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Write a procedure, called ADD.BCD, that will add two 8-bit packed BCD numbers and store the result in memory location 30H. Assume the original numbers are stored in R1 and R2 before calling the procedure. Your program should NOT use the "DA" (decimal adjust) instruction. For example, assume R1 and R2 have values 29H and 27H, the result should be 56H. Assume that the resulting BCD number can be correctly represented in a single byte (i.e. 2 BCD digits only). Below is the exact operation of the DA instruction for your reference. Use conditional jumps IF (A3-09) OR (AC = 1) A = A +6 IF (A7-49) OR (C = 1) A = A + 60h

Write a procedure, called ADD.BCD, that will add two 8-bit packed BCD numbers and store the result in memory location 30H. Assume the original numbers are stored in R1 and R2 before calling the procedure. Your program should NOT use the "DA" (decimal adjust) instruction. For example, assume R1 and R2 have values 29H and 27H, the result should be 56H. Assume that the resulting BCD number can be correctly represented in a single byte (i.e. 2 BCD digits only). Below is the exact operation of the DA instruction for your reference. Use conditional jumps IF (A3-09) OR (AC = 1) A = A +6 IF (A7-49) OR (C = 1) A = A + 60h

Computer Networking: A Top-Down Approach (7th Edition)
Computer Networking: A Top-Down Approach (7th Edition)
7th Edition
ISBN:9780133594140
Author:James Kurose, Keith Ross
Publisher:James Kurose, Keith Ross
Chapter1: Computer Networks And The Internet
Section: Chapter Questions
Problem R1RQ: What is the difference between a host and an end system? List several different types of end...
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Write a procedure, called ADD.BCD, that will add two 8-bit packed BCD numbers and store the result in memory location 30H. Assume the original numbers are stored in R1 and R2 before calling the procedure. Your program should NOT use the "DA" (decimal adjust) instruction. For example, assume R1 and R2 have values 29H and 27H, the result should be 56H. Assume that the resulting BCD number can be correctly represented in a single byte (i.e. 2 BCD digits only). Below is the exact operation of the DA instruction for your reference. Use conditional jumps IF (A3-09) OR (AC = 1) A = A +6 IF (A749) OR (C = 1) A = A + 60h
Transcribed Image Text:Write a procedure, called ADD.BCD, that will add two 8-bit packed BCD numbers and store the result in memory location 30H. Assume the original numbers are stored in R1 and R2 before calling the procedure. Your program should NOT use the "DA" (decimal adjust) instruction. For example, assume R1 and R2 have values 29H and 27H, the result should be 56H. Assume that the resulting BCD number can be correctly represented in a single byte (i.e. 2 BCD digits only). Below is the exact operation of the DA instruction for your reference. Use conditional jumps IF (A3-09) OR (AC = 1) A = A +6 IF (A749) OR (C = 1) A = A + 60h
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