ARM MODULE 3 Write CP to blink the LED.

NOTES IN PPT

1. Combined Compare and Conditional Branch CBZ (compare and branch if zero) and CBNZ (compare and branch if nonzero).

2. Conditional Execution Using IT Instructions

3. Write C code

4. Instruction Barrier and Memory Barrier Instructions

5. Write IT code if (R1<R2) then R2 = R2+R1 R3 = R2/2 else R1=R2

6. Saturation Operations

7. if a 32-bit signed value is to be saturated into a 16-bit signed value, SSAT.W R1, #16, R0 if a 32-bit unsigned value is to saturate into a 16-bit unsigned value, USAT.W R1, #16, R0

8. Table Branch Byte and Table Branch Halfword Lsb bit is 0 for PC Hence offset value is multiplied by ? PC value is the current instruction address plus four the branch range for TBB is (2 × 255) + 4 = 514 the branch range for TBH is (2 × 65535) + 4 = 131074. TBB.W [Rn, Rm] Rn is the base memory offset and Rm is the branch table index The branch table item for TBB is located at Rn + Rm Rn + 2 x Rm TBB.W [Rn, Rm]

9. TBB.W [pc, r0]

10. Programs

11. Using Same program store the result in memory called the “result” Write a ALP to add, sub two 16-bit numbers stored in memory & store the result in memory, use appropriate directives

12. Write a C Program to blink the LED.

13. A TYPICAL DEVELOPMENT FLOW

14. CMSIS- Common Microcontroller Software Interface Standard

15. BENEFITS