uses this is value for macro proc ?

The uses clause is defned by the proc macro. It generates multiple push instructions. And ret generates multiple pop instructions in reverse.

Code:

use32
include 'macro/proc32.inc'
jmp foo
proc foo uses eax ebx ecx edx esi edi ebp esp
endp

Code:

00000000  EB00              jmp short 0x2
00000002  50                push eax
00000003  53                push ebx
00000004  51                push ecx
00000005  52                push edx
00000006  56                push esi
00000007  57                push edi
00000008  55                push ebp
00000009  54                push esp

And with ret

Code:

use32
include 'macro/proc32.inc'
jmp foo
proc foo uses eax ebx ecx edx esi edi ebp esp
        ret
endp

Code:

00000000  EB00              jmp short 0x2
00000002  50                push eax
00000003  53                push ebx
00000004  51                push ecx
00000005  52                push edx
00000006  56                push esi
00000007  57                push edi
00000008  55                push ebp
00000009  54                push esp
0000000A  5C                pop esp
0000000B  5D                pop ebp
0000000C  5F                pop edi
0000000D  5E                pop esi
0000000E  5A                pop edx
0000000F  59                pop ecx
00000010  5B                pop ebx
00000011  58                pop eax
00000012  C3                ret