String case: Difference between revisions
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Lower Case of alphaBETA is alphabeta
</pre>
=={{header|MIPS Assembly}}==
This example modifies a string in place.
<lang mips>ToUpper:
;input: $a0 = pointer to beginning of string
;clobbers: $t0,$t1,$t2
li $t1,'a'
li $t2,'z'
ToUpper_again:
lb $t0,($a0)
nop
beq $t0,ToUpper_done ;if char is null terminator, exit
nop
bltu $t0,$t1,ToUpper_overhead ;if char stored in $t0 < 'a', skip
nop
bgtu $t0,$t2,ToUpper_overhead ;if char stored in $t0 > 'z', skip
nop
andi $t0,$t0,0xDF ;otherwise, do the work.
sb $t0,($a0)
ToUpper_overhead:
addiu $a0,1
b ToUpper_again
nop
ToUpper_done:
jr ra
nop
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
ToUpper:
;input: $a0 = pointer to beginning of string
;clobbers: $t0,$t1,$t2
li $t1,'A'
li $t2,'Z'
ToLower_again:
lb $t0,($a0)
nop
beq $t0,ToUpper_done ;not a typo, I did this to save space.
nop
bltu $t0,$t1,ToLower_overhead ;if char stored in $t0 < 'a', skip
nop
bgtu $t0,$t2,ToLower_overhead ;if char stored in $t0 > 'z', skip
nop
ori $t0,$t0,0x20
sb $t0,($a0)
ToLower_overhead:
addiu $a0,1
b ToLower_again
nop</lang>
=={{header|mIRC Scripting Language}}==
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