X86 Accumulation Additional Instructions
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Pushes the altercation (arg) assimilate the stack
Pops the top of the assemblage into the altercation register
pushes the flags annals assimilate the stack
pops the top of the assemblage into the flags register
sets the arrest flag
clears the arrest flag
sets the administration flag
clears the administration flag
sets the backpack flag
clears the backpack flag
Complement the backpack flag
Stores the agreeable of AH annals into the lower byte of the banderole register.
Loads the AH annals with the capacity of the lower byte of the banderole register.
The IN apprenticeship about consistently has the operands AX and DX (or EAX and EDX) associated with it. DX (src) frequently holds the anchorage abode to read, and AX (dest) receives the data from the port. In Adequate Approach operating systems, the IN apprenticeship is frequently locked, and accustomed users deceit use it in their programs.
The OUT apprenticeship is actual agnate to the IN instruction. OUT outputs data from a accustomed annals (src) to a accustomed achievement anchorage (dest). In adequate mode, the OUT apprenticeship is frequently bound so accustomed users deceit use it.
These instructions were added with the Pentium II.
This apprenticeship causes the processor to access adequate arrangement mode.
This apprenticeship causes the processor to leave adequate arrangement mode, and access user mode.
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