004
22.02.2014, 12:30 Uhr
Hobi
|
Ich habe die Makefiles aufgeräumt, Startupcode angepasst und alles mal zusammengebaut. Am besten man benutzt Cygwin als Entwicklungsumgebung.
Z1013 Bibliotheken und Beispiele
sdasz80 mit Bugfix
Makefile:
| Quellcode: | OUT=printf
OBJECTS=printf.rel
include ../lib/z1013_app.make |
printf.c:
| Quellcode: | #include <stdio.h>
void main() {
printf("Hello World!\n");
} |
app.make:
| Quellcode: | obj/$(OUT).z80 : ../lib/z1013/crt0.rel ../lib/z1013/z1013.lib $(OBJS)
$(LINK) -mjwx -b _CODE=0x0100 -i "obj/$(OUT).ihx" -k ../lib/z1013 -l z80 $^
objcopy -Iihex -Obinary "obj/$(OUT).ihx" "$@"
echo -n $(OUT) >obj/filename.txt
dd bs=1 if=obj/filename.txt of="$@" seek=16 conv=notrunc
hexdump -C "$@"
obj/%.rel : src/%.c obj
sdcc -mz80 -c -o "$@" -Iinclude -I../include $(CFLAGS) "$<"
obj/%.rel : src/%.s obj
$(AS) -plosgff "$@" "$<"
|
startup code:
| Quellcode: | .module crt0
.globl _main
.area _HEADER (ABS)
;preparing "headersave" file header attached to the final rom image as loadable .z80 format
.org 0xe0
.dw s__CODE
.dw start_of_stackframe
.dw init
.ascii 'sdccz80'
.db 0xd3,0xd3,0xd3
.ascii ' '
;; Ordering of segments for the linker.
.area _HOME
.area _CODE
.area _INITIALIZER
.area _GSINIT
.area _GSFINAL
.area _GSEXIT
.area _GSEXITFINAL
.area _DATA
.area _INITIALIZED
.area _BSEG
.area _BSS
.area _STACK
.area _HEAP
.area _CODE
_monitor_entry .equ 0xf05f
init:
;; Stack at the top of memory.
ld sp,#end_of_stackframe
; mark stack frame
ld hl,#0xbbbb
ld (#start_of_stackframe),hl
push hl
;; Initialise global variables
call gsinit
call _main
call gsexit
ld sp,#0x00b0
jp _monitor_entry
rst 0x38
.area _GSINIT
gsinit::
ld bc, #l__INITIALIZER
ld a, b
or a, c
jr Z, gsinit_next
ld de, #s__INITIALIZED
ld hl, #s__INITIALIZER
ldir
gsinit_next:
.area _GSFINAL
ret
.area _GSEXIT
gsexit::
.area _GSEXITFINAL
ret
.area _STACK
;For now just allocate 1k for stack.
; stack frame marker - top
start_of_stackframe:
.ds 2
.ds 1024
; stack frame marker - bottom
.ds 2
; z1013 has predecrement stack
end_of_stackframe:
.include "rst8.s" |
z1013.lib
| Quellcode: | #define PRST7(X) \
__asm__("rst 0x20"); \
__asm__(".db 2 ;PRST7"); \
__asm__(".ascis "#X);
void OUTCH(unsigned char c)
{
__asm__("ld hl, #2+0");
__asm__("add hl, sp");
__asm__("ld a, (hl)");
__asm__("rst 0x20");
__asm__(".db 0");
}
unsigned char INCH()
{
__asm__("rst 0x20");
__asm__(".db 1");
__asm__("ld l,a");
}
|
--
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Corontäne
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Dieser Beitrag wurde am 22.02.2014 um 12:32 Uhr von Hobi editiert. |
