diff options
Diffstat (limited to 'cpukit/score/cpu/no_cpu')
| -rw-r--r-- | cpukit/score/cpu/no_cpu/asm.h | 98 | ||||
| -rw-r--r-- | cpukit/score/cpu/no_cpu/cpu.c | 132 | ||||
| -rw-r--r-- | cpukit/score/cpu/no_cpu/cpu_asm.c | 152 | ||||
| -rw-r--r-- | cpukit/score/cpu/no_cpu/rtems/asm.h | 98 |
4 files changed, 0 insertions, 480 deletions
diff --git a/cpukit/score/cpu/no_cpu/asm.h b/cpukit/score/cpu/no_cpu/asm.h deleted file mode 100644 index 69b1f0f825..0000000000 --- a/cpukit/score/cpu/no_cpu/asm.h +++ /dev/null @@ -1,98 +0,0 @@ -/* asm.h - * - * This include file attempts to address the problems - * caused by incompatible flavors of assemblers and - * toolsets. It primarily addresses variations in the - * use of leading underscores on symbols and the requirement - * that register names be preceded by a %. - * - * - * NOTE: The spacing in the use of these macros - * is critical to them working as advertised. - * - * COPYRIGHT: - * - * This file is based on similar code found in newlib available - * from ftp.cygnus.com. The file which was used had no copyright - * notice. This file is freely distributable as long as the source - * of the file is noted. This file is: - * - * COPYRIGHT (c) 1994. - * On-Line Applications Research Corporation (OAR). - * - * $Id$ - */ - -#ifndef __NO_CPU_ASM_h -#define __NO_CPU_ASM_h - -/* - * Indicate we are in an assembly file and get the basic CPU definitions. - */ - -#define ASM -#include <no_cpu.h> - -/* - * Recent versions of GNU cpp define variables which indicate the - * need for underscores and percents. If not using GNU cpp or - * the version does not support this, then you will obviously - * have to define these as appropriate. - */ - -#ifndef __USER_LABEL_PREFIX__ -#define __USER_LABEL_PREFIX__ _ -#endif - -#ifndef __REGISTER_PREFIX__ -#define __REGISTER_PREFIX__ -#endif - -/* ANSI concatenation macros. */ - -#define CONCAT1(a, b) CONCAT2(a, b) -#define CONCAT2(a, b) a ## b - -/* Use the right prefix for global labels. */ - -#define SYM(x) CONCAT1 (__USER_LABEL_PREFIX__, x) - -/* Use the right prefix for registers. */ - -#define REG(x) CONCAT1 (__REGISTER_PREFIX__, x) - -/* - * define macros for all of the registers on this CPU - * - * EXAMPLE: #define d0 REG (d0) - */ - -/* - * Define macros to handle section beginning and ends. - */ - - -#define BEGIN_CODE_DCL .text -#define END_CODE_DCL -#define BEGIN_DATA_DCL .data -#define END_DATA_DCL -#define BEGIN_CODE .text -#define END_CODE -#define BEGIN_DATA -#define END_DATA -#define BEGIN_BSS -#define END_BSS -#define END - -/* - * Following must be tailor for a particular flavor of the C compiler. - * They may need to put underscores in front of the symbols. - */ - -#define PUBLIC(sym) .globl SYM (sym) -#define EXTERN(sym) .globl SYM (sym) - -#endif -/* end of include file */ - - diff --git a/cpukit/score/cpu/no_cpu/cpu.c b/cpukit/score/cpu/no_cpu/cpu.c deleted file mode 100644 index f09d935c2d..0000000000 --- a/cpukit/score/cpu/no_cpu/cpu.c +++ /dev/null @@ -1,132 +0,0 @@ -/* - * XXX CPU Dependent Source - * - * - * COPYRIGHT (c) 1989, 1990, 1991, 1992, 1993, 1994. - * On-Line Applications Research Corporation (OAR). - * All rights assigned to U.S. Government, 1994. - * - * This material may be reproduced by or for the U.S. Government pursuant - * to the copyright license under the clause at DFARS 252.227-7013. This - * notice must appear in all copies of this file and its derivatives. - * - * $Id$ - */ - -#include <rtems/system.h> -#include <rtems/fatal.h> -#include <rtems/isr.h> -#include <rtems/wkspace.h> - -/* _CPU_Initialize - * - * This routine performs processor dependent initialization. - * - * INPUT PARAMETERS: - * cpu_table - CPU table to initialize - * thread_dispatch - address of disptaching routine - */ - - -void _CPU_Initialize( - rtems_cpu_table *cpu_table, - void (*thread_dispatch) /* ignored on this CPU */ -) -{ - if ( cpu_table == NULL ) - rtems_fatal_error_occurred( RTEMS_NOT_CONFIGURED ); - - /* - * The thread_dispatch argument is the address of the entry point - * for the routine called at the end of an ISR once it has been - * decided a context switch is necessary. On some compilation - * systems it is difficult to call a high-level language routine - * from assembly. This allows us to trick these systems. - * - * If you encounter this problem save the entry point in a CPU - * dependent variable. - */ - - _CPU_Thread_dispatch_pointer = thread_dispatch; - - /* - * XXX; If there is not an easy way to initialize the FP context - * during Context_Initialize, then it is usually easier to - * save an "uninitialized" FP context here and copy it to - * the task's during Context_Initialize. - */ - - /* XXX: FP context initialization support */ - - _CPU_Table = *cpu_table; -} - -/* _CPU_ISR_install_vector - * - * This kernel routine installs the RTEMS handler for the - * specified vector. - * - * Input parameters: - * vector - interrupt vector number - * old_handler - former ISR for this vector number - * new_handler - replacement ISR for this vector number - * - * Output parameters: NONE - * - */ - - -void _CPU_ISR_install_vector( - unsigned32 vector, - proc_ptr new_handler, - proc_ptr *old_handler -) -{ - *old_handler = _ISR_Vector_table[ vector ]; - - /* - * If the interrupt vector table is a table of pointer to isr entry - * points, then we need to install the appropriate RTEMS interrupt - * handler for this vector number. - */ - - /* - * We put the actual user ISR address in '_ISR_vector_table'. This will - * be used by the _ISR_Handler so the user gets control. - */ - - _ISR_Vector_table[ vector ] = new_handler; -} - -/*PAGE - * - * _CPU_Install_interrupt_stack - */ - -void _CPU_Install_interrupt_stack( void ) -{ -} - -/*PAGE - * - * _CPU_Internal_threads_Idle_thread_body - * - * NOTES: - * - * 1. This is the same as the regular CPU independent algorithm. - * - * 2. If you implement this using a "halt", "idle", or "shutdown" - * instruction, then don't forget to put it in an infinite loop. - * - * 3. Be warned. Some processors with onboard DMA have been known - * to stop the DMA if the CPU were put in IDLE mode. This might - * also be a problem with other on-chip peripherals. So use this - * hook with caution. - */ - -void _CPU_Internal_threads_Idle_thread_body( void ) -{ - - for( ; ; ) - /* insert your "halt" instruction here */ ; -} diff --git a/cpukit/score/cpu/no_cpu/cpu_asm.c b/cpukit/score/cpu/no_cpu/cpu_asm.c deleted file mode 100644 index 26246a93c2..0000000000 --- a/cpukit/score/cpu/no_cpu/cpu_asm.c +++ /dev/null @@ -1,152 +0,0 @@ -/* cpu_asm.c ===> cpu_asm.S or cpu_asm.s - * - * This file contains the basic algorithms for all assembly code used - * in an specific CPU port of RTEMS. These algorithms must be implemented - * in assembly language - * - * NOTE: This is supposed to be a .S or .s file NOT a C file. - * - * COPYRIGHT (c) 1989, 1990, 1991, 1992, 1993, 1994. - * On-Line Applications Research Corporation (OAR). - * All rights assigned to U.S. Government, 1994. - * - * This material may be reproduced by or for the U.S. Government pursuant - * to the copyright license under the clause at DFARS 252.227-7013. This - * notice must appear in all copies of this file and its derivatives. - * - * $Id$ - */ - -/* - * This is supposed to be an assembly file. This means that system.h - * and cpu.h should not be included in a "real" cpu_asm file. An - * implementation in assembly should include "cpu_asm.h> - */ - -#include <rtems/system.h> -#include <rtems/cpu.h> -/* #include "cpu_asm.h> */ - -/* - * _CPU_Context_save_fp_context - * - * This routine is responsible for saving the FP context - * at *fp_context_ptr. If the point to load the FP context - * from is changed then the pointer is modified by this routine. - * - * Sometimes a macro implementation of this is in cpu.h which dereferences - * the ** and a similarly named routine in this file is passed something - * like a (Context_Control_fp *). The general rule on making this decision - * is to avoid writing assembly language. - */ - -void _CPU_Context_save_fp( - void **fp_context_ptr -) -{ -} - -/* - * _CPU_Context_restore_fp_context - * - * This routine is responsible for restoring the FP context - * at *fp_context_ptr. If the point to load the FP context - * from is changed then the pointer is modified by this routine. - * - * Sometimes a macro implementation of this is in cpu.h which dereferences - * the ** and a similarly named routine in this file is passed something - * like a (Context_Control_fp *). The general rule on making this decision - * is to avoid writing assembly language. - */ - -void _CPU_Context_restore_fp( - void **fp_context_ptr -) -{ -} - -/* _CPU_Context_switch - * - * This routine performs a normal non-FP context switch. - */ - -void _CPU_Context_switch( - Context_Control *run, - Context_Control *heir -) -{ -} - -/* - * _CPU_Context_restore - * - * This routine is generallu used only to restart self in an - * efficient manner. It may simply be a label in _CPU_Context_switch. - * - * NOTE: May be unnecessary to reload some registers. - */ - -void _CPU_Context_restore( - Context_Control *new_context -) -{ -} - -/* void __ISR_Handler() - * - * This routine provides the RTEMS interrupt management. - * - */ - -void _ISR_Handler() -{ - /* - * This discussion ignores a lot of the ugly details in a real - * implementation such as saving enough registers/state to be - * able to do something real. Keep in mind that the goal is - * to invoke a user's ISR handler which is written in C and - * uses a certain set of registers. - * - * Also note that the exact order is to a large extent flexible. - * Hardware will dictate a sequence for a certain subset of - * _ISR_Handler while requirements for setting - */ - - /* - * At entry to "common" _ISR_Handler, the vector number must be - * available. On some CPUs the hardware puts either the vector - * number or the offset into the vector table for this ISR in a - * known place. If the hardware does not give us this information, - * then the assembly portion of RTEMS for this port will contain - * a set of distinct interrupt entry points which somehow place - * the vector number in a known place (which is safe if another - * interrupt nests this one) and branches to _ISR_Handler. - * - * save some or all context on stack - * may need to save some special interrupt information for exit - * - * #if ( CPU_HAS_SOFTWARE_INTERRUPT_STACK == TRUE ) - * if ( _ISR_Nest_level == 0 ) - * switch to software interrupt stack - * #endif - * - * _ISR_Nest_level++; - * - * _Thread_Dispatch_disable_level++; - * - * (*_ISR_Vector_table[ vector ])( vector ); - * - * if ( --__ISR_Nest_level == 0 ) { - * if ( _Context_Switch_necessary || _ISR_Signals_to_thread_executing ) - * call _Thread_Dispatch() or prepare to return to _ISR_Dispatch - * #if ( CPU_HAS_SOFTWARE_INTERRUPT_STACK == TRUE ) - * restore stack - * #endif - * } - * - * prepare to get out of interrupt - * return from interrupt - * - */ -} - diff --git a/cpukit/score/cpu/no_cpu/rtems/asm.h b/cpukit/score/cpu/no_cpu/rtems/asm.h deleted file mode 100644 index 69b1f0f825..0000000000 --- a/cpukit/score/cpu/no_cpu/rtems/asm.h +++ /dev/null @@ -1,98 +0,0 @@ -/* asm.h - * - * This include file attempts to address the problems - * caused by incompatible flavors of assemblers and - * toolsets. It primarily addresses variations in the - * use of leading underscores on symbols and the requirement - * that register names be preceded by a %. - * - * - * NOTE: The spacing in the use of these macros - * is critical to them working as advertised. - * - * COPYRIGHT: - * - * This file is based on similar code found in newlib available - * from ftp.cygnus.com. The file which was used had no copyright - * notice. This file is freely distributable as long as the source - * of the file is noted. This file is: - * - * COPYRIGHT (c) 1994. - * On-Line Applications Research Corporation (OAR). - * - * $Id$ - */ - -#ifndef __NO_CPU_ASM_h -#define __NO_CPU_ASM_h - -/* - * Indicate we are in an assembly file and get the basic CPU definitions. - */ - -#define ASM -#include <no_cpu.h> - -/* - * Recent versions of GNU cpp define variables which indicate the - * need for underscores and percents. If not using GNU cpp or - * the version does not support this, then you will obviously - * have to define these as appropriate. - */ - -#ifndef __USER_LABEL_PREFIX__ -#define __USER_LABEL_PREFIX__ _ -#endif - -#ifndef __REGISTER_PREFIX__ -#define __REGISTER_PREFIX__ -#endif - -/* ANSI concatenation macros. */ - -#define CONCAT1(a, b) CONCAT2(a, b) -#define CONCAT2(a, b) a ## b - -/* Use the right prefix for global labels. */ - -#define SYM(x) CONCAT1 (__USER_LABEL_PREFIX__, x) - -/* Use the right prefix for registers. */ - -#define REG(x) CONCAT1 (__REGISTER_PREFIX__, x) - -/* - * define macros for all of the registers on this CPU - * - * EXAMPLE: #define d0 REG (d0) - */ - -/* - * Define macros to handle section beginning and ends. - */ - - -#define BEGIN_CODE_DCL .text -#define END_CODE_DCL -#define BEGIN_DATA_DCL .data -#define END_DATA_DCL -#define BEGIN_CODE .text -#define END_CODE -#define BEGIN_DATA -#define END_DATA -#define BEGIN_BSS -#define END_BSS -#define END - -/* - * Following must be tailor for a particular flavor of the C compiler. - * They may need to put underscores in front of the symbols. - */ - -#define PUBLIC(sym) .globl SYM (sym) -#define EXTERN(sym) .globl SYM (sym) - -#endif -/* end of include file */ - - |