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boot/fat: Shave off a byte by storing final address on stack

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Nero 2020-09-27 11:25:57 +00:00
parent 386e91b4c8
commit 909349a4cf
1 changed files with 2 additions and 2 deletions
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4
boot/fat.asm
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@ -24,6 +24,7 @@ params: times bpb_size db 0
init: xor ax, ax init: xor ax, ax
mov ss, ax mov ss, ax
mov sp, stack mov sp, stack
push sp
; save potential partition table entry ; save potential partition table entry
push ds push ds
@ -194,7 +195,7 @@ loadclus: lodsw
.jump: mov dl, [bp+bpb.drivenum] .jump: mov dl, [bp+bpb.drivenum]
pop si pop si
pop ds pop ds
jmp 0x7C00 ret
err_not_found: err_not_found:
hlt: hlt hlt: hlt
@ -203,4 +204,3 @@ hlt: hlt
times (0x1F3 - ($-$$)) db 0 times (0x1F3 - ($-$$)) db 0
filename: db "KERNEL ", "BS " filename: db "KERNEL ", "BS "
dw 0xAA55 dw 0xAA55
buf: