Find the number of negative numbers from list of hexa decimal numbers

This Assembly Language program for 8086 microprocessor will calculate the number of negative numbers from the list of hexa decimal numbers


LDA 2200H
MOV C,A
MVI B,00
LXI H,2201H
BACK: MOV A,M
ANI 80H
JZ SKIP
INR B
SKIP: INX H
DCR C
JNZ BACK
MOV A,B
STA 2300H
HLT

the program works as follows
first initialize the counter for total number of numbers to search for (C)
put the initial value for negative numbers is equals to zero ( B=0)
initialize the pointer to the memory location of the data
then get the number and check the most significant bit if it is 1 then the number is negative (verify this your self )
increment B that is negative number count
increment pointer
decrement number count C
repeat the process of the total numbers
store the result and stop the program .

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