diff options
Diffstat (limited to 'sys/arch/i386/stand/cdbr/cdbr.S')
| -rw-r--r-- | sys/arch/i386/stand/cdbr/cdbr.S | 33 |
1 files changed, 21 insertions, 12 deletions
diff --git a/sys/arch/i386/stand/cdbr/cdbr.S b/sys/arch/i386/stand/cdbr/cdbr.S index 7957e1bc173..e9947c2cbe2 100644 --- a/sys/arch/i386/stand/cdbr/cdbr.S +++ b/sys/arch/i386/stand/cdbr/cdbr.S @@ -1,4 +1,4 @@ -/* $OpenBSD: cdbr.S,v 1.1 2004/06/22 23:12:18 tom Exp $ */ +/* $OpenBSD: cdbr.S,v 1.2 2004/08/24 15:24:05 tom Exp $ */ /* * Copyright (c) 2004 Tom Cosgrove <tom.cosgrove@arches-consulting.com> @@ -172,9 +172,7 @@ lookup_path: orb %al, %al /* Is it double nul? */ jnz lookup_path /* No, try it */ movw $msg_failed, %si /* Failed message */ - call display_string - movw $loader_paths, %si - jmp err_stop /* Halt */ + jmp err_stop /* Print it and halt */ lookup_found: /* Found a loader file */ @@ -218,6 +216,9 @@ load_done: /* Now we can start the loaded program */ + movw loader, %cx /* Tell cdboot where it is */ + /* (Older versions of cdbr have */ + /* %cx == 0 from the jcxz load_done) */ movb drive, %dl /* Get the boot drive number */ ljmp $BOOTSEG, $0 /* Go run cdboot */ @@ -490,9 +491,8 @@ signon: .asciz "CD-ROM: " crlf: .asciz "\r\n" msg_load2big: .asciz "File too big" msg_badread: .asciz "Read error: 0x" -msg_novd: .asciz "Unable to find Primary Volume Descriptor" +msg_novd: .asciz "No Primary Volume Descriptor" msg_loading: .asciz "Loading " -msg_failed: .asciz "Can't find " /* State for searching dir */ rec_lba: .long 0x0 /* LBA (adjusted for EA) */ @@ -502,12 +502,6 @@ name_len: .byte 0x0 /* Length of current name */ twiddle_index: .byte 0x0 twiddle_chars: .ascii "|/-\\" -/* loader_paths is a list of ASCIZ strings followed by a term NUL byte */ -loader: .word 0 /* The one we end up using */ -loader_paths: .asciz "/cdboot" - .asciz "/CDBOOT" - .byte 0 - /* Packet for LBA (CD) read */ edd_packet: .byte 0x10 /* Length */ .byte 0 /* Reserved */ @@ -516,6 +510,21 @@ edd_len: .byte 0x0 /* Num to read */ edd_addr: .word 0x0, 0x0 /* Seg:Off */ edd_lba: .quad 0x0 /* LBA */ +/* The data from here must be last in the file, only followed by 0x00 bytes */ + +loader: .word 0 /* The path we end up using */ + +msg_failed: .ascii "Can't find " /* This string runs into... */ + +/* loader_paths is a list of ASCIZ strings followed by a term NUL byte */ +loader_paths: .asciz "/cdboot" + .asciz "/CDBOOT" + .ascii "/", OSREV, "/", MACH, "/cdboot" + .byte 0 /* NUL-term line above */ + .ascii "/", OSREV, "/", MACH_U, "/CDBOOT" + .byte 0 /* NUL-term line above */ + .byte 0 /* Terminate the list */ + . = BOOTSECTSIZE .end |