Project: Please read Chapter 3 of your textbook for writing subroutines and Chapter 4 of your textbook; then, write assembly programs to do the following:
The clock frequency is Dragon 12 board 24MHz.
Flash all LEDs in one Hz frequency when running your program.
You must complete the given delay subroutine using LOOP to time approximately one second.
You need to turn on all the LEDs, then, call this subroutine, turn off all LEDs, and then, call this subroutine.
NOP consumes 1 Clk Cycle
DEC consumes 4 Clk Cycles
BNE consumes 3 Clk Cycles
Delay subroutine template
L2 LDAA #240
L1 NOP ;1 Clk Cycle
NOP ;1 Clk Cycle
NOP ;1 Clk Cycle
DEC R1 ;4 Clk Cycles
BNE L1 ;3 Clk Cycles
Total number clock is that 10 Clk x 240 times = 2400 Clk = 0.1ms
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