From 15c993517242a9f6b37a4942991d22ed0942fd23 Mon Sep 17 00:00:00 2001
From: unknown <71151164+ZERICO2005@users.noreply.github.com>
Date: Sat, 30 Aug 2025 16:31:18 -0600
Subject: [PATCH 1/2] removed the hardware specific 0xE40000 address from
 bzero, and disabled linking (v)snprintf and (v)asprintf to boot_(v)snprintf
 and boot_(v)asprintf

---
 src/libc/asprintf.src |  4 ++++
 src/libc/bzero.src    | 31 +++++++++++++++++++++++++++++++
 src/libc/snprintf.src |  4 ++++
 3 files changed, 39 insertions(+)

diff --git a/src/libc/asprintf.src b/src/libc/asprintf.src
index 1e6072127..dc171fea8 100644
--- a/src/libc/asprintf.src
+++ b/src/libc/asprintf.src
@@ -15,6 +15,8 @@ _vasprintf := __vasprintf_c
 
 else
 
+if 0
+
 _asprintf := _boot_asprintf
 _vasprintf := _boot_vasprintf
 
@@ -22,3 +24,5 @@ _vasprintf := _boot_vasprintf
 	extern	_boot_vasprintf
 
 end if
+
+end if
diff --git a/src/libc/bzero.src b/src/libc/bzero.src
index ed5acd1c7..6114b7039 100644
--- a/src/libc/bzero.src
+++ b/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
diff --git a/src/libc/snprintf.src b/src/libc/snprintf.src
index 9a287ade7..1a3ba55f1 100644
--- a/src/libc/snprintf.src
+++ b/src/libc/snprintf.src
@@ -15,6 +15,8 @@ _vsnprintf := __vsnprintf_c
 
 else
 
+if 0
+
 _snprintf := _boot_snprintf
 _vsnprintf := _boot_vsnprintf
 
@@ -22,3 +24,5 @@ _vsnprintf := _boot_vsnprintf
 	extern	_boot_vsnprintf
 
 end if
+
+end if

From 14f577ce263bb00528a51fafb107dd8455e687f3 Mon Sep 17 00:00:00 2001
From: unknown <71151164+ZERICO2005@users.noreply.github.com>
Date: Wed, 3 Sep 2025 12:59:51 -0600
Subject: [PATCH 2/2] added the __TICE__ ASM define to enable/disable hardware
 specific code

---
 src/libc/asprintf.src | 2 +-
 src/libc/bzero.src    | 2 +-
 src/libc/snprintf.src | 2 +-
 src/makefile.mk       | 1 +
 4 files changed, 4 insertions(+), 3 deletions(-)

diff --git a/src/libc/asprintf.src b/src/libc/asprintf.src
index dc171fea8..1bd8e3b54 100644
--- a/src/libc/asprintf.src
+++ b/src/libc/asprintf.src
@@ -15,7 +15,7 @@ _vasprintf := __vasprintf_c
 
 else
 
-if 0
+if defined __TICE__
 
 _asprintf := _boot_asprintf
 _vasprintf := _boot_vasprintf
diff --git a/src/libc/bzero.src b/src/libc/bzero.src
index 6114b7039..e2c5a1ebb 100644
--- a/src/libc/bzero.src
+++ b/src/libc/bzero.src
@@ -4,7 +4,7 @@
 
 	public	_bzero
 
-if 0
+if defined __TICE__
 
 ; uses the hardware specific $E40000 memory location
 
diff --git a/src/libc/snprintf.src b/src/libc/snprintf.src
index 1a3ba55f1..219768d4b 100644
--- a/src/libc/snprintf.src
+++ b/src/libc/snprintf.src
@@ -15,7 +15,7 @@ _vsnprintf := __vsnprintf_c
 
 else
 
-if 0
+if defined __TICE__
 
 _snprintf := _boot_snprintf
 _vsnprintf := _boot_vsnprintf
diff --git a/src/makefile.mk b/src/makefile.mk
index a0fd3c325..9e839f86c 100644
--- a/src/makefile.mk
+++ b/src/makefile.mk
@@ -267,6 +267,7 @@ FASMGFLAGS = \
 	-i $(call QUOTE_ARG,PREFER_OS_CRT := $(LDPREFER_OS_CRT)) \
 	-i $(call QUOTE_ARG,PREFER_OS_LIBC := $(LDPREFER_OS_LIBC)) \
 	-i $(call QUOTE_ARG,ALLOCATOR_$(ALLOCATOR) := 1) \
+	-i $(call QUOTE_ARG,__TICE__ := 1) \
 	-i $(call QUOTE_ARG,include $(call FASMG_FILES,$(LINKER_SCRIPT))) \
 	-i $(call QUOTE_ARG,range .bss $$$(BSSHEAP_LOW) : $$$(BSSHEAP_HIGH)) \
 	-i $(call QUOTE_ARG,provide __stack = $$$(STACK_HIGH)) \