; Based on BSM (Bit Shifter's Monitor) Get_Param_Range: ; read two (address) parameters ; Long_CT - difference (2nd minus 1st parameter) ; Long_PC - 1st parameter ; Src_Addr_Mode - 1st parameter addressing mode ; Long_DA - 2nd parameter ; Dst_Addr_Mode - 2nd parameter addressing mode ; carry on exit - 2nd parameter lower than 1st one jsr @get_helper sta Src_Addr_Mode jsr LAC_To_LPC ; Long_PC - 1st address jsr @get_helper sta Dst_Addr_Mode jsr LAC_To_LDA ; Long_PC - 2nd address jsr LAC_Minus_LPC ; Long_CT = range bcc @error clc rts @error: sec rts @get_helper: lda #$00 sta Addr_Mode jsr Get_Val_To_LAC beq @error lda Addr_Mode rts