Apple II 사용자 설명서

     $300:  01 50  BR $352

BRANCH IF NO CARRY:

     BNC ea              [ 02 d ]

     A branch to the effective address is taken only is the carry is

     clear, otherwise execution resumes as normal with the next

     instruction. Branch conditions are not changed.

BRANCH IF CARRY SET:

     BC ea               [ 03 d ]

     A branch is effected only if the carry is set. Branch conditions

     are not changed.

BRANCH IF PLUS:

     BP ea               [ 04 d ]

     A branch is effected only if the prior 'result' (or most

     recently transferred dat) was positive. Branch conditions are

     not changed.

     EXAMPLE: (Clear mem from A034 to A03F)

     15 34 A0           SET  R5   $A034     ;Init pointer

     14 3F A0           SET  R4   $A03F     ;Init limit

     B0         LOOP3   SUB  R0

     55                 ST   @R5            ;Clear mem byte

                                            ;Increment R5

     24                 LD   R4             ;Compare limit

     D5                 CPR  R5             ;to pointer

     04 FA              BP   LOOP3          ;Loop until done

BRANCH IF MINUS:

     BM ea               [ 05 d ]

     A branch is effected only if prior 'result' was minus (negative,

     MSB = 1). Branch conditions are not changed.

BRANCH IF ZERO:

     BZ ea               [ 06 d ]

     A Branch is effected only if the prior 'result' was zero. Branch

     conditions are not changed.

BRANCH IF NONZERO

     BNZ ea              [ 07 d ]

     A branch is effected only if the priot 'result' was non-zero

     Branch conditions are not changed.