试图在MIPS中编写一个包含分支语句的循环。但是,我从来没有一起做过,而且调试起来很困难。我知道分支是正确的,但是循环出问题了吗?
changeCase:
loop:
#counter
beq $t7, 10, endloop #if $t7 = 10 then end
lbu $t1, 0($a0)
#beqz $t1, exit
#if less than 91, add 32
#if greater than 97, sub 32
slti $t0, $t1, 91
beq $t0, 0, else
addi $a1, $t1, 32
add $t6, $t7, 1 #add 1 to counter t7
move $t6, $t7
j endif
else:
subi $a1, $t1, 32
add $t6, $t7, 1 #add 1 to counter t7
move $t6, $t7
j loop
endif:
j loop
#exit:
#jr $ra
endloop:
jr $ra