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e2810631 SG |
1 | /* Parameters for execution on an NEC V850 processor. |
2 | Copyright 1996 | |
3 | Free Software Foundation, Inc. | |
4 | ||
5 | This file is part of GDB. | |
6 | ||
7 | This program is free software; you can redistribute it and/or modify | |
8 | it under the terms of the GNU General Public License as published by | |
9 | the Free Software Foundation; either version 2 of the License, or | |
10 | (at your option) any later version. | |
11 | ||
12 | This program is distributed in the hope that it will be useful, | |
13 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
15 | GNU General Public License for more details. | |
16 | ||
17 | You should have received a copy of the GNU General Public License | |
18 | along with this program; if not, write to the Free Software | |
19 | Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ | |
20 | ||
21 | #define TARGET_BYTE_ORDER LITTLE_ENDIAN | |
22 | ||
1a282a7d | 23 | #define NUM_REGS 65 |
e2810631 SG |
24 | |
25 | #define REGISTER_NAMES \ | |
4c681116 | 26 | { "r0", "r1", "r2", "r3", "r4", "r5", "r6", "r7", \ |
e2810631 SG |
27 | "r8", "r9", "r10", "r11", "r12", "r13", "r14", "r15", \ |
28 | "r16", "r17", "r18", "r19", "r20", "r21", "r22", "r23", \ | |
4c681116 | 29 | "r24", "r25", "r26", "r27", "r28", "r29", "r30", "r31", \ |
e2810631 SG |
30 | \ |
31 | "eipc", "eipsw", "fepc", "fepsw", "ecr", "psw", "sr6", "sr7", \ | |
32 | "sr8", "sr9", "sr10", "sr11", "sr12", "sr13", "sr14", "sr15", \ | |
33 | "sr16", "sr17", "sr18", "sr19", "sr20", "sr21", "sr22", "sr23", \ | |
1a282a7d SG |
34 | "sr24", "sr25", "sr26", "sr27", "sr28", "sr29", "sr30", "sr31", \ |
35 | "pc" } | |
e2810631 SG |
36 | |
37 | #define REGISTER_BYTES (NUM_REGS * 4) | |
38 | ||
39 | #define REGISTER_SIZE 4 | |
40 | #define MAX_REGISTER_RAW_SIZE 4 | |
41 | ||
0b019fa1 | 42 | #define R0_REGNUM 0 |
a490f8c1 MM |
43 | #define R1_REGNUM 1 |
44 | #define SAVE1_START_REGNUM 2 | |
45 | #define SAVE1_END_REGNUM 2 | |
e2810631 | 46 | #define SP_REGNUM 3 |
687f4e23 SG |
47 | #define ARG0_REGNUM 6 |
48 | #define ARGLAST_REGNUM 9 | |
e5a2ac8b SG |
49 | #define V0_REGNUM 10 |
50 | #define V1_REGNUM 11 | |
0b019fa1 | 51 | #define R12_REGNUM 12 |
a490f8c1 MM |
52 | #define SAVE2_START_REGNUM 20 |
53 | #define SAVE2_END_REGNUM 29 | |
687f4e23 | 54 | #define FP_REGNUM 29 |
a490f8c1 MM |
55 | #define EP_REGNUM 30 |
56 | #define SAVE3_START_REGNUM 31 | |
57 | #define SAVE3_END_REGNUM 31 | |
e2810631 | 58 | #define RP_REGNUM 31 |
139e2c0f | 59 | #define PS_REGNUM 37 |
1a282a7d | 60 | #define PC_REGNUM 64 |
e2810631 SG |
61 | |
62 | #define REGISTER_VIRTUAL_TYPE(REG) builtin_type_int | |
63 | ||
64 | #define REGISTER_BYTE(REG) ((REG) * 4) | |
65 | #define REGISTER_VIRTUAL_SIZE(REG) 4 | |
66 | #define REGISTER_RAW_SIZE(REG) 4 | |
67 | ||
68 | #define MAX_REGISTER_VIRTUAL_SIZE 4 | |
69 | ||
70 | #define BREAKPOINT {0xff, 0xff} | |
71 | ||
72 | #define FUNCTION_START_OFFSET 0 | |
73 | ||
74 | #define DECR_PC_AFTER_BREAK 0 | |
75 | ||
e2810631 SG |
76 | #define INNER_THAN < |
77 | ||
e2810631 SG |
78 | #define SAVED_PC_AFTER_CALL(fi) read_register (RP_REGNUM) |
79 | ||
e5a2ac8b SG |
80 | #ifdef __STDC__ |
81 | struct frame_info; | |
82 | struct frame_saved_regs; | |
83 | struct type; | |
ac954805 | 84 | struct value; |
e5a2ac8b SG |
85 | #endif |
86 | ||
87 | #define EXTRA_FRAME_INFO struct frame_saved_regs fsr; | |
88 | ||
89 | extern void v850_init_extra_frame_info PARAMS ((struct frame_info *fi)); | |
90 | #define INIT_EXTRA_FRAME_INFO(fromleaf, fi) v850_init_extra_frame_info (fi) | |
91 | #define INIT_FRAME_PC /* Not necessary */ | |
92 | ||
93 | extern void v850_frame_find_saved_regs PARAMS ((struct frame_info *fi, struct frame_saved_regs *regaddr)); | |
94 | #define FRAME_FIND_SAVED_REGS(fi, regaddr) regaddr = fi->fsr | |
e2810631 | 95 | |
e5a2ac8b SG |
96 | extern CORE_ADDR v850_frame_chain PARAMS ((struct frame_info *fi)); |
97 | #define FRAME_CHAIN(fi) v850_frame_chain (fi) | |
dc1b349d | 98 | #define FRAME_CHAIN_VALID(FP, FI) generic_frame_chain_valid (FP, FI) |
e2810631 | 99 | |
e5a2ac8b | 100 | extern CORE_ADDR v850_find_callers_reg PARAMS ((struct frame_info *fi, int regnum)); |
dc1b349d MS |
101 | extern CORE_ADDR v850_frame_saved_pc PARAMS ((struct frame_info *)); |
102 | #define FRAME_SAVED_PC(FI) (v850_frame_saved_pc (FI)) | |
e2810631 | 103 | |
e5a2ac8b SG |
104 | #define EXTRACT_RETURN_VALUE(TYPE, REGBUF, VALBUF) \ |
105 | memcpy (VALBUF, REGBUF + REGISTER_BYTE (V0_REGNUM), TYPE_LENGTH (TYPE)) | |
106 | ||
107 | #define EXTRACT_STRUCT_VALUE_ADDRESS(REGBUF) \ | |
dc1b349d MS |
108 | extract_address (REGBUF + REGISTER_BYTE (V0_REGNUM), \ |
109 | REGISTER_RAW_SIZE (V0_REGNUM)) | |
e5a2ac8b SG |
110 | |
111 | #define STORE_RETURN_VALUE(TYPE, VALBUF) \ | |
112 | write_register_bytes(REGISTER_BYTE (V0_REGNUM), VALBUF, TYPE_LENGTH (TYPE)); | |
113 | ||
114 | extern CORE_ADDR v850_skip_prologue PARAMS ((CORE_ADDR pc)); | |
115 | #define SKIP_PROLOGUE(pc) pc = v850_skip_prologue (pc) | |
116 | ||
117 | #define FRAME_ARGS_SKIP 0 | |
e2810631 SG |
118 | |
119 | #define FRAME_ARGS_ADDRESS(fi) ((fi)->frame) | |
120 | #define FRAME_LOCALS_ADDRESS(fi) ((fi)->frame) | |
121 | #define FRAME_NUM_ARGS(val, fi) ((val) = -1) | |
e2810631 | 122 | |
dc1b349d | 123 | extern void v850_pop_frame PARAMS ((struct frame_info *frame)); |
e5a2ac8b | 124 | #define POP_FRAME v850_pop_frame (get_current_frame ()) |
ac954805 | 125 | |
e47d1a4e | 126 | #define USE_GENERIC_DUMMY_FRAMES |
dc1b349d MS |
127 | #define CALL_DUMMY {0} |
128 | #define CALL_DUMMY_START_OFFSET (0) | |
ac954805 | 129 | #define CALL_DUMMY_BREAKPOINT_OFFSET (0) |
dc1b349d MS |
130 | #define CALL_DUMMY_LOCATION AT_ENTRY_POINT |
131 | #define FIX_CALL_DUMMY(DUMMY, START, FUNADDR, NARGS, ARGS, TYPE, GCCP) | |
132 | #define CALL_DUMMY_ADDRESS() entry_point_address () | |
133 | extern CORE_ADDR v850_push_return_address PARAMS ((CORE_ADDR, CORE_ADDR)); | |
134 | #define PUSH_RETURN_ADDRESS(PC, SP) v850_push_return_address (PC, SP) | |
409f64ae | 135 | |
ac954805 | 136 | |
dc1b349d | 137 | #define PUSH_DUMMY_FRAME generic_push_dummy_frame () |
ac954805 SG |
138 | |
139 | extern CORE_ADDR | |
140 | v850_push_arguments PARAMS ((int nargs, struct value **args, CORE_ADDR sp, | |
141 | unsigned char struct_return, | |
142 | CORE_ADDR struct_addr)); | |
143 | #define PUSH_ARGUMENTS(NARGS, ARGS, SP, STRUCT_RETURN, STRUCT_ADDR) \ | |
144 | (SP) = v850_push_arguments (NARGS, ARGS, SP, STRUCT_RETURN, STRUCT_ADDR) | |
145 | ||
146 | #define STORE_STRUCT_RETURN(STRUCT_ADDR, SP) | |
147 | ||
ac954805 | 148 | |
dc1b349d | 149 | #define PC_IN_CALL_DUMMY(PC, SP, FP) generic_pc_in_call_dummy (PC, SP) |
ac954805 SG |
150 | |
151 | #define USE_STRUCT_CONVENTION(GCC_P, TYPE) \ | |
152 | (TYPE_NFIELDS (TYPE) > 1 || TYPE_LENGTH (TYPE) > 4) | |
139e2c0f | 153 | |
dc1b349d MS |
154 | /* override the default get_saved_register function with |
155 | one that takes account of generic CALL_DUMMY frames */ | |
156 | #define GET_SAVED_REGISTER | |
157 | ||
139e2c0f SG |
158 | /* Define this for Wingdb */ |
159 | ||
160 | #define TARGET_V850 |