CPU Registers x86: Difference between revisions
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NOTE that this register is the only control register that can be written and read via 2 ways unlike the other that can be accessed only via the MOV instruction
<source lang="asm">
;way 1:
;write:
mov cr0,reg32(64)
;read:
mov reg32(64),cr0
;----------------------
;way 2:
;write:
lmsw reg16(32/64) ; the 'w' in lms(w) stands for word size (16 bit) but the instruction itself can modify the upper 48 bit of cr0 using instruction overrides.
;read:
smsw reg16(32/64) ; SAME as above
</source>
====CR1====
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