removed the hardware specific 0xE40000 address from bzero, and disabled linking (v)snprintf and (v)asprintf to boot_(v)snprintf and boot_(v)asprintf

Author: ZERICO2005

src/libc/asprintf.src

@@ -15,10 +15,14 @@ _vasprintf := __vasprintf_c
 
 else
 
+if 0
+
 _asprintf := _boot_asprintf
 _vasprintf := _boot_vasprintf
 
 	extern	_boot_asprintf
 	extern	_boot_vasprintf
 
 end if
+
+end if

src/libc/bzero.src

@@ -4,6 +4,10 @@
 
 	public	_bzero
 
+if 0
+
+; uses the hardware specific $E40000 memory location
+
 ; void bzero(void* buf, size_t n)
 _bzero:
 	ld	hl, 6
@@ -18,3 +22,30 @@ _bzero:
 	ld	hl, $E40000	; large region of all zeros on the Ti84CE
 	ldir
 	ret
+
+else
+
+; makes no hardware assumptions
+
+; void bzero(void* buf, size_t n)
+_bzero:
+	ld	hl, 6
+	add	hl, sp
+	ld	bc, (hl)
+	dec	hl
+	dec	hl
+	dec	hl
+	ld	hl, (hl)
+	cpi
+	add	hl, bc
+	ret	c
+	dec	hl
+	ld	(hl), 0
+	ret	po
+	push	hl
+	pop	de
+	dec	de
+	lddr
+	ret
+
+end if

src/libc/snprintf.src

@@ -15,10 +15,14 @@ _vsnprintf := __vsnprintf_c
 
 else
 
+if 0
+
 _snprintf := _boot_snprintf
 _vsnprintf := _boot_vsnprintf
 
 	extern	_boot_snprintf
 	extern	_boot_vsnprintf
 
 end if
+
+end if