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Use unsigned mul instead of signed imul

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Philipp Oppermann
2015-10-31 13:48:12 +01:00
parent 1e7236caf5
commit 8789fa8531
1 changed files with 1 additions and 1 deletions
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src/arch/x86_64/boot.asm
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@@ -54,7 +54,7 @@ setup_page_tables:
.map_p2_table: .map_p2_table:
; map ecx-th P2 entry to a huge page that starts at address (2MiB * ecx) ; map ecx-th P2 entry to a huge page that starts at address (2MiB * ecx)
mov eax, 0x200000 ; 2MiB mov eax, 0x200000 ; 2MiB
imul eax, ecx ; start address of ecx-th page mul ecx ; start address of ecx-th page
or eax, 0b10000011 ; present + writable + huge or eax, 0b10000011 ; present + writable + huge
mov [p2_table + ecx * 8], eax ; map ecx-th entry mov [p2_table + ecx * 8], eax ; map ecx-th entry