Useful Assembly Instructions

Count the number of bytes located in memory from DS:1000h to DS:1200h that are greater than 77h. Place the count on register CA.

Procedures

Write a small procedure that adds 2 words together and stores the results in CX (high word) and DX (low word). Call the procedure from a program that loads the words to be added together in registers AX and BX

Societal Issues

Suppose you operate a Web site for backpackers with a few thousand paid members. Members discuss equipment, trip location, safe and related subjects. They also use the site to plan specific trips and find compatible trip companions. Discuss what policies and procedures you would implement to deal with the problem of members posting the following kinds of material: a) discussions about how to sneak into legally closed natural areas.

8086 Family Architecture

Write and manually assemble the following programs. All memory addresses include the starting and ending addreses. Show comments and identified source codes. 1. Clear (place 0s) in all memory locations from 2000h to 200Ah. 2. Make every odd bit in memory addreses C000h and D000h a 0. Do not change any other bit at each address.

Assembly Instructions

Write a program that takes the smaller of two words stored in memory locations DS:12324h and DS:5678h ans store in register AX.