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我对汇编语言非常陌生,在课堂上我们正在使用LC3模拟器开展分部程序。 下面是我的分割算法的代码。Assembly:LC3 Division
DIVISION:
AND R3, R3, 0 ; Zero out R3 /This is the remainder
AND R4, R4, 0 ; Zero out R4 /This is the quotient
NOT R3, R2 ; Takes the inverse of 2nd input ->R3
ADD R3, R3 #1 ; Add one to the inverse (for 2s comp)
LOOPD
ADD R4, R4, #1 ; Add 1 to R4 repeatedly
ADD R1, R1, R3 ; Subtract input2 from R1
BRN NEGATIVE
BRZ ZERO
BRP LOOPD
NEGATIVE
ADD R4, R4, #-1
ADD R3, R1, R2
; Done with divison algorithm.
ZERO
LD R0, DECCONV ; Load Decimal converter
ADD R3, R3, R0 ; Convert back to ASCII
ADD R4, R4, R0 ; Convert back to ASCII
ST R3, REMRESULT ; Store the remainder result
ST R4, DIVRESULT ; Store the division result.
LD R0, DIVRESULT ; Load Division result into R0
PUTC ; Print it.
LEA R0, DIVSTRING ; Load the string for division.
PUTS ; Print the string.
LD R0, REMRESULT ; Load Remainder result into R0
PUTC ; Print it.
LEA R0, REMSTRING ; Load the string for remainder
PUTS ; Print the string.
当我输入两个输入,例如:4和2 我得到2的商和1的其余部分。 当我输入9,3时,我得到6个余数1 ..
任何想法?