Add support for '%%' in printf()

console.asm

@@ -46,7 +46,7 @@ puts:
 	leave
 	ret
 ;----- printf(const char* string, ...) -----;
-; Currently only supports specifiers: %d, %c, %s
+; Currently only supports specifiers: %d, %c, %s, %%
 ; Return value: Amount of printed characters
 printf:
 	push	rbp
@@ -71,6 +71,8 @@ printf:
 			push	rdi
 			cmp	byte [rdi+1], 'd'
 			je	.rep_d
+			cmp	byte [rdi+1], '%'
+			je	.rep_pct
 			cmp	byte [rdi+1], 'c'
 			je	.rep_c
 			cmp	byte [rdi+1], 's'
@@ -124,6 +126,12 @@ printf:
 				mov	rsi, rax
 				jmp	.insertLoop
 
+			;--- %% ---;
+			.rep_pct:
+				mov	rdi, '%'
+				dec	r10 ;r10 is increased at the end, but not needed because '%%' requires no arg
+				jmp	.charToStr
+
 			;--- %c ---;
 			.rep_c:
 			cmp	r10, 0

tests.asm

@@ -70,7 +70,7 @@ section	.rodata
 	msgPuts		db	NL,NL,"# puts()",NL,EOS
 	msgPuts1	db	"puts() test",EOS
 	; printf()
-	testStr		db	"Testing: %s, %s, %s, %s, %s, %s, %s, %s, %d, %s",NL,EOS
+	testStr		db	"Testing: %s, %%, %s, %s, %s, %s, %s, %s, %s, %d, %s",NL,EOS
 	tS1		db	"one",EOS
 	tS2		db	"two",EOS
 	tS3		db	"three",EOS