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

annotate packages/hal/mips/arch/current/src/hal_misc.c @ 198:ea3f0bd33a73

Merge from eCos master repository on 2001-12-07-11:40:47-GMT

author	jlarmour
date	Fri, 07 Dec 2001 14:15:03 +0000
parents	9b55e9c69693
children	8147f1c99f15

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
126 518f42066aba Merge from eCos master repository on 2000-09-19-06:25:26-BST jlarmour parents: 101 diff changeset	51 #define CYGARC_HAL_COMMON_EXPORT_CPU_MACROS
0 3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	52 #include <cyg/hal/hal_arch.h> // architectural definitions
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	53
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	54 #include <cyg/hal/hal_intr.h> // Interrupt handling
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	55
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	56 #include <cyg/hal/hal_cache.h> // Cache handling
165 d63db767121d Merge from eCos master repository on 2001-06-29-06:43:03-BST jlarmour parents: 154 diff changeset	57 #include <cyg/hal/hal_if.h> // hal_ctrlc_isr()
126 518f42066aba Merge from eCos master repository on 2000-09-19-06:25:26-BST jlarmour parents: 101 diff changeset	58 #include <cyg/hal/mips-regs.h> // FPU cause register definitions
518f42066aba Merge from eCos master repository on 2000-09-19-06:25:26-BST jlarmour parents: 101 diff changeset	59
198 ea3f0bd33a73 Merge from eCos master repository on 2001-12-07-11:40:47-GMT jlarmour parents: 196 diff changeset	60 #include CYGHWR_MEMORY_LAYOUT_H
ea3f0bd33a73 Merge from eCos master repository on 2001-12-07-11:40:47-GMT jlarmour parents: 196 diff changeset	61
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: 0 diff changeset	62 /------------------------------------------------------------------------/
18 7253dcc42a09 Merge from eCos master repository on 1999-06-25-15:31:50-BST jlarmour parents: 16 diff changeset	63 /* 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	64
7253dcc42a09 Merge from eCos master repository on 1999-06-25-15:31:50-BST jlarmour parents: 16 diff changeset	65 #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	66
7253dcc42a09 Merge from eCos master repository on 1999-06-25-15:31:50-BST jlarmour parents: 16 diff changeset	67 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	68
7253dcc42a09 Merge from eCos master repository on 1999-06-25-15:31:50-BST jlarmour parents: 16 diff changeset	69 #endif
7253dcc42a09 Merge from eCos master repository on 1999-06-25-15:31:50-BST jlarmour parents: 16 diff changeset	70
7253dcc42a09 Merge from eCos master repository on 1999-06-25-15:31:50-BST jlarmour parents: 16 diff changeset	71 /------------------------------------------------------------------------/
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: 0 diff changeset	72 /* First level C exception handler. */
0 3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	73
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	74 externC void __handle_exception (void);
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	75
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	76 externC HAL_SavedRegisters *_hal_registers;
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	77
130 eb9fd8c04db3 Merge from eCos master repository on 2000-10-23-17:01:37-BST jlarmour parents: 126 diff changeset	78 externC void* volatile __mem_fault_handler;
36 e97d78785e2d Merge from eCos master repository on 1999-09-12-15:40:34-BST jlarmour parents: 26 diff changeset	79
26 4741a3c3496a Merge from eCos master repository on 1999-07-23-05:47:06-BST jlarmour parents: 18 diff changeset	80 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	81
38 e7ba79f6d3a8 Merge from eCos master repository on 1999-09-23-20:10:25-BST jlarmour parents: 36 diff changeset	82 externC cyg_uint32 cyg_hal_exception_handler(HAL_SavedRegisters *regs)
0 3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	83 {
126 518f42066aba Merge from eCos master repository on 2000-09-19-06:25:26-BST jlarmour parents: 101 diff changeset	84 int vec = regs->vector>>2;
26 4741a3c3496a Merge from eCos master repository on 1999-07-23-05:47:06-BST jlarmour parents: 18 diff changeset	85
126 518f42066aba Merge from eCos master repository on 2000-09-19-06:25:26-BST jlarmour parents: 101 diff changeset	86 #if defined(CYGHWR_HAL_MIPS_FPU)
518f42066aba Merge from eCos master repository on 2000-09-19-06:25:26-BST jlarmour parents: 101 diff changeset	87 // Special handling of FPU exceptions
518f42066aba Merge from eCos master repository on 2000-09-19-06:25:26-BST jlarmour parents: 101 diff changeset	88 if (CYGNUM_HAL_VECTOR_FPE == vec) {
518f42066aba Merge from eCos master repository on 2000-09-19-06:25:26-BST jlarmour parents: 101 diff changeset	89
518f42066aba Merge from eCos master repository on 2000-09-19-06:25:26-BST jlarmour parents: 101 diff changeset	90 #if defined(CYGSEM_HAL_MIPS_EMULATE_UNIMPLEMENTED_FPU_OPS)
518f42066aba Merge from eCos master repository on 2000-09-19-06:25:26-BST jlarmour parents: 101 diff changeset	91 // We may be required to emulate certain unimplemented Floating Point
518f42066aba Merge from eCos master repository on 2000-09-19-06:25:26-BST jlarmour parents: 101 diff changeset	92 // operations
26 4741a3c3496a Merge from eCos master repository on 1999-07-23-05:47:06-BST jlarmour parents: 18 diff changeset	93
4741a3c3496a Merge from eCos master repository on 1999-07-23-05:47:06-BST jlarmour parents: 18 diff changeset	94 // 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	95 // 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	96
4741a3c3496a Merge from eCos master repository on 1999-07-23-05:47:06-BST jlarmour parents: 18 diff changeset	97 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	98 return 0;
126 518f42066aba Merge from eCos master repository on 2000-09-19-06:25:26-BST jlarmour parents: 101 diff changeset	99 #endif
518f42066aba Merge from eCos master repository on 2000-09-19-06:25:26-BST jlarmour parents: 101 diff changeset	100
518f42066aba Merge from eCos master repository on 2000-09-19-06:25:26-BST jlarmour parents: 101 diff changeset	101 // Find the cause of the FPU exception, clear the flag and use
518f42066aba Merge from eCos master repository on 2000-09-19-06:25:26-BST jlarmour parents: 101 diff changeset	102 // the decoded vector number.
518f42066aba Merge from eCos master repository on 2000-09-19-06:25:26-BST jlarmour parents: 101 diff changeset	103 {
518f42066aba Merge from eCos master repository on 2000-09-19-06:25:26-BST jlarmour parents: 101 diff changeset	104 cyg_uint32 cause = regs->fcr31;
518f42066aba Merge from eCos master repository on 2000-09-19-06:25:26-BST jlarmour parents: 101 diff changeset	105
518f42066aba Merge from eCos master repository on 2000-09-19-06:25:26-BST jlarmour parents: 101 diff changeset	106 if (cause & FCR31_CAUSE_I) {
518f42066aba Merge from eCos master repository on 2000-09-19-06:25:26-BST jlarmour parents: 101 diff changeset	107 vec = CYGNUM_HAL_EXCEPTION_FPU_INEXACT;
518f42066aba Merge from eCos master repository on 2000-09-19-06:25:26-BST jlarmour parents: 101 diff changeset	108 cause &= ~(FCR31_FLAGS_I \| FCR31_CAUSE_I);
518f42066aba Merge from eCos master repository on 2000-09-19-06:25:26-BST jlarmour parents: 101 diff changeset	109 } else if (cause & FCR31_CAUSE_U) {
518f42066aba Merge from eCos master repository on 2000-09-19-06:25:26-BST jlarmour parents: 101 diff changeset	110 vec = CYGNUM_HAL_EXCEPTION_FPU_UNDERFLOW;
518f42066aba Merge from eCos master repository on 2000-09-19-06:25:26-BST jlarmour parents: 101 diff changeset	111 cause &= ~(FCR31_FLAGS_U \| FCR31_CAUSE_U);
518f42066aba Merge from eCos master repository on 2000-09-19-06:25:26-BST jlarmour parents: 101 diff changeset	112 } else if (cause & FCR31_CAUSE_O) {
518f42066aba Merge from eCos master repository on 2000-09-19-06:25:26-BST jlarmour parents: 101 diff changeset	113 vec = CYGNUM_HAL_EXCEPTION_FPU_OVERFLOW;
518f42066aba Merge from eCos master repository on 2000-09-19-06:25:26-BST jlarmour parents: 101 diff changeset	114 cause &= ~(FCR31_FLAGS_O \| FCR31_CAUSE_O);
518f42066aba Merge from eCos master repository on 2000-09-19-06:25:26-BST jlarmour parents: 101 diff changeset	115 } else if (cause & FCR31_CAUSE_Z) {
518f42066aba Merge from eCos master repository on 2000-09-19-06:25:26-BST jlarmour parents: 101 diff changeset	116 vec = CYGNUM_HAL_EXCEPTION_FPU_DIV_BY_ZERO;
518f42066aba Merge from eCos master repository on 2000-09-19-06:25:26-BST jlarmour parents: 101 diff changeset	117 cause &= ~(FCR31_FLAGS_Z \| FCR31_CAUSE_Z);
518f42066aba Merge from eCos master repository on 2000-09-19-06:25:26-BST jlarmour parents: 101 diff changeset	118 } else if (cause & FCR31_CAUSE_V) {
518f42066aba Merge from eCos master repository on 2000-09-19-06:25:26-BST jlarmour parents: 101 diff changeset	119 vec = CYGNUM_HAL_EXCEPTION_FPU_INVALID;
518f42066aba Merge from eCos master repository on 2000-09-19-06:25:26-BST jlarmour parents: 101 diff changeset	120 cause &= ~(FCR31_FLAGS_V \| FCR31_CAUSE_V);
518f42066aba Merge from eCos master repository on 2000-09-19-06:25:26-BST jlarmour parents: 101 diff changeset	121 }
518f42066aba Merge from eCos master repository on 2000-09-19-06:25:26-BST jlarmour parents: 101 diff changeset	122 regs->fcr31 = cause;
518f42066aba Merge from eCos master repository on 2000-09-19-06:25:26-BST jlarmour parents: 101 diff changeset	123
518f42066aba Merge from eCos master repository on 2000-09-19-06:25:26-BST jlarmour parents: 101 diff changeset	124 #if 1
518f42066aba Merge from eCos master repository on 2000-09-19-06:25:26-BST jlarmour parents: 101 diff changeset	125 // Update the FPU status register with the new
518f42066aba Merge from eCos master repository on 2000-09-19-06:25:26-BST jlarmour parents: 101 diff changeset	126 // setting. This is a workaround for the signal2 test
518f42066aba Merge from eCos master repository on 2000-09-19-06:25:26-BST jlarmour parents: 101 diff changeset	127 // which does a longjump in the exception handler and thus
518f42066aba Merge from eCos master repository on 2000-09-19-06:25:26-BST jlarmour parents: 101 diff changeset	128 // never gets around to executing the register restore
518f42066aba Merge from eCos master repository on 2000-09-19-06:25:26-BST jlarmour parents: 101 diff changeset	129 // code.
518f42066aba Merge from eCos master repository on 2000-09-19-06:25:26-BST jlarmour parents: 101 diff changeset	130 asm ("ctc1 %0,$31" : : "r" (cause));
518f42066aba Merge from eCos master repository on 2000-09-19-06:25:26-BST jlarmour parents: 101 diff changeset	131 #endif
518f42066aba Merge from eCos master repository on 2000-09-19-06:25:26-BST jlarmour parents: 101 diff changeset	132 }
26 4741a3c3496a Merge from eCos master repository on 1999-07-23-05:47:06-BST jlarmour parents: 18 diff changeset	133 }
126 518f42066aba Merge from eCos master repository on 2000-09-19-06:25:26-BST jlarmour parents: 101 diff changeset	134 #endif // CYGHWR_HAL_MIPS_FPU
518f42066aba Merge from eCos master repository on 2000-09-19-06:25:26-BST jlarmour parents: 101 diff changeset	135
26 4741a3c3496a Merge from eCos master repository on 1999-07-23-05:47:06-BST jlarmour parents: 18 diff changeset	136
0 3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	137 #if defined(CYGDBG_HAL_DEBUG_GDB_INCLUDE_STUBS)
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	138
36 e97d78785e2d Merge from eCos master repository on 1999-09-12-15:40:34-BST jlarmour parents: 26 diff changeset	139 // 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	140 // 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	141 if (__mem_fault_handler) {
194 feb0fcf83327 Merge from eCos master repository on 2001-10-26-06:43:03-BST jlarmour parents: 184 diff changeset	142 regs->pc = (CYG_HAL_MIPS_REG)(signed long)__mem_fault_handler;
38 e7ba79f6d3a8 Merge from eCos master repository on 1999-09-23-20:10:25-BST jlarmour parents: 36 diff changeset	143 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	144 }
e97d78785e2d Merge from eCos master repository on 1999-09-12-15:40:34-BST jlarmour parents: 26 diff changeset	145
0 3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	146 // Set the pointer to the registers of the current exception
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	147 // context. At entry the GDB stub will expand the
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	148 // HAL_SavedRegisters structure into a (bigger) register array.
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	149 _hal_registers = regs;
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	150 __handle_exception();
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	151
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	152 #elif defined(CYGFUN_HAL_COMMON_KERNEL_SUPPORT) && defined(CYGPKG_HAL_EXCEPTIONS)
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	153
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	154 // We should decode the vector and pass a more appropriate
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	155 // value as the second argument. For now we simply pass a
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	156 // pointer to the saved registers. We should also divert
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	157 // breakpoint and other debug vectors into the debug stubs.
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	158
126 518f42066aba Merge from eCos master repository on 2000-09-19-06:25:26-BST jlarmour parents: 101 diff changeset	159 cyg_hal_deliver_exception( vec, (CYG_ADDRWORD)regs );
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 #else
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	162
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	163 CYG_FAIL("Exception!!!");
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	164
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	165 #endif
38 e7ba79f6d3a8 Merge from eCos master repository on 1999-09-23-20:10:25-BST jlarmour parents: 36 diff changeset	166 return 0;
0 3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	167 }
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	168
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: 0 diff changeset	169 /------------------------------------------------------------------------/
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: 0 diff changeset	170 /* default ISR */
0 3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	171
101 c37d3a9e1b28 Merge from eCos master repository on 2000-06-16-07:47:03-BST jlarmour parents: 76 diff changeset	172 #ifndef CYGSEM_HAL_VIRTUAL_VECTOR_SUPPORT
0 3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	173 externC cyg_uint32 hal_default_isr(CYG_ADDRWORD vector, CYG_ADDRWORD data)
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	174 {
50 a0774359f013 Merge from eCos master repository on 1999-11-02-17:02:15-GMT jlarmour parents: 38 diff changeset	175 #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	176 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	177 defined(HAL_CTRLC_ISR)
d3fbcdfa1b2f Merge from eCos master repository on 1999-05-29-00:13:11-BST jlarmour parents: 6 diff changeset	178
18 7253dcc42a09 Merge from eCos master repository on 1999-06-25-15:31:50-BST jlarmour parents: 16 diff changeset	179 #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	180 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	181 #endif
10 d3fbcdfa1b2f Merge from eCos master repository on 1999-05-29-00:13:11-BST jlarmour parents: 6 diff changeset	182 {
d3fbcdfa1b2f Merge from eCos master repository on 1999-05-29-00:13:11-BST jlarmour parents: 6 diff changeset	183 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	184 if( result != 0 ) return result;
d3fbcdfa1b2f Merge from eCos master repository on 1999-05-29-00:13:11-BST jlarmour parents: 6 diff changeset	185 }
d3fbcdfa1b2f Merge from eCos master repository on 1999-05-29-00:13:11-BST jlarmour parents: 6 diff changeset	186
62 7a6ac9edc838 Merge from eCos master repository on 2000-01-24-19:43:49-GMT jlarmour parents: 50 diff changeset	187 #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	188 #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	189 {
e7ba79f6d3a8 Merge from eCos master repository on 1999-09-23-20:10:25-BST jlarmour parents: 36 diff changeset	190 cyg_uint32 ret;
e7ba79f6d3a8 Merge from eCos master repository on 1999-09-23-20:10:25-BST jlarmour parents: 36 diff changeset	191 /* 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	192 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	193 if (ret<=0)
e7ba79f6d3a8 Merge from eCos master repository on 1999-09-23-20:10:25-BST jlarmour parents: 36 diff changeset	194 return ret;
e7ba79f6d3a8 Merge from eCos master repository on 1999-09-23-20:10:25-BST jlarmour parents: 36 diff changeset	195 }
e7ba79f6d3a8 Merge from eCos master repository on 1999-09-23-20:10:25-BST jlarmour parents: 36 diff changeset	196 #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	197 #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	198 #endif
d3fbcdfa1b2f Merge from eCos master repository on 1999-05-29-00:13:11-BST jlarmour parents: 6 diff changeset	199
0 3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	200 CYG_TRACE1(true, "Interrupt: %d", vector);
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	201 CYG_FAIL("Spurious Interrupt!!!");
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	202 return 0;
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	203 }
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	204
101 c37d3a9e1b28 Merge from eCos master repository on 2000-06-16-07:47:03-BST jlarmour parents: 76 diff changeset	205 #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	206
c37d3a9e1b28 Merge from eCos master repository on 2000-06-16-07:47:03-BST jlarmour parents: 76 diff changeset	207 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	208 {
c37d3a9e1b28 Merge from eCos master repository on 2000-06-16-07:47:03-BST jlarmour parents: 76 diff changeset	209 #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	210 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	211 defined(HAL_CTRLC_ISR)
c37d3a9e1b28 Merge from eCos master repository on 2000-06-16-07:47:03-BST jlarmour parents: 76 diff changeset	212
c37d3a9e1b28 Merge from eCos master repository on 2000-06-16-07:47:03-BST jlarmour parents: 76 diff changeset	213 #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	214 #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	215 {
c37d3a9e1b28 Merge from eCos master repository on 2000-06-16-07:47:03-BST jlarmour parents: 76 diff changeset	216 cyg_uint32 ret;
c37d3a9e1b28 Merge from eCos master repository on 2000-06-16-07:47:03-BST jlarmour parents: 76 diff changeset	217 /* 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	218 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	219 if (ret<=0)
c37d3a9e1b28 Merge from eCos master repository on 2000-06-16-07:47:03-BST jlarmour parents: 76 diff changeset	220 return ret;
c37d3a9e1b28 Merge from eCos master repository on 2000-06-16-07:47:03-BST jlarmour parents: 76 diff changeset	221 }
c37d3a9e1b28 Merge from eCos master repository on 2000-06-16-07:47:03-BST jlarmour parents: 76 diff changeset	222 #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	223 #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	224 #endif
c37d3a9e1b28 Merge from eCos master repository on 2000-06-16-07:47:03-BST jlarmour parents: 76 diff changeset	225
153 5e8f3b328bb3 Merge from eCos master repository on 2001-02-19-15:48:12-GMT jlarmour parents: 143 diff changeset	226 #ifdef CYGPKG_REDBOOT
5e8f3b328bb3 Merge from eCos master repository on 2001-02-19-15:48:12-GMT jlarmour parents: 143 diff changeset	227 hal_ctrlc_isr( vector, data );
5e8f3b328bb3 Merge from eCos master repository on 2001-02-19-15:48:12-GMT jlarmour parents: 143 diff changeset	228 #endif
5e8f3b328bb3 Merge from eCos master repository on 2001-02-19-15:48:12-GMT jlarmour parents: 143 diff changeset	229
101 c37d3a9e1b28 Merge from eCos master repository on 2000-06-16-07:47:03-BST jlarmour parents: 76 diff changeset	230 return 0;
c37d3a9e1b28 Merge from eCos master repository on 2000-06-16-07:47:03-BST jlarmour parents: 76 diff changeset	231 }
c37d3a9e1b28 Merge from eCos master repository on 2000-06-16-07:47:03-BST jlarmour parents: 76 diff changeset	232
c37d3a9e1b28 Merge from eCos master repository on 2000-06-16-07:47:03-BST jlarmour parents: 76 diff changeset	233 #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	234
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: 0 diff changeset	235 /------------------------------------------------------------------------/
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: 0 diff changeset	236 /* data copy and bss zero functions */
0 3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	237
16 4f2df4ab82c8 Merge from eCos master repository on 1999-06-18-15:25:04-BST jlarmour parents: 12 diff changeset	238 typedef void (CYG_SYM_ADDRESS)(void);
0 3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	239
16 4f2df4ab82c8 Merge from eCos master repository on 1999-06-18-15:25:04-BST jlarmour parents: 12 diff changeset	240 // 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	241 // 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	242 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	243 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	244 extern CYG_SYM_ADDRESS __rom_data_start;
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: 0 diff changeset	245
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: 0 diff changeset	246 #ifdef CYG_HAL_STARTUP_ROM
0 3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	247 void hal_copy_data(void)
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	248 {
16 4f2df4ab82c8 Merge from eCos master repository on 1999-06-18-15:25:04-BST jlarmour parents: 12 diff changeset	249 char p = (char )&__ram_data_start;
0 3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	250 char q = (char )&__rom_data_start;
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	251
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	252 while( p != (char *)&__ram_data_end )
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	253 p++ = q++;
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	254 }
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	255 #endif
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	256
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: 0 diff changeset	257 /------------------------------------------------------------------------/
0 3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	258
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: 0 diff changeset	259 #ifdef CYGSEM_HAL_STOP_CONSTRUCTORS_ON_FLAG
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: 0 diff changeset	260 cyg_bool cyg_hal_stop_constructors;
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: 0 diff changeset	261 #endif
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: 0 diff changeset	262
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: 0 diff changeset	263 typedef void (*pfunc) (void);
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: 0 diff changeset	264 extern pfunc __CTOR_LIST__[];
12 4cc3eff958ab Merge from eCos master repository on 1999-06-04-22:24:56-BST jlarmour parents: 10 diff changeset	265 extern pfunc __CTOR_END__[];
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 void
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: 0 diff changeset	268 cyg_hal_invoke_constructors(void)
0 3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	269 {
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: 0 diff changeset	270 #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	271 static pfunc *p = &__CTOR_END__[-1];
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: 0 diff changeset	272
12 4cc3eff958ab Merge from eCos master repository on 1999-06-04-22:24:56-BST jlarmour parents: 10 diff changeset	273 cyg_hal_stop_constructors = 0;
4cc3eff958ab Merge from eCos master repository on 1999-06-04-22:24:56-BST jlarmour parents: 10 diff changeset	274 for (; p >= __CTOR_LIST__; p--) {
4cc3eff958ab Merge from eCos master repository on 1999-06-04-22:24:56-BST jlarmour parents: 10 diff changeset	275 (*p) ();
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: 0 diff changeset	276 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	277 p--;
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: 0 diff changeset	278 break;
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: 0 diff changeset	279 }
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: 0 diff changeset	280 }
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: 0 diff changeset	281 #else
12 4cc3eff958ab Merge from eCos master repository on 1999-06-04-22:24:56-BST jlarmour parents: 10 diff changeset	282 pfunc *p;
4cc3eff958ab Merge from eCos master repository on 1999-06-04-22:24:56-BST jlarmour parents: 10 diff changeset	283
4cc3eff958ab Merge from eCos master repository on 1999-06-04-22:24:56-BST jlarmour parents: 10 diff changeset	284 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	285 (*p) ();
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: 0 diff changeset	286 #endif
0 3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	287
6 d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	288 } // cyg_hal_invoke_constructors()
0 3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	289
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: 0 diff changeset	290 /------------------------------------------------------------------------/
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: 0 diff changeset	291 /* Determine the index of the ls bit of the supplied mask. */
0 3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	292
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	293 cyg_uint32 hal_lsbit_index(cyg_uint32 mask)
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	294 {
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	295 cyg_uint32 n = mask;
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	296
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	297 static const signed char tab[64] =
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	298 { -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	299 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	300 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	301 0, 23, 0, 19, 29, 0, 22, 18, 28, 17, 16, 0
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	302 };
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	303
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	304 n &= ~(n-1UL);
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	305 n = (n<<16)-n;
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	306 n = (n<<6)+n;
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	307 n = (n<<4)+n;
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	308
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	309 return tab[n>>26];
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	310 }
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	311
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: 0 diff changeset	312 /------------------------------------------------------------------------/
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: 0 diff changeset	313 /* Determine the index of the ms bit of the supplied mask. */
0 3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	314
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	315 cyg_uint32 hal_msbit_index(cyg_uint32 mask)
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	316 {
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	317 cyg_uint32 x = mask;
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	318 cyg_uint32 w;
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 /* 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	321 x \|= x >> 16;
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	322 x \|= x >> 8;
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	323 x \|= x >> 4;
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	324 x \|= x >> 2;
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	325 x \|= x >> 1;
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	326
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	327 /* Phase 2: calculate number of "1" bits in the word */
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	328 w = (x & 0x55555555) + ((x >> 1) & 0x55555555);
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	329 w = (w & 0x33333333) + ((w >> 2) & 0x33333333);
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	330 w = w + (w >> 4);
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	331 w = (w & 0x000F000F) + ((w >> 8) & 0x000F000F);
196 9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: 194 diff changeset	332 return (cyg_uint32)((w + (w >> 16)) & 0xFF) - 1;
0 3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	333
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	334 }
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	335
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: 0 diff changeset	336 /------------------------------------------------------------------------/
143 6b5f480c6929 Merge from eCos master repository on 2000-12-08-02:09:36-GMT jlarmour parents: 130 diff changeset	337 /* Delay for some number of useconds. */
6b5f480c6929 Merge from eCos master repository on 2000-12-08-02:09:36-GMT jlarmour parents: 130 diff changeset	338 void
6b5f480c6929 Merge from eCos master repository on 2000-12-08-02:09:36-GMT jlarmour parents: 130 diff changeset	339 hal_delay_us(int us)
6b5f480c6929 Merge from eCos master repository on 2000-12-08-02:09:36-GMT jlarmour parents: 130 diff changeset	340 {
6b5f480c6929 Merge from eCos master repository on 2000-12-08-02:09:36-GMT jlarmour parents: 130 diff changeset	341 cyg_uint32 val1, val2;
6b5f480c6929 Merge from eCos master repository on 2000-12-08-02:09:36-GMT jlarmour parents: 130 diff changeset	342 int diff;
184 022f1e506033 Merge from eCos master repository on 2001-10-02-17:59:22-BST jlarmour parents: 165 diff changeset	343 long usticks;
143 6b5f480c6929 Merge from eCos master repository on 2000-12-08-02:09:36-GMT jlarmour parents: 130 diff changeset	344 long ticks;
184 022f1e506033 Merge from eCos master repository on 2001-10-02-17:59:22-BST jlarmour parents: 165 diff changeset	345
022f1e506033 Merge from eCos master repository on 2001-10-02-17:59:22-BST jlarmour parents: 165 diff changeset	346 // Calculate the number of counter register ticks per microsecond.
022f1e506033 Merge from eCos master repository on 2001-10-02-17:59:22-BST jlarmour parents: 165 diff changeset	347
022f1e506033 Merge from eCos master repository on 2001-10-02-17:59:22-BST jlarmour parents: 165 diff changeset	348 usticks = (CYGNUM_HAL_RTC_PERIOD * CYGNUM_HAL_RTC_DENOMINATOR) / 1000000;
022f1e506033 Merge from eCos master repository on 2001-10-02-17:59:22-BST jlarmour parents: 165 diff changeset	349
022f1e506033 Merge from eCos master repository on 2001-10-02-17:59:22-BST jlarmour parents: 165 diff changeset	350 // Make sure that the value is not zero. This will only happen if the
022f1e506033 Merge from eCos master repository on 2001-10-02-17:59:22-BST jlarmour parents: 165 diff changeset	351 // CPU is running at < 2MHz.
022f1e506033 Merge from eCos master repository on 2001-10-02-17:59:22-BST jlarmour parents: 165 diff changeset	352 if( usticks == 0 ) usticks = 1;
022f1e506033 Merge from eCos master repository on 2001-10-02-17:59:22-BST jlarmour parents: 165 diff changeset	353
022f1e506033 Merge from eCos master repository on 2001-10-02-17:59:22-BST jlarmour parents: 165 diff changeset	354 while( us > 0 )
022f1e506033 Merge from eCos master repository on 2001-10-02-17:59:22-BST jlarmour parents: 165 diff changeset	355 {
022f1e506033 Merge from eCos master repository on 2001-10-02-17:59:22-BST jlarmour parents: 165 diff changeset	356 int us1 = us;
143 6b5f480c6929 Merge from eCos master repository on 2000-12-08-02:09:36-GMT jlarmour parents: 130 diff changeset	357
184 022f1e506033 Merge from eCos master repository on 2001-10-02-17:59:22-BST jlarmour parents: 165 diff changeset	358 // Wait in bursts of less than 10000us to avoid any overflow
022f1e506033 Merge from eCos master repository on 2001-10-02-17:59:22-BST jlarmour parents: 165 diff changeset	359 // problems in the multiply.
022f1e506033 Merge from eCos master repository on 2001-10-02-17:59:22-BST jlarmour parents: 165 diff changeset	360 if( us1 > 10000 )
022f1e506033 Merge from eCos master repository on 2001-10-02-17:59:22-BST jlarmour parents: 165 diff changeset	361 us1 = 10000;
022f1e506033 Merge from eCos master repository on 2001-10-02-17:59:22-BST jlarmour parents: 165 diff changeset	362
022f1e506033 Merge from eCos master repository on 2001-10-02-17:59:22-BST jlarmour parents: 165 diff changeset	363 us -= us1;
022f1e506033 Merge from eCos master repository on 2001-10-02-17:59:22-BST jlarmour parents: 165 diff changeset	364
022f1e506033 Merge from eCos master repository on 2001-10-02-17:59:22-BST jlarmour parents: 165 diff changeset	365 ticks = us1 * usticks;
022f1e506033 Merge from eCos master repository on 2001-10-02-17:59:22-BST jlarmour parents: 165 diff changeset	366
022f1e506033 Merge from eCos master repository on 2001-10-02-17:59:22-BST jlarmour parents: 165 diff changeset	367 asm volatile("mfc0 %0,$9;" : "=r"(val1));
022f1e506033 Merge from eCos master repository on 2001-10-02-17:59:22-BST jlarmour parents: 165 diff changeset	368 while (ticks > 0) {
022f1e506033 Merge from eCos master repository on 2001-10-02-17:59:22-BST jlarmour parents: 165 diff changeset	369 do {
022f1e506033 Merge from eCos master repository on 2001-10-02-17:59:22-BST jlarmour parents: 165 diff changeset	370 asm volatile("mfc0 %0,$9;" : "=r"(val2));
022f1e506033 Merge from eCos master repository on 2001-10-02-17:59:22-BST jlarmour parents: 165 diff changeset	371 } while (val1 == val2);
022f1e506033 Merge from eCos master repository on 2001-10-02-17:59:22-BST jlarmour parents: 165 diff changeset	372 diff = val2 - val1;
022f1e506033 Merge from eCos master repository on 2001-10-02-17:59:22-BST jlarmour parents: 165 diff changeset	373 if (diff < 0) diff += CYGNUM_HAL_RTC_PERIOD;
022f1e506033 Merge from eCos master repository on 2001-10-02-17:59:22-BST jlarmour parents: 165 diff changeset	374 ticks -= diff;
022f1e506033 Merge from eCos master repository on 2001-10-02-17:59:22-BST jlarmour parents: 165 diff changeset	375 val1 = val2;
022f1e506033 Merge from eCos master repository on 2001-10-02-17:59:22-BST jlarmour parents: 165 diff changeset	376 }
143 6b5f480c6929 Merge from eCos master repository on 2000-12-08-02:09:36-GMT jlarmour parents: 130 diff changeset	377 }
6b5f480c6929 Merge from eCos master repository on 2000-12-08-02:09:36-GMT jlarmour parents: 130 diff changeset	378 }
6b5f480c6929 Merge from eCos master repository on 2000-12-08-02:09:36-GMT jlarmour parents: 130 diff changeset	379
6b5f480c6929 Merge from eCos master repository on 2000-12-08-02:09:36-GMT jlarmour parents: 130 diff changeset	380 /------------------------------------------------------------------------/
198 ea3f0bd33a73 Merge from eCos master repository on 2001-12-07-11:40:47-GMT jlarmour parents: 196 diff changeset	381
ea3f0bd33a73 Merge from eCos master repository on 2001-12-07-11:40:47-GMT jlarmour parents: 196 diff changeset	382 void hal_arch_program_new_stack(void *_func)
ea3f0bd33a73 Merge from eCos master repository on 2001-12-07-11:40:47-GMT jlarmour parents: 196 diff changeset	383 {
ea3f0bd33a73 Merge from eCos master repository on 2001-12-07-11:40:47-GMT jlarmour parents: 196 diff changeset	384 externC void hal_program_new_stack( void *func, CYG_ADDRESS addr);
ea3f0bd33a73 Merge from eCos master repository on 2001-12-07-11:40:47-GMT jlarmour parents: 196 diff changeset	385 hal_program_new_stack( (void *)_func,
ea3f0bd33a73 Merge from eCos master repository on 2001-12-07-11:40:47-GMT jlarmour parents: 196 diff changeset	386 (CYGMEM_REGION_ram + CYGMEM_REGION_ram_SIZE - sizeof(CYG_ADDRESS)) & ~15 );
ea3f0bd33a73 Merge from eCos master repository on 2001-12-07-11:40:47-GMT jlarmour parents: 196 diff changeset	387 }
ea3f0bd33a73 Merge from eCos master repository on 2001-12-07-11:40:47-GMT jlarmour parents: 196 diff changeset	388
ea3f0bd33a73 Merge from eCos master repository on 2001-12-07-11:40:47-GMT jlarmour parents: 196 diff changeset	389 /------------------------------------------------------------------------/
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: 0 diff changeset	390 /* Idle thread action */
0 3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	391
6 d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	392 #include <cyg/infra/diag.h>
d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	393
0 3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	394 void hal_idle_thread_action( cyg_uint32 count )
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	395 {
76 435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: 66 diff changeset	396 #if 0 //def CYGPKG_HAL_MIPS_SIM
0 3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	397 if( (count % 1000) == 0 )
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	398 {
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	399 // This code causes a fake interrupt.
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	400 asm volatile (
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	401 "xor $24,$24,$24;"
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	402 "mtc0 $24,$13;"
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	403 "lui $25,%%hi(1f);"
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	404 "ori $25,$25,%%lo(1f);"
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	405 "j other_vector;"
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	406 "nop;"
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	407 "1:"
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	408 :
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	409 :
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	410 : "t8", "t9"
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	411 );
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	412 }
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	413 #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	414 #if 0 //def CYGPKG_HAL_MIPS_TX39_JMR3904
0 3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	415
6 d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	416 if( (count % 100000 ) == 0 )
0 3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	417 {
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	418 // 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	419 cyg_uint32 sr = 0, cr = 0, ctr = 0, cpr = 0;
0 3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	420 // HAL_CLOCK_READ( &tval );
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	421 // HAL_READ_UINT32( 0xFFFFC000, isr );
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	422 // HAL_READ_UINT32( 0xFFFFC004, imr );
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	423 // HAL_READ_UINT32( 0xFFFFC01C, ilr );
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	424 // CYG_TRACE2(1, "Timer value, ISR ",tval, isr);
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	425 // CYG_TRACE2(1, "IMR ILR0 ", imr, ilr);
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	426
6 d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	427 // asm volatile (
d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	428 // "mfc0 %0,$12;"
d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	429 // "nop; nop; nop;"
d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	430 // "mfc0 %1,$13;"
d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	431 // "nop; nop; nop;"
d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	432 // "mfc0 %2,$9;"
d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	433 // "nop; nop; nop;"
d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	434 // "mfc0 %3,$11;"
d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	435 // "nop; nop; nop;"
d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	436 // : "=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	437 // );
d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	438
d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	439
d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	440 // diag_printf("Status %08x ", sr );
d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	441 // diag_printf("Cause %08x ", cr );
d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	442 // diag_printf("Counter %08x ", ctr );
d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	443 // 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	444
d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	445 #if 0
0 3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	446 asm volatile (
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	447 "mfc0 %0,$12;"
6 d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	448 "nop; nop; nop;"
d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	449 : "=r"(sr)
d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	450 );
d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	451 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	452
d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	453 asm volatile (
d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	454 "mfc0 %0,$13;"
d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	455 "nop; nop; nop;"
d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	456 : "=r"(cr)
d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	457 );
d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	458 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	459
d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	460 asm volatile (
d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	461 "mfc0 %0,$9;"
d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	462 "nop; nop; nop;"
d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	463 : "=r"(ctr)
d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	464 );
d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	465 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	466
d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	467 asm volatile (
d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	468 "mfc0 %0,$11;"
d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	469 "nop; nop; nop;"
d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	470 : "=r"(cpr)
d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	471 );
d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	472 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	473 diag_write_string( "\n" );
d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	474
d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	475 #endif
d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	476 #if 1
d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	477 asm volatile (
d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	478 "mfc0 %0,$12;"
d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	479 "nop; nop; nop;"
d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	480 : "=r"(sr)
0 3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	481 );
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	482
6 d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	483 asm volatile (
d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	484 "mfc0 %0,$13;"
d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	485 "nop; nop; nop;"
d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	486 : "=r"(cr)
d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	487 );
d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	488
d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	489 CYG_INSTRUMENT_USER( 1, sr, cr );
0 3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	490
6 d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	491 asm volatile (
d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	492 "mfc0 %0,$9;"
d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	493 "nop; nop; nop;"
d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	494 : "=r"(ctr)
d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	495 );
d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	496
d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	497 asm volatile (
d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	498 "mfc0 %0,$11;"
d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	499 "nop; nop; nop;"
d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	500 : "=r"(cpr)
d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	501 );
d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	502
d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	503 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	504 #endif
d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 2 diff changeset	505
0 3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	506 // if( count == 4 )
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	507 // {
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	508 // HAL_ENABLE_INTERRUPTS();
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	509 // }
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	510
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	511 // if( count >= 10 )
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	512 // for(;;);
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	513 }
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	514 #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	515 #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	516 {
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: 66 diff changeset	517 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	518 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	519 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	520 {
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: 66 diff changeset	521 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	522 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	523 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	524 {
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: 66 diff changeset	525 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	526 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	527 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	528 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	529 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	530 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	531 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	532 #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	533 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	534 "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	535 "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	536 : "=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	537 );
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: 66 diff changeset	538 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	539 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	540 #endif
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: 66 diff changeset	541 }
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: 66 diff changeset	542 }
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: 66 diff changeset	543 }
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: 66 diff changeset	544 {
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: 66 diff changeset	545 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	546 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	547 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	548 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	549 {
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: 66 diff changeset	550 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	551 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	552 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	553 }
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: 66 diff changeset	554 }
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: 66 diff changeset	555 #endif
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: 66 diff changeset	556 #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	557
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: 66 diff changeset	558 // 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	559
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: 66 diff changeset	560 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	561 {
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: 66 diff changeset	562 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	563 { 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	564 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	565 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	566 { 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	567 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	568
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: 66 diff changeset	569 }
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: 66 diff changeset	570 #endif
0 3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	571 }
3111d98ba7b3 Initial commit of eCos version 1.1 jlarmour parents: diff changeset	572
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: 0 diff changeset	573 /------------------------------------------------------------------------/
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: 0 diff changeset	574 /* End of hal_misc.c */

Mercurial > ecos

annotate packages/hal/mips/arch/current/src/hal_misc.c @ 198:ea3f0bd33a73