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.
WinMips64 doesn't appear to use syscall for terminal output like SPIM / MARS, but rather implements it using memory-mapped I/O (see this example code).
The CONTROL port is located at address 0x10000, and the DATA port at address 0x10008.
Since you're printing integers you'll be interested mainly in these two output modes:
; Set CONTROL = 1, Set DATA to Unsigned Integer to be output
; Set CONTROL = 2, Set DATA to Signed Integer to be output
For example:
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