Assembly mips程序可以'；t计算mips/mflo/sw
我想写一个程序，把十进制数转换成二进制数。为此，我将使用数组。请看下面注释的行，并告诉我为什么它可能不工作，因为spim模拟器说试图执行非指令Assembly mips程序可以'；t计算mips/mflo/sw,assembly,mips,Assembly,Mips,我想写一个程序，把十进制数转换成二进制数。为此，我将使用数组。请看下面注释的行，并告诉我为什么它可能不工作，因为spim模拟器说试图执行非指令 .text .globl __start __start: la $a0,prompt li $v0,4 syscall li $v0,5 syscall move $t1,$v0 li $t0,0
.text
.globl __start
__start:
la $a0,prompt
li $v0,4
syscall
li $v0,5
syscall
move $t1,$v0
li $t0,0
la $t2,bin
#add $t2,$t2,124
lop:
div $t1,$t1,2
mflo $v0
sw $v0,($t2) #right here
add $t2,$t2,4
add $t0,$t0,1
ble $t0,32,lop
j dnn
ads:
la $a0,spc
li $v0,4
syscall
j back
dnn:
la $t0,bin
li $t3,1
la $a0,pr2
li $v0,4
syscall
add $t0,$t0,124
lp2:
lw $t1,($t0)
sub $t0,$t0,4
add $t3,$t3,1
move $a0,$t1
li $v0,5
syscall
div $t4,$t3,4
mflo $t4
ble $t4,0,ads
back:
ble $t3,33,lp2
li $v0,10
syscall
.data
prompt: .asciiz "Enter decimal: "
spc: .asciiz " "
pr2: .asciiz "\nbinary value:\n"
bin: .space 128
[0x00400020] 0x3c011001 lui $1, 4097 [bin] ; 15: la $t2,bin
[0x00400024] 0x342a0022 ori $10, $1, 34 [bin]
[0x00400028] 0x34010002 ori $1, $0, 2 ; 17: div $t1,$t1,2
[0x0040002c] 0x0121001a div $9, $1
[0x00400030] 0x00004812 mflo $9
[0x00400034] 0x00001012 mflo $2 ; 18: mflo $v0
[0x00400038] 0xad420000 sw $2, 0($10) ; 19: sw $v0,($t2)
为什么mflo要做两次？
mflo div $v0,$t1,2
如果您将其更改为
sw$v0，0（$t2）bin:bin: