?? qmove.asm
字號:
PAGE 66,132
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; qmove.asm
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; Efficient move operation. Does not handle segment wraps!!!!
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;
; Usage :
; move( 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) 1984 Erick Engelke
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; version
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; 0.2 31-Oct-1990 E. P. Engelke - brief version
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;
include masmdefs.hsm
include model.hsm
codedef QMOVE
datadef
cstart QMOVE
cpublic qmove
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
shr CX, 1
cld
rep movsw
jnc @1
movsb
@1:
mov DS,DX
mov ES,BX
creturn qmove
cend QMOVE
end
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