;首先上源代码~~
;本意是构造一个循环队列，先入后出
;但是根本就生成不了可执行文件啊……
;==============================================

.686P
.MODEL                FLAT, STDCALL
.STACK                4096
option casemap:none        ;

;----------------------------------------------

    printf    PROTO    C    :PTR BYTE,    :VARARG
    scanf    PROTO    C    :DWORD,    :VARARG
    gets    PROTO    C    :PTR BYTE
    getchar    PROTO    C

ExitProcess    PROTO        :DWORD

;----------------------------------------------

INCLUDELIB  msvcrt.lib;
   
;----------------------------------------------

    Esc_key    EQU            27

    exit    EQU            <INVOKE ExitProcess,0>
    PBYTE    TYPEDEF        PTR    BYTE


    chr$ MACRO any_text:VARARG
        LOCAL txtname
        .data
          txtname db any_text,0
        .code
        EXITM <OFFSET txtname>
      ENDM

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



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

.data?
    buf        BYTE    16 dup(?)
    chr        BYTE    ?
.data
    op        PBYTE    buf
    ip        PBYTE    buf
    B_COUNT    DWORD    0

;----------------------------------------------

.code;-----------------------------------------
;READ_CHR--------------------------------------
main    PROC
READ_CHR:
    INVOKE    printf,    chr$("Input an character: A letter will be added into the buffer. A '-' will remove and output a letter from the buffer. A '0'will terminate the program.");??????????????????
    INVOKE    scanf,    chr$("%c"),offset chr;
    INVOKE    getchar

    call    QUE_CHECK
    mov        AL,    chr;

I_cmp1:
    cmp        AL,45d;??????????????????????????????
    jne        I_cmp2
    call    OQ;
    jmp        READ_CHR

I_cmp2:
    cmp        AL,Esc_key;
    jne        I_cmp3
    exit

I_cmp3:
    cmp        AL,65d
    jb        I_cmp4
    call    IQ
    jmp        READ_CHR

I_cmp4:
    cmp        AL,90d
    ja        I_cmp5
    call    IQ
    jmp        READ_CHR

I_cmp5:
    cmp        AL,97d
    JB        I_cmp6
    call    IQ
    jmp        READ_CHR

I_cmp6:
    cmp        AL,122d
    JA        READ_CHR
    call    IQ
    jmp        READ_CHR

main    ENDP


    ;----------------------------------------------
    ;QUE_CHECK-------------------------------------
    ;??????????????????????????????????????????????
    ;----------------------------------------------
    QUE_CHECK    PROC    USES EAX

    QC_cmp1:        
        cmp        B_COUNT,0
        ja        QC_cmp2
        INVOKE    printf,chr$("Warning: The buffer is empty.");
        jmp        QC_ret

    QC_cmp2:
        cmp        B_COUNT,16
        jb        QC_ret
        INVOKE    printf,chr$("Warning: The buffer is full.");

    QC_ret:
        RET
            
    QUE_CHECK ENDP
    ;----------------------------------------------
    ;IQ--------------------------------------------
    ;??????????????????????????????????????????????
    ;----------------------------------------------
    IQ            PROC
        cmp        B_COUNT,16
        je        IQ_ret

    IQ_push:
        push    EAX
        push    EBP

    IQ_prep:
        mov        EAX,offset buf
        cmp        EAX,16
        je        IQ_tail
        mov        EBP,ip

    IQ_norm:
        mov        AL,chr;======================================
        mov        [EBP],AL;====================================此处报错
        dec        EBP
        inc        B_COUNT
        jmp        IQ_pop

    IQ_tail:
        mov        AL,chr;======================================
        mov        [EBP],AL;====================================此处报错
        mov        EBP,offset buf
        inc        B_COUNT
        jmp        IQ_pop

    IQ_pop:
        mov        ip,EBP
        pop        EBP
        pop        EAX

    IQ_ret:
        RET

    IQ            ENDP
    ;----------------------------------------------
    ;OQ--------------------------------------------
    ;??????????????????????????????????????????????
    ;----------------------------------------------
    OQ            PROC
        cmp        B_COUNT,0
        je        OQ_ret

    OQ_push:
        push    EAX
        push    EBP

    OQ_prep:
        mov        EAX,offset buf
        sub        EAX,op
        je        OQ_head
        mov        EBP,op

    OQ_norm:
        mov        AL,[EBP]
        mov        chr,AL
        INVOKE    printf,chr$("%c",chr)
        dec        EBP

    OQ_head:
        mov        AL,[EBP]
        mov        chr,AL
        INVOKE    printf,chr$("%c",chr)
        mov        EBP,offset buf
        sub        EBP,16

    OQ_pop:
        mov        op,EBP
        pop        EBP
        pop        EAX

    OQ_ret:
        RET


    OQ            ENDP
;----------------------------------------------
END main



;点击生成之后出现如下信息：
;1>------ 已启动生成: 项目: Buffer, 配置: Debug Win32 ------
;1>  Assembling [Inputs]...
;1>..\Buffer1.asm(185): error A2071: initializer magnitude too large for specified size
;1>..\Buffer1.asm(191): error A2071: initializer magnitude too large for specified size
;1>C:\Program Files (x86)\MSBuild\Microsoft.Cpp\v4.0\BuildCustomizations\masm.targets(49,5): error MSB3721: 命令“ml.exe /c /nologo /Zi /Fo"Debug\Buffer1.obj" /I "C:\Code\ASM\IrvineExamplesVS2010a" /W3 /errorReport:prompt  /Ta..\Buffer1.asm”已退出，返回代码为 1。
;========== 生成: 成功 0 个，失败 1 个，最新 0 个，跳过 0 个 ==========