Yep, it does. ROL rotate left ROR rotate right ASL arithmetic shift left LSR logic shift right But for it to work for all 2-complement coded values we need

Yep, it does. ROL rotate left ROR rotate right ASL arithmetic shift left LSR logic shift right But for it to work for all 2-complement coded values we need to ensure that the MSB is copied back into itself to keep the value the same sign, which can be done with another shift. ; Divide a signed 16-bit value by 2 LDA MEM+1 ;Load the MSB ASL A ;Copy the sign bit into C ROR MEM+1 ;restore MSB ROR MEM+0 ;Rotate the LSB It's a bunch of cycles but nothing compared to a generic division.