我有一些从 Github 获得的程序集合并排序代码，我正在尝试将其嵌入到 C++ 中的内联程序集中，但它不会编译并不断返回这些错误：
1>c:\users\mayank\desktop\assembly\assembly\main.cpp(147): 错误 C2415: 不正确的操作数类型
我试图运行的代码是这样的：
#include <iostream>
#include <cmath>
#include <stdio.h>
using namespace std;
const int ARRAYSIZE = 30;
int main()
{
int arr[ARRAYSIZE];
int temp_arr[ARRAYSIZE];
int number;
for(int x = 0; x < ARRAYSIZE; x++)
{
number = (rand() % 99) + 1;
arr[x] = number;
}
/*
READ_ARR_LEN:
__asm
{
// Read the length of the array
//GetLInt [30] // Size of input array
//PutLInt [30]
}
GET_ARRAY:
__asm
{
//intel_syntax
// Get values in arr from the user
mov EAX, arr
mov ECX, ARR_LEN
call Read_Arr
// Run Merge Sort on the array
mov EAX, arr
mov EBX, temp_arr
mov ECX, ARR_LEN
call Merge_Sort
// EXIT
};;
*/
Merge_Sort:
__asm
{
// EAX - Array start
// ECX - array length
// Arrays of size 0 or 1 are already sorted
cmp ARRAYSIZE, 2
jl Trivial_Merge_Sort
// Merge_Sort (first half)
// Length of the first half
// ECX /= 2
push ARRAYSIZE
shr ARRAYSIZE, 1
call Merge_Sort
pop ARRAYSIZE
// Merge_Sort (second half)
push arr
push EBX
push ARRAYSIZE
// Length of the second half
// ECX = ECX - ECX/2
mov EDX, ARRAYSIZE
shr EDX, 1
sub ARRAYSIZE, EDX
imul EDX, 4
// Start index of the second half
// EAX = EAX + (ECX/2) * 4
add arr, EDX
push EDX
call Merge_Sort
pop EDX
pop ARRAYSIZE
pop EBX
pop arr
pushad
// Merge (first half, second half)
// Length of first half = ECX/2
// Length of second half = ECX - ECX/2
mov EDX, ECX
shr ECX, 1
sub EDX, ECX
// Start of second half = EAX + (ECX/2) * 4
mov EBX, EAX
mov EDI, ECX
imul EDI, 4
add EBX, EDI
// Index of temp array = 0
sub EDI, EDI
call Merge
popad
// Copy back the merged array from temp_arr to arr
call Merge_Copy_Back_Temp
ret
};
Trivial_Merge_Sort:
__asm
{
// In case of arrays of length 0 or 1
ret
};
Merge:
__asm
{
// Merge two arrays contents.
// The final merged array will be in temp_arr
// Merging is done recursively.
// Arguments:
// EAX - First array's start
// EBX - Second array's start
// ECX - Length of first array
// EDX - Length of second array
// EDI - Index in temp array
pushad
// Handle the cases where one array is empty
cmp ARRAYSIZE, 0
jz First_Array_Over
cmp EDX, 0
jz Second_Array_Over
// Compare first elements of both the arrays
push ARRAYSIZE
push EDI
mov ARRAYSIZE, [arr]
mov EDI, [ARRAYSIZE]
cmp ARRAYSIZE, EDI
pop EDI
pop ARRAYSIZE
// Pick which ever is the least and update that array
jl Update_First_Array
jmp Update_Second_Array
};
Update_First_Array:
__asm
{
// min_elem = min (first elements of first array and second array)
// Put min_elem into the temp array
push dword ptr [EAX]
pop dword ptr [temp_arr + EDI * 4]
add EAX, 4
dec ECX
inc EDI
// Recursively call Merge on the updated array and the
// other array
call Merge
popad
ret
};
Update_Second_Array:
__asm
{
// min_elem = min (first elements of first array and second array)
// Put min_elem into the temp array
push dword ptr [EBX]
pop dword ptr [temp_arr + EDI * 4]
add EBX, 4
dec EDX
inc EDI
// Recursively call Merge on the updated array and the
// other array
call Merge
popad
ret
};
Merge_Copy_Back_Temp:
__asm
{
// Copy back the temp array into original array
// Arguments:
// EAX - original array address
// ECX - original array length
pushad
// For copying back, the destination array is EAX
mov EBX, EAX
// Now, the source array is temp_arr
mov EAX, temp_arr
call Copy_Array
popad
ret
};
Trivial_Merge:
__asm
{
// Note: One array is empty means no need to merge.
popad
ret
};
First_Array_Over:
__asm
{
// Copy the rest of the second array to the temp arr
// because the first array is empty
pushad
mov EAX, EBX
mov ECX, EDX
mov EBX, temp_arr
imul EDI, 4
add EBX, EDI
call Copy_Array
popad
popad
ret
};
Second_Array_Over:
__asm
{
// Copy the rest of the first array to the temp arr
// because the second array is empty
pushad
mov EBX, temp_arr
imul EDI, 4
add EBX, EDI
call Copy_Array
popad
popad
ret
};
Copy_Array:
__asm
{
// Copy array to destination array
// EAX - Array start
// EBX - Destination array
// ECX - Array length
// Trivial case
cmp ECX, 0
jz Copy_Empty_Array
push ECX
sub EDI, EDI
};
copy_loop:
__asm
{
// Copy each element
push dword ptr [EAX + EDI * 4]
pop dword ptr [EBX + EDI * 4]
inc EDI
loop copy_loop
pop ECX
ret
};
Copy_Empty_Array:
__asm
{
ret
};
Read_Arr:
__asm
{
// EAX - array start
// ECX - array length
mov ESI, EAX
sub EDI, EDI
};
loop1:
__asm
{
// Read each element
lea eax,[esi+edx*4]
inc EDI
loop loop1
ret
};
return 0;
}