assembly - The usage of push in 16bit - tasm - 


.data         sum dw 250h .text      push sum      call func      ....  func:       mov bp, sp       mov ax, [bp + 2]       inc ax       mov [bp + 2], ax       .....

when use push instruction push reference of sum, or value? , sum changes after call func?

you want dereference address pass function

.data         sum dw 250h .text      push [sum]      call func      ....  func:      mov bp, sp      mov bx, [bp + 2]      mov ax,[bx]      inc ax      mov [bx],ax      mov [bp + 2], ax      .....

that seems roundabout, , i'm sure there's easier way don't have machine tasm handy. roundabout since can't use [ax] :(


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