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condensing vbe attribute checks in bootloader

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Benji Dial 2021-02-18 21:27:39 -05:00
parent 82d74f17f4
commit cba9eec34b
1 changed files with 3 additions and 8 deletions
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11
src/boot.asm
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@ -113,15 +113,10 @@ vbe_loop:
int 0x10 int 0x10
mov al, byte [di] mov al, byte [di]
not al
test al, 0x01 test al, 0x9a
jz vbe_loop jnz vbe_loop
test al, 0x10
jz vbe_loop
test al, 0x80
jz vbe_loop
mov dx, word [di + 0x14];height mov dx, word [di + 0x14];height
cmp dx, max_height cmp dx, max_height