Move constant value into reg.
Take advantage of existing values in registers.
If flags & mPSW
set flags based on result
Else if flags & 8
do not disturb flags
Else
don't care about flags
If flags & 1 then byte move
If flags & 2 then short move (for I32 and I64)
If flags & 4 then don't disturb unused portion of register
If flags & 16 then reg is a byte register AL..BH
If flags & 64 (0x40) then 64 bit move (I64 only)
The D Programming Language's Unofficial Docs
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Move constant value into reg. Take advantage of existing values in registers. If flags & mPSW set flags based on result Else if flags & 8 do not disturb flags Else don't care about flags If flags & 1 then byte move If flags & 2 then short move (for I32 and I64) If flags & 4 then don't disturb unused portion of register If flags & 16 then reg is a byte register AL..BH If flags & 64 (0x40) then 64 bit move (I64 only)