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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) \
130: { if (TARGET_68020 || fsize < 0x8000) \
131: fprintf (FILE, "\tlink fp,#%d\n", -fsize); \
132: else \
133: fprintf (FILE, "\tlink fp,#0\n\tsub.l #%d,sp\n", fsize); } \
134: for (regno = 16; regno < FIRST_PSEUDO_REGISTER; regno++) \
135: if (regs_ever_live[regno] && ! call_used_regs[regno]) \
136: mask |= 1 << (regno - 16); \
137: if (mask != 0) \
138: fprintf (FILE, "\tfmovem.x #0x%x,-(sp)\n", mask & 0xff); \
139: mask = 0; \
140: for (regno = 0; regno < 16; regno++) \
141: if (regs_ever_live[regno] && ! call_used_regs[regno]) \
142: mask |= 1 << (15 - regno); \
143: if (frame_pointer_needed) \
144: mask &= ~ (1 << (15-FRAME_POINTER_REGNUM)); \
145: if (exact_log2 (mask) >= 0) \
146: fprintf (FILE, "\tmove.l %s,-(sp)\n", reg_names[15 - exact_log2 (mask)]); \
147: else if (mask) fprintf (FILE, "\tmovem.l #0x%x,-(sp)\n", mask); }
148:
149: #define FUNCTION_PROFILER(FILE, LABEL_NO) \
150: fprintf (FILE, "\tmove.l #LP%d,d0\n\tjsr mcount\n", (LABEL_NO));
151:
152: #define FUNCTION_EPILOGUE(FILE, SIZE) \
153: { register int regno; \
154: register int mask, fmask; \
155: register int nregs; \
156: int offset, foffset; \
157: extern char call_used_regs[]; \
158: extern int current_function_pops_args; \
159: extern int current_function_args_size; \
160: int fsize = ((SIZE) + 3) & -4; \
161: int big = 0; \
162: nregs = 0; fmask = 0; \
163: for (regno = 16; regno < FIRST_PSEUDO_REGISTER; regno++) \
164: if (regs_ever_live[regno] && ! call_used_regs[regno]) \
165: { nregs++; fmask |= 1 << (23 - regno); } \
166: foffset = nregs * 12; \
167: nregs = 0; mask = 0; \
168: if (frame_pointer_needed) regs_ever_live[FRAME_POINTER_REGNUM] = 0; \
169: for (regno = 0; regno < 16; regno++) \
170: if (regs_ever_live[regno] && ! call_used_regs[regno]) \
171: { nregs++; mask |= 1 << regno; } \
172: offset = foffset + nregs * 4; \
173: if (offset + fsize >= 0x8000 \
174: && frame_pointer_needed \
175: && (mask || fmask)) \
176: { fprintf (FILE, "\tmove.l #%d,a0\n", -fsize); \
177: fsize = 0, big = 1; } \
178: if (exact_log2 (mask) >= 0) { \
179: if (big) \
180: fprintf (FILE, "\tmove.l (-%d,fp,a0.l),%s\n", \
181: offset + fsize, reg_names[exact_log2 (mask)]); \
182: else if (! frame_pointer_needed) \
183: fprintf (FILE, "\tmove.l (sp)+,%s\n", \
184: reg_names[exact_log2 (mask)]); \
185: else \
186: fprintf (FILE, "\tmove.l (-%d,fp),%s\n", \
187: offset + fsize, reg_names[exact_log2 (mask)]); } \
188: else if (mask) { \
189: if (big) \
190: fprintf (FILE, "\tmovem.l (-%d,fp,a0.l),#0x%x\n", \
191: offset + fsize, mask); \
192: else if (! frame_pointer_needed) \
193: fprintf (FILE, "\tmovem.l (sp)+,#0x%x\n", mask); \
194: else \
195: fprintf (FILE, "\tmovem.l (-%d,fp),#0x%x\n", \
196: offset + fsize, mask); } \
197: if (fmask) { \
198: if (big) \
199: fprintf (FILE, "\tfmovem.x (-%d,fp,a0.l),#0x%x\n", \
200: foffset + fsize, fmask); \
201: else if (! frame_pointer_needed) \
202: fprintf (FILE, "\tfmovem.x (sp)+,#0x%x\n", fmask); \
203: else \
204: fprintf (FILE, "\tfmovem.x (-%d,fp),#0x%x\n", \
205: foffset + fsize, fmask); } \
206: if (frame_pointer_needed) \
207: fprintf (FILE, "\tunlk fp\n"); \
208: if (current_function_pops_args && current_function_args_size) \
209: fprintf (FILE, "\trtd #%d\n", current_function_args_size); \
210: else fprintf (FILE, "\trts\n"); }
211:
212: /* Difference from tm-m68k.h is in `fp' instead of `a6'. */
213:
214: #define REGISTER_NAMES \
215: {"d0", "d1", "d2", "d3", "d4", "d5", "d6", "d7", \
216: "a0", "a1", "a2", "a3", "a4", "a5", "fp", "sp", \
217: "fp0", "fp1", "fp2", "fp3", "fp4", "fp5", "fp6", "fp7"}
218:
219: /* This is how to output an insn to push a register on the stack.
220: It need not be very fast code. */
221:
222: #define ASM_OUTPUT_REG_PUSH(FILE,REGNO) \
223: fprintf (FILE, "\tmove.l %s,-(sp)\n", reg_names[REGNO])
224:
225: /* This is how to output an insn to pop a register from the stack.
226: It need not be very fast code. */
227:
228: #define ASM_OUTPUT_REG_POP(FILE,REGNO) \
229: fprintf (FILE, "\tmove.l (sp)+,%s\n", reg_names[REGNO])
230:
231: #define ASM_OUTPUT_DOUBLE(FILE,VALUE) \
232: fprintf (FILE, "\t.double 0d%.20e\n", (VALUE))
233:
234: #define ASM_OUTPUT_SKIP(FILE,SIZE) \
1.1.1.2 ! root 235: fprintf (FILE, "\t.space %u\n", (SIZE))
1.1 root 236:
237: /* Store in OUTPUT a string (made with alloca) containing
238: an assembler-name for a local static variable named NAME.
239: LABELNO is an integer which is different for each call. */
240:
241: #define ASM_FORMAT_PRIVATE_NAME(OUTPUT, NAME, LABELNO) \
242: ( (OUTPUT) = (char *) alloca (strlen ((NAME)) + 13), \
243: sprintf ((OUTPUT), "%s$$$%d", (NAME), (LABELNO)))
244:
245: #define PRINT_OPERAND(FILE, X, CODE) \
246: { if (CODE == '.') fprintf (FILE, "."); \
247: else if (CODE == '#') fprintf (FILE, "#"); \
248: else if (CODE == '-') fprintf (FILE, "-(sp)"); \
249: else if (CODE == '+') fprintf (FILE, "(sp)+"); \
250: else if (CODE == '@') fprintf (FILE, "(sp)"); \
251: else if (CODE == '!') fprintf (FILE, "ccr"); \
252: else if (GET_CODE (X) == REG) \
253: fprintf (FILE, "%s", reg_names[REGNO (X)]); \
254: else if (GET_CODE (X) == MEM) \
255: output_address (XEXP (X, 0)); \
256: else if (GET_CODE (X) == CONST_DOUBLE && GET_MODE (X) == SFmode) \
257: { union { double d; int i[2]; } u; \
258: union { float f; int i; } u1; \
259: u.i[0] = CONST_DOUBLE_LOW (X); u.i[1] = CONST_DOUBLE_HIGH (X); \
260: u1.f = u.d; \
261: if (CODE == 'f') \
262: fprintf (FILE, "#0f%.9e", u1.f); \
263: else \
264: fprintf (FILE, "#0x%x", u1.i); } \
265: else if (GET_CODE (X) == CONST_DOUBLE && GET_MODE (X) != DImode) \
266: { union { double d; int i[2]; } u; \
267: u.i[0] = CONST_DOUBLE_LOW (X); u.i[1] = CONST_DOUBLE_HIGH (X); \
268: fprintf (FILE, "#0d%.20e", u.d); } \
269: else if (CODE == 'b') output_addr_const (FILE, X); \
270: else { putc ('#', FILE); output_addr_const (FILE, X); }}
271:
272: #define PRINT_OPERAND_ADDRESS(FILE, ADDR) \
273: { register rtx reg1, reg2, breg, ireg; \
274: register rtx addr = ADDR; \
275: rtx offset; \
276: switch (GET_CODE (addr)) \
277: { \
278: case REG: \
279: fprintf (FILE, "(%s)", reg_names[REGNO (addr)]); \
280: break; \
281: case PRE_DEC: \
282: fprintf (FILE, "-(%s)", reg_names[REGNO (XEXP (addr, 0))]); \
283: break; \
284: case POST_INC: \
285: fprintf (FILE, "(%s)+", reg_names[REGNO (XEXP (addr, 0))]); \
286: break; \
287: case PLUS: \
288: reg1 = 0; reg2 = 0; \
289: ireg = 0; breg = 0; \
290: offset = 0; \
291: if (CONSTANT_ADDRESS_P (XEXP (addr, 0))) \
292: { \
293: offset = XEXP (addr, 0); \
294: addr = XEXP (addr, 1); \
295: } \
296: else if (CONSTANT_ADDRESS_P (XEXP (addr, 1))) \
297: { \
298: offset = XEXP (addr, 1); \
299: addr = XEXP (addr, 0); \
300: } \
301: if (GET_CODE (addr) != PLUS) ; \
302: else if (GET_CODE (XEXP (addr, 0)) == SIGN_EXTEND) \
303: { \
304: reg1 = XEXP (addr, 0); \
305: addr = XEXP (addr, 1); \
306: } \
307: else if (GET_CODE (XEXP (addr, 1)) == SIGN_EXTEND) \
308: { \
309: reg1 = XEXP (addr, 1); \
310: addr = XEXP (addr, 0); \
311: } \
312: else if (GET_CODE (XEXP (addr, 0)) == MULT) \
313: { \
314: reg1 = XEXP (addr, 0); \
315: addr = XEXP (addr, 1); \
316: } \
317: else if (GET_CODE (XEXP (addr, 1)) == MULT) \
318: { \
319: reg1 = XEXP (addr, 1); \
320: addr = XEXP (addr, 0); \
321: } \
322: else if (GET_CODE (XEXP (addr, 0)) == REG) \
323: { \
324: reg1 = XEXP (addr, 0); \
325: addr = XEXP (addr, 1); \
326: } \
327: else if (GET_CODE (XEXP (addr, 1)) == REG) \
328: { \
329: reg1 = XEXP (addr, 1); \
330: addr = XEXP (addr, 0); \
331: } \
332: if (GET_CODE (addr) == REG || GET_CODE (addr) == MULT \
333: || GET_CODE (addr) == SIGN_EXTEND) \
334: { if (reg1 == 0) reg1 = addr; else reg2 = addr; addr = 0; } \
335: if (offset != 0) { if (addr != 0) abort (); addr = offset; } \
336: if ((reg1 && (GET_CODE (reg1) == SIGN_EXTEND \
337: || GET_CODE (reg1) == MULT)) \
338: || (reg2 != 0 && REGNO_OK_FOR_BASE_P (REGNO (reg2)))) \
339: { breg = reg2; ireg = reg1; } \
340: else if (reg1 != 0 && REGNO_OK_FOR_BASE_P (REGNO (reg1))) \
341: { breg = reg1; ireg = reg2; } \
342: if (ireg != 0 && breg == 0 && GET_CODE (addr) == LABEL_REF) \
343: { int scale = 1; \
344: if (GET_CODE (ireg) == MULT) \
345: { scale = INTVAL (XEXP (ireg, 1)); \
346: ireg = XEXP (ireg, 0); } \
347: if (GET_CODE (ireg) == SIGN_EXTEND) \
348: fprintf (FILE, "(L%d.b,pc,%s.w", \
349: CODE_LABEL_NUMBER (XEXP (addr, 0)), \
350: reg_names[REGNO (XEXP (ireg, 0))]); \
351: else \
352: fprintf (FILE, "(L%d.b,pc,%s.l", \
353: CODE_LABEL_NUMBER (XEXP (addr, 0)), \
354: reg_names[REGNO (ireg)]); \
355: if (scale != 1) fprintf (FILE, "*%d", scale); \
356: putc (')', FILE); \
357: break; } \
358: if (breg != 0 && ireg == 0 && GET_CODE (addr) == LABEL_REF) \
359: { fprintf (FILE, "(L%d.b,pc,%s.l", \
360: CODE_LABEL_NUMBER (XEXP (addr, 0)), \
361: reg_names[REGNO (breg)]); \
362: putc (')', FILE); \
363: break; } \
364: if (ireg != 0 || breg != 0) \
365: { int scale = 1; \
366: if (breg == 0) \
367: abort (); \
368: if (addr && GET_CODE (addr) == LABEL_REF) abort (); \
369: fprintf (FILE, "("); \
370: if (addr != 0) { \
371: output_addr_const (FILE, addr); \
372: putc (',', FILE); } \
373: fprintf (FILE, "%s", reg_names[REGNO (breg)]); \
374: if (ireg != 0) \
375: putc (',', FILE); \
376: if (ireg != 0 && GET_CODE (ireg) == MULT) \
377: { scale = INTVAL (XEXP (ireg, 1)); \
378: ireg = XEXP (ireg, 0); } \
379: if (ireg != 0 && GET_CODE (ireg) == SIGN_EXTEND) \
380: fprintf (FILE, "%s.w", reg_names[REGNO (XEXP (ireg, 0))]); \
381: else if (ireg != 0) \
382: fprintf (FILE, "%s.l", reg_names[REGNO (ireg)]); \
383: if (scale != 1) fprintf (FILE, "*%d", scale); \
384: putc (')', FILE); \
385: break; \
386: } \
387: else if (reg1 != 0 && GET_CODE (addr) == LABEL_REF) \
388: { fprintf (FILE, "(L%d.b,pc,%s:l)", \
389: CODE_LABEL_NUMBER (XEXP (addr, 0)), \
390: reg_names[REGNO (reg1)]); \
391: break; } \
392: default: \
393: if (GET_CODE (addr) == CONST_INT \
394: && INTVAL (addr) < 0x8000 \
395: && INTVAL (addr) >= -0x8000) \
396: fprintf (FILE, "%d.w", INTVAL (addr)); \
397: else \
398: output_addr_const (FILE, addr); \
399: }}
400:
401: #else /* Using GAS, which uses the MIT assembler syntax, like a Sun. */
402:
403: #define FUNCTION_PROFILER(FILE, LABEL_NO) \
404: fprintf (FILE, "\tmovl #LP%d,d0\n\tjsr mcount\n", (LABEL_NO));
405:
406: #endif /* MOTOROLA */
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