diff options
| author | hpa <hpa> | 2002-06-11 05:48:29 +0000 |
|---|---|---|
| committer | hpa <hpa> | 2002-06-11 05:48:29 +0000 |
| commit | abac6f53695c0b99e0235ca3da81ab3cd822f475 (patch) | |
| tree | 42c9c90abcb685ec654b25e680f6a0e272d1fe52 /ldlinux.asm | |
| parent | 73d0682dcdd250939e560d333b591d7a5a8299ca (diff) | |
| download | syslinux-abac6f53695c0b99e0235ca3da81ab3cd822f475.tar.gz | |
Add an API for COMBOOT images, and add support for "COM32" -- 32-bit
linear .com files.
Diffstat (limited to 'ldlinux.asm')
| -rw-r--r-- | ldlinux.asm | 18 |
1 files changed, 8 insertions, 10 deletions
diff --git a/ldlinux.asm b/ldlinux.asm index bf8ebbc2..f35deb6b 100644 --- a/ldlinux.asm +++ b/ldlinux.asm @@ -139,6 +139,7 @@ HighMemSize resd 1 ; End of memory pointer (bytes) RamdiskMax resd 1 ; Highest address for a ramdisk KernelSize resd 1 ; Size of kernel (bytes) SavedSSSP resd 1 ; Our SS:SP while running a COMBOOT image +PMESP resd 1 ; Protected-mode ESP ClustPerMoby resd 1 ; Clusters per 64K ClustSize resd 1 ; Bytes/cluster KernelName resb 12 ; Mangled name for kernel @@ -793,7 +794,8 @@ all_read_jmp: ; SI -> Starting cluster number (2-based) ; CX -> Cluster count (0FFFFh = until end of file) ; - ; 386 check +; Returns CF=1 on EOF +; getfssec: getfragment: xor ebp,ebp ; Fragment sector count movzx eax,si ; Get sector address @@ -1311,6 +1313,7 @@ kernel_corrupt: mov si,err_notkernel ; ; .com - COMBOOT image ; .cbt - COMBOOT image +; .c32 - COM32 image ; .bs - Boot sector ; .0 - PXE bootstrap program (PXELINUX only) ; .bin - Boot sector @@ -1334,6 +1337,8 @@ kernel_good: je is_comboot_image cmp ecx,'CBT' je is_comboot_image + cmp ecx,'C32' + je is_com32_image cmp ecx,'BS ' je is_bootsector cmp ecx,'BIN' @@ -1351,6 +1356,7 @@ kernel_good: ; COMBOOT-loading code ; %include "comboot.inc" +%include "com32.inc" ; ; Boot sector loading code @@ -1625,6 +1631,7 @@ lc_ret: ret %include "loadhigh.inc" ; Load a file into high memory %include "font.inc" ; VGA font stuff %include "graphics.inc" ; VGA graphics +%include "highmem.inc" ; High memory sizing ; ----------------------------------------------------------------------------- ; Begin data section @@ -1651,15 +1658,6 @@ boot_prompt db 'boot: ', 0 wipe_char db BS, ' ', BS, 0 err_notfound db 'Could not find kernel image: ',0 err_notkernel db CR, LF, 'Invalid or corrupt kernel image.', CR, LF, 0 -err_not386 db 'It appears your computer uses a 286 or lower CPU.' - db CR, LF - db 'You cannot run Linux unless you have a 386 or higher CPU' - db CR, LF - db 'in your machine. If you get this message in error, hold' - db CR, LF - db 'down the Ctrl key while booting, and I will take your' - db CR, LF - db 'word for it.', CR, LF, 0 err_noram db 'It appears your computer has less than 488K of low ("DOS")' db CR, LF db 'RAM. Linux needs at least this amount to boot. If you get' |