.define Rmi2 ! This subroutine returns the remainder of a twobyte signed division. ! The sign of the result is as specified in the emtest. Rmi2: ldy #0 sty NBYTES ! for the sign of the result stx ARTH sta ARTH+1 ! first operand jsr Pop stx ARTH+2 sta ARTH+3 ! second operand ldy #0 sty UNSIGN ! its signed arithmetic jsr Div lsr ARTH+5 ror ARTH+4 ! result must be shifted one time ldx ARTH+4 lda ARTH+5 ldy NBYTES beq 1f ! result must be positive jmp Ngi2 1: rts