Transfer between two general-purpose registers and a 40-bit internal accumulator.
is an optional condition code.
is the internal accumulator. The standard name is accx,where x is an integer in the range 0 to n. The value of n depends on the processor. It is 0 for current processors.
- RdLo, RdHi
are general-purpose registers.
RdHimust not be the PC.
MAR instruction copies the
contents of RdLo to bits[31:0]
of Acc, and the least significant
byte of RdHi to bits[39:32]
MAR ARM coprocessor 0 instruction
is only available in XScale processors.
There is no Thumb version of the
MAR acc0, r0, r1 MARNE acc0, r9, r2