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comparison packages/hal/calmrisc16/arch/current/include/calm16-stub.h @ 208:e0c0827131d1 ecos

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Merge from eCos master repository on 2002-05-20-20:11:54-BST
author jlarmour
date Mon, 20 May 2002 22:19:26 +0000
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children d2c90368aeef
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207:74c807ddde34 208:e0c0827131d1
1 #ifndef CYGONCE_HAL_MIPS_STUB_H
2 #define CYGONCE_HAL_MIPS_STUB_H
3 //========================================================================
4 //
5 // mips-stub.h
6 //
7 // CalmRISC16-specific definitions for generic stub
8 //
9 //========================================================================
10 //####ECOSGPLCOPYRIGHTBEGIN####
11 // -------------------------------------------
12 // This file is part of eCos, the Embedded Configurable Operating System.
13 // Copyright (C) 1998, 1999, 2000, 2001, 2002 Red Hat, Inc.
14 //
15 // eCos is free software; you can redistribute it and/or modify it under
16 // the terms of the GNU General Public License as published by the Free
17 // Software Foundation; either version 2 or (at your option) any later version.
18 //
19 // eCos is distributed in the hope that it will be useful, but WITHOUT ANY
20 // WARRANTY; without even the implied warranty of MERCHANTABILITY or
21 // FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
22 // for more details.
23 //
24 // You should have received a copy of the GNU General Public License along
25 // with eCos; if not, write to the Free Software Foundation, Inc.,
26 // 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
27 //
28 // As a special exception, if other files instantiate templates or use macros
29 // or inline functions from this file, or you compile this file and link it
30 // with other works to produce a work based on this file, this file does not
31 // by itself cause the resulting work to be covered by the GNU General Public
32 // License. However the source code for this file must still be made available
33 // in accordance with section (3) of the GNU General Public License.
34 //
35 // This exception does not invalidate any other reasons why a work based on
36 // this file might be covered by the GNU General Public License.
37 //
38 // Alternative licenses for eCos may be arranged by contacting Red Hat, Inc.
39 // at http://sources.redhat.com/ecos/ecos-license
40 // -------------------------------------------
41 //####ECOSGPLCOPYRIGHTEND####
42 //========================================================================
43 //#####DESCRIPTIONBEGIN####
44 //
45 // Author(s): Red Hat, msalter
46 // Contributors: Red Hat, msalter
47 // Date: 2001-02-12
48 // Purpose:
49 // Description: CalmRISC16-specific definitions for generic stub
50 // Usage:
51 //
52 //####DESCRIPTIONEND####
53 //
54 //========================================================================
55
56
57 #include <pkgconf/system.h>
58
59 #include <cyg/hal/hal_io.h>
60
61 #ifdef __cplusplus
62 extern "C" {
63 #endif
64
65 #define TARGET_HAS_HARVARD_MEMORY 1
66 typedef unsigned long target_addr_t;
67 #define TARGET_ADDR_IS_PROGMEM(x) (((unsigned long)(x)) >= 0x400000UL)
68 #define TARGET_ADDR_TO_PTR(x) ((char *) (((unsigned long)(x)) & 0x3fffff))
69
70 #define NUMREGS 39
71
72 typedef unsigned long target_register_t;
73
74 enum regnames {
75 REG_R0, REG_R1, REG_R2, REG_R3, REG_R4, REG_R5, REG_R6, REG_R7,
76 REG_R8, REG_R9, REG_R10, REG_R11, REG_R12, REG_R13, REG_R14, REG_R15,
77 REG_E8, REG_E9, REG_E10, REG_E11, REG_E12, REG_E13, REG_E14, REG_E15,
78 REG_A8, REG_A9, REG_A10, REG_A11, REG_A12, REG_A13, REG_A14, REG_A15,
79 REG_PC, REG_SPC_FIQ, REG_SPC_IRQ,
80 REG_SR, REG_SSR_FIQ, REG_SSR_IRQ, REG_SSR_SWI
81 };
82
83 #define REG_LR REG_A14
84 #define REG_SP REG_A15
85
86 #define PC REG_PC
87 #define SP REG_A15
88
89 #define REGSIZE(X) 4
90 #define REGBYTE(X) ((X)*4)
91
92 typedef enum regnames regnames_t;
93
94 /* Given a trap value TRAP, return the corresponding signal. */
95 extern int __computeSignal (unsigned int trap_number);
96
97 /* Return the SPARC trap number corresponding to the last-taken trap. */
98 extern int __get_trap_number (void);
99
100 /* Return the currently-saved value corresponding to register REG. */
101 extern target_register_t get_register (regnames_t reg);
102
103 /* Store VALUE in the register corresponding to WHICH. */
104 extern void put_register (regnames_t which, target_register_t value);
105
106 /* Set the currently-saved pc register value to PC. This also updates NPC
107 as needed. */
108 #if !defined(SET_PC_PROTOTYPE_EXISTS) && !defined(set_pc)
109 #define SET_PC_PROTOTYPE_EXISTS
110 extern void set_pc (target_register_t pc);
111 #endif
112
113 /* Set things up so that the next user resume will execute one instruction.
114 This may be done by setting breakpoints or setting a single step flag
115 in the saved user registers, for example. */
116 #ifndef __single_step
117 void __single_step (void);
118 #endif
119
120 /* Clear the single-step state. */
121 void __clear_single_step (void);
122
123 extern int __is_bsp_syscall(void);
124
125 extern int hal_syscall_handler(void);
126
127 /* If the breakpoint we hit is in the breakpoint() instruction, return a
128 non-zero value. */
129 #ifndef __is_breakpoint_function
130 extern int __is_breakpoint_function (void);
131 #endif
132
133 /* Skip the current instruction. */
134 extern void __skipinst (void);
135
136 extern void __install_breakpoints (void);
137
138 extern void __clear_breakpoints (void);
139
140 extern void __install_breakpoint_list (void);
141
142 extern void __clear_breakpoint_list (void);
143
144 extern unsigned char __read_prog_uint8(void *addr);
145 extern unsigned short __read_prog_uint16(void *addr);
146 extern unsigned long __read_prog_uint32(void *addr);
147
148 extern void __write_prog_uint8(void *addr, unsigned char val);
149 extern void __write_prog_uint16(void *addr, unsigned short val);
150 extern void __write_prog_uint32(void *addr, unsigned long val);
151
152 #ifdef __cplusplus
153 } /* extern "C" */
154 #endif
155
156 #endif // ifndef CYGONCE_HAL_MIPS_STUB_H