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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:
23: #define EXTERNAL_PREFIX '?'
24: #define IMMEDIATE_PREFIX '$'
25:
26: #include "ns32k/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:
53: #define TARGET_DEFAULT 9 /* 32332 with 32081. */
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 -Asystem(unix) -Acpu(ns32k) -Amachine(ns32k)"
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: /* The Encore assembler doesn't seem to accept the usual second argument
79: and warns that .align may not work in the text section if optimization
80: is on. */
81: #undef ASM_OUTPUT_ALIGN_CODE
82: #define ASM_OUTPUT_ALIGN_CODE(FILE)
83:
84: /*
85: * Internal labels are prefixed with a period.
86: */
87:
88: #define ASM_GENERATE_INTERNAL_LABEL(LABEL,PREFIX,NUM) \
89: sprintf (LABEL, "*.%s%d", PREFIX, NUM)
90: #define ASM_OUTPUT_INTERNAL_LABEL(FILE,PREFIX,NUM) \
91: fprintf (FILE, ".%s%d:\n", PREFIX, NUM)
92: #define ASM_OUTPUT_ADDR_DIFF_ELT(FILE, VALUE, REL) \
93: fprintf (FILE, "\t.double .L%d-.LI%d\n", VALUE, REL)
94:
95: /*
96: * Different syntax for integer constants, double constants, and
97: * uninitialized locals.
98: */
99:
100: #define ASM_OUTPUT_INT(FILE,VALUE) \
101: ( fprintf (FILE, "\t.double "), \
102: output_addr_const (FILE, (VALUE)), \
103: fprintf (FILE, "\n"))
104:
105: #define ASM_OUTPUT_LABELREF_AS_INT(STREAM, NAME) \
106: do { \
107: fprintf (STREAM, "\t.double\t"); \
108: ASM_OUTPUT_LABELREF (STREAM, NAME); \
109: fprintf (STREAM, "\n"); \
110: } while (0)
111:
112:
113: #define ASM_OUTPUT_DOUBLE(FILE,VALUE) \
114: fprintf (FILE, "\t.long 0f%.20e\n", (VALUE))
115:
116: #define ASM_OUTPUT_LOCAL(FILE, NAME, SIZE, ROUNDED) \
117: ( fputs ("\t.bss ", (FILE)), \
118: assemble_name ((FILE), (NAME)), \
119: fprintf ((FILE), ",%u,%u\n", (SIZE), (ROUNDED)))
120:
121: /*
122: * Encore assembler can't handle huge string constants like the one in
123: * gcc.c. If the default routine in varasm.c were more conservative, this
124: * code could be eliminated. It starts a new .ascii directive every 40
125: * characters.
126: */
127:
128: #define ASM_OUTPUT_ASCII(file, p, size) \
129: { \
130: int i; \
131: for (i = 0; i < (size); i++) \
132: { \
133: register int c = (p)[i]; \
134: if ((i / 40) * 40 == i) \
135: if (i == 0) \
136: fprintf ((file), "\t.ascii \""); \
137: else \
138: fprintf ((file), "\"\n\t.ascii \""); \
139: if (c == '\"' || c == '\\') \
140: putc ('\\', (file)); \
141: if (c >= ' ' && c < 0177) \
142: putc (c, (file)); \
143: else \
144: { \
145: fprintf ((file), "\\%o", c); \
146: if (i < (size) - 1 \
147: && (p)[i + 1] >= '0' && (p)[i + 1] <= '9')\
148: fprintf ((file), "\"\n\t.ascii \""); \
149: } \
150: } \
151: fprintf ((file), "\"\n"); \
152: }
153:
154: /* Modify syntax of jsr instructions. */
155: #define CALL_MEMREF_IMPLICIT
156:
157: #define NO_ABSOLUTE_PREFIX_IF_SYMBOLIC
158:
159: #define PRINT_OPERAND(FILE, X, CODE) print_operand(FILE, X, CODE)
160:
161: #define PRINT_OPERAND_ADDRESS(FILE, ADDR) print_operand_address(FILE, ADDR)
162:
163: /* Change the way in which data is allocated and initialized on the
164: encore so that both private and shared data are supported. Shared data
165: that is initialized must be contained in the ".shrdata" section
166: of the program. This is accomplished by defining the SHARED_SECTION_ASM_OP
167: macro. Share data that is simply allocated, and not initialized must
168: be prefixed with the ".shrcomm" or ".shrbss" pseudo op, for common or
169: local data respectively. This is accomplished by redefining the
170: ASM_OUTPUT_COMMON and ASM_OUTPUT_LOCAL macros. */
171:
172: /* Assembler pseudo-op for shared data segment. */
173:
174: #define SHARED_SECTION_ASM_OP ".shrdata"
175:
176: /* This says how to output an assembler line
177: to define a shared common symbol. */
178:
179: #define ASM_OUTPUT_SHARED_COMMON(FILE, NAME, SIZE, ROUNDED) \
180: ( fputs (".shrcomm ", (FILE)), \
181: assemble_name ((FILE), (NAME)), \
182: fprintf ((FILE), ",%d\n", (ROUNDED)))
183:
184: /* This says how to output an assembler line
185: to define a shared local symbol. */
186:
187: #define ASM_OUTPUT_SHARED_LOCAL(FILE, NAME, SIZE, ROUNDED) \
188: ( fputs ("\t.shrbss ", (FILE)), \
189: assemble_name ((FILE), (NAME)), \
190: fprintf ((FILE), ",%d,%d\n", (SIZE), (ROUNDED)))
191:
192: #define FUNCTION_PROFILER(FILE, LABELNO) \
193: fprintf (FILE, "\taddr .LP%d,r0\n\tjsr mcount\n", (LABELNO))
194:
195: #define ENCORE_ASM
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