5.7

Questions:

1. Describe the function of the assembler directives: equ, .section, .byte, .ascii, and

.end.

2. If the following data is in these registers or memory,

Register R0 = 0xB7

Register R1-0x2000.0040

Memory address 0x2000.0040=0x65

Memory address 0x2000.0042=0x7A

What numbers are in registers RO and R1 after each of the following instructions is

executed?

a. LDRB RO, [R1, #2]

b. LDRB RO, [R1], #2

c. LDRB R0, [R1, #2]!

3. Extra Credit: There are 50 students in the class and you want to input their one

digit grades after displaying Grades for the next student on the screen. Write a

program that uses InChar and OutStr to perform this input and display operation

only. No conversion or storage operation needs to be done (unless you want to!).