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| author | AlmuHS <almuhs@github.com> | 2019-05-20 23:51:37 +0200 |
|---|---|---|
| committer | AlmuHS <almuhs@github.com> | 2019-05-20 23:51:37 +0200 |
| commit | 182f0c9e89b623dd8f93ea5de60d1c93c7987090 (patch) | |
| tree | 8a6042197340b5b27cfba53856450cd3de2b9e8f | |
| parent | 4d2c80d3350dfbd13a5f70191d254cdecdfc5235 (diff) | |
fix: optimize cr0 initialize
| -rw-r--r-- | i386/i386/cpuboot.S | 6 |
1 files changed, 1 insertions, 5 deletions
diff --git a/i386/i386/cpuboot.S b/i386/i386/cpuboot.S index beb3c78b..e5b7d543 100644 --- a/i386/i386/cpuboot.S +++ b/i386/i386/cpuboot.S @@ -128,11 +128,7 @@ nopae: //set_cr0(get_cr0() & ~(CR0_CD | CR0_NW)); movl %cr0, %eax - movl $0, %edx - movl $CR0_CD, %edx - orl $CR0_NW, %edx - not %edx - andl %edx, %eax + andl $(~(CR0_CD | CR0_NW)), %eax movl %eax, %cr0 |