Sheng Jiang 蒋晟

;=====================================================================

; lab5.asm – build a program that displays the Fibonacci numbers for a user defined input upper bound

; Author: Sheng_Jiang

; Course: COSC 2425

; Date: 6/15/05

;=====================================================================

.386

.MODEL flat, stdcall

option casemap:none

include windows.inc ; always first

include macros.asm ; MASM support macros

; —————————————————————–

; include files that have MASM format prototypes for function calls

; —————————————————————–

include masm32.inc

include gdi32.inc

include user32.inc

include kernel32.inc

; ————————————————

; Library files that have definitions for function

; exports and tested reliable prebuilt code.

; ————————————————

includelib masm32.lib

includelib gdi32.lib

includelib user32.lib

includelib kernel32.lib

;costants

CR EQU 0Dh

LF EQU 0Ah

DOCOMMAND_CONTINUE equ 1

DOCOMMAND_END equ 0

.Data

menuSelection DWORD 0

DoCommandResult DWORD 0

.Code

ShowMenu Proc

print chr$("Menu",CR,LF,"[I,N,F,X]")

ret

ShowMenu EndP

;

;usage:

;push someThingToAllocateTheReturnValue

;push command

;call DoCommand

;pop command

;pop someThingToAllocateTheReturnValue

;the return value can be one of the following:

; DOCOMMAND_CONTINUE equ 1

; DOCOMMAND_END equ 0

DoCommand PROC

push ebp

mov ebp, esp

push eax

push ebx

mov bl, BYTE PTR [ebp+8]

cmp bl, ‘x’

je DoCommandEnd

cmp bl, ‘X’

je DoCommandEnd

mov eax, DOCOMMAND_CONTINUE

jmp DoCommandCleanup

DoCommandEnd:

mov eax, DOCOMMAND_END

DoCommandCleanup:

mov [ebp+12],eax

pop ebx

pop eax

mov esp,ebp

pop ebp

ret

DoCommand ENDP

main PROC

int 3

cls

ShowMenuLoop:

call ShowMenu

mov menuSelection, input()

push DoCommandResult

mov eax,menuSelection

push [eax]

call DoCommand

pop menuSelection

pop DoCommandResult

cmp DoCommandResult,DOCOMMAND_CONTINUE

je ShowMenuLoop

exit

main ENDP

END main