In ARM assembly language

Write assembly functions that implement the following C functions:

a. uint32_t add32(uint32_t x, uint32_t y) // returns (x+y)%(2^32); any carry out is lost

b. uint64_t add32_64(uint32_t x, uint32_t y) // returns x+y; sum contains any carry

c. uint64_t add64(uint64_t x, uint64_t y) // returns (x+y)%(2^64)

d. uint32_t shiftLeftU32 (uint32_t x, uint32_t p) // returns x << p = x*2^p for p = 0..31

e. uint32_t shiftU32(uint32_t x, int32_t p) // return x*2^p for p = -31..31