUTE_UNUSED;
1040*d2201f2fSdrahn fragS *frag ATTRIBUTE_UNUSED;
1041*d2201f2fSdrahn symbolS *to_symbol ATTRIBUTE_UNUSED;
1042*d2201f2fSdrahn {
1043*d2201f2fSdrahn }
1044*d2201f2fSdrahn
1045*d2201f2fSdrahn static int
set_option(arg)1046*d2201f2fSdrahn set_option (arg)
1047*d2201f2fSdrahn char *arg;
1048*d2201f2fSdrahn {
1049*d2201f2fSdrahn int yes = 1;
1050*d2201f2fSdrahn
1051*d2201f2fSdrahn if (strcmp (arg, "all-extensions") == 0 ||
1052*d2201f2fSdrahn strcmp (arg, "all") == 0)
1053*d2201f2fSdrahn {
1054*d2201f2fSdrahn memset (pdp11_extension, ~0, sizeof pdp11_extension);
1055*d2201f2fSdrahn pdp11_extension[PDP11_NONE] = 0;
1056*d2201f2fSdrahn return 1;
1057*d2201f2fSdrahn }
1058*d2201f2fSdrahn else if (strcmp (arg, "no-extensions") == 0)
1059*d2201f2fSdrahn {
1060*d2201f2fSdrahn memset (pdp11_extension, 0, sizeof pdp11_extension);
1061*d2201f2fSdrahn pdp11_extension[PDP11_BASIC] = 1;
1062*d2201f2fSdrahn return 1;
1063*d2201f2fSdrahn }
1064*d2201f2fSdrahn
1065*d2201f2fSdrahn if (strncmp (arg, "no-", 3) == 0)
1066*d2201f2fSdrahn {
1067*d2201f2fSdrahn yes = 0;
1068*d2201f2fSdrahn arg += 3;
1069*d2201f2fSdrahn }
1070*d2201f2fSdrahn
1071*d2201f2fSdrahn if (strcmp (arg, "cis") == 0) /* commersial instructions */
1072*d2201f2fSdrahn pdp11_extension[PDP11_CIS] = yes;
1073*d2201f2fSdrahn else if (strcmp (arg, "csm") == 0) /* call supervisor mode */
1074*d2201f2fSdrahn pdp11_extension[PDP11_CSM] = yes;
1075*d2201f2fSdrahn else if (strcmp (arg, "eis") == 0) /* extended instruction set */
1076*d2201f2fSdrahn pdp11_extension[PDP11_EIS] = pdp11_extension[PDP11_LEIS] = yes;
1077*d2201f2fSdrahn else if (strcmp (arg, "fis") == 0 || /* KEV11 floating-point */
1078*d2201f2fSdrahn strcmp (arg, "kev11") == 0 ||
1079*d2201f2fSdrahn strcmp (arg, "kev-11") == 0)
1080*d2201f2fSdrahn pdp11_extension[PDP11_FIS] = yes;
1081*d2201f2fSdrahn else if (strcmp (arg, "fpp") == 0 || /* FP-11 floating-point */
1082*d2201f2fSdrahn strcmp (arg, "fpu") == 0 ||
1083*d2201f2fSdrahn strcmp (arg, "fp11") == 0 ||
1084*d2201f2fSdrahn strcmp (arg, "fp-11") == 0 ||
1085*d2201f2fSdrahn strcmp (arg, "fpj11") == 0 ||
1086*d2201f2fSdrahn strcmp (arg, "fp-j11") == 0 ||
1087*d2201f2fSdrahn strcmp (arg, "fpj-11") == 0)
1088*d2201f2fSdrahn pdp11_extension[PDP11_FPP] = yes;
1089*d2201f2fSdrahn else if (strcmp (arg, "limited-eis") == 0) /* limited extended insns */
1090*d2201f2fSdrahn {
1091*d2201f2fSdrahn pdp11_extension[PDP11_LEIS] = yes;
1092*d2201f2fSdrahn if (!pdp11_extension[PDP11_LEIS])
1093*d2201f2fSdrahn pdp11_extension[PDP11_EIS] = 0;
1094*d2201f2fSdrahn }
1095*d2201f2fSdrahn else if (strcmp (arg, "mfpt") == 0) /* move from processor type */
1096*d2201f2fSdrahn pdp11_extension[PDP11_MFPT] = yes;
1097*d2201f2fSdrahn else if (strncmp (arg, "mproc", 5) == 0 || /* multiprocessor insns: */
1098*d2201f2fSdrahn strncmp (arg, "multiproc", 9) == 0 ) /* TSTSET, WRTLCK */
1099*d2201f2fSdrahn pdp11_extension[PDP11_MPROC] = yes;
1100*d2201f2fSdrahn else if (strcmp (arg, "mxps") == 0) /* move from/to proc status */
1101*d2201f2fSdrahn pdp11_extension[PDP11_MXPS] = yes;
1102*d2201f2fSdrahn else if (strcmp (arg, "pic") == 0) /* position-independent code */
1103*d2201f2fSdrahn asm_option[ASM_OPT_PIC] = yes;
1104*d2201f2fSdrahn else if (strcmp (arg, "spl") == 0) /* set priority level */
1105*d2201f2fSdrahn pdp11_extension[PDP11_SPL] = yes;
1106*d2201f2fSdrahn else if (strcmp (arg, "ucode") == 0 || /* microcode instructions: */
1107*d2201f2fSdrahn strcmp (arg, "microcode") == 0) /* LDUB, MED, XFC */
1108*d2201f2fSdrahn pdp11_extension[PDP11_UCODE] = yes;
1109*d2201f2fSdrahn else
1110*d2201f2fSdrahn return 0;
1111*d2201f2fSdrahn
1112*d2201f2fSdrahn return 1;
1113*d2201f2fSdrahn }
1114*d2201f2fSdrahn
1115*d2201f2fSdrahn static int
set_cpu_model(arg)1116*d2201f2fSdrahn set_cpu_model (arg)
1117*d2201f2fSdrahn char *arg;
1118*d2201f2fSdrahn {
1119*d2201f2fSdrahn char buf[4];
1120*d2201f2fSdrahn char *model = buf;
1121*d2201f2fSdrahn
1122*d2201f2fSdrahn if (arg[0] == 'k')
1123*d2201f2fSdrahn arg++;
1124*d2201f2fSdrahn
1125*d2201f2fSdrahn *model++ = *arg++;
1126*d2201f2fSdrahn
1127*d2201f2fSdrahn if (strchr ("abdx", model[-1]) == NULL)
1128*d2201f2fSdrahn return 0;
1129*d2201f2fSdrahn
1130*d2201f2fSdrahn if (model[-1] == 'd')
1131*d2201f2fSdrahn {
1132*d2201f2fSdrahn if (arg[0] == 'f' ||
1133*d2201f2fSdrahn arg[0] == 'j')
1134*d2201f2fSdrahn model[-1] = *arg++;
1135*d2201f2fSdrahn }
1136*d2201f2fSdrahn else if (model[-1] == 'x')
1137*d2201f2fSdrahn {
1138*d2201f2fSdrahn if (arg[0] == 't')
1139*d2201f2fSdrahn model[-1] = *arg++;
1140*d2201f2fSdrahn }
1141*d2201f2fSdrahn
1142*d2201f2fSdrahn if (arg[0] == '-')
1143*d2201f2fSdrahn arg++;
1144*d2201f2fSdrahn
1145*d2201f2fSdrahn if (strncmp (arg, "11", 2) != 0)
1146*d2201f2fSdrahn return 0;
1147*d2201f2fSdrahn arg += 2;
1148*d2201f2fSdrahn
1149*d2201f2fSdrahn if (arg[0] == '-')
1150*d2201f2fSdrahn {
1151*d2201f2fSdrahn if (*++arg == 0)
1152*d2201f2fSdrahn return 0;
1153*d2201f2fSdrahn }
1154*d2201f2fSdrahn
1155*d2201f2fSdrahn /* allow up to two revision letters */
1156*d2201f2fSdrahn if (arg[0] != 0)
1157*d2201f2fSdrahn *model++ = *arg++;
1158*d2201f2fSdrahn if (arg[0] != 0)
1159*d2201f2fSdrahn *model++ = *arg++;
1160*d2201f2fSdrahn
1161*d2201f2fSdrahn *model++ = 0;
1162*d2201f2fSdrahn
1163*d2201f2fSdrahn set_option ("no-extensions");
1164*d2201f2fSdrahn
1165*d2201f2fSdrahn if (strncmp (buf, "a", 1) == 0) /* KA11 (11/15/20) */
1166*d2201f2fSdrahn return 1; /* no extensions */
1167*d2201f2fSdrahn
1168*d2201f2fSdrahn else if (strncmp (buf, "b", 1) == 0) /* KB11 (11/45/50/55/70) */
1169*d2201f2fSdrahn return set_option ("eis") &&
1170*d2201f2fSdrahn set_option ("spl");
1171*d2201f2fSdrahn
1172*d2201f2fSdrahn else if (strncmp (buf, "da", 2) == 0) /* KD11-A (11/35/40) */
1173*d2201f2fSdrahn return set_option ("limited-eis");
1174*d2201f2fSdrahn
1175*d2201f2fSdrahn else if (strncmp (buf, "db", 2) == 0 || /* KD11-B (11/05/10) */
1176*d2201f2fSdrahn strncmp (buf, "dd", 2) == 0) /* KD11-D (11/04) */
1177*d2201f2fSdrahn return 1; /* no extensions */
1178*d2201f2fSdrahn
1179*d2201f2fSdrahn else if (strncmp (buf, "de", 2) == 0) /* KD11-E (11/34) */
1180*d2201f2fSdrahn return set_option ("eis") &&
1181*d2201f2fSdrahn set_option ("mxps");
1182*d2201f2fSdrahn
1183*d2201f2fSdrahn else if (strncmp (buf, "df", 2) == 0 || /* KD11-F (11/03) */
1184*d2201f2fSdrahn strncmp (buf, "dh", 2) == 0 || /* KD11-H (11/03) */
1185*d2201f2fSdrahn strncmp (buf, "dq", 2) == 0) /* KD11-Q (11/03) */
1186*d2201f2fSdrahn return set_option ("limited-eis") &&
1187*d2201f2fSdrahn set_option ("mxps");
1188*d2201f2fSdrahn
1189*d2201f2fSdrahn else if (strncmp (buf, "dk", 2) == 0) /* KD11-K (11/60) */
1190*d2201f2fSdrahn return set_option ("eis") &&
1191*d2201f2fSdrahn set_option ("mxps") &&
1192*d2201f2fSdrahn set_option ("ucode");
1193*d2201f2fSdrahn
1194*d2201f2fSdrahn else if (strncmp (buf, "dz", 2) == 0) /* KD11-Z (11/44) */
1195*d2201f2fSdrahn return set_option ("csm") &&
1196*d2201f2fSdrahn set_option ("eis") &&
1197*d2201f2fSdrahn set_option ("mfpt") &&
1198*d2201f2fSdrahn set_option ("mxps") &&
1199*d2201f2fSdrahn set_option ("spl");
1200*d2201f2fSdrahn
1201*d2201f2fSdrahn else if (strncmp (buf, "f", 1) == 0) /* F11 (11/23/24) */
1202*d2201f2fSdrahn return set_option ("eis") &&
1203*d2201f2fSdrahn set_option ("mfpt") &&
1204*d2201f2fSdrahn set_option ("mxps");
1205*d2201f2fSdrahn
1206*d2201f2fSdrahn else if (strncmp (buf, "j", 1) == 0) /* J11 (11/53/73/83/84/93/94)*/
1207*d2201f2fSdrahn return set_option ("csm") &&
1208*d2201f2fSdrahn set_option ("eis") &&
1209*d2201f2fSdrahn set_option ("mfpt") &&
1210*d2201f2fSdrahn set_option ("multiproc") &&
1211*d2201f2fSdrahn set_option ("mxps") &&
1212*d2201f2fSdrahn set_option ("spl");
1213*d2201f2fSdrahn
1214*d2201f2fSdrahn else if (strncmp (buf, "t", 1) == 0) /* T11 (11/21) */
1215*d2201f2fSdrahn return set_option ("limited-eis") &&
1216*d2201f2fSdrahn set_option ("mxps");
1217*d2201f2fSdrahn
1218*d2201f2fSdrahn else
1219*d2201f2fSdrahn return 0;
1220*d2201f2fSdrahn }
1221*d2201f2fSdrahn
1222*d2201f2fSdrahn static int
set_machine_model(arg)1223*d2201f2fSdrahn set_machine_model (arg)
1224*d2201f2fSdrahn char *arg;
1225*d2201f2fSdrahn {
1226*d2201f2fSdrahn if (strncmp (arg, "pdp-11/", 7) != 0 &&
1227*d2201f2fSdrahn strncmp (arg, "pdp11/", 6) != 0 &&
1228*d2201f2fSdrahn strncmp (arg, "11/", 3) != 0)
1229*d2201f2fSdrahn return 0;
1230*d2201f2fSdrahn
1231*d2201f2fSdrahn if (strncmp (arg, "pdp", 3) == 0)
1232*d2201f2fSdrahn arg += 3;
1233*d2201f2fSdrahn if (arg[0] == '-')
1234*d2201f2fSdrahn arg++;
1235*d2201f2fSdrahn if (strncmp (arg, "11/", 3) == 0)
1236*d2201f2fSdrahn arg += 3;
1237*d2201f2fSdrahn
1238*d2201f2fSdrahn if (strcmp (arg, "03") == 0) /* 11/03 */
1239*d2201f2fSdrahn return set_cpu_model ("kd11f"); /* KD11-F */
1240*d2201f2fSdrahn
1241*d2201f2fSdrahn else if (strcmp (arg, "04") == 0) /* 11/04 */
1242*d2201f2fSdrahn return set_cpu_model ("kd11d"); /* KD11-D */
1243*d2201f2fSdrahn
1244*d2201f2fSdrahn else if (strcmp (arg, "05") == 0 || /* 11/05 or 11/10 */
1245*d2201f2fSdrahn strcmp (arg, "10") == 0)
1246*d2201f2fSdrahn return set_cpu_model ("kd11b"); /* KD11-B */
1247*d2201f2fSdrahn
1248*d2201f2fSdrahn else if (strcmp (arg, "15") == 0 || /* 11/15 or 11/20 */
1249*d2201f2fSdrahn strcmp (arg, "20") == 0)
1250*d2201f2fSdrahn return set_cpu_model ("ka11"); /* KA11 */
1251*d2201f2fSdrahn
1252*d2201f2fSdrahn else if (strcmp (arg, "21") == 0) /* 11/21 */
1253*d2201f2fSdrahn return set_cpu_model ("t11"); /* T11 */
1254*d2201f2fSdrahn
1255*d2201f2fSdrahn else if (strcmp (arg, "23") == 0 || /* 11/23 or 11/24 */
1256*d2201f2fSdrahn strcmp (arg, "24") == 0)
1257*d2201f2fSdrahn return set_cpu_model ("f11"); /* F11 */
1258*d2201f2fSdrahn
1259*d2201f2fSdrahn else if (strcmp (arg, "34") == 0 || /* 11/34 or 11/34a */
1260*d2201f2fSdrahn strcmp (arg, "34a") == 0)
1261*d2201f2fSdrahn return set_cpu_model ("kd11e"); /* KD11-E */
1262*d2201f2fSdrahn
1263*d2201f2fSdrahn else if (strcmp (arg, "35") == 0 || /* 11/35 or 11/40 */
1264*d2201f2fSdrahn strcmp (arg, "40") == 0)
1265*d2201f2fSdrahn return set_cpu_model ("kd11da"); /* KD11-A */
1266*d2201f2fSdrahn
1267*d2201f2fSdrahn else if (strcmp (arg, "44") == 0) /* 11/44 */
1268*d2201f2fSdrahn return set_cpu_model ("kd11dz"); /* KD11-Z */
1269*d2201f2fSdrahn
1270*d2201f2fSdrahn else if (strcmp (arg, "45") == 0 || /* 11/45/50/55/70 */
1271*d2201f2fSdrahn strcmp (arg, "50") == 0 ||
1272*d2201f2fSdrahn strcmp (arg, "55") == 0 ||
1273*d2201f2fSdrahn strcmp (arg, "70") == 0)
1274*d2201f2fSdrahn return set_cpu_model ("kb11"); /* KB11 */
1275*d2201f2fSdrahn
1276*d2201f2fSdrahn else if (strcmp (arg, "60") == 0) /* 11/60 */
1277*d2201f2fSdrahn return set_cpu_model ("kd11k"); /* KD11-K */ /* FPP? */
1278*d2201f2fSdrahn
1279*d2201f2fSdrahn else if (strcmp (arg, "53") == 0 || /* 11/53/73/83/84/93/94 */
1280*d2201f2fSdrahn strcmp (arg, "73") == 0 ||
1281*d2201f2fSdrahn strcmp (arg, "83") == 0 ||
1282*d2201f2fSdrahn strcmp (arg, "84") == 0 ||
1283*d2201f2fSdrahn strcmp (arg, "93") == 0 ||
1284*d2201f2fSdrahn strcmp (arg, "94") == 0)
1285*d2201f2fSdrahn return set_cpu_model ("j11") && /* J11 */
1286*d2201f2fSdrahn set_option ("fpp"); /* All J11 machines come */
1287*d2201f2fSdrahn /* with FPP installed. */
1288*d2201f2fSdrahn else
1289*d2201f2fSdrahn return 0;
1290*d2201f2fSdrahn }
1291*d2201f2fSdrahn
1292*d2201f2fSdrahn const char *md_shortopts = "m:";
1293*d2201f2fSdrahn
1294*d2201f2fSdrahn struct option md_longopts[] =
1295*d2201f2fSdrahn {
1296*d2201f2fSdrahn #define OPTION_CPU 257
1297*d2201f2fSdrahn { "cpu", required_argument, NULL, OPTION_CPU },
1298*d2201f2fSdrahn #define OPTION_MACHINE 258
1299*d2201f2fSdrahn { "machine", required_argument, NULL, OPTION_MACHINE },
1300*d2201f2fSdrahn #define OPTION_PIC 259
1301*d2201f2fSdrahn { "pic", no_argument, NULL, OPTION_PIC },
1302*d2201f2fSdrahn { NULL, no_argument, NULL, 0 }
1303*d2201f2fSdrahn };
1304*d2201f2fSdrahn
1305*d2201f2fSdrahn size_t md_longopts_size = sizeof (md_longopts);
1306*d2201f2fSdrahn
1307*d2201f2fSdrahn /*
1308*d2201f2fSdrahn * md_parse_option
1309*d2201f2fSdrahn * Invocation line includes a switch not recognized by the base assembler.
1310*d2201f2fSdrahn * See if it's a processor-specific option.
1311*d2201f2fSdrahn */
1312*d2201f2fSdrahn
1313*d2201f2fSdrahn int
md_parse_option(c,arg)1314*d2201f2fSdrahn md_parse_option (c, arg)
1315*d2201f2fSdrahn int c;
1316*d2201f2fSdrahn char *arg;
1317*d2201f2fSdrahn {
1318*d2201f2fSdrahn init_defaults ();
1319*d2201f2fSdrahn
1320*d2201f2fSdrahn switch (c)
1321*d2201f2fSdrahn {
1322*d2201f2fSdrahn case 'm':
1323*d2201f2fSdrahn if (set_option (arg))
1324*d2201f2fSdrahn return 1;
1325*d2201f2fSdrahn if (set_cpu_model (arg))
1326*d2201f2fSdrahn return 1;
1327*d2201f2fSdrahn if (set_machine_model (arg))
1328*d2201f2fSdrahn return 1;
1329*d2201f2fSdrahn break;
1330*d2201f2fSdrahn
1331*d2201f2fSdrahn case OPTION_CPU:
1332*d2201f2fSdrahn if (set_cpu_model (arg))
1333*d2201f2fSdrahn return 1;
1334*d2201f2fSdrahn break;
1335*d2201f2fSdrahn
1336*d2201f2fSdrahn case OPTION_MACHINE:
1337*d2201f2fSdrahn if (set_machine_model (arg))
1338*d2201f2fSdrahn return 1;
1339*d2201f2fSdrahn break;
1340*d2201f2fSdrahn
1341*d2201f2fSdrahn case OPTION_PIC:
1342*d2201f2fSdrahn if (set_option ("pic"))
1343*d2201f2fSdrahn return 1;
1344*d2201f2fSdrahn break;
1345*d2201f2fSdrahn
1346*d2201f2fSdrahn default:
1347*d2201f2fSdrahn break;
1348*d2201f2fSdrahn }
1349*d2201f2fSdrahn
1350*d2201f2fSdrahn as_bad ("unrecognized option `-%c%s'", c, arg ? arg : "");
1351*d2201f2fSdrahn
1352*d2201f2fSdrahn return 0;
1353*d2201f2fSdrahn }
1354*d2201f2fSdrahn
1355*d2201f2fSdrahn /*
1356*d2201f2fSdrahn One possible way of parsing options.
1357*d2201f2fSdrahn
1358*d2201f2fSdrahn enum
1359*d2201f2fSdrahn {
1360*d2201f2fSdrahn OPTION_CSM,
1361*d2201f2fSdrahn OPTION_CIS,
1362*d2201f2fSdrahn ...
1363*d2201f2fSdrahn };
1364*d2201f2fSdrahn
1365*d2201f2fSdrahn struct
1366*d2201f2fSdrahn {
1367*d2201f2fSdrahn const char *pattern;
1368*d2201f2fSdrahn int opt;
1369*d2201f2fSdrahn const char *description;
1370*d2201f2fSdrahn } options;
1371*d2201f2fSdrahn
1372*d2201f2fSdrahn static struct options extension_opts[] =
1373*d2201f2fSdrahn {
1374*d2201f2fSdrahn { "Ncsm", OPTION_CSM,
1375*d2201f2fSdrahn "allow (disallow) CSM instruction" },
1376*d2201f2fSdrahn { "Ncis", OPTION_CIS,
1377*d2201f2fSdrahn "allow (disallow) commersial instruction set" },
1378*d2201f2fSdrahn { "Neis", OPTION_EIS,
1379*d2201f2fSdrahn "allow (disallow) extended instruction set" },
1380*d2201f2fSdrahn ...
1381*d2201f2fSdrahn { "all-extensions", OPTION_ALL_EXTENSIONS,
1382*d2201f2fSdrahn "allow all instruction set extensions\n\
1383*d2201f2fSdrahn (this is the default)" },
1384*d2201f2fSdrahn { "no-extensions", OPTION_NO_EXTENSIONS,
1385*d2201f2fSdrahn "disallow all instruction set extensions" },
1386*d2201f2fSdrahn { "pic", OPTION_PIC,
1387*d2201f2fSdrahn "position-independent code" },
1388*d2201f2fSdrahn };
1389*d2201f2fSdrahn
1390*d2201f2fSdrahn static struct options cpu_opts[] =
1391*d2201f2fSdrahn {
1392*d2201f2fSdrahn { "Ka_11_*", OPTION_KA11, "KA11 CPU. ..." },
1393*d2201f2fSdrahn { "Kb_11_*", OPTION_KB11, "KB11 CPU. ..." },
1394*d2201f2fSdrahn { "Kd_11_a*", OPTION_KD11A, "KD11-A CPU. ..." },
1395*d2201f2fSdrahn { "Kd_11_b*", OPTION_KD11B, "KD11-B CPU. ..." },
1396*d2201f2fSdrahn { "Kd_11_d*", OPTION_KD11D, "KD11-D CPU. ..." },
1397*d2201f2fSdrahn { "Kd_11_e*", OPTION_KD11E, "KD11-E CPU. ..." },
1398*d2201f2fSdrahn { "Kd_11_f*", OPTION_KD11F, "KD11-F CPU. ..." },
1399*d2201f2fSdrahn { "Kd_11_h*", OPTION_KD11H, "KD11-H CPU. ..." },
1400*d2201f2fSdrahn { "Kd_11_q*", OPTION_KD11Q, "KD11-Q CPU. ..." },
1401*d2201f2fSdrahn { "Kd_11_z*", OPTION_KD11Z, "KD11-Z CPU. ..." },
1402*d2201f2fSdrahn { "Df_11_*", OPTION_F11, "F11 CPU. ..." },
1403*d2201f2fSdrahn { "Dj_11_*", OPTION_J11, "J11 CPU. ..." },
1404*d2201f2fSdrahn { "Dt_11_*", OPTION_T11, "T11 CPU. ..." },
1405*d2201f2fSdrahn };
1406*d2201f2fSdrahn
1407*d2201f2fSdrahn static struct options model_opts[] =
1408*d2201f2fSdrahn {
1409*d2201f2fSdrahn { "P03", OPTION_PDP11_03, "same as ..." },
1410*d2201f2fSdrahn { "P04", OPTION_PDP11_04, "same as ..." },
1411*d2201f2fSdrahn { "P05", OPTION_PDP11_05, "same as ..." },
1412*d2201f2fSdrahn { "P10", OPTION_PDP11_10, "same as ..." },
1413*d2201f2fSdrahn { "P15", OPTION_PDP11_15, "same as ..." },
1414*d2201f2fSdrahn { "P20", OPTION_PDP11_20, "same as ..." },
1415*d2201f2fSdrahn { "P21", OPTION_PDP11_21, "same as ..." },
1416*d2201f2fSdrahn { "P24", OPTION_PDP11_24, "same as ..." },
1417*d2201f2fSdrahn { "P34", OPTION_PDP11_34, "same as ..." },
1418*d2201f2fSdrahn { "P34a", OPTION_PDP11_34A, "same as ..." },
1419*d2201f2fSdrahn { "P40", OPTION_PDP11_40, "same as ..." },
1420*d2201f2fSdrahn { "P44", OPTION_PDP11_44, "same as ..." },
1421*d2201f2fSdrahn { "P45", OPTION_PDP11_45, "same as ..." },
1422*d2201f2fSdrahn { "P50", OPTION_PDP11_50, "same as ..." },
1423*d2201f2fSdrahn { "P53", OPTION_PDP11_53, "same as ..." },
1424*d2201f2fSdrahn { "P55", OPTION_PDP11_55, "same as ..." },
1425*d2201f2fSdrahn { "P60", OPTION_PDP11_60, "same as ..." },
1426*d2201f2fSdrahn { "P70", OPTION_PDP11_70, "same as ..." },
1427*d2201f2fSdrahn { "P73", OPTION_PDP11_73, "same as ..." },
1428*d2201f2fSdrahn { "P83", OPTION_PDP11_83, "same as ..." },
1429*d2201f2fSdrahn { "P84", OPTION_PDP11_84, "same as ..." },
1430*d2201f2fSdrahn { "P93", OPTION_PDP11_93, "same as ..." },
1431*d2201f2fSdrahn { "P94", OPTION_PDP11_94, "same as ..." },
1432*d2201f2fSdrahn };
1433*d2201f2fSdrahn
1434*d2201f2fSdrahn struct
1435*d2201f2fSdrahn {
1436*d2201f2fSdrahn const char *title;
1437*d2201f2fSdrahn struct options *opts;
1438*d2201f2fSdrahn int num;
1439*d2201f2fSdrahn } all_opts[] =
1440*d2201f2fSdrahn {
1441*d2201f2fSdrahn { "PDP-11 instruction set extentions",
1442*d2201f2fSdrahn extension_opts,
1443*d2201f2fSdrahn sizeof extension_opts / sizeof extension_opts[0] },
1444*d2201f2fSdrahn { "PDP-11 CPU model options",
1445*d2201f2fSdrahn cpu_opts,
1446*d2201f2fSdrahn sizeof cpu_opts / sizeof cpu_opts[0] },
1447*d2201f2fSdrahn { "PDP-11 machine model options",
1448*d2201f2fSdrahn model_opts,
1449*d2201f2fSdrahn sizeof model_opts / sizeof model_opts[0] },
1450*d2201f2fSdrahn };
1451*d2201f2fSdrahn
1452*d2201f2fSdrahn int
1453*d2201f2fSdrahn parse_match (char *arg, char *pattern)
1454*d2201f2fSdrahn {
1455*d2201f2fSdrahn int yes = 1;
1456*d2201f2fSdrahn
1457*d2201f2fSdrahn while (*pattern)
1458*d2201f2fSdrahn {
1459*d2201f2fSdrahn switch (*pattern++)
1460*d2201f2fSdrahn {
1461*d2201f2fSdrahn case 'N':
1462*d2201f2fSdrahn if (strncmp (arg, "no-") == 0)
1463*d2201f2fSdrahn {
1464*d2201f2fSdrahn yes = 0;
1465*d2201f2fSdrahn arg += 3;
1466*d2201f2fSdrahn }
1467*d2201f2fSdrahn break;
1468*d2201f2fSdrahn
1469*d2201f2fSdrahn case 'K':
1470*d2201f2fSdrahn if (arg[0] == 'k')
1471*d2201f2fSdrahn arg++;
1472*d2201f2fSdrahn break;
1473*d2201f2fSdrahn
1474*d2201f2fSdrahn case 'D':
1475*d2201f2fSdrahn if (strncmp (arg, "kd", 2) == 0)
1476*d2201f2fSdrahn arg +=2;
1477*d2201f2fSdrahn break;
1478*d2201f2fSdrahn
1479*d2201f2fSdrahn case 'P':
1480*d2201f2fSdrahn if (strncmp (arg, "pdp-11/", 7) == 0)
1481*d2201f2fSdrahn arg += 7;
1482*d2201f2fSdrahn else if (strncmp (arg, "pdp11/", 6) == 0)
1483*d2201f2fSdrahn arg += 6;
1484*d2201f2fSdrahn else if (strncmp (arg, "11/", 3) == 0)
1485*d2201f2fSdrahn arg += 3;
1486*d2201f2fSdrahn break;
1487*d2201f2fSdrahn
1488*d2201f2fSdrahn case '_':
1489*d2201f2fSdrahn if (arg[0] == "-")
1490*d2201f2fSdrahn {
1491*d2201f2fSdrahn if (*++arg == 0)
1492*d2201f2fSdrahn return 0;
1493*d2201f2fSdrahn }
1494*d2201f2fSdrahn break;
1495*d2201f2fSdrahn
1496*d2201f2fSdrahn case '*':
1497*d2201f2fSdrahn return 1;
1498*d2201f2fSdrahn
1499*d2201f2fSdrahn default:
1500*d2201f2fSdrahn if (*arg++ != pattern[-1])
1501*d2201f2fSdrahn return 0;
1502*d2201f2fSdrahn }
1503*d2201f2fSdrahn }
1504*d2201f2fSdrahn
1505*d2201f2fSdrahn return arg[0] == 0;
1506*d2201f2fSdrahn }
1507*d2201f2fSdrahn
1508*d2201f2fSdrahn int
1509*d2201f2fSdrahn fprint_opt (stream, pattern)
1510*d2201f2fSdrahn FILE *stream;
1511*d2201f2fSdrahn const char *pattern;
1512*d2201f2fSdrahn {
1513*d2201f2fSdrahn int n;
1514*d2201f2fSdrahn
1515*d2201f2fSdrahn while (*pattern)
1516*d2201f2fSdrahn {
1517*d2201f2fSdrahn switch (*pattern++)
1518*d2201f2fSdrahn {
1519*d2201f2fSdrahn case 'N':
1520*d2201f2fSdrahn n += fprintf (stream, "(no-)");
1521*d2201f2fSdrahn break;
1522*d2201f2fSdrahn
1523*d2201f2fSdrahn case 'K':
1524*d2201f2fSdrahn n += fprintf (stream, "k");
1525*d2201f2fSdrahn break;
1526*d2201f2fSdrahn
1527*d2201f2fSdrahn case 'P':
1528*d2201f2fSdrahn n += fprintf (stream "11/");
1529*d2201f2fSdrahn break;
1530*d2201f2fSdrahn
1531*d2201f2fSdrahn case 'D':
1532*d2201f2fSdrahn case '_':
1533*d2201f2fSdrahn case '*':
1534*d2201f2fSdrahn break;
1535*d2201f2fSdrahn
1536*d2201f2fSdrahn default:
1537*d2201f2fSdrahn fputc (pattern[-1], stream);
1538*d2201f2fSdrahn n++;
1539*d2201f2fSdrahn }
1540*d2201f2fSdrahn }
1541*d2201f2fSdrahn
1542*d2201f2fSdrahn return n;
1543*d2201f2fSdrahn }
1544*d2201f2fSdrahn
1545*d2201f2fSdrahn int
1546*d2201f2fSdrahn parse_option (char *arg)
1547*d2201f2fSdrahn {
1548*d2201f2fSdrahn int i, j;
1549*d2201f2fSdrahn
1550*d2201f2fSdrahn for (i = 0; i < sizeof all_opts / sizeof all_opts[0]; i++)
1551*d2201f2fSdrahn {
1552*d2201f2fSdrahn for (j = 0; j < all_opts[i].num; j++)
1553*d2201f2fSdrahn {
1554*d2201f2fSdrahn if (parse_match (arg, all_opts[i].opts[j].pattern))
1555*d2201f2fSdrahn {
1556*d2201f2fSdrahn set_option (all_opts[i].opts[j].opt);
1557*d2201f2fSdrahn return 1;
1558*d2201f2fSdrahn }
1559*d2201f2fSdrahn }
1560*d2201f2fSdrahn }
1561*d2201f2fSdrahn
1562*d2201f2fSdrahn return 0;
1563*d2201f2fSdrahn }
1564*d2201f2fSdrahn
1565*d2201f2fSdrahn static void
1566*d2201f2fSdrahn fprint_space (stream, n)
1567*d2201f2fSdrahn FILE *stream;
1568*d2201f2fSdrahn int n;
1569*d2201f2fSdrahn {
1570*d2201f2fSdrahn while (n--)
1571*d2201f2fSdrahn fputc (' ', stream);
1572*d2201f2fSdrahn }
1573*d2201f2fSdrahn
1574*d2201f2fSdrahn void
1575*d2201f2fSdrahn md_show_usage (stream)
1576*d2201f2fSdrahn FILE *stream;
1577*d2201f2fSdrahn {
1578*d2201f2fSdrahn int i, j, n;
1579*d2201f2fSdrahn
1580*d2201f2fSdrahn for (i = 0; i < sizeof all_opts / sizeof all_opts[0]; i++)
1581*d2201f2fSdrahn {
1582*d2201f2fSdrahn fprintf (stream "\n%s:\n\n", all_opts[i].title);
1583*d2201f2fSdrahn
1584*d2201f2fSdrahn for (j = 0; j < all_opts[i].num; j++)
1585*d2201f2fSdrahn {
1586*d2201f2fSdrahn fprintf (stream, "-m");
1587*d2201f2fSdrahn n = fprintf_opt (stream, all_opts[i].opts[j].pattern);
1588*d2201f2fSdrahn fprint_space (stream, 22 - n);
1589*d2201f2fSdrahn fprintf (stream, "%s\n", all_opts[i].opts[j].description);
1590*d2201f2fSdrahn }
1591*d2201f2fSdrahn }
1592*d2201f2fSdrahn }
1593*d2201f2fSdrahn */
1594*d2201f2fSdrahn
1595*d2201f2fSdrahn void
md_show_usage(stream)1596*d2201f2fSdrahn md_show_usage (stream)
1597*d2201f2fSdrahn FILE *stream;
1598*d2201f2fSdrahn {
1599*d2201f2fSdrahn fprintf (stream, "\
1600*d2201f2fSdrahn \n\
1601*d2201f2fSdrahn PDP-11 instruction set extentions:\n\
1602*d2201f2fSdrahn \n\
1603*d2201f2fSdrahn -m(no-)cis allow (disallow) commersial instruction set\n\
1604*d2201f2fSdrahn -m(no-)csm allow (disallow) CSM instruction\n\
1605*d2201f2fSdrahn -m(no-)eis allow (disallow) full extended instruction set\n\
1606*d2201f2fSdrahn -m(no-)fis allow (disallow) KEV11 floating-point instructions\n\
1607*d2201f2fSdrahn -m(no-)fpp allow (disallow) FP-11 floating-point instructions\n\
1608*d2201f2fSdrahn -m(no-)fpu allow (disallow) FP-11 floating-point instructions\n\
1609*d2201f2fSdrahn -m(no-)limited-eis allow (disallow) limited extended instruction set\n\
1610*d2201f2fSdrahn -m(no-)mfpt allow (disallow) processor type instruction\n\
1611*d2201f2fSdrahn -m(no-)multiproc allow (disallow) multiprocessor instructions\n\
1612*d2201f2fSdrahn -m(no-)mxps allow (disallow) processor status instructions\n\
1613*d2201f2fSdrahn -m(no-)spl allow (disallow) SPL instruction\n\
1614*d2201f2fSdrahn -m(no-)ucode allow (disallow) microcode instructions\n\
1615*d2201f2fSdrahn -mall-extensions allow all instruction set extensions\n\
1616*d2201f2fSdrahn (this is the default)\n\
1617*d2201f2fSdrahn -mno-extentions disallow all instruction set extensions\n\
1618*d2201f2fSdrahn -pic generate position-indepenent code\n\
1619*d2201f2fSdrahn \n\
1620*d2201f2fSdrahn PDP-11 CPU model options:\n\
1621*d2201f2fSdrahn \n\
1622*d2201f2fSdrahn -mka11* KA11 CPU. base line instruction set only\n\
1623*d2201f2fSdrahn -mkb11* KB11 CPU. enable full EIS and SPL\n\
1624*d2201f2fSdrahn -mkd11a* KD11-A CPU. enable limited EIS\n\
1625*d2201f2fSdrahn -mkd11b* KD11-B CPU. base line instruction set only\n\
1626*d2201f2fSdrahn -mkd11d* KD11-D CPU. base line instruction set only\n\
1627*d2201f2fSdrahn -mkd11e* KD11-E CPU. enable full EIS, MTPS, and MFPS\n\
1628*d2201f2fSdrahn -mkd11f* KD11-F CPU. enable limited EIS, MTPS, and MFPS\n\
1629*d2201f2fSdrahn -mkd11h* KD11-H CPU. enable limited EIS, MTPS, and MFPS\n\
1630*d2201f2fSdrahn -mkd11q* KD11-Q CPU. enable limited EIS, MTPS, and MFPS\n\
1631*d2201f2fSdrahn -mkd11k* KD11-K CPU. enable full EIS, MTPS, MFPS, LDUB, MED,\n\
1632*d2201f2fSdrahn XFC, and MFPT\n\
1633*d2201f2fSdrahn -mkd11z* KD11-Z CPU. enable full EIS, MTPS, MFPS, MFPT, SPL,\n\
1634*d2201f2fSdrahn and CSM\n\
1635*d2201f2fSdrahn -mf11* F11 CPU. enable full EIS, MFPS, MTPS, and MFPT\n\
1636*d2201f2fSdrahn -mj11* J11 CPU. enable full EIS, MTPS, MFPS, MFPT, SPL,\n\
1637*d2201f2fSdrahn CSM, TSTSET, and WRTLCK\n\
1638*d2201f2fSdrahn -mt11* T11 CPU. enable limited EIS, MTPS, and MFPS\n\
1639*d2201f2fSdrahn \n\
1640*d2201f2fSdrahn PDP-11 machine model options:\n\
1641*d2201f2fSdrahn \n\
1642*d2201f2fSdrahn -m11/03 same as -mkd11f\n\
1643*d2201f2fSdrahn -m11/04 same as -mkd11d\n\
1644*d2201f2fSdrahn -m11/05 same as -mkd11b\n\
1645*d2201f2fSdrahn -m11/10 same as -mkd11b\n\
1646*d2201f2fSdrahn -m11/15 same as -mka11\n\
1647*d2201f2fSdrahn -m11/20 same as -mka11\n\
1648*d2201f2fSdrahn -m11/21 same as -mt11\n\
1649*d2201f2fSdrahn -m11/23 same as -mf11\n\
1650*d2201f2fSdrahn -m11/24 same as -mf11\n\
1651*d2201f2fSdrahn -m11/34 same as -mkd11e\n\
1652*d2201f2fSdrahn -m11/34a same as -mkd11e -mfpp\n\
1653*d2201f2fSdrahn -m11/35 same as -mkd11a\n\
1654*d2201f2fSdrahn -m11/40 same as -mkd11a\n\
1655*d2201f2fSdrahn -m11/44 same as -mkd11z\n\
1656*d2201f2fSdrahn -m11/45 same as -mkb11\n\
1657*d2201f2fSdrahn -m11/50 same as -mkb11\n\
1658*d2201f2fSdrahn -m11/53 same as -mj11\n\
1659*d2201f2fSdrahn -m11/55 same as -mkb11\n\
1660*d2201f2fSdrahn -m11/60 same as -mkd11k\n\
1661*d2201f2fSdrahn -m11/70 same as -mkb11\n\
1662*d2201f2fSdrahn -m11/73 same as -mj11\n\
1663*d2201f2fSdrahn -m11/83 same as -mj11\n\
1664*d2201f2fSdrahn -m11/84 same as -mj11\n\
1665*d2201f2fSdrahn -m11/93 same as -mj11\n\
1666*d2201f2fSdrahn -m11/94 same as -mj11\n\
1667*d2201f2fSdrahn ");
1668*d2201f2fSdrahn }
1669*d2201f2fSdrahn
1670*d2201f2fSdrahn symbolS *
md_undefined_symbol(name)1671*d2201f2fSdrahn md_undefined_symbol (name)
1672*d2201f2fSdrahn char *name ATTRIBUTE_UNUSED;
1673*d2201f2fSdrahn {
1674*d2201f2fSdrahn return 0;
1675*d2201f2fSdrahn }
1676*d2201f2fSdrahn
1677*d2201f2fSdrahn valueT
md_section_align(segment,size)1678*d2201f2fSdrahn md_section_align (segment, size)
1679*d2201f2fSdrahn segT segment ATTRIBUTE_UNUSED;
1680*d2201f2fSdrahn valueT size;
1681*d2201f2fSdrahn {
1682*d2201f2fSdrahn return (size + 1) & ~1;
1683*d2201f2fSdrahn }
1684*d2201f2fSdrahn
1685*d2201f2fSdrahn long
md_pcrel_from(fixP)1686*d2201f2fSdrahn md_pcrel_from (fixP)
1687*d2201f2fSdrahn fixS *fixP;
1688*d2201f2fSdrahn {
1689*d2201f2fSdrahn return fixP->fx_frag->fr_address + fixP->fx_where + fixP->fx_size;
1690*d2201f2fSdrahn }
1691*d2201f2fSdrahn
1692*d2201f2fSdrahn /* Translate internal representation of relocation info to BFD target
1693*d2201f2fSdrahn format. */
1694*d2201f2fSdrahn arelent *
tc_gen_reloc(section,fixp)1695*d2201f2fSdrahn tc_gen_reloc (section, fixp)
1696*d2201f2fSdrahn asection *section ATTRIBUTE_UNUSED;
1697*d2201f2fSdrahn fixS *fixp;
1698*d2201f2fSdrahn {
1699*d2201f2fSdrahn arelent *reloc;
1700*d2201f2fSdrahn bfd_reloc_code_real_type code;
1701*d2201f2fSdrahn
1702*d2201f2fSdrahn reloc = (arelent *) xmalloc (sizeof (arelent));
1703*d2201f2fSdrahn
1704*d2201f2fSdrahn reloc->sym_ptr_ptr = (asymbol **) xmalloc (sizeof (asymbol *));
1705*d2201f2fSdrahn *reloc->sym_ptr_ptr = symbol_get_bfdsym (fixp->fx_addsy);
1706*d2201f2fSdrahn reloc->address = fixp->fx_frag->fr_address + fixp->fx_where;
1707*d2201f2fSdrahn
1708*d2201f2fSdrahn /* This is taken account for in md_apply_fix3(). */
1709*d2201f2fSdrahn reloc->addend = -symbol_get_bfdsym (fixp->fx_addsy)->section->vma;
1710*d2201f2fSdrahn
1711*d2201f2fSdrahn switch (fixp->fx_r_type)
1712*d2201f2fSdrahn {
1713*d2201f2fSdrahn case BFD_RELOC_16:
1714*d2201f2fSdrahn if (fixp->fx_pcrel)
1715*d2201f2fSdrahn code = BFD_RELOC_16_PCREL;
1716*d2201f2fSdrahn else
1717*d2201f2fSdrahn code = BFD_RELOC_16;
1718*d2201f2fSdrahn break;
1719*d2201f2fSdrahn
1720*d2201f2fSdrahn case BFD_RELOC_16_PCREL:
1721*d2201f2fSdrahn code = BFD_RELOC_16_PCREL;
1722*d2201f2fSdrahn break;
1723*d2201f2fSdrahn
1724*d2201f2fSdrahn default:
1725*d2201f2fSdrahn BAD_CASE (fixp->fx_r_type);
1726*d2201f2fSdrahn return NULL;
1727*d2201f2fSdrahn }
1728*d2201f2fSdrahn
1729*d2201f2fSdrahn reloc->howto = bfd_reloc_type_lookup (stdoutput, code);
1730*d2201f2fSdrahn
1731*d2201f2fSdrahn if (reloc->howto == NULL)
1732*d2201f2fSdrahn {
1733*d2201f2fSdrahn as_bad_where (fixp->fx_file, fixp->fx_line,
1734*d2201f2fSdrahn "Can not represent %s relocation in this object file format",
1735*d2201f2fSdrahn bfd_get_reloc_code_name (code));
1736*d2201f2fSdrahn return NULL;
1737*d2201f2fSdrahn }
1738*d2201f2fSdrahn
1739*d2201f2fSdrahn return reloc;
1740*d2201f2fSdrahn }
1741*d2201f2fSdrahn
1742*d2201f2fSdrahn void
pseudo_bss(c)1743*d2201f2fSdrahn pseudo_bss (c)
1744*d2201f2fSdrahn int c ATTRIBUTE_UNUSED;
1745*d2201f2fSdrahn {
1746*d2201f2fSdrahn int temp;
1747*d2201f2fSdrahn
1748*d2201f2fSdrahn temp = get_absolute_expression ();
1749*d2201f2fSdrahn subseg_set (bss_section, temp);
1750*d2201f2fSdrahn demand_empty_rest_of_line ();
1751*d2201f2fSdrahn }
1752*d2201f2fSdrahn
1753*d2201f2fSdrahn void
pseudo_even(c)1754*d2201f2fSdrahn pseudo_even (c)
1755*d2201f2fSdrahn int c ATTRIBUTE_UNUSED;
1756*d2201f2fSdrahn {
1757*d2201f2fSdrahn int alignment = 1; /* 2^1 */
1758*d2201f2fSdrahn frag_align (alignment, 0, 1);
1759*d2201f2fSdrahn record_alignment (now_seg, alignment);
1760*d2201f2fSdrahn }
1761*d2201f2fSdrahn
1762*d2201f2fSdrahn /* end of tc-pdp11.c */
1763