Routines 
Prev: 351B  Up: Map 
The address of this routine is found in the table of addresses. It is called indirectly via fp_calc_2.
This subroutine performs the binary operation 'X AND Y' and returns X if Y is nonzero and the value zero otherwise.


no_and_no  3524  EX DE,HL  Point HL at Y, DE at X.  
3525  CALL TEST_ZERO  Test whether Y is zero.  
3528  EX DE,HL  Swap the pointers back.  
3529  RET NC  Return with X as the 'last value' if Y was nonzero.  
352A  AND A  Reset the carry flag and jump back to set the 'last value' to zero.  
352B  JR FP_0_1 
Prev: 351B  Up: Map 