NettetThe LOOP instruction assumes that the ECX register contains the loop count. When the loop instruction is executed, the ECX register is decremented and the control jumps to the target label, until the ECX register value, i.e., the counter reaches the value zero. The above code snippet could be written as −. mov ECX,10 l1: loop l1. http://www2.hawaii.edu/~pager/312/notes/06OperandsAndAddressing/
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Nettetmov cx, count ; cx = message length L_top: mov dl, message[si] ; move current value into dl int 21h ; display character inc si ; next offset position in array loop L_top ; repeat until … Nettet2. jul. 2012 · 若s1 db 0,1,2,3,4,5 count equ $ -s1 mov cl,count. 为什么cl最后的值为0b... 为什么cl最后的值为0b ... pioneer blu ray home theater system snpmar23
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Nettet6. mai 2024 · 1 Answer. Setting COUNT to 0Fh seems wrong as your array contains 7 elements, not 15. You might also have an off-by-one error, since your loop iterates COUNT times but has already processed the 0th element of the array before entering. Either that or you want to set COUNT to the number of elements minus 1. These are all 8-bit … Nettet20. des. 2024 · MOV指令，能实现以下操作： CPU内部寄存器之间数据的任意传送 (除了码段寄存器CS和指令指针IP以外)。 立即数传送至CPU内部的通用寄存器组 (即AX、BX … Nettet12. mai 2024 · So you can replace the following code by the instruction TEST AX, 1: MOV DX,0000 MOV BH,00 MOV BL,02 DIV BX CMP DX,0 And you can even use TEST WORD [SI], 1 to directly check the bit in a number from the array, so you don't even need to use MOV AX, [SI] to load the value into the AX register. Share Improve this answer Follow pioneer blu-ray disc ドライブ