Digital Photo Keychain User Manual

NOTATION

MOTOROLA

INSTRUCTION SET DETAILS A - 5

Xn Input Register X1 or X0 (24 Bits)

Yn Input Register Y1 or Y0 (24 Bits)

An Accumulator Registers A2, A1, A0 (A2 — 8 Bits, A1 and A0 — 24 Bits)

Bn Accumulator Registers B2, B1, B0 (B2 — 8 Bits, B1 and B0 — 24 Bits)

X Input Register X = X1: X0 (48 Bits)

Y Input Register Y = Y1: Y0 (48 Bits)

A Accumulator A = A2: A1: A0 (56 Bits)*

B Accumulator B = B2: B1: B0 (56 BIts)*

AB Accumulators A and B = A1: B1 (48 Bits)*

BA Accumulators B and A = B1: A1 (48 Bits)*

A10 Accumulator A = A1: A0 (48 Bits)

B10 Accumulator B= B1:B0 (48 bits)

* NOTE: In data move operations, shifting and limiting are performed when this register is speciﬁed

as a source operand. When speciﬁed as a destination operand, sign extension and possibly

zeroing are performed.

Data ALU Registers Operands

Table A-1 Instruction Description Notation

Rn Address Registers R0 - R7 (16 Bits)

Nn Address Offset Registers N0 - N7 (16 Bits)

Mn Address Modiﬁer Registers M0 - M7 (16 Bits)

Address ALU Registers Operands