Write an Assembly program that uses a function to perform this calculation. Call this function twice with two different Ray values and print the output from main each time. The function must receive the Ray value in %rdi and return the Numtow result in %rax. Do the output from main using printf with a format string, as we did in the labs. If the format string shows the Ray value first, then the Numtow value (eg. \"2 Rays = -10 Numtows\"), put the Ray value in %rsi and the Numtow value in %rdx before calling printf.
Solution
For your compilation, do not use callee saved registers – in other words, only use the following registers: • %rax: for the return value and/or intermediate storage • %rsp: the stack pointer • %rdi, %rsi, and %rdx: the registers used for passing in the three arguments • %rcx, %r8, and %r9: the three unused argument-passing registers • %r10, and %r11: the other two caller-saved registers
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Write an Assembly program that uses a function to perform this calcula.docx
1. Write an Assembly program that uses a function to perform this calculation. Call this function
twice with two different Ray values and print the output from main each time. The function must
receive the Ray value in %rdi and return the Numtow result in %rax. Do the output from main
using printf with a format string, as we did in the labs. If the format string shows the Ray value
first, then the Numtow value (eg. "2 Rays = -10 Numtows"), put the Ray value in %rsi and the
Numtow value in %rdx before calling printf.
Solution
For your compilation, do not use callee saved registers – in other words, only use the following
registers: • %rax: for the return value and/or intermediate storage • %rsp: the stack pointer
• %rdi, %rsi, and %rdx: the registers used for passing in the three arguments • %rcx, %r8,
and %r9: the three unused argument-passing registers • %r10, and %r11: the other two caller-
saved registers
