aabc2/KOS_qrcodes
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Split bootbios.asm and kernel.asm.

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* Move bios-related part of kernel.asm before B32 label to
  bootbios.asm file;
* Move bx_from_load, boot_dev and kernel_restart_bootblock variables
  to BOOT_* 0x9000 block;
* Update Tupfile.lua, Makefile, build.bat, build.sh accordingly;
* Now bios and uefi loaders can jump to very first byte of the kernel.

git-svn-id: svn://kolibrios.org@7129 a494cfbc-eb01-0410-851d-a64ba20cac60
This commit is contained in:
Ivan B
2017-12-16 20:21:10 +00:00
parent 7dad6439fe
commit f208e0e454
14 changed files with 201 additions and 141 deletions
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16
kernel/trunk/boot/bootcode.inc
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@@ -274,22 +274,26 @@ if defined extended_primary_loader
pop ds
else
cld
push 0
pop es
; \begin{diamond}[02.12.2005]
; if bootloader sets ax = 'KL', then ds:si points to loader block
cmp ax, 'KL'
jnz @f
mov word [cs:cfgmanager.loader_block], si
mov word [cs:cfgmanager.loader_block+2], ds
mov word [es:BOOT_KERNEL_RESTART], kernel_restart_bootblock
@@:
; \end{diamond}[02.12.2005]
; if bootloader sets cx = 'HA' and dx = 'RD', then bx contains identifier of source hard disk
; (see comment to bx_from_load)
; if bootloader sets cx = 'HA' and dx = 'RD', then bx contains identifier of source disk
; (see comment to BOOT_BX_FROM_LOAD and loader_doc.txt)
mov word [es:BOOT_BX_FROM_LOAD], 'r1' ; default value: /rd/1
cmp cx, 'HA'
jnz no_hd_load
cmp dx, 'RD'
jnz no_hd_load
mov word [cs:bx_from_load], bx ; {SPraid}[13.03.2007]
mov [es:BOOT_BX_FROM_LOAD], bx
no_hd_load:
; set up stack
@@ -966,14 +970,14 @@ end if
mov al, [preboot_device]
dec al
mov [boot_dev], al
mov [es:BOOT_DEV], al
; GET MEMORY MAP
include '../detect/biosmem.inc'
; READ DISKETTE TO MEMORY
cmp [boot_dev], 0
cmp byte [es:BOOT_DEV], 0
jne no_sys_on_floppy
mov si, diskload
call print
@@ -1300,7 +1304,7 @@ no_sys_on_floppy:
out dx, al
if defined extended_primary_loader
cmp [boot_dev], 1
cmp [es:BOOT_DEV], 1
jne no_sys_from_primary
; load kolibri.img using callback from primary loader
and word [movedesc + 24 + 2], 0