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How can I print an array in Mips64? I've succeeded in printing the array in QtSPIM (MIPS32), with this code:

.data
array:  .word   10 20 30 40 50

.text
#load base address of array
la $t1,array    
#load number of elements
ld $t2,num

loop:

#load word
lw $a0, ($t1)

#print element
li $v0,1
syscall

#print space
la $a0, space
li $v0,4
syscall

addi $t1,4
#increase counter
addi $t0, 1

bne $t0,$t2,loop


#end
li  $v0,10
syscall

I know that MIPS64 has daddi instead of addi but I am still missing something.

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1 回答 1

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WinMips64 似乎不syscall用于 SPIM / MARS 之类的终端输出，而是使用内存映射 I/O 来实现它（请参阅此示例代码）。

CONTROL端口位于 address ，端口0x10000位于DATAaddress 0x10008。

由于您要打印整数，因此您主要对这两种输出模式感兴趣：

; Set CONTROL = 1, Set DATA to Unsigned Integer to be output
; Set CONTROL = 2, Set DATA to Signed Integer to be output

例如：

ori $a1,$0,0
lui $a1,1       ; $a1 = 0x10000 (CONTROL)
ori $a2,$a1,8   ; $a2 = 0x10008 (DATA)

lwu $a0,($t1)   ; load an unsigned 32-bit value
ori $v0,$0,1    ; 1 == print unsigned integer
sd $a0, ($a2)   ; set value to print        
sd $v0, ($a1)   ; ..and write the command to print it
于 2013-05-10T23:16:27.613 回答