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1.1 root 1: /* Definitions of target machine for GNU compiler. SONY NEWS-OS 3.0 version.
2: Copyright (C) 1987, 1989 Free Software Foundation, Inc.
3:
4: This file is part of GNU CC.
5:
6: GNU CC is free software; you can redistribute it and/or modify
7: it under the terms of the GNU General Public License as published by
8: the Free Software Foundation; either version 2, or (at your option)
9: any later version.
10:
11: GNU CC is distributed in the hope that it will be useful,
12: but WITHOUT ANY WARRANTY; without even the implied warranty of
13: MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14: GNU General Public License for more details.
15:
16: You should have received a copy of the GNU General Public License
17: along with GNU CC; see the file COPYING. If not, write to
18: the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */
19:
20: #ifndef USE_GAS
21: /* This controls conditionals in m68k.h. */
22: #define MOTOROLA /* Use Motorola syntax rather than "MIT" */
23: #define SGS_NO_LI /* Suppress jump table label usage */
24: #endif
25:
26: #include "m68k.h"
27:
28: /* See m68k.h. 7 means 68020 with 68881. */
29:
30: #define TARGET_DEFAULT 7
31:
32: /* Define __HAVE_68881__ in preprocessor, unless -msoft-float is specified.
33: This will control the use of inline 68881 insns in certain macros. */
34:
35: #define CPP_SPEC "%{!msoft-float:-D__HAVE_68881__}"
36:
37: /* Names to predefine in the preprocessor for this target machine. */
38: /* These are the ones defined by Sony, plus mc68000 for uniformity with
39: GCC on other 68000 systems. */
40:
41: #define CPP_PREDEFINES "-Dunix -Dbsd43 -Dsony -Dsony_news -Dmc68000 -Dmc68020 -Dnews700"
42:
43: /* These conditionals tested for different submodels,
44: but they were incorrect since they tested the host rather than the target.
45: The choice of model shouldn't actually matter. */
46:
47: #if 0
48: #ifdef news800
49: #define CPP_PREDEFINES "-Dunix -Dbsd43 -Dsony -Dsony_news -Dmc68000 -Dmc68020 -Dnews800"
50: #endif
51: #ifdef news900
52: #define CPP_PREDEFINES "-Dunix -Dbsd43 -Dsony -Dsony_news -Dmc68000 -Dmc68020 -Dnews900"
53: #endif
54: #ifdef news1500
55: #define CPP_PREDEFINES "-Dunix -Dbsd43 -Dsony -Dsony_news -Dmc68000 -Dmc68020 -Dmc68030 -Dnews1500"
56: #endif
57: #ifdef news1700
58: #define CPP_PREDEFINES "-Dunix -Dbsd43 -Dsony -Dsony_news -Dmc68000 -Dmc68020 -Dmc68030 -Dnews1700"
59: #endif
60: #ifdef news1800
61: #define CPP_PREDEFINES "-Dunix -Dbsd43 -Dsony -Dsony_news -Dmc68000 -Dmc68020 -Dmc68030 -Dnews1800"
62: #endif
63: #ifdef news1900
64: #define CPP_PREDEFINES "-Dunix -Dbsd43 -Dsony -Dsony_news -Dmc68000 -Dmc68020 -Dmc68030 -Dnews1900"
65: #endif
66: #endif
67:
68: /* Link with libg.a when debugging, for dbx's sake. */
69:
70: #define LIB_SPEC "%{g:-lg} %{!p:%{!pg:-lc}}%{p:-lc_p}%{pg:-lc_p} "
71:
72: /* This is BSD, so it wants DBX format. */
73:
74: #define DBX_DEBUGGING_INFO
75:
76: #if 0
77: /* This is to be compatible with types.h.
78: It was found to be necessary with Newsos 3. */
79:
80: #define SIZE_TYPE "long int"
81: #endif
82:
83: /* Override parts of m68k.h to fit Sony's assembler syntax. */
84:
85: #undef BIGGEST_ALIGNMENT
86: #undef CALL_USED_REGISTERS
87: #undef FUNCTION_VALUE
88: #undef LIBCALL_VALUE
89: #undef FUNCTION_PROFILER
90:
91: #ifdef MOTOROLA
92: #undef FUNCTION_PROLOGUE
93: #undef FUNCTION_EPILOGUE
94: #undef REGISTER_NAMES
95: #undef ASM_OUTPUT_REG_PUSH
96: #undef ASM_OUTPUT_REG_POP
97: #undef ASM_OUTPUT_DOUBLE
98: #undef ASM_OUTPUT_SKIP
99: #undef ASM_FORMAT_PRIVATE_NAME
100: #undef PRINT_OPERAND
101: #undef PRINT_OPERAND_ADDRESS
102: #endif
103:
104: #undef ASM_OUTPUT_ALIGN
105:
106: /* There is no point aligning anything to a rounder boundary than this. */
107: #define BIGGEST_ALIGNMENT 32
108:
109: /* A bitfield declared as `int' forces `int' alignment for the struct. */
110: #define PCC_BITFIELD_TYPE_MATTERS 1
111:
112: /* NEWS makes d2, d3, fp2 and fp3 unsaved registers, unlike the Sun system. */
113:
114: #define CALL_USED_REGISTERS \
115: {1, 1, 1, 1, 0, 0, 0, 0, \
116: 1, 1, 0, 0, 0, 0, 0, 1, \
117: 1, 1, 1, 1, 0, 0, 0, 0}
118:
119: /* NEWS returns floats and doubles in fp0, not d0/d1. */
120:
121: #define FUNCTION_VALUE(VALTYPE,FUNC) LIBCALL_VALUE (TYPE_MODE (VALTYPE))
122:
123: #define LIBCALL_VALUE(MODE) \
124: gen_rtx (REG, (MODE), ((TARGET_68881 && ((MODE) == SFmode || (MODE) == DFmode)) ? 16 : 0))
125:
126: #define ASM_OUTPUT_ALIGN(FILE,LOG) \
127: fprintf (FILE, "\t.align %d\n", (LOG))
128:
129: #ifdef MOTOROLA
130:
131: /* Don't try to define `gcc_compiled.' since the assembler does not
132: accept symbols with periods. This is no real loss since GDB only
133: really needs it for parms passed in registers. */
134: #define ASM_IDENTIFY_GCC(FILE)
135:
136: #define FUNCTION_PROLOGUE(FILE, SIZE) \
137: { register int regno; \
138: register int mask = 0; \
139: extern char call_used_regs[]; \
140: int fsize = ((SIZE) + 3) & -4; \
141: if (frame_pointer_needed) \
142: { if (fsize < 0x8000) \
143: fprintf (FILE, "\tlink fp,#%d\n", -fsize); \
144: else if (TARGET_68020) \
145: fprintf (FILE, "\tlink.l fp,#%d\n", -fsize); \
146: else \
147: fprintf (FILE, "\tlink fp,#0\n\tsub.l #%d,sp\n", fsize); } \
148: for (regno = 16; regno < FIRST_PSEUDO_REGISTER; regno++) \
149: if (regs_ever_live[regno] && ! call_used_regs[regno]) \
150: mask |= 1 << (regno - 16); \
151: if (mask != 0) \
152: fprintf (FILE, "\tfmovem.x #0x%x,-(sp)\n", mask & 0xff); \
153: mask = 0; \
154: for (regno = 0; regno < 16; regno++) \
155: if (regs_ever_live[regno] && ! call_used_regs[regno]) \
156: mask |= 1 << (15 - regno); \
157: if (frame_pointer_needed) \
158: mask &= ~ (1 << (15-FRAME_POINTER_REGNUM)); \
159: if (exact_log2 (mask) >= 0) \
160: fprintf (FILE, "\tmove.l %s,-(sp)\n", reg_names[15 - exact_log2 (mask)]); \
161: else if (mask) fprintf (FILE, "\tmovem.l #0x%x,-(sp)\n", mask); }
162:
163: #define FUNCTION_PROFILER(FILE, LABEL_NO) \
164: fprintf (FILE, "\tmove.l #LP%d,d0\n\tjsr mcount\n", (LABEL_NO));
165:
166: #define FUNCTION_EPILOGUE(FILE, SIZE) \
167: { register int regno; \
168: register int mask, fmask; \
169: register int nregs; \
170: int offset, foffset; \
171: extern char call_used_regs[]; \
172: int fsize = ((SIZE) + 3) & -4; \
173: int big = 0; \
174: nregs = 0; fmask = 0; \
175: for (regno = 16; regno < FIRST_PSEUDO_REGISTER; regno++) \
176: if (regs_ever_live[regno] && ! call_used_regs[regno]) \
177: { nregs++; fmask |= 1 << (23 - regno); } \
178: foffset = nregs * 12; \
179: nregs = 0; mask = 0; \
180: if (frame_pointer_needed) regs_ever_live[FRAME_POINTER_REGNUM] = 0; \
181: for (regno = 0; regno < 16; regno++) \
182: if (regs_ever_live[regno] && ! call_used_regs[regno]) \
183: { nregs++; mask |= 1 << regno; } \
184: offset = foffset + nregs * 4; \
185: if (offset + fsize >= 0x8000 \
186: && frame_pointer_needed \
187: && (mask || fmask)) \
188: { fprintf (FILE, "\tmove.l #%d,a0\n", -fsize); \
189: fsize = 0, big = 1; } \
190: if (exact_log2 (mask) >= 0) { \
191: if (big) \
192: fprintf (FILE, "\tmove.l (-%d,fp,a0.l),%s\n", \
193: offset + fsize, reg_names[exact_log2 (mask)]); \
194: else if (! frame_pointer_needed) \
195: fprintf (FILE, "\tmove.l (sp)+,%s\n", \
196: reg_names[exact_log2 (mask)]); \
197: else \
198: fprintf (FILE, "\tmove.l (-%d,fp),%s\n", \
199: offset + fsize, reg_names[exact_log2 (mask)]); } \
200: else if (mask) { \
201: if (big) \
202: fprintf (FILE, "\tmovem.l (-%d,fp,a0.l),#0x%x\n", \
203: offset + fsize, mask); \
204: else if (! frame_pointer_needed) \
205: fprintf (FILE, "\tmovem.l (sp)+,#0x%x\n", mask); \
206: else \
207: fprintf (FILE, "\tmovem.l (-%d,fp),#0x%x\n", \
208: offset + fsize, mask); } \
209: if (fmask) { \
210: if (big) \
211: fprintf (FILE, "\tfmovem.x (-%d,fp,a0.l),#0x%x\n", \
212: foffset + fsize, fmask); \
213: else if (! frame_pointer_needed) \
214: fprintf (FILE, "\tfmovem.x (sp)+,#0x%x\n", fmask); \
215: else \
216: fprintf (FILE, "\tfmovem.x (-%d,fp),#0x%x\n", \
217: foffset + fsize, fmask); } \
218: if (frame_pointer_needed) \
219: fprintf (FILE, "\tunlk fp\n"); \
220: if (current_function_pops_args) \
221: fprintf (FILE, "\trtd #%d\n", current_function_pops_args); \
222: else fprintf (FILE, "\trts\n"); }
223:
224: /* Difference from m68k.h is in `fp' instead of `a6'. */
225:
226: #define REGISTER_NAMES \
227: {"d0", "d1", "d2", "d3", "d4", "d5", "d6", "d7", \
228: "a0", "a1", "a2", "a3", "a4", "a5", "fp", "sp", \
229: "fp0", "fp1", "fp2", "fp3", "fp4", "fp5", "fp6", "fp7"}
230:
231: /* This is how to output an insn to push a register on the stack.
232: It need not be very fast code. */
233:
234: #define ASM_OUTPUT_REG_PUSH(FILE,REGNO) \
235: fprintf (FILE, "\tmove.l %s,-(sp)\n", reg_names[REGNO])
236:
237: /* This is how to output an insn to pop a register from the stack.
238: It need not be very fast code. */
239:
240: #define ASM_OUTPUT_REG_POP(FILE,REGNO) \
241: fprintf (FILE, "\tmove.l (sp)+,%s\n", reg_names[REGNO])
242:
243: #define ASM_OUTPUT_DOUBLE(FILE,VALUE) \
244: fprintf (FILE, "\t.double 0d%.20e\n", (VALUE))
245:
246: #define ASM_OUTPUT_SKIP(FILE,SIZE) \
247: fprintf (FILE, "\t.space %u\n", (SIZE))
248:
249: /* Store in OUTPUT a string (made with alloca) containing
250: an assembler-name for a local static variable named NAME.
251: LABELNO is an integer which is different for each call. */
252:
253: #define ASM_FORMAT_PRIVATE_NAME(OUTPUT, NAME, LABELNO) \
254: ( (OUTPUT) = (char *) alloca (strlen ((NAME)) + 13), \
255: sprintf ((OUTPUT), "%s$$$%d", (NAME), (LABELNO)))
256:
257: #define PRINT_OPERAND(FILE, X, CODE) \
258: { if (CODE == '.') fprintf (FILE, "."); \
259: else if (CODE == '#') fprintf (FILE, "#"); \
260: else if (CODE == '-') fprintf (FILE, "-(sp)"); \
261: else if (CODE == '+') fprintf (FILE, "(sp)+"); \
262: else if (CODE == '@') fprintf (FILE, "(sp)"); \
1.1.1.2 ! root 263: else if (CODE == '!') fprintf (FILE, "fpcr"); \
1.1 root 264: else if (CODE == '$') {if (TARGET_68040_ONLY) fprintf (FILE, "s");} \
265: else if (CODE == '&') {if (TARGET_68040_ONLY) fprintf (FILE, "d");} \
266: else if (GET_CODE (X) == REG) \
267: fprintf (FILE, "%s", reg_names[REGNO (X)]); \
268: else if (GET_CODE (X) == MEM) \
269: output_address (XEXP (X, 0)); \
270: else if (GET_CODE (X) == CONST_DOUBLE && GET_MODE (X) == SFmode) \
271: { union { double d; int i[2]; } u; \
272: union { float f; int i; } u1; \
273: u.i[0] = CONST_DOUBLE_LOW (X); u.i[1] = CONST_DOUBLE_HIGH (X); \
274: u1.f = u.d; \
275: if (CODE == 'f') \
276: fprintf (FILE, "#0f%.9e", u1.f); \
277: else \
278: fprintf (FILE, "#0x%x", u1.i); } \
279: else if (GET_CODE (X) == CONST_DOUBLE && GET_MODE (X) != DImode) \
280: { union { double d; int i[2]; } u; \
281: u.i[0] = CONST_DOUBLE_LOW (X); u.i[1] = CONST_DOUBLE_HIGH (X); \
282: fprintf (FILE, "#0d%.20e", u.d); } \
283: else if (CODE == 'b') output_addr_const (FILE, X); \
284: else { putc ('#', FILE); output_addr_const (FILE, X); }}
285:
286: #define PRINT_OPERAND_ADDRESS(FILE, ADDR) \
287: { register rtx reg1, reg2, breg, ireg; \
288: register rtx addr = ADDR; \
289: rtx offset; \
290: switch (GET_CODE (addr)) \
291: { \
292: case REG: \
293: fprintf (FILE, "(%s)", reg_names[REGNO (addr)]); \
294: break; \
295: case PRE_DEC: \
296: fprintf (FILE, "-(%s)", reg_names[REGNO (XEXP (addr, 0))]); \
297: break; \
298: case POST_INC: \
299: fprintf (FILE, "(%s)+", reg_names[REGNO (XEXP (addr, 0))]); \
300: break; \
301: case PLUS: \
302: reg1 = 0; reg2 = 0; \
303: ireg = 0; breg = 0; \
304: offset = 0; \
305: if (CONSTANT_ADDRESS_P (XEXP (addr, 0))) \
306: { \
307: offset = XEXP (addr, 0); \
308: addr = XEXP (addr, 1); \
309: } \
310: else if (CONSTANT_ADDRESS_P (XEXP (addr, 1))) \
311: { \
312: offset = XEXP (addr, 1); \
313: addr = XEXP (addr, 0); \
314: } \
315: if (GET_CODE (addr) != PLUS) ; \
316: else if (GET_CODE (XEXP (addr, 0)) == SIGN_EXTEND) \
317: { \
318: reg1 = XEXP (addr, 0); \
319: addr = XEXP (addr, 1); \
320: } \
321: else if (GET_CODE (XEXP (addr, 1)) == SIGN_EXTEND) \
322: { \
323: reg1 = XEXP (addr, 1); \
324: addr = XEXP (addr, 0); \
325: } \
326: else if (GET_CODE (XEXP (addr, 0)) == MULT) \
327: { \
328: reg1 = XEXP (addr, 0); \
329: addr = XEXP (addr, 1); \
330: } \
331: else if (GET_CODE (XEXP (addr, 1)) == MULT) \
332: { \
333: reg1 = XEXP (addr, 1); \
334: addr = XEXP (addr, 0); \
335: } \
336: else if (GET_CODE (XEXP (addr, 0)) == REG) \
337: { \
338: reg1 = XEXP (addr, 0); \
339: addr = XEXP (addr, 1); \
340: } \
341: else if (GET_CODE (XEXP (addr, 1)) == REG) \
342: { \
343: reg1 = XEXP (addr, 1); \
344: addr = XEXP (addr, 0); \
345: } \
346: if (GET_CODE (addr) == REG || GET_CODE (addr) == MULT \
347: || GET_CODE (addr) == SIGN_EXTEND) \
348: { if (reg1 == 0) reg1 = addr; else reg2 = addr; addr = 0; } \
349: if (offset != 0) { if (addr != 0) abort (); addr = offset; } \
350: if ((reg1 && (GET_CODE (reg1) == SIGN_EXTEND \
351: || GET_CODE (reg1) == MULT)) \
352: || (reg2 != 0 && REGNO_OK_FOR_BASE_P (REGNO (reg2)))) \
353: { breg = reg2; ireg = reg1; } \
354: else if (reg1 != 0 && REGNO_OK_FOR_BASE_P (REGNO (reg1))) \
355: { breg = reg1; ireg = reg2; } \
356: if (ireg != 0 && breg == 0 && GET_CODE (addr) == LABEL_REF) \
357: { int scale = 1; \
358: if (GET_CODE (ireg) == MULT) \
359: { scale = INTVAL (XEXP (ireg, 1)); \
360: ireg = XEXP (ireg, 0); } \
361: if (GET_CODE (ireg) == SIGN_EXTEND) \
362: fprintf (FILE, "(L%d.b,pc,%s.w", \
363: CODE_LABEL_NUMBER (XEXP (addr, 0)), \
364: reg_names[REGNO (XEXP (ireg, 0))]); \
365: else \
366: fprintf (FILE, "(L%d.b,pc,%s.l", \
367: CODE_LABEL_NUMBER (XEXP (addr, 0)), \
368: reg_names[REGNO (ireg)]); \
369: if (scale != 1) fprintf (FILE, "*%d", scale); \
370: putc (')', FILE); \
371: break; } \
372: if (breg != 0 && ireg == 0 && GET_CODE (addr) == LABEL_REF) \
373: { fprintf (FILE, "(L%d.b,pc,%s.l", \
374: CODE_LABEL_NUMBER (XEXP (addr, 0)), \
375: reg_names[REGNO (breg)]); \
376: putc (')', FILE); \
377: break; } \
378: if (ireg != 0 || breg != 0) \
379: { int scale = 1; \
380: if (breg == 0) \
381: abort (); \
382: if (addr && GET_CODE (addr) == LABEL_REF) abort (); \
383: fprintf (FILE, "("); \
384: if (addr != 0) { \
385: output_addr_const (FILE, addr); \
386: putc (',', FILE); } \
387: fprintf (FILE, "%s", reg_names[REGNO (breg)]); \
388: if (ireg != 0) \
389: putc (',', FILE); \
390: if (ireg != 0 && GET_CODE (ireg) == MULT) \
391: { scale = INTVAL (XEXP (ireg, 1)); \
392: ireg = XEXP (ireg, 0); } \
393: if (ireg != 0 && GET_CODE (ireg) == SIGN_EXTEND) \
394: fprintf (FILE, "%s.w", reg_names[REGNO (XEXP (ireg, 0))]); \
395: else if (ireg != 0) \
396: fprintf (FILE, "%s.l", reg_names[REGNO (ireg)]); \
397: if (scale != 1) fprintf (FILE, "*%d", scale); \
398: putc (')', FILE); \
399: break; \
400: } \
401: else if (reg1 != 0 && GET_CODE (addr) == LABEL_REF) \
402: { fprintf (FILE, "(L%d.b,pc,%s.l)", \
403: CODE_LABEL_NUMBER (XEXP (addr, 0)), \
404: reg_names[REGNO (reg1)]); \
405: break; } \
406: default: \
407: if (GET_CODE (addr) == CONST_INT \
408: && INTVAL (addr) < 0x8000 \
409: && INTVAL (addr) >= -0x8000) \
410: fprintf (FILE, "%d.w", INTVAL (addr)); \
411: else \
412: output_addr_const (FILE, addr); \
413: }}
414:
415: #else /* Using GAS, which uses the MIT assembler syntax, like a Sun. */
416:
417: #define FUNCTION_PROFILER(FILE, LABEL_NO) \
418: fprintf (FILE, "\tmovl #LP%d,d0\n\tjsr mcount\n", (LABEL_NO));
419:
420: #endif /* MOTOROLA */
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