HP(ﾟ∀ﾟ) > KAIZO（´∀｀) > KAISEKI(^ｗ^） > ASM(・∀・)

EUCてきすとをSJISに変換する

//converteuc2sjis
la	t0,euc
la	t1,output
loop:
lbu	t4,0x0(t0)	#c1
lbu	t5,0x1(t0)	#c2
beq	t4,zr,NULLowata
addiu	t6,t4,0x5F	#euc判定
andi	t7,t6,0xFF
sltiu	at,t7,0x5E
beq	at,zr,半角カナ
andi	at,t4,1	#c1奇数
andi	t5,t5,0x7f
beql	at,zr,c1処理
addiu	t5,t5,0x7E	#c2=0x7e
addiu	t5,t5,0x20	#c2=0x20
andi	at,t5,0x80
beql	at,zr,+2
addiu	t5,t5,-1	#c2+=0x1F
c1処理:
andi	t4,t4,0x7f	#c1処理
addiu	t6,t4,-1
srl	t7,t6,1
addiu	t6,t7,0x91
xori	t4,t6,0x20
sb	t4,0(t1)
sb	t5,1(t1)
addiu	t0,t0,2
beq	zr,zr,loop
addiu	t1,t1,2
半角カナ:
ori	t2,zr,0x8E	#8E,SS1
bne	t2,t4,ascii
sb	t5,0(t1)
addiu	t0,t0,2
beq	zr,zr,loop
addiu	t1,t1,1
ascii:
sb	t4,0(t1)
addiu	t0,t0,1
beq	zr,zr,loop
addiu	t1,t1,1
NULLowata:
jr	ra
setpc	0x1100
sjis:
.string932	A｡ｱ亜唖娃阿哀愛挨姶逢葵茜穐悪握渥旭葦芦鯵梓圧斡扱宛姐虻飴絢綾鮎或粟袷安庵按暗案闇鞍杏以伊位依偉囲夷委威尉惟意慰易椅為畏異移維緯胃萎衣謂違遺医井亥域育郁磯一壱溢逸稲茨芋鰯允印咽員因姻引飲淫胤蔭院陰隠韻吋右宇烏羽迂雨卯鵜窺丑碓
setpc	0x1200
output:
setpc	0x1300
euc:
.string51932	A｡ｱ亜唖娃阿哀愛挨姶逢葵茜穐悪握渥旭葦芦鯵梓圧斡扱宛姐虻飴絢綾鮎或粟袷安庵按暗案闇鞍杏以伊位依偉囲夷委威尉惟意慰易椅為畏異移維緯胃萎衣謂違遺医井亥域育郁磯一壱溢逸稲茨芋鰯允印咽員因姻引飲淫胤蔭院陰隠韻吋右宇烏羽迂雨卯鵜窺丑碓

HP(ﾟ∀ﾟ) > KAIZO（´∀｀) > KAISEKI(^ｗ^） > ASM(・∀・)