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fix is_region_userspace (worked incorrectly for e.g 0xFFFFFFFF)

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git-svn-id: svn://kolibrios.org@8216 a494cfbc-eb01-0410-851d-a64ba20cac60
This commit is contained in:
Rustem Gimadutdinov (rgimad) 2020-11-17 20:00:28 +00:00
parent 055b9d04c4
commit efa84a263d
1 changed files with 5 additions and 2 deletions
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5
kernel/trunk/kernel.asm
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@ -5674,13 +5674,16 @@ is_region_userspace:
; ebx = len ; ebx = len
; out: eax = 1 if region in userspace memory, 0 if not ; out: eax = 1 if region in userspace memory, 0 if not
push esi edi ecx push esi edi ecx
cmp eax, OS_BASE
ja @f
add eax, ebx add eax, ebx
cmp eax, OS_BASE cmp eax, OS_BASE
ja @f ja @f
mov eax, 1 mov eax, 1
jmp .ret jmp .ret
@@: @@:
xor eax, eax xor eax, eax
.ret: .ret: