Adds tolower(), toupper()

src/tests.asm

@@ -4,6 +4,8 @@
 extern	exit
 extern	islower
 extern	isupper
+extern	tolower
+extern	toupper
 ; console.asm
 extern	print
 extern	puts
@@ -31,6 +33,8 @@ section .rodata
 	TEST_strclr		equ	1
 	TEST_islower		equ	1
 	TEST_isupper		equ	1
+	TEST_tolower		equ	1
+	TEST_toupper		equ	1
 	TEST_strcmp		equ	1
 
 	str1			db	"Hello, world!",EOS
@@ -114,6 +118,20 @@ section .rodata
 	isupper4		db	TAB,"isupper('D'): %d",NL,EOS
 	isupper5		db	TAB,"isupper('!'): %d",NL,EOS
 
+	; tolower()
+	msgTolower		db	NL,"TEST tolower()",NL,EOS
+	tolower1		db	TAB,"tolower(str1[0]): %c",NL,EOS
+	tolower2		db	TAB,"tolower(str1[1]): %c",NL,EOS
+	tolower3		db	TAB,"tolower('!'): %c",NL,EOS
+	tolower4		db	TAB,"tolower() -- entire str4: %s",NL,EOS
+
+	; toupper()
+	msgToupper		db	NL,"TEST tolower()",NL,EOS
+	toupper1		db	TAB,"toupper(str1[0]): %c",NL,EOS
+	toupper2		db	TAB,"toupper(str1[1]): %c",NL,EOS
+	toupper3		db	TAB,"toupper('!'): %c",NL,EOS
+	toupper4		db	TAB,"toupper() -- entire str4: %s",NL,EOS
+	
 	; strcmp()
 	msgStrcmp		db	NL,"TEST strcmp()",NL,EOS
 	strcmp1			db	TAB,"strcmp(str1, str1): %d",NL,EOS
@@ -512,6 +530,102 @@ _start:
 	call	printf
 %endif
 
+;---
+;--- tolower()
+;---
+%if TEST_tolower
+	lea	rdi, [rel msgTolower]
+	call	print
+
+	; TEST 1
+	mov	dil, byte [str1]
+	call	tolower
+	lea	rdi, [rel tolower1]
+	mov	rsi, rax
+	call	printf
+
+	; TEST 2
+	mov	dil, byte [str1 + 1]
+	call	tolower
+	lea	rdi, [rel tolower2]
+	mov	rsi, rax
+	call	printf
+
+	; TEST 3
+	mov	dil, '!'
+	call	tolower
+	lea	rdi, [rel tolower3]
+	mov	rsi, rax
+	call	printf
+
+	; TEST 4
+	lea	rdi, [rel strBuff1]
+	lea	rsi, [rel str4]
+	mov	rdx, 32
+	call	strcpy
+	mov	rdi, rax
+	call	strlen
+	mov	rcx, rax
+	lea	rsi, [rel strBuff1]
+	.tolowerLoop:
+		mov	dil, byte [rsi]
+		call	tolower
+		mov	byte [rsi], al
+		inc	rsi
+		loop	.tolowerLoop
+	lea	rdi, [rel tolower4]
+	lea	rsi, [rel strBuff1]
+	call	printf
+%endif
+
+;---
+;--- toupper()
+;---
+%if TEST_toupper
+	lea	rdi, [rel msgToupper]
+	call	print
+
+	; TEST 1
+	mov	dil, byte [str1]
+	call	toupper
+	lea	rdi, [rel toupper1]
+	mov	rsi, rax
+	call	printf
+
+	; TEST 2
+	mov	dil, byte [str1 + 1]
+	call	toupper
+	lea	rdi, [rel toupper2]
+	mov	rsi, rax
+	call	printf
+
+	; TEST 3
+	mov	dil, '!'
+	call	toupper
+	lea	rdi, [rel toupper3]
+	mov	rsi, rax
+	call	printf
+
+	; TEST 4
+	lea	rdi, [rel strBuff1]
+	lea	rsi, [rel str4]
+	mov	rdx, 32
+	call	strcpy
+	mov	rdi, rax
+	call	strlen
+	mov	rcx, rax
+	lea	rsi, [rel strBuff1]
+	.toupperLoop:
+		mov	dil, byte [rsi]
+		call	toupper
+		mov	byte [rsi], al
+		inc	rsi
+		loop	.toupperLoop
+	lea	rdi, [rel toupper4]
+	lea	rsi, [rel strBuff1]
+	call	printf
+%endif
+
 ;---
 ;--- strcmp()
 ;---