QCMP.ASM
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上传日期:2022-06-13
资源大小:1853k
文件大小:1k
源码类别:
TCP/IP协议栈
开发平台:
DOS
- PAGE 66,132
- ;
- ;
- ;
- ;
- ;
- ;
- ;
- ;
- ; qcmp.asm
- ;
- ; Efficient compare operation. Does not handle segment wraps!!!!
- ; Returns 0 if compare is identical
- ;
- ;
- ; Usage :
- ; qcmp( soff, sseg, doff, dseg, count )
- ; unsigned int soff; /* source offset */
- ; unsigned int sseg; /* source segment */
- ; unsigned int doff; /* destination offset */
- ; unsigned int dseg; /* destination segment */
- ; unsigned int count; /* byte count */
- ;
- ; (c) 1991 Erick Engelke
- ;
- ; version
- ;
- ; 0.0 31-Oct-1990 E. P. Engelke - brief version
- ;
- ;
- include masmdefs.hsm
- include model.hsm
- codedef QCMP
- datadef
- cstart QCMP
- cpublic qcmp
- mov DX, DS
- mov BX, ES ;save segment registers
- lds SI, +@AB+0[BP]
- les DI, +@AB+4[BP]
- mov CX, +@AB+8[BP] ;byte count
- cld
- repe cmpsb
- mov AX, CX
- mov ES, BX
- mov DS, DX
- creturn qcmp
- cend QCMP
- end