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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 1, 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 tm-m68k.h. */
22: #define MOTOROLA
23: #define SONY_ASM
24: #endif
25:
26: #include "tm-m68k.h"
27:
28: /* See tm-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: #ifdef news700
42: #define CPP_PREDEFINES "-Dunix -Dbsd43 -Dsony -Dsony_news -Dmc68000 -Dmc68020 -Dnews700"
43: #endif
44: #ifdef news800
45: #define CPP_PREDEFINES "-Dunix -Dbsd43 -Dsony -Dsony_news -Dmc68000 -Dmc68020 -Dnews800"
46: #endif
47: #ifdef news900
48: #define CPP_PREDEFINES "-Dunix -Dbsd43 -Dsony -Dsony_news -Dmc68000 -Dmc68020 -Dnews900"
49: #endif
50: #ifdef news1500
51: #define CPP_PREDEFINES "-Dunix -Dbsd43 -Dsony -Dsony_news -Dmc68000 -Dmc68020 -Dmc68030 -Dnews1500"
52: #endif
53: #ifdef news1700
54: #define CPP_PREDEFINES "-Dunix -Dbsd43 -Dsony -Dsony_news -Dmc68000 -Dmc68020 -Dmc68030 -Dnews1700"
55: #endif
56: #ifdef news1800
57: #define CPP_PREDEFINES "-Dunix -Dbsd43 -Dsony -Dsony_news -Dmc68000 -Dmc68020 -Dmc68030 -Dnews1800"
58: #endif
59: #ifdef news1900
60: #define CPP_PREDEFINES "-Dunix -Dbsd43 -Dsony -Dsony_news -Dmc68000 -Dmc68020 -Dmc68030 -Dnews1900"
61: #endif
62:
63: /* This is BSD, so it wants DBX format. */
64:
65: #define DBX_DEBUGGING_INFO
66:
67: /* Override parts of tm-m68k.h to fit Sony's assembler syntax. */
68:
69: #undef POINTER_BOUNDARY
70: #undef BIGGEST_ALIGNMENT
71: #undef CALL_USED_REGISTERS
72: #undef FUNCTION_VALUE
73: #undef LIBCALL_VALUE
74: #undef FUNCTION_PROFILER
75:
76: #ifdef MOTOROLA
77: #undef FUNCTION_PROLOGUE
78: #undef FUNCTION_EPILOGUE
79: #undef REGISTER_NAMES
80: #undef ASM_OUTPUT_REG_PUSH
81: #undef ASM_OUTPUT_REG_POP
82: #undef ASM_OUTPUT_DOUBLE
83: #undef ASM_OUTPUT_SKIP
84: #undef ASM_FORMAT_PRIVATE_NAME
85: #undef PRINT_OPERAND
86: #undef PRINT_OPERAND_ADDRESS
87: #endif
88:
89: #undef ASM_OUTPUT_ALIGN
90:
91: /* Allocation boundary (in *bits*) for storing pointers in memory. */
92: #define POINTER_BOUNDARY 32
93:
94: /* There is no point aligning anything to a rounder boundary than this. */
95: #define BIGGEST_ALIGNMENT 32
96:
97: /* A bitfield declared as `int' forces `int' alignment for the struct. */
1.1.1.2 root 98: #define PCC_BITFIELD_TYPE_MATTERS 1
1.1 root 99:
100: /* NEWS makes d2, d3, fp2 and fp3 unsaved registers, unlike the Sun system. */
101:
102: #define CALL_USED_REGISTERS \
103: {1, 1, 1, 1, 0, 0, 0, 0, \
104: 1, 1, 0, 0, 0, 0, 0, 1, \
105: 1, 1, 1, 1, 0, 0, 0, 0}
106:
107: /* NEWS returns floats and doubles in fp0, not d0/d1. */
108:
109: #define FUNCTION_VALUE(VALTYPE,FUNC) LIBCALL_VALUE (TYPE_MODE (VALTYPE))
110:
111: #define LIBCALL_VALUE(MODE) \
112: gen_rtx (REG, (MODE), ((TARGET_68881 && ((MODE) == SFmode || (MODE) == DFmode)) ? 16 : 0))
113:
114: #define ASM_OUTPUT_ALIGN(FILE,LOG) \
115: fprintf (FILE, "\t.align %d\n", (LOG))
116:
117: #ifdef MOTOROLA
118:
119: /* Don't try to define `gcc_compiled.' since the assembler does not
120: accept symbols with periods. This is no real loss since GDB only
121: really needs it for parms passed in registers. */
122: #define ASM_IDENTIFY_GCC(FILE)
123:
124: #define FUNCTION_PROLOGUE(FILE, SIZE) \
125: { register int regno; \
126: register int mask = 0; \
127: extern char call_used_regs[]; \
128: int fsize = ((SIZE) + 3) & -4; \
129: if (frame_pointer_needed) \
1.1.1.3 ! root 130: { if (fsize < 0x8000) \
1.1 root 131: fprintf (FILE, "\tlink fp,#%d\n", -fsize); \
1.1.1.3 ! root 132: else if (TARGET_68020) \
! 133: fprintf (FILE, "\tlink.l fp,#%d\n", -fsize); \
1.1 root 134: else \
135: fprintf (FILE, "\tlink fp,#0\n\tsub.l #%d,sp\n", fsize); } \
136: for (regno = 16; regno < FIRST_PSEUDO_REGISTER; regno++) \
137: if (regs_ever_live[regno] && ! call_used_regs[regno]) \
138: mask |= 1 << (regno - 16); \
139: if (mask != 0) \
140: fprintf (FILE, "\tfmovem.x #0x%x,-(sp)\n", mask & 0xff); \
141: mask = 0; \
142: for (regno = 0; regno < 16; regno++) \
143: if (regs_ever_live[regno] && ! call_used_regs[regno]) \
144: mask |= 1 << (15 - regno); \
145: if (frame_pointer_needed) \
146: mask &= ~ (1 << (15-FRAME_POINTER_REGNUM)); \
147: if (exact_log2 (mask) >= 0) \
148: fprintf (FILE, "\tmove.l %s,-(sp)\n", reg_names[15 - exact_log2 (mask)]); \
149: else if (mask) fprintf (FILE, "\tmovem.l #0x%x,-(sp)\n", mask); }
150:
151: #define FUNCTION_PROFILER(FILE, LABEL_NO) \
152: fprintf (FILE, "\tmove.l #LP%d,d0\n\tjsr mcount\n", (LABEL_NO));
153:
154: #define FUNCTION_EPILOGUE(FILE, SIZE) \
155: { register int regno; \
156: register int mask, fmask; \
157: register int nregs; \
158: int offset, foffset; \
159: extern char call_used_regs[]; \
160: extern int current_function_pops_args; \
161: extern int current_function_args_size; \
162: int fsize = ((SIZE) + 3) & -4; \
163: int big = 0; \
164: nregs = 0; fmask = 0; \
165: for (regno = 16; regno < FIRST_PSEUDO_REGISTER; regno++) \
166: if (regs_ever_live[regno] && ! call_used_regs[regno]) \
167: { nregs++; fmask |= 1 << (23 - regno); } \
168: foffset = nregs * 12; \
169: nregs = 0; mask = 0; \
170: if (frame_pointer_needed) regs_ever_live[FRAME_POINTER_REGNUM] = 0; \
171: for (regno = 0; regno < 16; regno++) \
172: if (regs_ever_live[regno] && ! call_used_regs[regno]) \
173: { nregs++; mask |= 1 << regno; } \
174: offset = foffset + nregs * 4; \
175: if (offset + fsize >= 0x8000 \
176: && frame_pointer_needed \
177: && (mask || fmask)) \
178: { fprintf (FILE, "\tmove.l #%d,a0\n", -fsize); \
179: fsize = 0, big = 1; } \
180: if (exact_log2 (mask) >= 0) { \
181: if (big) \
182: fprintf (FILE, "\tmove.l (-%d,fp,a0.l),%s\n", \
183: offset + fsize, reg_names[exact_log2 (mask)]); \
184: else if (! frame_pointer_needed) \
185: fprintf (FILE, "\tmove.l (sp)+,%s\n", \
186: reg_names[exact_log2 (mask)]); \
187: else \
188: fprintf (FILE, "\tmove.l (-%d,fp),%s\n", \
189: offset + fsize, reg_names[exact_log2 (mask)]); } \
190: else if (mask) { \
191: if (big) \
192: fprintf (FILE, "\tmovem.l (-%d,fp,a0.l),#0x%x\n", \
193: offset + fsize, mask); \
194: else if (! frame_pointer_needed) \
195: fprintf (FILE, "\tmovem.l (sp)+,#0x%x\n", mask); \
196: else \
197: fprintf (FILE, "\tmovem.l (-%d,fp),#0x%x\n", \
198: offset + fsize, mask); } \
199: if (fmask) { \
200: if (big) \
201: fprintf (FILE, "\tfmovem.x (-%d,fp,a0.l),#0x%x\n", \
202: foffset + fsize, fmask); \
203: else if (! frame_pointer_needed) \
204: fprintf (FILE, "\tfmovem.x (sp)+,#0x%x\n", fmask); \
205: else \
206: fprintf (FILE, "\tfmovem.x (-%d,fp),#0x%x\n", \
207: foffset + fsize, fmask); } \
208: if (frame_pointer_needed) \
209: fprintf (FILE, "\tunlk fp\n"); \
210: if (current_function_pops_args && current_function_args_size) \
211: fprintf (FILE, "\trtd #%d\n", current_function_args_size); \
212: else fprintf (FILE, "\trts\n"); }
213:
214: /* Difference from tm-m68k.h is in `fp' instead of `a6'. */
215:
216: #define REGISTER_NAMES \
217: {"d0", "d1", "d2", "d3", "d4", "d5", "d6", "d7", \
218: "a0", "a1", "a2", "a3", "a4", "a5", "fp", "sp", \
219: "fp0", "fp1", "fp2", "fp3", "fp4", "fp5", "fp6", "fp7"}
220:
221: /* This is how to output an insn to push a register on the stack.
222: It need not be very fast code. */
223:
224: #define ASM_OUTPUT_REG_PUSH(FILE,REGNO) \
225: fprintf (FILE, "\tmove.l %s,-(sp)\n", reg_names[REGNO])
226:
227: /* This is how to output an insn to pop a register from the stack.
228: It need not be very fast code. */
229:
230: #define ASM_OUTPUT_REG_POP(FILE,REGNO) \
231: fprintf (FILE, "\tmove.l (sp)+,%s\n", reg_names[REGNO])
232:
233: #define ASM_OUTPUT_DOUBLE(FILE,VALUE) \
234: fprintf (FILE, "\t.double 0d%.20e\n", (VALUE))
235:
236: #define ASM_OUTPUT_SKIP(FILE,SIZE) \
1.1.1.2 root 237: fprintf (FILE, "\t.space %u\n", (SIZE))
1.1 root 238:
239: /* Store in OUTPUT a string (made with alloca) containing
240: an assembler-name for a local static variable named NAME.
241: LABELNO is an integer which is different for each call. */
242:
243: #define ASM_FORMAT_PRIVATE_NAME(OUTPUT, NAME, LABELNO) \
244: ( (OUTPUT) = (char *) alloca (strlen ((NAME)) + 13), \
245: sprintf ((OUTPUT), "%s$$$%d", (NAME), (LABELNO)))
246:
247: #define PRINT_OPERAND(FILE, X, CODE) \
248: { if (CODE == '.') fprintf (FILE, "."); \
249: else if (CODE == '#') fprintf (FILE, "#"); \
250: else if (CODE == '-') fprintf (FILE, "-(sp)"); \
251: else if (CODE == '+') fprintf (FILE, "(sp)+"); \
252: else if (CODE == '@') fprintf (FILE, "(sp)"); \
253: else if (CODE == '!') fprintf (FILE, "ccr"); \
254: else if (GET_CODE (X) == REG) \
255: fprintf (FILE, "%s", reg_names[REGNO (X)]); \
256: else if (GET_CODE (X) == MEM) \
257: output_address (XEXP (X, 0)); \
258: else if (GET_CODE (X) == CONST_DOUBLE && GET_MODE (X) == SFmode) \
259: { union { double d; int i[2]; } u; \
260: union { float f; int i; } u1; \
261: u.i[0] = CONST_DOUBLE_LOW (X); u.i[1] = CONST_DOUBLE_HIGH (X); \
262: u1.f = u.d; \
263: if (CODE == 'f') \
264: fprintf (FILE, "#0f%.9e", u1.f); \
265: else \
266: fprintf (FILE, "#0x%x", u1.i); } \
267: else if (GET_CODE (X) == CONST_DOUBLE && GET_MODE (X) != DImode) \
268: { union { double d; int i[2]; } u; \
269: u.i[0] = CONST_DOUBLE_LOW (X); u.i[1] = CONST_DOUBLE_HIGH (X); \
270: fprintf (FILE, "#0d%.20e", u.d); } \
271: else if (CODE == 'b') output_addr_const (FILE, X); \
272: else { putc ('#', FILE); output_addr_const (FILE, X); }}
273:
274: #define PRINT_OPERAND_ADDRESS(FILE, ADDR) \
275: { register rtx reg1, reg2, breg, ireg; \
276: register rtx addr = ADDR; \
277: rtx offset; \
278: switch (GET_CODE (addr)) \
279: { \
280: case REG: \
281: fprintf (FILE, "(%s)", reg_names[REGNO (addr)]); \
282: break; \
283: case PRE_DEC: \
284: fprintf (FILE, "-(%s)", reg_names[REGNO (XEXP (addr, 0))]); \
285: break; \
286: case POST_INC: \
287: fprintf (FILE, "(%s)+", reg_names[REGNO (XEXP (addr, 0))]); \
288: break; \
289: case PLUS: \
290: reg1 = 0; reg2 = 0; \
291: ireg = 0; breg = 0; \
292: offset = 0; \
293: if (CONSTANT_ADDRESS_P (XEXP (addr, 0))) \
294: { \
295: offset = XEXP (addr, 0); \
296: addr = XEXP (addr, 1); \
297: } \
298: else if (CONSTANT_ADDRESS_P (XEXP (addr, 1))) \
299: { \
300: offset = XEXP (addr, 1); \
301: addr = XEXP (addr, 0); \
302: } \
303: if (GET_CODE (addr) != PLUS) ; \
304: else if (GET_CODE (XEXP (addr, 0)) == SIGN_EXTEND) \
305: { \
306: reg1 = XEXP (addr, 0); \
307: addr = XEXP (addr, 1); \
308: } \
309: else if (GET_CODE (XEXP (addr, 1)) == SIGN_EXTEND) \
310: { \
311: reg1 = XEXP (addr, 1); \
312: addr = XEXP (addr, 0); \
313: } \
314: else if (GET_CODE (XEXP (addr, 0)) == MULT) \
315: { \
316: reg1 = XEXP (addr, 0); \
317: addr = XEXP (addr, 1); \
318: } \
319: else if (GET_CODE (XEXP (addr, 1)) == MULT) \
320: { \
321: reg1 = XEXP (addr, 1); \
322: addr = XEXP (addr, 0); \
323: } \
324: else if (GET_CODE (XEXP (addr, 0)) == REG) \
325: { \
326: reg1 = XEXP (addr, 0); \
327: addr = XEXP (addr, 1); \
328: } \
329: else if (GET_CODE (XEXP (addr, 1)) == REG) \
330: { \
331: reg1 = XEXP (addr, 1); \
332: addr = XEXP (addr, 0); \
333: } \
334: if (GET_CODE (addr) == REG || GET_CODE (addr) == MULT \
335: || GET_CODE (addr) == SIGN_EXTEND) \
336: { if (reg1 == 0) reg1 = addr; else reg2 = addr; addr = 0; } \
337: if (offset != 0) { if (addr != 0) abort (); addr = offset; } \
338: if ((reg1 && (GET_CODE (reg1) == SIGN_EXTEND \
339: || GET_CODE (reg1) == MULT)) \
340: || (reg2 != 0 && REGNO_OK_FOR_BASE_P (REGNO (reg2)))) \
341: { breg = reg2; ireg = reg1; } \
342: else if (reg1 != 0 && REGNO_OK_FOR_BASE_P (REGNO (reg1))) \
343: { breg = reg1; ireg = reg2; } \
344: if (ireg != 0 && breg == 0 && GET_CODE (addr) == LABEL_REF) \
345: { int scale = 1; \
346: if (GET_CODE (ireg) == MULT) \
347: { scale = INTVAL (XEXP (ireg, 1)); \
348: ireg = XEXP (ireg, 0); } \
349: if (GET_CODE (ireg) == SIGN_EXTEND) \
350: fprintf (FILE, "(L%d.b,pc,%s.w", \
351: CODE_LABEL_NUMBER (XEXP (addr, 0)), \
352: reg_names[REGNO (XEXP (ireg, 0))]); \
353: else \
354: fprintf (FILE, "(L%d.b,pc,%s.l", \
355: CODE_LABEL_NUMBER (XEXP (addr, 0)), \
356: reg_names[REGNO (ireg)]); \
357: if (scale != 1) fprintf (FILE, "*%d", scale); \
358: putc (')', FILE); \
359: break; } \
360: if (breg != 0 && ireg == 0 && GET_CODE (addr) == LABEL_REF) \
361: { fprintf (FILE, "(L%d.b,pc,%s.l", \
362: CODE_LABEL_NUMBER (XEXP (addr, 0)), \
363: reg_names[REGNO (breg)]); \
364: putc (')', FILE); \
365: break; } \
366: if (ireg != 0 || breg != 0) \
367: { int scale = 1; \
368: if (breg == 0) \
369: abort (); \
370: if (addr && GET_CODE (addr) == LABEL_REF) abort (); \
371: fprintf (FILE, "("); \
372: if (addr != 0) { \
373: output_addr_const (FILE, addr); \
374: putc (',', FILE); } \
375: fprintf (FILE, "%s", reg_names[REGNO (breg)]); \
376: if (ireg != 0) \
377: putc (',', FILE); \
378: if (ireg != 0 && GET_CODE (ireg) == MULT) \
379: { scale = INTVAL (XEXP (ireg, 1)); \
380: ireg = XEXP (ireg, 0); } \
381: if (ireg != 0 && GET_CODE (ireg) == SIGN_EXTEND) \
382: fprintf (FILE, "%s.w", reg_names[REGNO (XEXP (ireg, 0))]); \
383: else if (ireg != 0) \
384: fprintf (FILE, "%s.l", reg_names[REGNO (ireg)]); \
385: if (scale != 1) fprintf (FILE, "*%d", scale); \
386: putc (')', FILE); \
387: break; \
388: } \
389: else if (reg1 != 0 && GET_CODE (addr) == LABEL_REF) \
1.1.1.3 ! root 390: { fprintf (FILE, "(L%d.b,pc,%s.l)", \
1.1 root 391: CODE_LABEL_NUMBER (XEXP (addr, 0)), \
392: reg_names[REGNO (reg1)]); \
393: break; } \
394: default: \
395: if (GET_CODE (addr) == CONST_INT \
396: && INTVAL (addr) < 0x8000 \
397: && INTVAL (addr) >= -0x8000) \
398: fprintf (FILE, "%d.w", INTVAL (addr)); \
399: else \
400: output_addr_const (FILE, addr); \
401: }}
402:
403: #else /* Using GAS, which uses the MIT assembler syntax, like a Sun. */
404:
405: #define FUNCTION_PROFILER(FILE, LABEL_NO) \
406: fprintf (FILE, "\tmovl #LP%d,d0\n\tjsr mcount\n", (LABEL_NO));
407:
408: #endif /* MOTOROLA */
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