diff options
Diffstat (limited to 'sysdeps/standalone/i960/nindy960')
| -rw-r--r-- | sysdeps/standalone/i960/nindy960/Makefile | 23 | ||||
| -rw-r--r-- | sysdeps/standalone/i960/nindy960/_exit.c | 55 | ||||
| -rw-r--r-- | sysdeps/standalone/i960/nindy960/brdinit.c | 66 | ||||
| -rw-r--r-- | sysdeps/standalone/i960/nindy960/console.c | 76 |
4 files changed, 220 insertions, 0 deletions
diff --git a/sysdeps/standalone/i960/nindy960/Makefile b/sysdeps/standalone/i960/nindy960/Makefile new file mode 100644 index 0000000000..e6e65ea064 --- /dev/null +++ b/sysdeps/standalone/i960/nindy960/Makefile @@ -0,0 +1,23 @@ +# Copyright (C) 1993 Free Software Foundation, Inc. +# Contributed by Joel Sherrill (jsherril@redstone-emh2.army.mil), +# On-Line Applications Research Corporation. + +# 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. + + +# The nindy960 support has only been tested on the following boards: +# +# + Cyclone CVME961 VMEbus single board computer. diff --git a/sysdeps/standalone/i960/nindy960/_exit.c b/sysdeps/standalone/i960/nindy960/_exit.c new file mode 100644 index 0000000000..33553a7a2c --- /dev/null +++ b/sysdeps/standalone/i960/nindy960/_exit.c @@ -0,0 +1,55 @@ +/* Copyright (C) 1991 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 <unistd.h> +#include <stdlib.h> + +/* The function `_exit' should take a status argument and simply + terminate program execution, using the low-order 8 bits of the + given integer as status. */ + +/* This returns control to Nindy. */ + +__NORETURN void +DEFUN(_exit, (status), int status) +{ + /* status is ignored */ + + asm volatile( "mov 0,g0; \ + fmark ; \ + syncf ; \ + .word 0xfeedface ; \ + bx start" : : ); + /* The constant 0xfeedface is a magic word for break which + * is defined by NINDY. The branch extended restarts the + * application if the user types "go". + */ +} + + +#ifdef HAVE_GNU_LD + +#include <gnu-stabs.h> + +stub_warning(_exit); + +#endif /* GNU stabs. */ diff --git a/sysdeps/standalone/i960/nindy960/brdinit.c b/sysdeps/standalone/i960/nindy960/brdinit.c new file mode 100644 index 0000000000..c16adcd390 --- /dev/null +++ b/sysdeps/standalone/i960/nindy960/brdinit.c @@ -0,0 +1,66 @@ +/* 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" + +/* _Board_Initialize() + +This routine initializes the board. + +NOTE: Only tested on a Cyclone CVME961 but should be OK on any i960ca board. */ + +void +DEFUN_VOID(_Board_Initialize) +{ + struct i80960ca_prcb *prcb; /* ptr to processor control block */ + struct i80960ca_ctltbl *ctl_tbl; /* ptr to control table */ + + static inline struct i80960ca_prcb *get_prcb() + { register struct i80960ca_prcb *_prcb = 0; + asm volatile( "calls 5; \ + mov g0,%0" \ + : "=d" (_prcb) \ + : "0" (_prcb) ); + return ( _prcb ); + } + + prcb = get_prcb(); + ctl_tbl = prcb->control_tbl; + + /* The following configures the data breakpoint (which must be set + * before this is executed) to break on writes only. + */ + + ctl_tbl->bpcon &= ~0x00cc0000; + reload_ctl_group( 6 ); + + /* bit 31 of the Register Cache Control can be set to + * enable an alternative caching algorithm. It does + * not appear to help our applications. + */ + + /* Configure Number of Register Caches */ + + prcb->reg_cache_cfg = 8; + soft_reset( prcb ); +} diff --git a/sysdeps/standalone/i960/nindy960/console.c b/sysdeps/standalone/i960/nindy960/console.c new file mode 100644 index 0000000000..821514458a --- /dev/null +++ b/sysdeps/standalone/i960/nindy960/console.c @@ -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; + } +} |