mirror of
git://sourceware.org/git/glibc.git
synced 2024-11-27 03:41:23 +08:00
Initial revision
This commit is contained in:
Roland McGrath
parent
bd1a0b2259
commit
cee6cb4fc2
76
sysdeps/standalone/i960/nindy960/console.c
Normal file
76
sysdeps/standalone/i960/nindy960/console.c
Normal file
@ -0,0 +1,76 @@
|
||||
/* Copyright (C) 1994 Free Software Foundation, Inc.
|
||||
Contributed by Joel Sherrill (jsherril@redstone-emh2.army.mil),
|
||||
On-Line Applications Research Corporation.
|
||||
|
||||
This file is part of the GNU C Library.
|
||||
|
||||
The GNU C Library is free software; you can redistribute it and/or
|
||||
modify it under the terms of the GNU Library General Public License as
|
||||
published by the Free Software Foundation; either version 2 of the
|
||||
License, or (at your option) any later version.
|
||||
|
||||
The GNU C Library is distributed in the hope that it will be useful,
|
||||
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
||||
Library General Public License for more details.
|
||||
|
||||
You should have received a copy of the GNU Library General Public
|
||||
License along with the GNU C Library; see the file COPYING.LIB. If
|
||||
not, write to the Free Software Foundation, Inc., 675 Mass Ave,
|
||||
Cambridge, MA 02139, USA. */
|
||||
|
||||
#include <ansidecl.h>
|
||||
#include <standalone.h>
|
||||
#include "__i960ca.h"
|
||||
|
||||
/* Console IO routines for a NINDY960 board. */
|
||||
|
||||
/*
|
||||
* NINDY_IO( ... )
|
||||
*
|
||||
* Interface to NINDY.
|
||||
*/
|
||||
|
||||
#define NINDY_INPUT 0
|
||||
#define NINDY_OUTPUT 1
|
||||
|
||||
void ___NINDY_IO_WRAPPER( void ) /* never called */
|
||||
{
|
||||
asm volatile ( " .text" );
|
||||
asm volatile ( " .align 4" );
|
||||
asm volatile ( " .globl _NINDY_IO" );
|
||||
asm volatile ( "_NINDY_IO:" );
|
||||
asm volatile ( " calls 0 /* call console routines */" );
|
||||
asm volatile ( " ret" );
|
||||
}
|
||||
|
||||
/***** !!!! HOW DO I EXFUN NINDY_IO? !!!! *****/
|
||||
|
||||
/* _Console_Putc
|
||||
|
||||
This routine transmits a character using NINDY. */
|
||||
|
||||
int
|
||||
DEFUN( _Console_Putc, (ch), char ch )
|
||||
{
|
||||
NINDY_IO( NINDY_OUTPUT, ch );
|
||||
return( 0 );
|
||||
}
|
||||
|
||||
/* _Console_Getc
|
||||
|
||||
This routine reads a character from NINDY and returns it. */
|
||||
|
||||
int
|
||||
DEFUN( _Console_Getc, (poll), int poll )
|
||||
{
|
||||
char ch;
|
||||
|
||||
if ( poll ) {
|
||||
/* I don't know how to poll with NINDY */
|
||||
return -1;
|
||||
} else {
|
||||
NINDY_IO( NINDY_INPUT, &ch );
|
||||
return ch;
|
||||
}
|
||||
}
|
||||
137
sysdeps/standalone/i960/start.S
Normal file
137
sysdeps/standalone/i960/start.S
Normal file
@ -0,0 +1,137 @@
|
||||
/* Copyright (C) 1994 Free Software Foundation, Inc.
|
||||
Contributed by Joel Sherrill (jsherril@redstone-emh2.army.mil),
|
||||
On-Line Applications Research Corporation.
|
||||
|
||||
This file is part of the GNU C Library.
|
||||
|
||||
The GNU C Library is free software; you can redistribute it and/or
|
||||
modify it under the terms of the GNU Library General Public License as
|
||||
published by the Free Software Foundation; either version 2 of the
|
||||
License, or (at your option) any later version.
|
||||
|
||||
The GNU C Library is distributed in the hope that it will be useful,
|
||||
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
||||
Library General Public License for more details.
|
||||
|
||||
You should have received a copy of the GNU Library General Public
|
||||
License along with the GNU C Library; see the file COPYING.LIB. If
|
||||
not, write to the Free Software Foundation, Inc., 675 Mass Ave,
|
||||
Cambridge, MA 02139, USA. */
|
||||
|
||||
/* entry.s
|
||||
*
|
||||
* This file contains the entry point for the application.
|
||||
* The name of this entry point is compiler dependent.
|
||||
* It jumps to the BSP which is responsible for performing
|
||||
* all initialization.
|
||||
*
|
||||
*/
|
||||
|
||||
.text
|
||||
.globl start # GNU960 default entry point
|
||||
|
||||
start:
|
||||
mov 3, r12
|
||||
modpc r12, r12, r12 # enable tracing/trace faults
|
||||
mov g5, g5 # NOP
|
||||
mov 0, g14 # initialize constant for C
|
||||
|
||||
/*
|
||||
* zero out uninitialized data area
|
||||
*/
|
||||
zerobss:
|
||||
lda _end, r4 /* find end of .bss */
|
||||
lda _bss_start, r5 /* find beginning of .bss */
|
||||
ldconst 0, r6
|
||||
|
||||
loop: st r6, (r5) /* to zero out uninitialized */
|
||||
addo 4, r5, r5 /* data area */
|
||||
cmpobl r5, r4, loop /* loop until _end reached */
|
||||
|
||||
|
||||
lda heap_memory, r12 /* tell C lib where heap is */
|
||||
st r12,___C_heap_start
|
||||
lda heap_size, r12 /* tell C lib how big heap is */
|
||||
st r12,___C_heap_size
|
||||
lda stack_memory,r12 /* set up stack pointer: */
|
||||
mov r12, sp
|
||||
mov 0, g14 /* initialize constant for C */
|
||||
|
||||
call init_frames
|
||||
ret /* return to monitor */
|
||||
|
||||
init_frames:
|
||||
ldconst 0x3b001000, g0
|
||||
ldconst 0x00009107, g1
|
||||
modac g1, g0, g0 /* set AC controls */
|
||||
|
||||
/*
|
||||
* Call application mainline.
|
||||
* Someday, real values of argc and argv will be set up.
|
||||
* For now, they are set to 0.
|
||||
*/
|
||||
|
||||
callx __Board_Initialize /* Initialize the board */
|
||||
|
||||
ldconst 0,g0
|
||||
ldconst 0,g1
|
||||
ldconst 0,g2
|
||||
callx ___libc_init /* initialize the library and */
|
||||
/* call main */
|
||||
/*
|
||||
* if we return from main, we have "fallen" off the end
|
||||
* of the program, therefore status is 0
|
||||
* so move 0 to g0 (exit parameter)
|
||||
*/
|
||||
|
||||
mov 0, g0
|
||||
callx ___exit
|
||||
ret
|
||||
|
||||
|
||||
/*
|
||||
* Data Declarations. Start with a macro which helps declare space.
|
||||
*/
|
||||
|
||||
#define DECLARE_SPACE(_name,_space,_align) \
|
||||
.globl _name ; \
|
||||
.align _align ; \
|
||||
.comm _name##,_space
|
||||
|
||||
#define DECLARE_LABEL(_name) \
|
||||
.globl _name ; \
|
||||
_name##:
|
||||
|
||||
#define DECLARE_PTR(_name) DECLARE_SPACE(_name,4,2)
|
||||
#define DECLARE_U32(_name) DECLARE_SPACE(_name,4,2)
|
||||
#define DECLARE_U16(_name) DECLARE_SPACE(_name,2,1)
|
||||
|
||||
/*
|
||||
* Require environment stuff
|
||||
*/
|
||||
|
||||
DECLARE_LABEL(_environ)
|
||||
DECLARE_PTR(environ)
|
||||
|
||||
DECLARE_LABEL(_errno)
|
||||
DECLARE_U32(errno)
|
||||
|
||||
/*
|
||||
* Stack Size and Space
|
||||
*/
|
||||
|
||||
.set stack_size, 0x20000
|
||||
|
||||
DECLARE_SPACE(stack_memory,stack_size,4)
|
||||
DECLARE_LABEL(stack_end)
|
||||
|
||||
/*
|
||||
* Heap Size and Space
|
||||
*/
|
||||
|
||||
.set heap_size, 0x20000
|
||||
|
||||
DECLARE_SPACE(heap_memory,heap_size,4)
|
||||
DECLARE_LABEL(heap_end)
|
||||
|
||||
Loading…
Reference in New Issue
Block a user