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fixed useages of the hardware specific 0xE40000 address #625

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Merged
merged 2 commits into from
Sep 4, 2025
Merged

fixed useages of the hardware specific 0xE40000 address #625

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15c9935
removed the hardware specific 0xE40000 address from bzero, and disabl…
ZERICO2005 Aug 30, 2025
14f577c
added the __TICE__ ASM define to enable/disable hardware specific code
ZERICO2005 Sep 3, 2025
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4 changes: 4 additions & 0 deletions src/libc/asprintf.src
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Original file line number Diff line number Diff line change
Expand Up @@ -15,10 +15,14 @@ _vasprintf := __vasprintf_c

else

if defined __TICE__

_asprintf := _boot_asprintf
_vasprintf := _boot_vasprintf

extern _boot_asprintf
extern _boot_vasprintf

end if

end if
31 changes: 31 additions & 0 deletions src/libc/bzero.src
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Expand Up @@ -4,6 +4,10 @@

public _bzero

if defined __TICE__

; uses the hardware specific $E40000 memory location

; void bzero(void* buf, size_t n)
_bzero:
ld hl, 6
Expand All @@ -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
4 changes: 4 additions & 0 deletions src/libc/snprintf.src
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Expand Up @@ -15,10 +15,14 @@ _vsnprintf := __vsnprintf_c

else

if defined __TICE__

_snprintf := _boot_snprintf
_vsnprintf := _boot_vsnprintf

extern _boot_snprintf
extern _boot_vsnprintf

end if

end if
1 change: 1 addition & 0 deletions src/makefile.mk
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Expand Up @@ -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)) \
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