diff options
Diffstat (limited to 'cpukit/score/cpu/i386')
-rw-r--r-- | cpukit/score/cpu/i386/asm.h | 140 | ||||
-rw-r--r-- | cpukit/score/cpu/i386/cpu.c | 177 | ||||
-rw-r--r-- | cpukit/score/cpu/i386/rtems/asm.h | 140 |
3 files changed, 0 insertions, 457 deletions
diff --git a/cpukit/score/cpu/i386/asm.h b/cpukit/score/cpu/i386/asm.h deleted file mode 100644 index e317161043..0000000000 --- a/cpukit/score/cpu/i386/asm.h +++ /dev/null @@ -1,140 +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 __i386_ASM_h -#define __i386_ASM_h - -/* - * Indicate we are in an assembly file and get the basic CPU definitions. - */ - -#define ASM -#include <rtems/score/i386.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. - */ - -/* - * Go32 suffers the same bug as __REGISTER_PREFIX__ - */ - -#if __GO32__ -#undef __USER_LABEL_PREFIX__ -#define __USER_LABEL_PREFIX__ _ -#endif - -#ifndef __USER_LABEL_PREFIX__ -#define __USER_LABEL_PREFIX__ _ -#endif - -/* - * Looks like there is a bug in gcc 2.6.2 where this is not - * defined correctly when configured as i386-coff and - * i386-aout. - */ - -#undef __REGISTER_PREFIX__ -#define __REGISTER_PREFIX__ % - -/* -#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 eax REG (eax) -#define ebx REG (ebx) -#define ecx REG (ecx) -#define edx REG (edx) -#define esi REG (esi) -#define edi REG (edi) -#define esp REG (esp) -#define ebp REG (ebp) - -#define ax REG (ax) -#define bx REG (bx) -#define cx REG (cx) -#define dx REG (dx) -#define si REG (si) -#define di REG (di) -#define sp REG (sp) -#define bp REG (bp) - -#define ah REG (ah) -#define al REG (al) - -#define cs REG (cs) -#define ds REG (ds) -#define es REG (es) -#define fs REG (fs) -#define gs REG (gs) -#define ss REG (ss) - -/* - * 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/i386/cpu.c b/cpukit/score/cpu/i386/cpu.c deleted file mode 100644 index ad9c56e20a..0000000000 --- a/cpukit/score/cpu/i386/cpu.c +++ /dev/null @@ -1,177 +0,0 @@ -/* - * Intel i386 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/score/isr.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 */ -) -{ - register unsigned16 fp_status asm ("ax"); - register void *fp_context; - - _CPU_Table = *cpu_table; - - /* - * The following code saves a NULL i387 context which is given - * to each task at start and restart time. The following code - * is based upon that provided in the i386 Programmer's - * Manual and should work on any coprocessor greater than - * the i80287. - * - * NOTE: The NO RTEMS_WAIT form of the coprocessor instructions - * MUST be used in case there is not a coprocessor - * to wait for. - */ - - fp_status = 0xa5a5; - asm volatile( "fninit" ); - asm volatile( "fnstsw %0" : "=a" (fp_status) : "0" (fp_status) ); - - if ( fp_status == 0 ) { - - fp_context = &_CPU_Null_fp_context; - - asm volatile( "fsave (%0)" : "=r" (fp_context) - : "0" (fp_context) - ); - } -} - -/*PAGE - * - * _CPU_ISR_Get_level - */ - -unsigned32 _CPU_ISR_Get_level( void ) -{ - unsigned32 level; - - i386_get_interrupt_level( level ); - - return level; -} - -/*PAGE - * - * _CPU_ISR_install_raw_handler - */ - -#if __GO32__ -#include <go32.h> -#include <dpmi.h> -#endif /* __GO32__ */ - -void _CPU_ISR_install_raw_handler( - unsigned32 vector, - proc_ptr new_handler, - proc_ptr *old_handler -) -{ -#if __GO32__ - _go32_dpmi_seginfo handler_info; - - /* get the address of the old handler */ - _go32_dpmi_get_protected_mode_interrupt_vector( vector, &handler_info); - - /* Notice how we're failing to save the pm_segment portion of the */ - /* structure here? That means we might crash the system if we */ - /* try to restore the ISR. Can't fix this until i386_isr is */ - /* redefined. XXX [BHC]. */ - *old_handler = (proc_ptr *) handler_info.pm_offset; - - handler_info.pm_offset = (u_long) new_handler; - handler_info.pm_selector = _go32_my_cs(); - - /* install the IDT entry */ - _go32_dpmi_set_protected_mode_interrupt_vector( vector, &handler_info ); -#else - i386_IDT_slot idt; - unsigned32 handler; - - *old_handler = 0; /* XXX not supported */ - - handler = (unsigned32) new_handler; - - /* build the IDT entry */ - idt.offset_0_15 = handler & 0xffff; - idt.segment_selector = i386_get_cs(); - idt.reserved = 0x00; - idt.p_dpl = 0x8e; /* present, ISR */ - idt.offset_16_31 = handler >> 16; - - /* install the IDT entry */ - i386_Install_idt( - (unsigned32) &idt, - _CPU_Table.interrupt_table_segment, - (unsigned32) _CPU_Table.interrupt_table_offset + (8 * vector) - ); -#endif -} - -/*PAGE - * - * _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 _ISR_Handler_0(), _ISR_Handler_1(); - -#define PER_ISR_ENTRY \ - (((unsigned32) _ISR_Handler_1 - (unsigned32) _ISR_Handler_0)) - -#define _Interrupt_Handler_entry( _vector ) \ - (((unsigned32)_ISR_Handler_0) + ((_vector) * PER_ISR_ENTRY)) - -void _CPU_ISR_install_vector( - unsigned32 vector, - proc_ptr new_handler, - proc_ptr *old_handler -) -{ - proc_ptr ignored; - unsigned32 unique_handler; - - *old_handler = _ISR_Vector_table[ vector ]; - - /* calculate the unique entry point for this vector */ - unique_handler = _Interrupt_Handler_entry( vector ); - - _CPU_ISR_install_raw_handler( vector, (void *)unique_handler, &ignored ); - - _ISR_Vector_table[ vector ] = new_handler; -} diff --git a/cpukit/score/cpu/i386/rtems/asm.h b/cpukit/score/cpu/i386/rtems/asm.h deleted file mode 100644 index e317161043..0000000000 --- a/cpukit/score/cpu/i386/rtems/asm.h +++ /dev/null @@ -1,140 +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 __i386_ASM_h -#define __i386_ASM_h - -/* - * Indicate we are in an assembly file and get the basic CPU definitions. - */ - -#define ASM -#include <rtems/score/i386.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. - */ - -/* - * Go32 suffers the same bug as __REGISTER_PREFIX__ - */ - -#if __GO32__ -#undef __USER_LABEL_PREFIX__ -#define __USER_LABEL_PREFIX__ _ -#endif - -#ifndef __USER_LABEL_PREFIX__ -#define __USER_LABEL_PREFIX__ _ -#endif - -/* - * Looks like there is a bug in gcc 2.6.2 where this is not - * defined correctly when configured as i386-coff and - * i386-aout. - */ - -#undef __REGISTER_PREFIX__ -#define __REGISTER_PREFIX__ % - -/* -#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 eax REG (eax) -#define ebx REG (ebx) -#define ecx REG (ecx) -#define edx REG (edx) -#define esi REG (esi) -#define edi REG (edi) -#define esp REG (esp) -#define ebp REG (ebp) - -#define ax REG (ax) -#define bx REG (bx) -#define cx REG (cx) -#define dx REG (dx) -#define si REG (si) -#define di REG (di) -#define sp REG (sp) -#define bp REG (bp) - -#define ah REG (ah) -#define al REG (al) - -#define cs REG (cs) -#define ds REG (ds) -#define es REG (es) -#define fs REG (fs) -#define gs REG (gs) -#define ss REG (ss) - -/* - * 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 */ - - |