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1.1 root 1: /* Definitions of target machine for GNU compiler. ENCORE NS32000 version.
2: Copyright (C) 1988 Free Software Foundation, Inc.
3: Adapted by Robert Brown ([email protected]) from the Sequent
4: version by Michael Tiemann ([email protected]).
5:
6: This file is part of GNU CC.
7:
8: GNU CC is free software; you can redistribute it and/or modify
9: it under the terms of the GNU General Public License as published by
10: the Free Software Foundation; either version 2, or (at your option)
11: any later version.
12:
13: GNU CC is distributed in the hope that it will be useful,
14: but WITHOUT ANY WARRANTY; without even the implied warranty of
15: MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16: GNU General Public License for more details.
17:
18: You should have received a copy of the GNU General Public License
19: along with GNU CC; see the file COPYING. If not, write to
20: the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */
21:
22:
1.1.1.2 ! root 23: #define EXTERNAL_PREFIX '?'
! 24: #define IMMEDIATE_PREFIX '$'
1.1 root 25:
26: #include "ns32k.h"
27:
28: #define SDB_DEBUGGING_INFO
29: #undef DBX_REGISTER_NUMBER
30: #define DBX_REGISTER_NUMBER(REGNO) (REGNO)
31:
32: /* Cause long-jump assembler to be used,
33: since otherwise some files fail to be assembled right. */
34: #define ASM_SPEC "-j"
35:
36: #undef ASM_FILE_START
37: #undef ASM_GENERATE_INTERNAL_LABEL
38: #undef ASM_OUTPUT_ADDR_DIFF_ELT
39: #undef ASM_OUTPUT_ALIGN
40: #undef ASM_OUTPUT_ASCII
41: #undef ASM_OUTPUT_DOUBLE
42: #undef ASM_OUTPUT_INT
43: #undef ASM_OUTPUT_INTERNAL_LABEL
44: #undef ASM_OUTPUT_LOCAL
45: #undef CPP_PREDEFINES
46: #undef FUNCTION_BOUNDARY
47: #undef PRINT_OPERAND
48: #undef PRINT_OPERAND_ADDRESS
49: #undef TARGET_VERSION
50: #undef FUNCTION_PROFILER
51: #undef ASM_OUTPUT_LABELREF_AS_INT
52:
1.1.1.2 ! root 53: #define TARGET_DEFAULT 9 /* 32332 with 32081. */
1.1 root 54: #define TARGET_VERSION fprintf (stderr, " (32000, Encore syntax)");
55: /* Note Encore does not standardly do -Dencore. */
56: /* budd: should have a -ns32332 (or -apc) switch! but no harm for now */
57: #define CPP_PREDEFINES "-Dns32000 -Dn16 -Dns16000 -Dns32332 -Dunix"
58:
59: /* Ignore certain cpp directives used in header files on sysV. */
60: #define SCCS_DIRECTIVE
61:
62: /* Output #ident as a .ident. */
63: #define ASM_OUTPUT_IDENT(FILE, NAME) fprintf (FILE, "\t.ident \"%s\"\n", NAME);
64:
65: /* The .file command should always begin the output. */
66: #define ASM_FILE_START(FILE) \
67: output_file_directive ((FILE), main_input_filename)
68:
69: #define FUNCTION_BOUNDARY 128 /* speed optimization */
70:
71: /*
72: * The Encore assembler uses ".align 2" to align on 2-byte boundaries.
73: */
74:
75: #define ASM_OUTPUT_ALIGN(FILE,LOG) \
76: fprintf (FILE, "\t.align %d\n", 1 << (LOG))
77:
78: /*
79: * Internal labels are prefixed with a period.
80: */
81:
82: #define ASM_GENERATE_INTERNAL_LABEL(LABEL,PREFIX,NUM) \
83: sprintf (LABEL, "*.%s%d", PREFIX, NUM)
84: #define ASM_OUTPUT_INTERNAL_LABEL(FILE,PREFIX,NUM) \
85: fprintf (FILE, ".%s%d:\n", PREFIX, NUM)
86: #define ASM_OUTPUT_ADDR_DIFF_ELT(FILE, VALUE, REL) \
87: fprintf (FILE, "\t.word .L%d-.LI%d\n", VALUE, REL)
88:
89: /*
90: * Different syntax for integer constants, double constants, and
91: * uninitialized locals.
92: */
93:
94: #define ASM_OUTPUT_INT(FILE,VALUE) \
95: ( fprintf (FILE, "\t.double "), \
96: output_addr_const (FILE, (VALUE)), \
97: fprintf (FILE, "\n"))
98:
99: #define ASM_OUTPUT_LABELREF_AS_INT(STREAM, NAME) \
100: do { \
101: fprintf (STREAM, "\t.double\t"); \
102: ASM_OUTPUT_LABELREF (STREAM, NAME); \
103: fprintf (STREAM, "\n"); \
104: } while (0)
105:
106:
107: #define ASM_OUTPUT_DOUBLE(FILE,VALUE) \
108: fprintf (FILE, "\t.long 0f%.20e\n", (VALUE))
109:
110: #define ASM_OUTPUT_LOCAL(FILE, NAME, SIZE, ROUNDED) \
111: ( fputs ("\t.bss ", (FILE)), \
112: assemble_name ((FILE), (NAME)), \
113: fprintf ((FILE), ",%u,%u\n", (SIZE), (ROUNDED)))
114:
115: /*
116: * Encore assembler can't handle huge string constants like the one in
117: * gcc.c. If the default routine in varasm.c were more conservative, this
118: * code could be eliminated. It starts a new .ascii directive every 40
119: * characters.
120: */
121:
122: #define ASM_OUTPUT_ASCII(file, p, size) \
123: { \
124: for (i = 0; i < (size); i++) \
125: { \
126: register int c = (p)[i]; \
127: if ((i / 40) * 40 == i) \
128: if (i == 0) \
129: fprintf ((file), "\t.ascii \""); \
130: else \
131: fprintf ((file), "\"\n\t.ascii \""); \
132: if (c == '\"' || c == '\\') \
133: putc ('\\', (file)); \
134: if (c >= ' ' && c < 0177) \
135: putc (c, (file)); \
136: else \
137: { \
138: fprintf ((file), "\\%o", c); \
139: if (i < (size) - 1 \
140: && (p)[i + 1] >= '0' && (p)[i + 1] <= '9')\
141: fprintf ((file), "\"\n\t.ascii \""); \
142: } \
143: } \
144: fprintf ((file), "\"\n"); \
145: }
146:
1.1.1.2 ! root 147: #define NO_ABSOLUTE_PREFIX_IF_SYMBOLIC
! 148:
1.1 root 149: /*
150: * Dollar signs are required before immediate operands, double
151: * floating point constants use $0f syntax, and external addresses
152: * should be prefixed with a question mark to avoid assembler warnings
153: * about undefined symbols.
154: */
155:
156: #define PRINT_OPERAND(FILE, X, CODE) \
157: { if (CODE == '$') putc ('$', FILE); \
158: else if (CODE == '?') fputc ('?', FILE); \
159: else if (GET_CODE (X) == REG) \
160: fprintf (FILE, "%s", reg_names[REGNO (X)]); \
161: else if (GET_CODE (X) == MEM) \
162: { \
163: rtx xfoo; \
164: xfoo = XEXP (X, 0); \
165: switch (GET_CODE (xfoo)) \
166: { \
167: case MEM: \
168: if (GET_CODE (XEXP (xfoo, 0)) == REG) \
169: if (REGNO (XEXP (xfoo, 0)) == STACK_POINTER_REGNUM) \
170: fprintf (FILE, "0(0(sp))"); \
171: else fprintf (FILE, "0(0(%s))", \
172: reg_names[REGNO (XEXP (xfoo, 0))]); \
173: else \
174: { \
175: fprintf (FILE, "0("); \
176: output_address (xfoo); \
177: putc (')', FILE); \
178: } \
179: break; \
180: case REG: \
181: fprintf (FILE, "0(%s)", reg_names[REGNO (xfoo)]); \
182: break; \
183: case PRE_DEC: \
184: case POST_INC: \
185: fprintf (FILE, "tos"); \
186: break; \
187: case CONST_INT: \
188: fprintf (FILE, "@%d", INTVAL (xfoo)); \
189: break; \
190: default: \
191: output_address (xfoo); \
192: break; \
193: } \
194: } \
195: else if (GET_CODE (X) == CONST_DOUBLE && GET_MODE (X) != DImode) \
196: if (GET_MODE (X) == DFmode) \
197: { union { double d; int i[2]; } u; \
198: u.i[0] = CONST_DOUBLE_LOW (X); u.i[1] = CONST_DOUBLE_HIGH (X); \
199: fprintf (FILE, "$0f%.20e", u.d); } \
200: else { union { double d; int i[2]; } u; \
201: u.i[0] = CONST_DOUBLE_LOW (X); u.i[1] = CONST_DOUBLE_HIGH (X); \
202: fprintf (FILE, "$0f%.20e", u.d); } \
203: else if (GET_CODE (X) == CONST) \
204: output_addr_const (FILE, X); \
205: else { putc ('$', FILE); output_addr_const (FILE, X); }}
206:
207: #define PRINT_OPERAND_ADDRESS(FILE, ADDR) print_operand_address(FILE, ADDR)
208:
209: /* Change the way in which data is allocated and initialized on the
210: encore so that both private and shared data are supported. Shared data
211: that is initialized must be contained in the ".shrdata" section
212: of the program. This is accomplished by defining the SHARED_SECTION_ASM_OP
213: macro. Share data that is simply allocated, and not initialized must
214: be prefixed with the ".shrcomm" or ".shrbss" pseudo op, for common or
215: local data respectively. This is accomplished by redefining the
216: ASM_OUTPUT_COMMON and ASM_OUTPUT_LOCAL macros. */
217:
218: /* Assembler pseudo-op for shared data segment. */
219:
220: #define SHARED_SECTION_ASM_OP ".shrdata"
221:
222: /* This says how to output an assembler line
223: to define a shared common symbol. */
224:
225: #define ASM_OUTPUT_SHARED_COMMON(FILE, NAME, SIZE, ROUNDED) \
226: ( fputs (".shrcomm ", (FILE)), \
227: assemble_name ((FILE), (NAME)), \
228: fprintf ((FILE), ",%d\n", (ROUNDED)))
229:
230: /* This says how to output an assembler line
231: to define a shared local symbol. */
232:
233: #define ASM_OUTPUT_SHARED_LOCAL(FILE, NAME, SIZE, ROUNDED) \
234: ( fputs ("\t.shrbss ", (FILE)), \
235: assemble_name ((FILE), (NAME)), \
236: fprintf ((FILE), ",%d,%d\n", (SIZE), (ROUNDED)))
237:
238: #define FUNCTION_PROFILER(FILE, LABELNO) \
239: fprintf (FILE, "\taddr .LP%d,r0\n\tjsr mcount\n", (LABELNO))
1.1.1.2 ! root 240:
! 241: #define ENCORE_ASM
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