Overview

Practice calling C functions from x86_64 assembly code AND x86_64 assembly functions from C code. Refer to the lecture slides and x86_64 documentation.

Procedure

1. Create an assembly program (asm_program.asm) which calls a C function (c_function.c).
   • Your C function should take one argument [a pointer to a character string] and print it (eg. printstring(const char* mystring)).
   • Your assembly program should call the C function to print out a haiku (classic or self-authored) of your choosing, and the author's name.
   • Your haiku should be declared and defined in asm_program.asm [NOT in c_function.c].
   • Compile and link your code to make an executable (asm_program).
2. Create a C program (c_program.c) which calls an assembly function (asm_function.asm).
   • Your assembly function should take one argument [a pointer to a character string] and print it.
   • Your C program should call the assembly function to print out a haiku (classic or self-authored) of your choosing, and the author's name.
   • Your haiku should be declared and defined in c_program.c [NOT in asm_function.asm].
   • Compile and link your code to make an executable (c_program).
3. Additional Information
   • Use insightful comments in the code to illustrate what is happening on each step.
   • Include a header in each source code file with the relevant information for assignments as defined in the syllabus.
   • Read the submission requirements in the syllabus and above/below instructions carefully before submitting your work for grading.

Requirements

• As always, all requirements from the course and lab syllabus apply.
• Submit all requested files (listed below) as a single ZIP archive.
• Make sure your file names match exactly with the requested file names.
• A zipped file containing:
  • asm_program.asm
  • asm_function.asm
  • c_program.c
  • c_function.c
  • asm_program
  • c_program