//Project2.s MysteryFunction1: movl $1, %eax // jmp .L2 .L3: imulq %rdi, %rax movl %edx, %esi .L2: leal -1(%rsi), %edx testl %esi, %esi jg .L3 ret MysteryFunction2: movl $0, %edx movl $0, %ecx jmp .L5 .L6: addl $1, %ecx .L5: cmpl $31, %ecx ja .L8 movl $1, %eax sall %cl, %eax testl %edi, %eax je .L6 movl $-2147483648, %eax shrl %cl, %eax orl %eax, %edx jmp .L6 .L8: movl %edx, %eax ret MysteryFunction3: movq (%rdi), %rcx movl $1, %eax jmp .L10 .L11: addl $1, %eax .L10: cmpl %esi, %eax jge .L14 movslq %eax, %rdx movq (%rdi,%rdx,8), %rdx cmpq %rcx, %rdx jle .L11 movq %rdx, %rcx jmp .L11 .L14: movq %rcx, %rax ret MysteryFunction4: movl $0, %eax jmp .L16 .L17: movl %edi, %edx andl $1, %edx addl %edx, %eax shrq %rdi .L16: testq %rdi, %rdi jne .L17 ret MysteryFunction5: xorl %esi, %edi movl $0, %eax jmp .L19 .L20: movl %edi, %edx andl $1, %edx addl %edx, %eax sarl %edi .L19: testl %edi, %edi jne .L20 ret //Project2.c /* * CSCI3240: Project 2 * * * * Project2.c - Source file with your solutions to the Lab. * This is the file you will submit in the D2L -> Project2 dropbox. * * Make sure you have insightful comments in your code. * */ long MysteryFunction1(long a, int b){ //TODO //check assembly code for MysteryFunction1 in project3.s } unsigned int MysteryFunction2(unsigned int num) { //TODO //check assembly code for MysteryFunction2 in project3.s } long MysteryFunction3(long *a, int n){ //TODO //check assembly code for MysteryFunction3 in project3.s } int MysteryFunction4(unsigned long n) { //TODO //check assembly code for MysteryFunction4 in project3.s } unsigned int MysteryFunction5(unsigned int A, unsigned int B) { //TODO //check assembly code for MysteryFunction5 in project3.s } Please help me read these mystery functions to c code.
//Project2.s
MysteryFunction1:
movl $1, %eax //
jmp .L2
.L3:
imulq %rdi, %rax
movl %edx, %esi
.L2:
leal -1(%rsi), %edx
testl %esi, %esi
jg .L3
ret
MysteryFunction2:
movl $0, %edx
movl $0, %ecx
jmp .L5
.L6:
addl $1, %ecx
.L5:
cmpl $31, %ecx
ja .L8
movl $1, %eax
sall %cl, %eax
testl %edi, %eax
je .L6
movl $-2147483648, %eax
shrl %cl, %eax
orl %eax, %edx
jmp .L6
.L8:
movl %edx, %eax
ret
MysteryFunction3:
movq (%rdi), %rcx
movl $1, %eax
jmp .L10
.L11:
addl $1, %eax
.L10:
cmpl %esi, %eax
jge .L14
movslq %eax, %rdx
movq (%rdi,%rdx,8), %rdx
cmpq %rcx, %rdx
jle .L11
movq %rdx, %rcx
jmp .L11
.L14:
movq %rcx, %rax
ret
MysteryFunction4:
movl $0, %eax
jmp .L16
.L17:
movl %edi, %edx
andl $1, %edx
addl %edx, %eax
shrq %rdi
.L16:
testq %rdi, %rdi
jne .L17
ret
MysteryFunction5:
xorl %esi, %edi
movl $0, %eax
jmp .L19
.L20:
movl %edi, %edx
andl $1, %edx
addl %edx, %eax
sarl %edi
.L19:
testl %edi, %edi
jne .L20
ret
//Project2.c
/*
* CSCI3240: Project 2
*
* <Please put your name and userid here>
*
* Project2.c - Source file with your solutions to the Lab.
* This is the file you will submit in the D2L -> Project2 dropbox.
*
* Make sure you have insightful comments in your code.
*
*/
long MysteryFunction1(long a, int b){
//TODO
//check assembly code for MysteryFunction1 in project3.s
}
unsigned int MysteryFunction2(unsigned int num)
{
//TODO
//check assembly code for MysteryFunction2 in project3.s
}
long MysteryFunction3(long *a, int n){
//TODO
//check assembly code for MysteryFunction3 in project3.s
}
int MysteryFunction4(unsigned long n)
{
//TODO
//check assembly code for MysteryFunction4 in project3.s
}
unsigned int MysteryFunction5(unsigned int A, unsigned int B)
{
//TODO
//check assembly code for MysteryFunction5 in project3.s
}
Please help me read these mystery functions to c code.
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