[src/nathanw_sa]: src/sys/arch/mvme68k/stand/libbug Fix bootline argument pas...

[scw <scw%NetBSD.org@localhost>]

details:   https://anonhg.NetBSD.org/src/rev/f65bd2ce902d
branches:  nathanw_sa
changeset: 504625:f65bd2ce902d
user:      scw <scw%NetBSD.org@localhost>
date:      Sat Apr 14 13:43:09 2001 +0000

description:
Fix bootline argument passing from the Bug PROM.

diffstat:

 sys/arch/mvme68k/stand/libbug/bugstart.s |  57 ++++++++++++++++++++++++++++++++
 1 files changed, 57 insertions(+), 0 deletions(-)

diffs (61 lines):

diff -r 375c97f1403c -r f65bd2ce902d sys/arch/mvme68k/stand/libbug/bugstart.s
--- /dev/null   Thu Jan 01 00:00:00 1970 +0000
+++ b/sys/arch/mvme68k/stand/libbug/bugstart.s  Sat Apr 14 13:43:09 2001 +0000
@@ -0,0 +1,57 @@
+/*     $NetBSD: bugstart.s,v 1.2.8.2 2001/04/14 13:43:09 scw Exp $     */
+
+#define _LOCORE
+#include <machine/prom.h>
+#undef _LOCORE
+#include <machine/asm.h>
+
+       .data
+       .even
+
+GLOBAL(bugargs)
+       .space  MVMEPROM_ARGS_MAX*4
+
+       .text
+       .even
+
+       .long   _C_LABEL(start) - 0x10
+       .long   _C_LABEL(start)
+
+#define        BUG_ARG(which)  _C_LABEL(bugargs) + (which)
+
+ENTRY_NOPROFILE(_start)
+ENTRY_NOPROFILE(start)
+       moveml  %d0/%a0,%sp@-
+       lea     _C_LABEL(edata),%a0
+       movl    #_C_LABEL(end) - 4,%d0
+       subl    %a0,%d0
+       lsrl    #2,%d0
+1:     clrl    %a0@+
+       dbra    %d0,1b
+       moveml  %sp@+,%d0/%a0
+       movl    MVMEPROM_REG_DEVLUN, BUG_ARG(MVMEPROM_ARGS_DEVLUN)
+       movl    MVMEPROM_REG_CTRLLUN, BUG_ARG(MVMEPROM_ARGS_CTRLLUN)
+       movl    MVMEPROM_REG_FLAGS, BUG_ARG(MVMEPROM_ARGS_FLAGS)
+       movl    MVMEPROM_REG_CTRLADDR, BUG_ARG(MVMEPROM_ARGS_CTRLADDR)
+       movl    MVMEPROM_REG_ENTRY, BUG_ARG(MVMEPROM_ARGS_ENTRY)
+       movl    MVMEPROM_REG_CONFBLK, BUG_ARG(MVMEPROM_ARGS_CONFBLK)
+       movl    MVMEPROM_REG_NBARGSTART, BUG_ARG(MVMEPROM_ARGS_NBARGSTART)
+       movl    MVMEPROM_REG_NBARGEND, BUG_ARG(MVMEPROM_ARGS_NBARGEND)
+       movl    MVMEPROM_REG_ARGSTART, BUG_ARG(MVMEPROM_ARGS_ARGSTART)
+       movl    MVMEPROM_REG_ARGEND, BUG_ARG(MVMEPROM_ARGS_ARGEND)
+       jmp     _C_LABEL(_bugstart)
+
+ENTRY_NOPROFILE(bugexec)
+       addql   #4,%sp
+       movl    BUG_ARG(MVMEPROM_ARGS_DEVLUN), MVMEPROM_REG_DEVLUN
+       movl    BUG_ARG(MVMEPROM_ARGS_CTRLLUN), MVMEPROM_REG_CTRLLUN
+       movl    BUG_ARG(MVMEPROM_ARGS_FLAGS), MVMEPROM_REG_FLAGS
+       movl    BUG_ARG(MVMEPROM_ARGS_CTRLADDR), MVMEPROM_REG_CTRLADDR
+       movl    BUG_ARG(MVMEPROM_ARGS_ENTRY), MVMEPROM_REG_ENTRY
+       movl    BUG_ARG(MVMEPROM_ARGS_CONFBLK), MVMEPROM_REG_CONFBLK
+       movl    BUG_ARG(MVMEPROM_ARGS_NBARGSTART), MVMEPROM_REG_NBARGSTART
+       movl    BUG_ARG(MVMEPROM_ARGS_NBARGEND), MVMEPROM_REG_NBARGEND
+       movl    BUG_ARG(MVMEPROM_ARGS_ARGSTART), MVMEPROM_REG_ARGSTART
+       movl    BUG_ARG(MVMEPROM_ARGS_ARGEND), MVMEPROM_REG_ARGEND
+ENTRY_NOPROFILE(__main)
+       rts