ecos: packages/hal/mips/arch/current/src/hal

annotate packages/hal/mips/arch/current/src/hal_misc.c @ 101:c37d3a9e1b28 ecos-sw-2000-06-16

Merge from eCos master repository on 2000-06-16-07:47:03-BST

author	jlarmour
date	Fri, 16 Jun 2000 16:43:59 +0000
parents	435cced73e2f
children	518f42066aba

rev	line source
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: 0 diff changeset	1 //==========================================================================
0 3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	2 //
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: 0 diff changeset	3 // hal_misc.c
0 3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	4 //
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: 0 diff changeset	5 // HAL miscellaneous functions
0 3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	6 //
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: 0 diff changeset	7 //==========================================================================
0 3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	8 //####COPYRIGHTBEGIN####
64 c38311975d4f Merge from eCos master repository on 2000-01-28-04:28:11-GMT jlarmour parents: 62 diff changeset	9 //
c38311975d4f Merge from eCos master repository on 2000-01-28-04:28:11-GMT jlarmour parents: 62 diff changeset	10 // -------------------------------------------
c38311975d4f Merge from eCos master repository on 2000-01-28-04:28:11-GMT jlarmour parents: 62 diff changeset	11 // The contents of this file are subject to the Red Hat eCos Public License
66 bf00f99aec69 Merge from eCos master repository on 2000-02-02-19:16:44-GMT jlarmour parents: 64 diff changeset	12 // Version 1.1 (the "License"); you may not use this file except in
64 c38311975d4f Merge from eCos master repository on 2000-01-28-04:28:11-GMT jlarmour parents: 62 diff changeset	13 // compliance with the License. You may obtain a copy of the License at
66 bf00f99aec69 Merge from eCos master repository on 2000-02-02-19:16:44-GMT jlarmour parents: 64 diff changeset	14 // http://www.redhat.com/
64 c38311975d4f Merge from eCos master repository on 2000-01-28-04:28:11-GMT jlarmour parents: 62 diff changeset	15 //
66 bf00f99aec69 Merge from eCos master repository on 2000-02-02-19:16:44-GMT jlarmour parents: 64 diff changeset	16 // Software distributed under the License is distributed on an "AS IS"
64 c38311975d4f Merge from eCos master repository on 2000-01-28-04:28:11-GMT jlarmour parents: 62 diff changeset	17 // basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the
c38311975d4f Merge from eCos master repository on 2000-01-28-04:28:11-GMT jlarmour parents: 62 diff changeset	18 // License for the specific language governing rights and limitations under
c38311975d4f Merge from eCos master repository on 2000-01-28-04:28:11-GMT jlarmour parents: 62 diff changeset	19 // the License.
c38311975d4f Merge from eCos master repository on 2000-01-28-04:28:11-GMT jlarmour parents: 62 diff changeset	20 //
c38311975d4f Merge from eCos master repository on 2000-01-28-04:28:11-GMT jlarmour parents: 62 diff changeset	21 // The Original Code is eCos - Embedded Configurable Operating System,
c38311975d4f Merge from eCos master repository on 2000-01-28-04:28:11-GMT jlarmour parents: 62 diff changeset	22 // released September 30, 1998.
c38311975d4f Merge from eCos master repository on 2000-01-28-04:28:11-GMT jlarmour parents: 62 diff changeset	23 //
c38311975d4f Merge from eCos master repository on 2000-01-28-04:28:11-GMT jlarmour parents: 62 diff changeset	24 // The Initial Developer of the Original Code is Red Hat.
c38311975d4f Merge from eCos master repository on 2000-01-28-04:28:11-GMT jlarmour parents: 62 diff changeset	25 // Portions created by Red Hat are
c38311975d4f Merge from eCos master repository on 2000-01-28-04:28:11-GMT jlarmour parents: 62 diff changeset	26 // Copyright (C) 1998, 1999, 2000 Red Hat, Inc.
c38311975d4f Merge from eCos master repository on 2000-01-28-04:28:11-GMT jlarmour parents: 62 diff changeset	27 // All Rights Reserved.
c38311975d4f Merge from eCos master repository on 2000-01-28-04:28:11-GMT jlarmour parents: 62 diff changeset	28 // -------------------------------------------
c38311975d4f Merge from eCos master repository on 2000-01-28-04:28:11-GMT jlarmour parents: 62 diff changeset	29 //
0 3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	30 //####COPYRIGHTEND####
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: 0 diff changeset	31 //==========================================================================
0 3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	32 //#####DESCRIPTIONBEGIN####
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	33 //
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: 0 diff changeset	34 // Author(s): nickg
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: 0 diff changeset	35 // Contributors: nickg, jlarmour
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: 0 diff changeset	36 // Date: 1999-01-21
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: 0 diff changeset	37 // Purpose: HAL miscellaneous functions
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: 0 diff changeset	38 // Description: This file contains miscellaneous functions provided by the
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: 0 diff changeset	39 // HAL.
0 3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	40 //
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	41 //####DESCRIPTIONEND####
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	42 //
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: 0 diff changeset	43 //========================================================================*/
0 3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	44
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	45 #include <pkgconf/hal.h>
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	46
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	47 #include <cyg/infra/cyg_type.h> // Base types
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	48 #include <cyg/infra/cyg_trac.h> // tracing macros
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	49 #include <cyg/infra/cyg_ass.h> // assertion macros
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	50
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	51 #include <cyg/hal/hal_arch.h> // architectural definitions
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	52
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	53 #include <cyg/hal/hal_intr.h> // Interrupt handling
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	54
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	55 #include <cyg/hal/hal_cache.h> // Cache handling
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	56
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: 0 diff changeset	57 /------------------------------------------------------------------------/
18 7253dcc42a09 Merge from eCos master repository on 1999-06-25-15:31:50-BST jlarmour parents: 16 diff changeset	58 /* If required, define a variable to store the clock period. */
7253dcc42a09 Merge from eCos master repository on 1999-06-25-15:31:50-BST jlarmour parents: 16 diff changeset	59
7253dcc42a09 Merge from eCos master repository on 1999-06-25-15:31:50-BST jlarmour parents: 16 diff changeset	60 #ifdef CYGHWR_HAL_CLOCK_PERIOD_DEFINED
7253dcc42a09 Merge from eCos master repository on 1999-06-25-15:31:50-BST jlarmour parents: 16 diff changeset	61
7253dcc42a09 Merge from eCos master repository on 1999-06-25-15:31:50-BST jlarmour parents: 16 diff changeset	62 CYG_WORD32 cyg_hal_clock_period;
7253dcc42a09 Merge from eCos master repository on 1999-06-25-15:31:50-BST jlarmour parents: 16 diff changeset	63
7253dcc42a09 Merge from eCos master repository on 1999-06-25-15:31:50-BST jlarmour parents: 16 diff changeset	64 #endif
7253dcc42a09 Merge from eCos master repository on 1999-06-25-15:31:50-BST jlarmour parents: 16 diff changeset	65
7253dcc42a09 Merge from eCos master repository on 1999-06-25-15:31:50-BST jlarmour parents: 16 diff changeset	66 /------------------------------------------------------------------------/
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: 0 diff changeset	67 /* First level C exception handler. */
0 3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	68
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	69 externC void __handle_exception (void);
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	70
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	71 externC HAL_SavedRegisters *_hal_registers;
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	72
36 e97d78785e2d Merge from eCos master repository on 1999-09-12-15:40:34-BST jlarmour parents: 26 diff changeset	73 externC void *__mem_fault_handler;
e97d78785e2d Merge from eCos master repository on 1999-09-12-15:40:34-BST jlarmour parents: 26 diff changeset	74
26 4741a3c3496a Merge from eCos master repository on 1999-07-23-05:47:06-BST jlarmour parents: 18 diff changeset	75 externC cyg_uint8 cyg_hal_mips_process_fpe( HAL_SavedRegisters *regs );
4741a3c3496a Merge from eCos master repository on 1999-07-23-05:47:06-BST jlarmour parents: 18 diff changeset	76
38 e7ba79f6d3a8 Merge from eCos master repository on 1999-09-23-20:10:25-BST jlarmour parents: 36 diff changeset	77 externC cyg_uint32 cyg_hal_exception_handler(HAL_SavedRegisters *regs)
0 3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	78 {
62 7a6ac9edc838 Merge from eCos master repository on 2000-01-24-19:43:49-GMT jlarmour parents: 50 diff changeset	79 #if defined(CYGHWR_HAL_MIPS_FPU) && \
7a6ac9edc838 Merge from eCos master repository on 2000-01-24-19:43:49-GMT jlarmour parents: 50 diff changeset	80 defined(CYGSEM_HAL_MIPS_EMULATE_UNIMPLEMENTED_FPU_OPS)
26 4741a3c3496a Merge from eCos master repository on 1999-07-23-05:47:06-BST jlarmour parents: 18 diff changeset	81 // We may be required to emulate certain unimplemented Floating Point
4741a3c3496a Merge from eCos master repository on 1999-07-23-05:47:06-BST jlarmour parents: 18 diff changeset	82 // operations
4741a3c3496a Merge from eCos master repository on 1999-07-23-05:47:06-BST jlarmour parents: 18 diff changeset	83
4741a3c3496a Merge from eCos master repository on 1999-07-23-05:47:06-BST jlarmour parents: 18 diff changeset	84 if ((regs->vector>>2) == CYGNUM_HAL_VECTOR_FPE) {
4741a3c3496a Merge from eCos master repository on 1999-07-23-05:47:06-BST jlarmour parents: 18 diff changeset	85
4741a3c3496a Merge from eCos master repository on 1999-07-23-05:47:06-BST jlarmour parents: 18 diff changeset	86 // cyg_hal_mips_process_fpe() returns non-zero if it could handle
4741a3c3496a Merge from eCos master repository on 1999-07-23-05:47:06-BST jlarmour parents: 18 diff changeset	87 // the exception successfully. If so, we just return
4741a3c3496a Merge from eCos master repository on 1999-07-23-05:47:06-BST jlarmour parents: 18 diff changeset	88
4741a3c3496a Merge from eCos master repository on 1999-07-23-05:47:06-BST jlarmour parents: 18 diff changeset	89 if ( cyg_hal_mips_process_fpe(regs) )
38 e7ba79f6d3a8 Merge from eCos master repository on 1999-09-23-20:10:25-BST jlarmour parents: 36 diff changeset	90 return 0;
26 4741a3c3496a Merge from eCos master repository on 1999-07-23-05:47:06-BST jlarmour parents: 18 diff changeset	91 }
4741a3c3496a Merge from eCos master repository on 1999-07-23-05:47:06-BST jlarmour parents: 18 diff changeset	92 #endif
4741a3c3496a Merge from eCos master repository on 1999-07-23-05:47:06-BST jlarmour parents: 18 diff changeset	93
0 3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	94 #if defined(CYGDBG_HAL_DEBUG_GDB_INCLUDE_STUBS)
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	95
36 e97d78785e2d Merge from eCos master repository on 1999-09-12-15:40:34-BST jlarmour parents: 26 diff changeset	96 // If we caught an exception inside the stubs, see if we were expecting it
e97d78785e2d Merge from eCos master repository on 1999-09-12-15:40:34-BST jlarmour parents: 26 diff changeset	97 // and if so jump to the saved address
e97d78785e2d Merge from eCos master repository on 1999-09-12-15:40:34-BST jlarmour parents: 26 diff changeset	98 if (__mem_fault_handler) {
e97d78785e2d Merge from eCos master repository on 1999-09-12-15:40:34-BST jlarmour parents: 26 diff changeset	99 regs->pc = (CYG_ADDRWORD)__mem_fault_handler;
38 e7ba79f6d3a8 Merge from eCos master repository on 1999-09-23-20:10:25-BST jlarmour parents: 36 diff changeset	100 return 0; // Caught an exception inside stubs
36 e97d78785e2d Merge from eCos master repository on 1999-09-12-15:40:34-BST jlarmour parents: 26 diff changeset	101 }
e97d78785e2d Merge from eCos master repository on 1999-09-12-15:40:34-BST jlarmour parents: 26 diff changeset	102
0 3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	103 // Set the pointer to the registers of the current exception
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	104 // context. At entry the GDB stub will expand the
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	105 // HAL_SavedRegisters structure into a (bigger) register array.
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	106 _hal_registers = regs;
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	107 __handle_exception();
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	108
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	109 #elif defined(CYGFUN_HAL_COMMON_KERNEL_SUPPORT) && defined(CYGPKG_HAL_EXCEPTIONS)
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	110
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	111 // We should decode the vector and pass a more appropriate
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	112 // value as the second argument. For now we simply pass a
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	113 // pointer to the saved registers. We should also divert
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	114 // breakpoint and other debug vectors into the debug stubs.
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	115
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: 0 diff changeset	116 cyg_hal_deliver_exception( regs->vector>>2, (CYG_ADDRWORD)regs );
0 3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	117
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	118 #else
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	119
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	120 CYG_FAIL("Exception!!!");
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	121
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	122 #endif
38 e7ba79f6d3a8 Merge from eCos master repository on 1999-09-23-20:10:25-BST jlarmour parents: 36 diff changeset	123 return 0;
0 3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	124 }
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	125
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: 0 diff changeset	126 /------------------------------------------------------------------------/
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: 0 diff changeset	127 /* default ISR */
0 3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	128
101 c37d3a9e1b28 Merge from eCos master repository on 2000-06-16-07:47:03-BST jlarmour parents: 76 diff changeset	129 #ifndef CYGSEM_HAL_VIRTUAL_VECTOR_SUPPORT
0 3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	130 externC cyg_uint32 hal_default_isr(CYG_ADDRWORD vector, CYG_ADDRWORD data)
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	131 {
50 a0774359f013 Merge from eCos master repository on 1999-11-02-17:02:15-GMT jlarmour parents: 38 diff changeset	132 #if defined(CYGDBG_HAL_MIPS_DEBUG_GDB_CTRLC_SUPPORT) && \
10 d3fbcdfa1b2f Merge from eCos master repository on 1999-05-29-00:13:11-BST jlarmour parents: 6 diff changeset	133 defined(CYGHWR_HAL_GDB_PORT_VECTOR) && \
d3fbcdfa1b2f Merge from eCos master repository on 1999-05-29-00:13:11-BST jlarmour parents: 6 diff changeset	134 defined(HAL_CTRLC_ISR)
d3fbcdfa1b2f Merge from eCos master repository on 1999-05-29-00:13:11-BST jlarmour parents: 6 diff changeset	135
18 7253dcc42a09 Merge from eCos master repository on 1999-06-25-15:31:50-BST jlarmour parents: 16 diff changeset	136 #ifndef CYGIMP_HAL_COMMON_INTERRUPTS_CHAIN
10 d3fbcdfa1b2f Merge from eCos master repository on 1999-05-29-00:13:11-BST jlarmour parents: 6 diff changeset	137 if( vector == CYGHWR_HAL_GDB_PORT_VECTOR )
18 7253dcc42a09 Merge from eCos master repository on 1999-06-25-15:31:50-BST jlarmour parents: 16 diff changeset	138 #endif
10 d3fbcdfa1b2f Merge from eCos master repository on 1999-05-29-00:13:11-BST jlarmour parents: 6 diff changeset	139 {
d3fbcdfa1b2f Merge from eCos master repository on 1999-05-29-00:13:11-BST jlarmour parents: 6 diff changeset	140 cyg_uint32 result = HAL_CTRLC_ISR( vector, data );
d3fbcdfa1b2f Merge from eCos master repository on 1999-05-29-00:13:11-BST jlarmour parents: 6 diff changeset	141 if( result != 0 ) return result;
d3fbcdfa1b2f Merge from eCos master repository on 1999-05-29-00:13:11-BST jlarmour parents: 6 diff changeset	142 }
d3fbcdfa1b2f Merge from eCos master repository on 1999-05-29-00:13:11-BST jlarmour parents: 6 diff changeset	143
62 7a6ac9edc838 Merge from eCos master repository on 2000-01-24-19:43:49-GMT jlarmour parents: 50 diff changeset	144 #if defined(CYGSEM_HAL_USE_ROM_MONITOR_CygMon)
38 e7ba79f6d3a8 Merge from eCos master repository on 1999-09-23-20:10:25-BST jlarmour parents: 36 diff changeset	145 #if defined(HAL_DIAG_IRQ_CHECK)
e7ba79f6d3a8 Merge from eCos master repository on 1999-09-23-20:10:25-BST jlarmour parents: 36 diff changeset	146 {
e7ba79f6d3a8 Merge from eCos master repository on 1999-09-23-20:10:25-BST jlarmour parents: 36 diff changeset	147 cyg_uint32 ret;
e7ba79f6d3a8 Merge from eCos master repository on 1999-09-23-20:10:25-BST jlarmour parents: 36 diff changeset	148 /* let ROM monitor handle unexpected interrupts */
e7ba79f6d3a8 Merge from eCos master repository on 1999-09-23-20:10:25-BST jlarmour parents: 36 diff changeset	149 HAL_DIAG_IRQ_CHECK(vector, ret);
e7ba79f6d3a8 Merge from eCos master repository on 1999-09-23-20:10:25-BST jlarmour parents: 36 diff changeset	150 if (ret<=0)
e7ba79f6d3a8 Merge from eCos master repository on 1999-09-23-20:10:25-BST jlarmour parents: 36 diff changeset	151 return ret;
e7ba79f6d3a8 Merge from eCos master repository on 1999-09-23-20:10:25-BST jlarmour parents: 36 diff changeset	152 }
e7ba79f6d3a8 Merge from eCos master repository on 1999-09-23-20:10:25-BST jlarmour parents: 36 diff changeset	153 #endif // def HAL_DIAG_IRQ_CHECK
62 7a6ac9edc838 Merge from eCos master repository on 2000-01-24-19:43:49-GMT jlarmour parents: 50 diff changeset	154 #endif // def CYGSEM_HAL_USE_ROM_MONITOR_CygMon
10 d3fbcdfa1b2f Merge from eCos master repository on 1999-05-29-00:13:11-BST jlarmour parents: 6 diff changeset	155 #endif
d3fbcdfa1b2f Merge from eCos master repository on 1999-05-29-00:13:11-BST jlarmour parents: 6 diff changeset	156
0 3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	157 CYG_TRACE1(true, "Interrupt: %d", vector);
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	158 CYG_FAIL("Spurious Interrupt!!!");
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	159 return 0;
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	160 }
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	161
101 c37d3a9e1b28 Merge from eCos master repository on 2000-06-16-07:47:03-BST jlarmour parents: 76 diff changeset	162 #else // CYGSEM_HAL_VIRTUAL_VECTOR_SUPPORT
c37d3a9e1b28 Merge from eCos master repository on 2000-06-16-07:47:03-BST jlarmour parents: 76 diff changeset	163
c37d3a9e1b28 Merge from eCos master repository on 2000-06-16-07:47:03-BST jlarmour parents: 76 diff changeset	164 externC cyg_uint32 hal_arch_default_isr(CYG_ADDRWORD vector, CYG_ADDRWORD data)
c37d3a9e1b28 Merge from eCos master repository on 2000-06-16-07:47:03-BST jlarmour parents: 76 diff changeset	165 {
c37d3a9e1b28 Merge from eCos master repository on 2000-06-16-07:47:03-BST jlarmour parents: 76 diff changeset	166 #if defined(CYGDBG_HAL_MIPS_DEBUG_GDB_CTRLC_SUPPORT) && \
c37d3a9e1b28 Merge from eCos master repository on 2000-06-16-07:47:03-BST jlarmour parents: 76 diff changeset	167 defined(CYGHWR_HAL_GDB_PORT_VECTOR) && \
c37d3a9e1b28 Merge from eCos master repository on 2000-06-16-07:47:03-BST jlarmour parents: 76 diff changeset	168 defined(HAL_CTRLC_ISR)
c37d3a9e1b28 Merge from eCos master repository on 2000-06-16-07:47:03-BST jlarmour parents: 76 diff changeset	169
c37d3a9e1b28 Merge from eCos master repository on 2000-06-16-07:47:03-BST jlarmour parents: 76 diff changeset	170 #if defined(CYGSEM_HAL_USE_ROM_MONITOR_CygMon)
c37d3a9e1b28 Merge from eCos master repository on 2000-06-16-07:47:03-BST jlarmour parents: 76 diff changeset	171 #if defined(HAL_DIAG_IRQ_CHECK)
c37d3a9e1b28 Merge from eCos master repository on 2000-06-16-07:47:03-BST jlarmour parents: 76 diff changeset	172 {
c37d3a9e1b28 Merge from eCos master repository on 2000-06-16-07:47:03-BST jlarmour parents: 76 diff changeset	173 cyg_uint32 ret;
c37d3a9e1b28 Merge from eCos master repository on 2000-06-16-07:47:03-BST jlarmour parents: 76 diff changeset	174 /* let ROM monitor handle unexpected interrupts */
c37d3a9e1b28 Merge from eCos master repository on 2000-06-16-07:47:03-BST jlarmour parents: 76 diff changeset	175 HAL_DIAG_IRQ_CHECK(vector, ret);
c37d3a9e1b28 Merge from eCos master repository on 2000-06-16-07:47:03-BST jlarmour parents: 76 diff changeset	176 if (ret<=0)
c37d3a9e1b28 Merge from eCos master repository on 2000-06-16-07:47:03-BST jlarmour parents: 76 diff changeset	177 return ret;
c37d3a9e1b28 Merge from eCos master repository on 2000-06-16-07:47:03-BST jlarmour parents: 76 diff changeset	178 }
c37d3a9e1b28 Merge from eCos master repository on 2000-06-16-07:47:03-BST jlarmour parents: 76 diff changeset	179 #endif // def HAL_DIAG_IRQ_CHECK
c37d3a9e1b28 Merge from eCos master repository on 2000-06-16-07:47:03-BST jlarmour parents: 76 diff changeset	180 #endif // def CYGSEM_HAL_USE_ROM_MONITOR_CygMon
c37d3a9e1b28 Merge from eCos master repository on 2000-06-16-07:47:03-BST jlarmour parents: 76 diff changeset	181 #endif
c37d3a9e1b28 Merge from eCos master repository on 2000-06-16-07:47:03-BST jlarmour parents: 76 diff changeset	182
c37d3a9e1b28 Merge from eCos master repository on 2000-06-16-07:47:03-BST jlarmour parents: 76 diff changeset	183 return 0;
c37d3a9e1b28 Merge from eCos master repository on 2000-06-16-07:47:03-BST jlarmour parents: 76 diff changeset	184 }
c37d3a9e1b28 Merge from eCos master repository on 2000-06-16-07:47:03-BST jlarmour parents: 76 diff changeset	185
c37d3a9e1b28 Merge from eCos master repository on 2000-06-16-07:47:03-BST jlarmour parents: 76 diff changeset	186 #endif // CYGSEM_HAL_VIRTUAL_VECTOR_SUPPORT
c37d3a9e1b28 Merge from eCos master repository on 2000-06-16-07:47:03-BST jlarmour parents: 76 diff changeset	187
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: 0 diff changeset	188 /------------------------------------------------------------------------/
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: 0 diff changeset	189 /* data copy and bss zero functions */
0 3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	190
16 4f2df4ab82c8 Merge from eCos master repository on 1999-06-18-15:25:04-BST jlarmour parents: 12 diff changeset	191 typedef void (CYG_SYM_ADDRESS)(void);
0 3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	192
16 4f2df4ab82c8 Merge from eCos master repository on 1999-06-18-15:25:04-BST jlarmour parents: 12 diff changeset	193 // All these must use this type of address to stop them being given relocations
4f2df4ab82c8 Merge from eCos master repository on 1999-06-18-15:25:04-BST jlarmour parents: 12 diff changeset	194 // relative to $gp (i.e. assuming they would be in .sdata)
4f2df4ab82c8 Merge from eCos master repository on 1999-06-18-15:25:04-BST jlarmour parents: 12 diff changeset	195 extern CYG_SYM_ADDRESS __ram_data_start;
4f2df4ab82c8 Merge from eCos master repository on 1999-06-18-15:25:04-BST jlarmour parents: 12 diff changeset	196 extern CYG_SYM_ADDRESS __ram_data_end;
4f2df4ab82c8 Merge from eCos master repository on 1999-06-18-15:25:04-BST jlarmour parents: 12 diff changeset	197 extern CYG_SYM_ADDRESS __rom_data_start;
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: 0 diff changeset	198
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: 0 diff changeset	199 #ifdef CYG_HAL_STARTUP_ROM
0 3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	200 void hal_copy_data(void)
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	201 {
16 4f2df4ab82c8 Merge from eCos master repository on 1999-06-18-15:25:04-BST jlarmour parents: 12 diff changeset	202 char p = (char )&__ram_data_start;
0 3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	203 char q = (char )&__rom_data_start;
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	204
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	205 while( p != (char *)&__ram_data_end )
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	206 p++ = q++;
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	207 }
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	208 #endif
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	209
16 4f2df4ab82c8 Merge from eCos master repository on 1999-06-18-15:25:04-BST jlarmour parents: 12 diff changeset	210 extern CYG_SYM_ADDRESS __bss_start;
4f2df4ab82c8 Merge from eCos master repository on 1999-06-18-15:25:04-BST jlarmour parents: 12 diff changeset	211 extern CYG_SYM_ADDRESS __bss_end;
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: 0 diff changeset	212
0 3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	213 void hal_zero_bss(void)
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	214 {
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	215 char p = (char )&__bss_start;
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	216
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: 0 diff changeset	217 while( p != (char *)&__bss_end )
0 3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	218 *p++ = 0;
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	219 }
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	220
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: 0 diff changeset	221 /------------------------------------------------------------------------/
0 3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	222
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: 0 diff changeset	223 #ifdef CYGSEM_HAL_STOP_CONSTRUCTORS_ON_FLAG
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: 0 diff changeset	224 cyg_bool cyg_hal_stop_constructors;
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: 0 diff changeset	225 #endif
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: 0 diff changeset	226
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: 0 diff changeset	227 typedef void (*pfunc) (void);
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: 0 diff changeset	228 extern pfunc __CTOR_LIST__[];
12 4cc3eff958ab Merge from eCos master repository on 1999-06-04-22:24:56-BST jlarmour parents: 10 diff changeset	229 extern pfunc __CTOR_END__[];
0 3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	230
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	231 void
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: 0 diff changeset	232 cyg_hal_invoke_constructors(void)
0 3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	233 {
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: 0 diff changeset	234 #ifdef CYGSEM_HAL_STOP_CONSTRUCTORS_ON_FLAG
12 4cc3eff958ab Merge from eCos master repository on 1999-06-04-22:24:56-BST jlarmour parents: 10 diff changeset	235 static pfunc *p = &__CTOR_END__[-1];
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: 0 diff changeset	236
12 4cc3eff958ab Merge from eCos master repository on 1999-06-04-22:24:56-BST jlarmour parents: 10 diff changeset	237 cyg_hal_stop_constructors = 0;
4cc3eff958ab Merge from eCos master repository on 1999-06-04-22:24:56-BST jlarmour parents: 10 diff changeset	238 for (; p >= __CTOR_LIST__; p--) {
4cc3eff958ab Merge from eCos master repository on 1999-06-04-22:24:56-BST jlarmour parents: 10 diff changeset	239 (*p) ();
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: 0 diff changeset	240 if (cyg_hal_stop_constructors) {
12 4cc3eff958ab Merge from eCos master repository on 1999-06-04-22:24:56-BST jlarmour parents: 10 diff changeset	241 p--;
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: 0 diff changeset	242 break;
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: 0 diff changeset	243 }
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: 0 diff changeset	244 }
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: 0 diff changeset	245 #else
12 4cc3eff958ab Merge from eCos master repository on 1999-06-04-22:24:56-BST jlarmour parents: 10 diff changeset	246 pfunc *p;
4cc3eff958ab Merge from eCos master repository on 1999-06-04-22:24:56-BST jlarmour parents: 10 diff changeset	247
4cc3eff958ab Merge from eCos master repository on 1999-06-04-22:24:56-BST jlarmour parents: 10 diff changeset	248 for (p = &__CTOR_END__[-1]; p >= __CTOR_LIST__; p--)
4cc3eff958ab Merge from eCos master repository on 1999-06-04-22:24:56-BST jlarmour parents: 10 diff changeset	249 (*p) ();
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: 0 diff changeset	250 #endif
0 3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	251
6 d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	252 } // cyg_hal_invoke_constructors()
0 3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	253
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: 0 diff changeset	254 /------------------------------------------------------------------------/
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: 0 diff changeset	255 /* Determine the index of the ls bit of the supplied mask. */
0 3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	256
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	257 cyg_uint32 hal_lsbit_index(cyg_uint32 mask)
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	258 {
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	259 cyg_uint32 n = mask;
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	260
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	261 static const signed char tab[64] =
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	262 { -1, 0, 1, 12, 2, 6, 0, 13, 3, 0, 7, 0, 0, 0, 0, 14, 10,
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	263 4, 0, 0, 8, 0, 0, 25, 0, 0, 0, 0, 0, 21, 27 , 15, 31, 11,
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	264 5, 0, 0, 0, 0, 0, 9, 0, 0, 24, 0, 0 , 20, 26, 30, 0, 0, 0,
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	265 0, 23, 0, 19, 29, 0, 22, 18, 28, 17, 16, 0
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	266 };
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	267
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	268 n &= ~(n-1UL);
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	269 n = (n<<16)-n;
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	270 n = (n<<6)+n;
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	271 n = (n<<4)+n;
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	272
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	273 return tab[n>>26];
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	274 }
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	275
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: 0 diff changeset	276 /------------------------------------------------------------------------/
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: 0 diff changeset	277 /* Determine the index of the ms bit of the supplied mask. */
0 3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	278
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	279 cyg_uint32 hal_msbit_index(cyg_uint32 mask)
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	280 {
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	281 cyg_uint32 x = mask;
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	282 cyg_uint32 w;
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	283
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	284 /* Phase 1: make word with all ones from that one to the right */
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	285 x \|= x >> 16;
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	286 x \|= x >> 8;
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	287 x \|= x >> 4;
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	288 x \|= x >> 2;
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	289 x \|= x >> 1;
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	290
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	291 /* Phase 2: calculate number of "1" bits in the word */
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	292 w = (x & 0x55555555) + ((x >> 1) & 0x55555555);
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	293 w = (w & 0x33333333) + ((w >> 2) & 0x33333333);
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	294 w = w + (w >> 4);
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	295 w = (w & 0x000F000F) + ((w >> 8) & 0x000F000F);
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	296 return (cyg_uint32)((w + (w >> 16)) & 0xFF);
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	297
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	298 }
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	299
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: 0 diff changeset	300 /------------------------------------------------------------------------/
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: 0 diff changeset	301 /* Idle thread action */
0 3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	302
6 d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	303 #include <cyg/infra/diag.h>
d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	304
0 3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	305 void hal_idle_thread_action( cyg_uint32 count )
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	306 {
76 435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: 66 diff changeset	307 #if 0 //def CYGPKG_HAL_MIPS_SIM
0 3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	308 if( (count % 1000) == 0 )
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	309 {
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	310 // This code causes a fake interrupt.
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	311 asm volatile (
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	312 "xor $24,$24,$24;"
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	313 "mtc0 $24,$13;"
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	314 "lui $25,%%hi(1f);"
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	315 "ori $25,$25,%%lo(1f);"
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	316 "j other_vector;"
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	317 "nop;"
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	318 "1:"
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	319 :
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	320 :
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	321 : "t8", "t9"
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	322 );
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	323 }
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	324 #endif
76 435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: 66 diff changeset	325 #if 0 //def CYGPKG_HAL_MIPS_TX39_JMR3904
0 3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	326
6 d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	327 if( (count % 100000 ) == 0 )
0 3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	328 {
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	329 // cyg_uint32 tval, isr, imr, ilr;
6 d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	330 cyg_uint32 sr = 0, cr = 0, ctr = 0, cpr = 0;
0 3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	331 // HAL_CLOCK_READ( &tval );
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	332 // HAL_READ_UINT32( 0xFFFFC000, isr );
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	333 // HAL_READ_UINT32( 0xFFFFC004, imr );
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	334 // HAL_READ_UINT32( 0xFFFFC01C, ilr );
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	335 // CYG_TRACE2(1, "Timer value, ISR ",tval, isr);
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	336 // CYG_TRACE2(1, "IMR ILR0 ", imr, ilr);
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	337
6 d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	338 // asm volatile (
d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	339 // "mfc0 %0,$12;"
d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	340 // "nop; nop; nop;"
d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	341 // "mfc0 %1,$13;"
d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	342 // "nop; nop; nop;"
d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	343 // "mfc0 %2,$9;"
d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	344 // "nop; nop; nop;"
d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	345 // "mfc0 %3,$11;"
d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	346 // "nop; nop; nop;"
d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	347 // : "=r"(sr), "=r"(cr), "=r"(ctr), "=r"(cpr)
d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	348 // );
d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	349
d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	350
d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	351 // diag_printf("Status %08x ", sr );
d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	352 // diag_printf("Cause %08x ", cr );
d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	353 // diag_printf("Counter %08x ", ctr );
d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	354 // diag_printf("Compare %08x\n", cpr);
d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	355
d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	356 #if 0
0 3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	357 asm volatile (
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	358 "mfc0 %0,$12;"
6 d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	359 "nop; nop; nop;"
d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	360 : "=r"(sr)
d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	361 );
d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	362 diag_write_string("Status "); diag_write_hex( sr );
d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	363
d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	364 asm volatile (
d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	365 "mfc0 %0,$13;"
d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	366 "nop; nop; nop;"
d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	367 : "=r"(cr)
d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	368 );
d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	369 diag_write_string(" Cause "); diag_write_hex( cr );
d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	370
d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	371 asm volatile (
d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	372 "mfc0 %0,$9;"
d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	373 "nop; nop; nop;"
d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	374 : "=r"(ctr)
d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	375 );
d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	376 diag_write_string(" Counter "); diag_write_hex( ctr );
d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	377
d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	378 asm volatile (
d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	379 "mfc0 %0,$11;"
d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	380 "nop; nop; nop;"
d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	381 : "=r"(cpr)
d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	382 );
d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	383 diag_write_string(" Compare "); diag_write_hex( cpr );
d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	384 diag_write_string( "\n" );
d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	385
d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	386 #endif
d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	387 #if 1
d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	388 asm volatile (
d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	389 "mfc0 %0,$12;"
d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	390 "nop; nop; nop;"
d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	391 : "=r"(sr)
0 3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	392 );
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	393
6 d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	394 asm volatile (
d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	395 "mfc0 %0,$13;"
d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	396 "nop; nop; nop;"
d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	397 : "=r"(cr)
d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	398 );
d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	399
d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	400 CYG_INSTRUMENT_USER( 1, sr, cr );
0 3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	401
6 d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	402 asm volatile (
d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	403 "mfc0 %0,$9;"
d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	404 "nop; nop; nop;"
d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	405 : "=r"(ctr)
d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	406 );
d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	407
d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	408 asm volatile (
d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	409 "mfc0 %0,$11;"
d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	410 "nop; nop; nop;"
d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	411 : "=r"(cpr)
d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	412 );
d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	413
d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	414 CYG_INSTRUMENT_USER( 2, ctr, cpr );
d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	415 #endif
d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	416
0 3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	417 // if( count == 4 )
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	418 // {
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	419 // HAL_ENABLE_INTERRUPTS();
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	420 // }
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	421
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	422 // if( count >= 10 )
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	423 // for(;;);
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	424 }
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	425 #endif
76 435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: 66 diff changeset	426 #if 0
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: 66 diff changeset	427 {
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: 66 diff changeset	428 static CYG_WORD32 istat[3] = { 0xffffffff,0xffffffff,0xffffffff };
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: 66 diff changeset	429 int i;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: 66 diff changeset	430 for( i = 0; i < 3; i++ )
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: 66 diff changeset	431 {
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: 66 diff changeset	432 CYG_WORD32 reg, sr;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: 66 diff changeset	433 HAL_READ_UINT32( CYGHWR_HAL_MIPS_VRC4373_INTC_STAT0 + i * CYGHWR_HAL_MIPS_VRC4373_INTC_MASK_OFF, reg );
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: 66 diff changeset	434 if( reg != istat[i] )
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: 66 diff changeset	435 {
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: 66 diff changeset	436 hal_diag_ai_write_char('~');
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: 66 diff changeset	437 hal_diag_ai_write_char('0'+i);
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: 66 diff changeset	438 hal_diag_ai_write_hex8( reg );
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: 66 diff changeset	439 istat[i] = reg;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: 66 diff changeset	440 HAL_READ_UINT32( CYGHWR_HAL_MIPS_VRC4373_INTC_MASK0 + i * CYGHWR_HAL_MIPS_VRC4373_INTC_MASK_OFF, reg );
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: 66 diff changeset	441 hal_diag_ai_write_char('.');
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: 66 diff changeset	442 hal_diag_ai_write_hex8( reg );
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: 66 diff changeset	443 #if 0
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: 66 diff changeset	444 asm volatile (
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: 66 diff changeset	445 "mfc0 %0,$12;"
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: 66 diff changeset	446 "nop; nop; nop;"
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: 66 diff changeset	447 : "=r"(sr)
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: 66 diff changeset	448 );
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: 66 diff changeset	449 hal_diag_ai_write_char('.');
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: 66 diff changeset	450 hal_diag_ai_write_hex8( sr );
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: 66 diff changeset	451 #endif
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: 66 diff changeset	452 }
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: 66 diff changeset	453 }
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: 66 diff changeset	454 }
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: 66 diff changeset	455 {
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: 66 diff changeset	456 static CYG_WORD32 old_pins = 0;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: 66 diff changeset	457 CYG_WORD32 reg;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: 66 diff changeset	458 HAL_READ_UINT32( CYGHWR_HAL_MIPS_VRC4373_INTC_PINS, reg );
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: 66 diff changeset	459 if( reg != old_pins )
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: 66 diff changeset	460 {
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: 66 diff changeset	461 hal_diag_ai_write_char('%');
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: 66 diff changeset	462 hal_diag_ai_write_hex8( reg );
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: 66 diff changeset	463 old_pins = reg;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: 66 diff changeset	464 }
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: 66 diff changeset	465 }
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: 66 diff changeset	466 #endif
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: 66 diff changeset	467 #if 0 //def CYGPKG_HAL_MIPS_VR4300_VRC4373
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: 66 diff changeset	468
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: 66 diff changeset	469 // Wiggle one of the leds to show we are running
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: 66 diff changeset	470
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: 66 diff changeset	471 if( (count % 50000 ) == 0 )
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: 66 diff changeset	472 {
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: 66 diff changeset	473 cyg_uint8 lr;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: 66 diff changeset	474 { int i; for( i = 0; i < 200; i++ ); }
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: 66 diff changeset	475 HAL_READ_UINT8( 0xc2000008, lr );
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: 66 diff changeset	476 lr ^= 2;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: 66 diff changeset	477 { int i; for( i = 0; i < 200; i++ ); }
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: 66 diff changeset	478 HAL_WRITE_UINT8( 0xc2000008, lr );
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: 66 diff changeset	479
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: 66 diff changeset	480 }
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: 66 diff changeset	481 #endif
0 3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	482 }
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	483
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: 0 diff changeset	484 /------------------------------------------------------------------------/
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: 0 diff changeset	485 /* End of hal_misc.c */

Mercurial > ecos

annotate packages/hal/mips/arch/current/src/hal_misc.c @ 101:c37d3a9e1b28 ecos-sw-2000-06-16