尝试计算任何给定数组的零个数
ORG $8000
START MOVEA.L #V0,A0
COUNTERT CLR D0
COUNTERF CLR D1
RIEMP MOVE NELEM,D2
LOOP CMP #0,(A0)+
BEQ COUNT
CMP D0,D1
BGT UPDATEF
CKR ADD #-1,D2
BEQ STORE
BRA LOOP
COUNT ADDI #1,D0
BRA LOOP
UPDATEF MOVE D0,D1
CLR D0
BRA CKR
STORE MOVE D1,LZ
FINE JMP FINE
ORG $8200
V0 DC.W 1,0,0,1,0,-3,1
V1 DC.W 0,-3,0,0,0,0,2
V2 DC.W 1,0,-1,1,0,-3,2
V3 DC.W 1,5,--1,2,4,-3,1
NELEM DC.W 7
ORG $8300
LZ DS.W 1
END START
但是第二个 CMP D0,D1 没有激活 BGT UPDATEF 来存储更大计数器的值