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bootloader: Cleanup memcpy and memset 

There isn't really any reason to do 32 bit moves
This commit is contained in:
Bananymous 2025-02-06 20:56:35 +02:00
parent b30a79c7fe
commit 4212f48d7a
1 changed files with 0 additions and 18 deletions
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18
bootloader/bios/utils.S
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@ -306,20 +306,8 @@ memset32:
movw $GDT_DATA32, %dx movw $GDT_DATA32, %dx
movw %dx, %es movw %dx, %es
movl %ecx, %edx
andl $3, %ecx
rep stosb %es:(%edi) rep stosb %es:(%edi)
movl %edx, %ecx
shrl $2, %ecx
movb %al, %ah
movw %ax, %dx
shll $16, %eax
movw %dx, %ax
rep stosl %es:(%edi)
ljmpl $GDT_CODE16, $.memset32_pmode16 ljmpl $GDT_CODE16, $.memset32_pmode16
.code16 .code16
@ -370,14 +358,8 @@ memcpy32:
movw %dx, %ds movw %dx, %ds
movw %dx, %es movw %dx, %es
movl %ecx, %edx
andl $3, %ecx
rep movsb %ds:(%esi), %es:(%edi) rep movsb %ds:(%esi), %es:(%edi)
movl %edx, %ecx
shrl $2, %ecx
rep movsl %ds:(%esi), %es:(%edi)
ljmpl $GDT_CODE16, $.memcpy32_pmode16 ljmpl $GDT_CODE16, $.memcpy32_pmode16
.code16 .code16