[Solved]Function Adds Two Arguments Returns Result Remember Return Value Placed Ro Returning Param Q37055402

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This function adds two arguments and returns the result. Remember that the return value is placed in rO before returning. @param r0: first arg, x param rl: second arg, y *@returns the sumof the two .global add type add, %function add TODO: finish this procedure here. */ /* return from this procedure (jump to 1r) */ bx 1r * This function returns the greater of two arguments. You will need to do a comparison for this. Remember that cmp sets all the CSPR registers (EQ, ZERO, etc) and the next *instruction can use them. (BEQ, BLE, etc). HINT: to copy the value of a register into another, use the “mov” *instruction: mov r0, rl ; copies value of rl into rO *param r0: first arg, x param rl: second arg, y *areturns the greater value of x or y .global greater type greater, %function greater: TODO: finish this procedure here* /* return from this procedure (jump to 1r) */ This function sums an array. *You’11 need a loop for this, and will probably want to *use a few registers as temporary storage. *Some hints: to multiply the value in a register by 2, shift it left one bit. This instruction shifts a r4’s value left one bit and stores the result in r3: 1s1 r3, r4 , #1 in ARM, things in [ ] are treated as a memory address. For example, the following instruction loads the value in memory at the address contained in r4 plus 2 (r3 Mem[r4+2]): ldr r3, [r4, #2] There are many ways to do this Chard) problem. If you want to try and use fewer instructions, look up ARMv7 addressing modes or ask your instructor for tips. @param r0: the base address of the array (pointer) *@param rl: the number of elements in the array * @returns the sum of the elements in the array global sumArray type sumArray, %function sumArray: TODO: finish this procedure here /* return from this procedure (jump to 1r) */ Show transcribed image text This function adds two arguments and returns the result. Remember that the return value is placed in rO before returning. @param r0: first arg, x param rl: second arg, y *@returns the sumof the two .global add type add, %function add TODO: finish this procedure here. */ /* return from this procedure (jump to 1r) */ bx 1r * This function returns the greater of two arguments. You will need to do a comparison for this. Remember that cmp sets all the CSPR registers (EQ, ZERO, etc) and the next *instruction can use them. (BEQ, BLE, etc). HINT: to copy the value of a register into another, use the “mov” *instruction: mov r0, rl ; copies value of rl into rO *param r0: first arg, x param rl: second arg, y *areturns the greater value of x or y .global greater type greater, %function greater: TODO: finish this procedure here* /* return from this procedure (jump to 1r) */ This function sums an array. *You’11 need a loop for this, and will probably want to *use a few registers as temporary storage. *Some hints: to multiply the value in a register by 2, shift it left one bit. This instruction shifts a r4’s value left one bit and stores the result in r3: 1s1 r3, r4 , #1 in ARM, things in [ ] are treated as a memory address. For example, the following instruction loads the value in memory at the address contained in r4 plus 2 (r3 Mem[r4+2]): ldr r3, [r4, #2]
There are many ways to do this Chard) problem. If you want to try and use fewer instructions, look up ARMv7 addressing modes or ask your instructor for tips. @param r0: the base address of the array (pointer) *@param rl: the number of elements in the array * @returns the sum of the elements in the array global sumArray type sumArray, %function sumArray: TODO: finish this procedure here /* return from this procedure (jump to 1r) */

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