diff options
Diffstat (limited to 'ldlinux.asm')
-rw-r--r-- | ldlinux.asm | 95 |
1 files changed, 3 insertions, 92 deletions
diff --git a/ldlinux.asm b/ldlinux.asm index 082ebce2..f54feb3c 100644 --- a/ldlinux.asm +++ b/ldlinux.asm @@ -132,21 +132,11 @@ trackbuf resb trackbufsize ; Track buffer goes here getcbuf resb trackbufsize ; ends at 5000h -VKernelBuf: resb vk_size ; "Current" vkernel - alignb 4 -AppendBuf resb max_cmd_len+1 ; append= -Ontimeout resb max_cmd_len+1 ; ontimeout -Onerror resb max_cmd_len+1 ; onerror -KbdMap resb 256 ; Keyboard map -FKeyName resb 10*16 ; File names for F-key help -NumBuf resb 15 ; Buffer to load number -NumBufEnd resb 1 ; Last byte in NumBuf alignb 8 ; Expanded superblock SuperInfo equ $ resq 16 ; The first 16 bytes expanded 8 times - FAT resd 1 ; Location of (first) FAT RootDirArea resd 1 ; Location of root directory area RootDir resd 1 ; Location of root directory proper @@ -154,82 +144,14 @@ DataArea resd 1 ; Location of data area RootDirSize resd 1 ; Root dir size in sectors TotalSectors resd 1 ; Total number of sectors EndSector resd 1 ; Location of filesystem end - - alignb 4 -E820Buf resd 5 ; INT 15:E820 data buffer -E820Mem resd 1 ; Memory detected by E820 -E820Max resd 1 ; Is E820 memory capped? -HiLoadAddr resd 1 ; Address pointer for high load loop -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 -FSectors resd 1 ; Number of sectors in getc file ClustSize resd 1 ; Bytes/cluster ClustMask resd 1 ; Sectors/cluster - 1 -KernelName resb 12 ; Mangled name for kernel - ; (note the spare byte after!) -OrigKernelExt resd 1 ; Original kernel extension -FBytes equ $ ; Used by open/getc -FBytes1 resw 1 -FBytes2 resw 1 -DirBlocksLeft resw 1 ; Ditto -RunLinClust resw 1 ; Cluster # for LDLINUX.SYS -KernelSects resw 1 ; Kernel size in clusters -FNextClust resw 1 ; Pointer to next cluster in d:o -FPtr resw 1 ; Pointer to next char in buffer -CmdOptPtr resw 1 ; Pointer to first option on cmd line -KernelCNameLen resw 1 ; Length of unmangled kernel name -InitRDCNameLen resw 1 ; Length of unmangled initrd name -NextCharJump resw 1 ; Routine to interpret next print char -SetupSecs resw 1 ; Number of setup sectors -A20Test resw 1 ; Counter for testing status of A20 -A20Type resw 1 ; A20 type -CmdLineLen resw 1 ; Length of command line including null -GraphXSize resw 1 ; Width of splash screen file -VGAPos resw 1 ; Pointer into VGA memory -VGACluster resw 1 ; Cluster pointer for VGA image file -VGAFilePtr resw 1 ; Pointer into VGAFileBuf -Com32SysSP resw 1 ; SP saved during COM32 syscall -DirScanCtr resw 1 ; OBSOLETE FIX THIS -EndofDirSec resw 1 ; OBSOLETE FIX THIS -CachePtrs times (65536/SECTOR_SIZE) resw 1 -NextCacheSlot resw 1 -CursorDX equ $ -CursorCol resb 1 ; Cursor column for message file -CursorRow resb 1 ; Cursor row for message file -ScreenSize equ $ -VidCols resb 1 ; Columns on screen-1 -VidRows resb 1 ; Rows on screen-1 -BaudDivisor resw 1 ; Baud rate divisor -FlowControl equ $ -FlowOutput resb 1 ; Outputs to assert for serial flow -FlowInput resb 1 ; Input bits for serial flow -FlowIgnore resb 1 ; Ignore input unless these bits set -TextAttribute resb 1 ; Text attribute for message file -RetryCount resb 1 ; Used for disk access retries -KbdFlags resb 1 ; Check for keyboard escapes -LoadFlags resb 1 ; Loadflags from kernel -A20Tries resb 1 ; Times until giving up on A20 -FuncFlag resb 1 ; Escape sequences received from keyboard -DisplayMask resb 1 ; Display modes mask +CachePtrs resw 65536/SECTOR_SIZE ; Cached sector pointers +NextCacheSlot resw 1 ; Next cache slot to occupy CopySuper resb 1 ; Distinguish .bs versus .bss DriveNumber resb 1 ; BIOS drive number ClustShift resb 1 ; Shift count for sectors/cluster ClustByteShift resb 1 ; Shift count for bytes/cluster -MNameBuf resb 11 ; Generic mangled file name buffer -InitRD resb 11 ; initrd= mangled name -KernelCName resb 13 ; Unmangled kernel name -InitRDCName resb 13 ; Unmangled initrd name -TextColorReg resb 17 ; VGA color registers for text mode -VGAFileBuf resb 13 ; Unmangled VGA image name -VGAFileBufEnd equ $ -VGAFileMBuf resb 11 ; Mangled VGA image name - alignb 4 ; For the good of REP MOVSD -command_line resb max_cmd_len+2 ; Command line buffer - alignb 4 -default_cmd resb max_cmd_len+1 ; "default" command line alignb open_file_t_size Files resb MAX_OPEN*open_file_t_size @@ -1603,6 +1525,7 @@ getcachesector: ; Begin data section ; ----------------------------------------------------------------------------- + section .data ; ; Lower-case table for codepage 865 ; @@ -1720,15 +1643,3 @@ boot_image_len equ $-boot_image align 4, db 0 ; Pad out any unfinished dword ldlinux_end equ $ -ldlinux_len equ $-ldlinux_magic - -; VGA font buffer at the end of memory (so loading a font works even -; in graphics mode.) -vgafontbuf equ 0E000h - -; This is a compile-time assert that we didn't run out of space -%ifndef DEPEND -%if (ldlinux_end-bootsec+7C00h) > vgafontbuf -%error "Out of memory, better reorganize something..." -%endif -%endif |