Mercurial > flash_v2
annotate packages/hal/sparclite/arch/current/include/hal_arch.h @ 1777:c16341b1bac6 default tip
* Added execute permissions to files missed in conversion from CVS
| author | alexs |
|---|---|
| date | Mon, 12 Oct 2009 02:26:09 +0100 |
| parents | d2c90368aeef |
| children |
| rev | line source |
|---|---|
| 2 | 1 #ifndef CYGONCE_HAL_ARCH_H |
| 2 #define CYGONCE_HAL_ARCH_H | |
| 3 | |
| 4 //========================================================================== | |
| 5 // | |
| 6 // hal_arch.h | |
| 7 // | |
| 8 // Architecture specific abstractions | |
| 9 // | |
| 10 //========================================================================== | |
|
208
e0c0827131d1
Merge from eCos master repository on 2002-05-20-20:11:54-BST
jlarmour
parents:
130
diff
changeset
|
11 //####ECOSGPLCOPYRIGHTBEGIN#### |
|
e0c0827131d1
Merge from eCos master repository on 2002-05-20-20:11:54-BST
jlarmour
parents:
130
diff
changeset
|
12 // ------------------------------------------- |
|
e0c0827131d1
Merge from eCos master repository on 2002-05-20-20:11:54-BST
jlarmour
parents:
130
diff
changeset
|
13 // This file is part of eCos, the Embedded Configurable Operating System. |
|
e0c0827131d1
Merge from eCos master repository on 2002-05-20-20:11:54-BST
jlarmour
parents:
130
diff
changeset
|
14 // Copyright (C) 1998, 1999, 2000, 2001, 2002 Red Hat, Inc. |
|
e0c0827131d1
Merge from eCos master repository on 2002-05-20-20:11:54-BST
jlarmour
parents:
130
diff
changeset
|
15 // |
|
e0c0827131d1
Merge from eCos master repository on 2002-05-20-20:11:54-BST
jlarmour
parents:
130
diff
changeset
|
16 // eCos is free software; you can redistribute it and/or modify it under |
|
e0c0827131d1
Merge from eCos master repository on 2002-05-20-20:11:54-BST
jlarmour
parents:
130
diff
changeset
|
17 // the terms of the GNU General Public License as published by the Free |
|
e0c0827131d1
Merge from eCos master repository on 2002-05-20-20:11:54-BST
jlarmour
parents:
130
diff
changeset
|
18 // Software Foundation; either version 2 or (at your option) any later version. |
|
e0c0827131d1
Merge from eCos master repository on 2002-05-20-20:11:54-BST
jlarmour
parents:
130
diff
changeset
|
19 // |
|
e0c0827131d1
Merge from eCos master repository on 2002-05-20-20:11:54-BST
jlarmour
parents:
130
diff
changeset
|
20 // eCos is distributed in the hope that it will be useful, but WITHOUT ANY |
|
e0c0827131d1
Merge from eCos master repository on 2002-05-20-20:11:54-BST
jlarmour
parents:
130
diff
changeset
|
21 // WARRANTY; without even the implied warranty of MERCHANTABILITY or |
|
e0c0827131d1
Merge from eCos master repository on 2002-05-20-20:11:54-BST
jlarmour
parents:
130
diff
changeset
|
22 // FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
|
e0c0827131d1
Merge from eCos master repository on 2002-05-20-20:11:54-BST
jlarmour
parents:
130
diff
changeset
|
23 // for more details. |
|
e0c0827131d1
Merge from eCos master repository on 2002-05-20-20:11:54-BST
jlarmour
parents:
130
diff
changeset
|
24 // |
|
e0c0827131d1
Merge from eCos master repository on 2002-05-20-20:11:54-BST
jlarmour
parents:
130
diff
changeset
|
25 // You should have received a copy of the GNU General Public License along |
|
e0c0827131d1
Merge from eCos master repository on 2002-05-20-20:11:54-BST
jlarmour
parents:
130
diff
changeset
|
26 // with eCos; if not, write to the Free Software Foundation, Inc., |
|
e0c0827131d1
Merge from eCos master repository on 2002-05-20-20:11:54-BST
jlarmour
parents:
130
diff
changeset
|
27 // 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA. |
|
e0c0827131d1
Merge from eCos master repository on 2002-05-20-20:11:54-BST
jlarmour
parents:
130
diff
changeset
|
28 // |
|
e0c0827131d1
Merge from eCos master repository on 2002-05-20-20:11:54-BST
jlarmour
parents:
130
diff
changeset
|
29 // As a special exception, if other files instantiate templates or use macros |
|
e0c0827131d1
Merge from eCos master repository on 2002-05-20-20:11:54-BST
jlarmour
parents:
130
diff
changeset
|
30 // or inline functions from this file, or you compile this file and link it |
|
e0c0827131d1
Merge from eCos master repository on 2002-05-20-20:11:54-BST
jlarmour
parents:
130
diff
changeset
|
31 // with other works to produce a work based on this file, this file does not |
|
e0c0827131d1
Merge from eCos master repository on 2002-05-20-20:11:54-BST
jlarmour
parents:
130
diff
changeset
|
32 // by itself cause the resulting work to be covered by the GNU General Public |
|
e0c0827131d1
Merge from eCos master repository on 2002-05-20-20:11:54-BST
jlarmour
parents:
130
diff
changeset
|
33 // License. However the source code for this file must still be made available |
|
e0c0827131d1
Merge from eCos master repository on 2002-05-20-20:11:54-BST
jlarmour
parents:
130
diff
changeset
|
34 // in accordance with section (3) of the GNU General Public License. |
|
e0c0827131d1
Merge from eCos master repository on 2002-05-20-20:11:54-BST
jlarmour
parents:
130
diff
changeset
|
35 // |
|
e0c0827131d1
Merge from eCos master repository on 2002-05-20-20:11:54-BST
jlarmour
parents:
130
diff
changeset
|
36 // This exception does not invalidate any other reasons why a work based on |
|
e0c0827131d1
Merge from eCos master repository on 2002-05-20-20:11:54-BST
jlarmour
parents:
130
diff
changeset
|
37 // this file might be covered by the GNU General Public License. |
|
e0c0827131d1
Merge from eCos master repository on 2002-05-20-20:11:54-BST
jlarmour
parents:
130
diff
changeset
|
38 // |
|
e0c0827131d1
Merge from eCos master repository on 2002-05-20-20:11:54-BST
jlarmour
parents:
130
diff
changeset
|
39 // Alternative licenses for eCos may be arranged by contacting Red Hat, Inc. |
|
210
d2c90368aeef
Merge from eCos master repository on 2002-05-23-21:39:14-BST
jlarmour
parents:
208
diff
changeset
|
40 // at http://sources.redhat.com/ecos/ecos-license/ |
|
208
e0c0827131d1
Merge from eCos master repository on 2002-05-20-20:11:54-BST
jlarmour
parents:
130
diff
changeset
|
41 // ------------------------------------------- |
|
e0c0827131d1
Merge from eCos master repository on 2002-05-20-20:11:54-BST
jlarmour
parents:
130
diff
changeset
|
42 //####ECOSGPLCOPYRIGHTEND#### |
| 2 | 43 //========================================================================== |
| 44 //#####DESCRIPTIONBEGIN#### | |
| 45 // | |
| 46 // Author(s): nickg, gthomas, hmt | |
| 47 // Contributors: nickg, gthomas, hmt | |
| 48 // Date: 1999-02-20 | |
| 49 // Purpose: Define architecture abstractions | |
| 50 // Usage: #include <cyg/hal/hal_arch.h> | |
| 51 // | |
| 52 //####DESCRIPTIONEND#### | |
| 53 // | |
| 54 //========================================================================== | |
| 55 | |
| 56 #include <pkgconf/hal.h> | |
| 57 #include <pkgconf/hal_sparclite.h> | |
| 58 | |
| 59 #include <cyg/infra/cyg_type.h> | |
| 60 | |
| 61 #include <cyg/hal/hal_intr.h> // HAL_DISABLE_INTERRUPTS | |
| 62 | |
| 63 //-------------------------------------------------------------------------- | |
| 64 // Processor saved states: | |
|
14
01ce82f3e11a
Merge from eCos master repository on 1999-06-11-17:05:41-BST
jlarmour
parents:
2
diff
changeset
|
65 // |
|
01ce82f3e11a
Merge from eCos master repository on 1999-06-11-17:05:41-BST
jlarmour
parents:
2
diff
changeset
|
66 // All these structures must be doubleword (64 bit) aligned. |
|
01ce82f3e11a
Merge from eCos master repository on 1999-06-11-17:05:41-BST
jlarmour
parents:
2
diff
changeset
|
67 // The code that creates them on the stack will ensure this is so. |
| 2 | 68 |
| 69 #define HAL_THREAD_CONTEXT_GLOBAL_BASE 0 | |
| 70 #define HAL_THREAD_CONTEXT_OUT_BASE 8 | |
| 71 #define HAL_THREAD_CONTEXT_LOCAL_BASE 16 | |
| 72 #define HAL_THREAD_CONTEXT_IN_BASE 24 | |
| 73 | |
| 74 typedef struct | |
| 75 { | |
| 76 // this is the save structure found at *(stack_ptr) always, note that | |
| 77 // i[6] is the frame pointer is the previous stack pointer, and | |
| 78 // o[6] is the stack pointer is the next frame pointer, | |
| 79 // so they form a linked list back up the call stack. | |
| 80 cyg_uint32 l[8]; /* Locals r16-r23 */ | |
| 81 cyg_uint32 i[8]; /* Ins r24-r31 */ | |
| 82 } HAL_SavedWindow; | |
| 83 | |
| 84 typedef struct | |
| 85 { | |
| 86 // Window save at stack pointer | |
| 87 HAL_SavedWindow li; | |
| 88 //16 | |
| 89 // This is the rest of the save state: | |
| 90 // NOTE: g[0] is used for the CWP, for %g0 == 0. Also note that the | |
| 91 // assembler routines must load/store it in the right order. | |
| 92 cyg_uint32 g[8] ; /* Globals r0- r7 */ | |
| 93 cyg_uint32 o[8] ; /* Outs r8-r15 */ | |
| 94 //32 words in size | |
| 95 | |
| 96 // There is no need to save any other state; for example, condition codes, | |
| 97 // the PC and NextPC, and Y, are preserved in local registers in the trap | |
| 98 // handling window and so preserved in the caller stack frame as viewed | |
| 99 // from an ISR. Note that the VSR is jumped to with those locals being set | |
| 100 // up (and Y in situ), and it must preserve them itself before calling any | |
| 101 // subsequent handlers (ISRs). | |
| 102 | |
| 103 } HAL_SavedRegisters; | |
| 104 | |
| 105 | |
| 106 typedef struct | |
| 107 { | |
| 108 // Window save at stack pointer | |
| 109 HAL_SavedWindow li; | |
| 110 cyg_uint32 composite_return_ptr; /* structure returns */ | |
| 111 cyg_uint32 spill_args[6]; /* for callee to store */ | |
| 112 cyg_uint32 spare; /* keep this 64-bits */ | |
| 113 } HAL_FrameStructure; | |
| 114 | |
| 115 | |
| 116 //-------------------------------------------------------------------------- | |
| 117 // Exception handling function. | |
| 118 // This function is defined by the kernel according to this prototype. It is | |
| 119 // invoked from the HAL to deal with any CPU exceptions that the HAL does | |
| 120 // not want to deal with itself. It usually invokes the kernel's exception | |
| 121 // delivery mechanism. | |
| 122 | |
| 123 externC void cyg_hal_deliver_exception( CYG_WORD code, CYG_ADDRWORD data ); | |
| 124 | |
| 125 //-------------------------------------------------------------------------- | |
| 126 // Bit manipulation macros | |
| 127 | |
| 128 #define HAL_LSBIT_INDEX(index, mask) \ | |
| 129 CYG_MACRO_START \ | |
| 130 asm volatile ( \ | |
| 131 "scan %1, 0, %%l7;" \ | |
| 132 "mov 31, %0;" \ | |
| 133 "sub %0, %%l7, %0" \ | |
| 134 : "=r"(index) \ | |
| 135 : "r"(mask & ~(mask-1)) \ | |
| 136 : "l7" \ | |
| 137 ); \ | |
| 138 CYG_MACRO_END | |
| 139 | |
| 140 #define HAL_MSBIT_INDEX(index, mask) \ | |
| 141 CYG_MACRO_START \ | |
| 142 asm volatile ( \ | |
| 143 "scan %1, 0, %%l7;" \ | |
| 144 "mov 31, %0;" \ | |
| 145 "sub %0, %%l7, %0" \ | |
| 146 : "=r"(index) \ | |
| 147 : "r"(mask) \ | |
| 148 : "l7" \ | |
| 149 ); \ | |
| 150 CYG_MACRO_END | |
| 151 | |
| 152 | |
| 153 //-------------------------------------------------------------------------- | |
| 154 // Context Initialization | |
| 155 // Initialize the context of a thread. | |
| 156 // Arguments: | |
| 157 // _sparg_ name of variable containing current sp, will be written with new sp | |
| 158 // _thread_ thread object address, passed as argument to entry point | |
| 159 // _entry_ entry point address. | |
| 160 // _id_ bit pattern used in initializing registers, for debugging. | |
| 161 | |
| 162 externC CYG_ADDRESS | |
| 163 hal_thread_init_context( CYG_WORD sparg, | |
| 164 CYG_WORD thread, | |
| 165 CYG_WORD entry, | |
| 166 CYG_WORD id ); | |
| 167 | |
| 168 #define HAL_THREAD_INIT_CONTEXT( _sparg_, _thread_, _entry_, _id_ ) \ | |
| 169 CYG_MACRO_START \ | |
| 170 _sparg_ = hal_thread_init_context( (CYG_WORD)(_sparg_), \ | |
| 171 (CYG_WORD)(_thread_), \ | |
| 172 (CYG_WORD)(_entry_), \ | |
| 173 (CYG_WORD)(_id_) ); \ | |
| 174 CYG_MACRO_END | |
| 175 | |
| 176 //--------------------------------------------------------------------------- | |
| 177 // Context switch macros. | |
| 178 // The arguments are pointers to locations where the stack pointer | |
| 179 // of the current thread is to be stored, and from where the sp of the | |
| 180 // next thread is to be fetched. | |
| 181 | |
| 182 externC void hal_thread_switch_context( CYG_ADDRESS to, CYG_ADDRESS from ); | |
| 183 externC void hal_thread_load_context( CYG_ADDRESS to ) | |
| 184 __attribute__ ((noreturn)); | |
| 185 | |
| 186 #define HAL_THREAD_SWITCH_CONTEXT(_fspptr_,_tspptr_) \ | |
| 187 hal_thread_switch_context((CYG_ADDRESS)_tspptr_, \ | |
| 188 (CYG_ADDRESS)_fspptr_); | |
| 189 | |
| 190 #define HAL_THREAD_LOAD_CONTEXT(_tspptr_) \ | |
| 191 hal_thread_load_context( (CYG_ADDRESS)_tspptr_ ); | |
| 192 | |
| 193 | |
| 194 //--------------------------------------------------------------------------- | |
| 195 // Execution reorder barrier. | |
| 196 // When optimizing the compiler can reorder code. In multithreaded systems | |
| 197 // where the order of actions is vital, this can sometimes cause problems. | |
| 198 // This macro may be inserted into places where reordering should not happen. | |
| 199 | |
| 200 #define HAL_REORDER_BARRIER() asm volatile ( "" : : : "memory" ) | |
| 201 | |
| 202 //--------------------------------------------------------------------------- | |
| 203 // Breakpoint support | |
| 204 // HAL_BREAKPOINT() is a code sequence that will cause a breakpoint to happen | |
| 205 // if executed. | |
| 206 // HAL_BREAKINST is the value of the breakpoint instruction and | |
| 207 // HAL_BREAKINST_SIZE is its size in bytes. | |
| 208 | |
| 209 #define HAL_BREAKPOINT(_label_) \ | |
| 210 asm volatile (" .globl " #_label_ ";" \ | |
| 211 #_label_":" \ | |
| 212 "ta 1" \ | |
| 213 ); | |
| 214 | |
| 215 #define HAL_BREAKINST {0x91,0xd0,0x20,0x01} | |
| 216 #define HAL_BREAKINST_SIZE 4 | |
| 217 | |
| 218 //--------------------------------------------------------------------------- | |
| 219 // Thread register state manipulation for GDB support. | |
| 220 | |
| 221 // Translate a stack pointer as saved by the thread context macros above into | |
| 222 // a pointer to a HAL_SavedRegisters structure. | |
| 223 #define HAL_THREAD_GET_SAVED_REGISTERS( _sp_, _regs_ ) \ | |
| 224 (_regs_) = (HAL_SavedRegisters *)(_sp_) | |
| 225 | |
| 226 // Routines in icontext.c used here because they're quite large for | |
| 227 // the SPARClite (note param order): | |
| 228 externC void | |
| 229 cyg_hal_sparc_get_gdb_regs( void *gdb_regset, | |
| 230 HAL_SavedRegisters *eCos_regset ); | |
| 231 | |
| 232 externC void | |
| 233 cyg_hal_sparc_set_gdb_regs( HAL_SavedRegisters *eCos_regset, | |
| 234 void *gdb_regset ); | |
| 235 | |
| 236 | |
| 237 // Copy a set of registers from a HAL_SavedRegisters structure into a GDB | |
| 238 // ordered array. | |
| 239 #define HAL_GET_GDB_REGISTERS( _aregval_, _regs_ ) \ | |
| 240 CYG_MACRO_START \ | |
| 241 cyg_hal_sparc_get_gdb_regs( (_aregval_), (_regs_) ); \ | |
| 242 CYG_MACRO_END | |
| 243 | |
| 244 // Copy a GDB ordered array into a HAL_SavedRegisters structure. | |
| 245 #define HAL_SET_GDB_REGISTERS( _regs_ , _aregval_ ) \ | |
| 246 CYG_MACRO_START \ | |
| 247 cyg_hal_sparc_set_gdb_regs( (_regs_), (_aregval_) ); \ | |
| 248 CYG_MACRO_END | |
| 249 | |
| 250 //--------------------------------------------------------------------------- | |
| 251 // HAL setjmp | |
| 252 | |
|
130
eb9fd8c04db3
Merge from eCos master repository on 2000-10-23-17:01:37-BST
jlarmour
parents:
101
diff
changeset
|
253 #define CYGARC_JMP_BUF_SIZE 32 // (words) |
| 2 | 254 |
|
14
01ce82f3e11a
Merge from eCos master repository on 1999-06-11-17:05:41-BST
jlarmour
parents:
2
diff
changeset
|
255 // this too must be doubleword aligned (64 bit) |
|
01ce82f3e11a
Merge from eCos master repository on 1999-06-11-17:05:41-BST
jlarmour
parents:
2
diff
changeset
|
256 |
|
130
eb9fd8c04db3
Merge from eCos master repository on 2000-10-23-17:01:37-BST
jlarmour
parents:
101
diff
changeset
|
257 typedef cyg_uint64 hal_jmp_buf[ CYGARC_JMP_BUF_SIZE / 2 ]; |
| 2 | 258 |
| 259 externC int hal_setjmp(hal_jmp_buf env); | |
| 260 externC void hal_longjmp(hal_jmp_buf env, int val); | |
| 261 | |
| 262 //--------------------------------------------------------------------------- | |
| 263 // Flush Register Windows | |
| 264 // | |
| 265 // This is implemented as trap 3 in some SPARC systems. | |
| 266 // This macro is only for use from normal, foreground code. | |
| 267 // (including exception handlers and the like) | |
| 268 | |
| 269 #define HAL_FLUSH_REGISTERS_TO_STACK() \ | |
| 270 CYG_MACRO_START \ | |
| 271 cyg_uint32 _saveintr_; \ | |
| 272 HAL_DISABLE_INTERRUPTS( _saveintr_ ); /* leave traps on */ \ | |
| 273 asm volatile ( \ | |
| 274 /* force out all our callers register sets onto the stack */ \ | |
| 275 /* if necessary: the system will handily take care of this for */ \ | |
| 276 /* us as follows: */ \ | |
| 277 "save %%sp, -16 * 4, %%sp;" /* need all these to preserve */ \ | |
| 278 "save %%sp, -16 * 4, %%sp;" /* the linked list property... */ \ | |
| 279 "save %%sp, -16 * 4, %%sp;" \ | |
| 280 "save %%sp, -16 * 4, %%sp;" \ | |
| 281 "save %%sp, -16 * 4, %%sp;" \ | |
| 282 "save %%sp, -16 * 4, %%sp;" \ | |
| 283 "restore;" \ | |
| 284 "restore;" \ | |
| 285 "restore;" \ | |
| 286 "restore;" \ | |
| 287 "restore;" \ | |
| 288 "restore" \ | |
| 289 /* six of these is correct; a seventh would force out the */ \ | |
| 290 /* current set that we are using right now. Note that minimal */ \ | |
| 291 /* space is allowed on stack for locals and ins in case this */ \ | |
| 292 /* sequence itself gets interrupted and recurses too deep. */ \ | |
| 293 : \ | |
| 294 : \ | |
| 295 : "memory" \ | |
| 296 ); \ | |
| 297 HAL_RESTORE_INTERRUPTS( _saveintr_ ); \ | |
| 298 CYG_MACRO_END | |
| 299 | |
| 300 //--------------------------------------------------------------------------- | |
| 301 // Idle thread code. | |
| 302 // This macro is called in the idle thread loop, and gives the HAL the | |
| 303 // chance to insert code. Typical idle thread behaviour might be to halt the | |
| 304 // processor. | |
| 305 | |
| 306 //externC void hal_idle_thread_action(cyg_uint32 loop_count); | |
| 307 | |
| 308 #ifndef HAL_IDLE_THREAD_ACTION | |
| 309 #define HAL_IDLE_THREAD_ACTION(_count_) \ | |
| 310 /* Cyg_Clock::real_time_clock->tick() */ | |
| 311 #endif | |
| 312 | |
| 313 //--------------------------------------------------------------------------- | |
| 314 | |
| 315 // Minimal and sensible stack sizes: the intention is that applications | |
| 316 // will use these to provide a stack size in the first instance prior to | |
| 317 // proper analysis. Idle thread stack should be this big. | |
| 318 | |
| 319 // THESE ARE NOT INTENDED TO BE MICROMETRICALLY ACCURATE FIGURES. | |
| 320 // THEY ARE HOWEVER ENOUGH TO START PROGRAMMING. | |
| 321 // YOU MUST MAKE YOUR STACKS LARGER IF YOU HAVE LARGE "AUTO" VARIABLES! | |
| 322 | |
| 323 // We define quite large stack needs for SPARClite, for it requires 576 | |
| 324 // bytes (144 words) to process an interrupt and thread-switch, and | |
| 325 // momentarily, but needed in case of recursive interrupts, it needs 208 | |
| 326 // words - if a sequence of saves to push out other regsets is interrupted. | |
| 327 | |
| 328 // This is not a config option because it should not be adjusted except | |
| 329 // under "enough rope" sort of disclaimers. | |
| 330 | |
| 331 // A minimal, optimized stack frame is 24 words, but even -O2 code seems to | |
| 332 // place a few locals in the locals area: round this up to provide a | |
| 333 // sensible overestimate: | |
| 334 #define CYGNUM_HAL_STACK_FRAME_SIZE (4 * 32) | |
| 335 | |
| 336 // Stack needed for a context switch: this is implicit in the estimate for | |
| 337 // interrupts so not explicitly used below: | |
| 338 #define CYGNUM_HAL_STACK_CONTEXT_SIZE (4 * 32) | |
| 339 | |
| 340 // Interrupt + call to ISR, interrupt_end() and the DSR | |
| 341 #define CYGNUM_HAL_STACK_INTERRUPT_SIZE \ | |
| 342 ((208 * 4) + 2 * CYGNUM_HAL_STACK_FRAME_SIZE) | |
| 343 | |
| 344 // And we have lots of registers so no particular amount is added in for | |
| 345 // typical local variable usage. | |
| 346 | |
| 347 // Typically we have 4 nestable interrupt sources, clock, serialin, | |
| 348 // serialout, (and NMI button, but you want it to not destroy context): | |
| 349 | |
| 350 #define CYGNUM_HAL_STACK_SIZE_MINIMUM \ | |
| 351 (4 * CYGNUM_HAL_STACK_INTERRUPT_SIZE + 2 * CYGNUM_HAL_STACK_FRAME_SIZE) | |
| 352 | |
| 353 #define CYGNUM_HAL_STACK_SIZE_TYPICAL \ | |
| 354 (CYGNUM_HAL_STACK_SIZE_MINIMUM + 8 * CYGNUM_HAL_STACK_FRAME_SIZE) | |
| 355 | |
|
101
c37d3a9e1b28
Merge from eCos master repository on 2000-06-16-07:47:03-BST
jlarmour
parents:
66
diff
changeset
|
356 //-------------------------------------------------------------------------- |
|
c37d3a9e1b28
Merge from eCos master repository on 2000-06-16-07:47:03-BST
jlarmour
parents:
66
diff
changeset
|
357 // Macros for switching context between two eCos instances (jump from |
|
c37d3a9e1b28
Merge from eCos master repository on 2000-06-16-07:47:03-BST
jlarmour
parents:
66
diff
changeset
|
358 // code in ROM to code in RAM or vice versa). |
|
c37d3a9e1b28
Merge from eCos master repository on 2000-06-16-07:47:03-BST
jlarmour
parents:
66
diff
changeset
|
359 #define CYGARC_HAL_SAVE_GP() |
|
c37d3a9e1b28
Merge from eCos master repository on 2000-06-16-07:47:03-BST
jlarmour
parents:
66
diff
changeset
|
360 #define CYGARC_HAL_RESTORE_GP() |
|
c37d3a9e1b28
Merge from eCos master repository on 2000-06-16-07:47:03-BST
jlarmour
parents:
66
diff
changeset
|
361 |
| 2 | 362 //----------------------------------------------------------------------------- |
| 363 | |
| 364 #endif // CYGONCE_HAL_ARCH_H | |
| 365 // End of hal_arch.h |