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| author | Nao Pross <naopross@thearcway.org> | 2018-10-30 11:41:24 +0100 |
|---|---|---|
| committer | Nao Pross <naopross@thearcway.org> | 2018-10-30 11:41:24 +0100 |
| commit | 43be150dc6e84f6f6eeb071cd3cdb7fc21125d60 (patch) | |
| tree | 541fd3d690c1bdfd7b68d684029a400b80f4aa06 /sw-old/z80/tests/ram | |
| parent | Add datasheets for ATmega328 and 74LS259 (diff) | |
| download | z80uPC-43be150dc6e84f6f6eeb071cd3cdb7fc21125d60.tar.gz z80uPC-43be150dc6e84f6f6eeb071cd3cdb7fc21125d60.zip | |
Move sw to sw-old and hw to hw-altium, add kicad files
Diffstat (limited to 'sw-old/z80/tests/ram')
| -rw-r--r-- | sw-old/z80/tests/ram/crt0.s | 40 | ||||
| -rw-r--r-- | sw-old/z80/tests/ram/main.c | 13 | ||||
| -rw-r--r-- | sw-old/z80/tests/ram/makefile | 54 |
3 files changed, 107 insertions, 0 deletions
diff --git a/sw-old/z80/tests/ram/crt0.s b/sw-old/z80/tests/ram/crt0.s new file mode 100644 index 0000000..b0caa8c --- /dev/null +++ b/sw-old/z80/tests/ram/crt0.s @@ -0,0 +1,40 @@ + .module crt0 + .area _HEADER (ABS) + +;; Reset vectors + .org 0 + jp init + + .org 0x38 ; the instruction 0xff (not written) resets to this location + jp init + +;; main code + .org 0x100 + .globl _main + +init: + ;; Set stack pointer directly above top of memory. + ld sp,#0xffff + + ;; Start of the program + call _main + jp _exit + +_exit: + halt + jp _exit + +;; Ordering of segments for the linker. + .area _HOME + .area _CODE + .area _INITIALIZER + .area _GSINIT + .area _GSFINAL + + .area _DATA + .area _INITIALIZED + .area _BSEG + .area _BSS + .area _HEAP + + .area _CODE
\ No newline at end of file diff --git a/sw-old/z80/tests/ram/main.c b/sw-old/z80/tests/ram/main.c new file mode 100644 index 0000000..581072b --- /dev/null +++ b/sw-old/z80/tests/ram/main.c @@ -0,0 +1,13 @@ + +void main(void) +{ + unsigned char j; + unsigned char *mem; + + j = 0; + mem = (unsigned char *) 0x8200; // somwhere in ram + + while (1) { + *mem = j++; + } +} diff --git a/sw-old/z80/tests/ram/makefile b/sw-old/z80/tests/ram/makefile new file mode 100644 index 0000000..f8eb9fc --- /dev/null +++ b/sw-old/z80/tests/ram/makefile @@ -0,0 +1,54 @@ +#### +# source code settings +# +OSNAME := ram_test + +CSOURCES := $(wildcard *.c) + +OBJECTS := $(patsubst %.c,build/%.rel,$(CSOURCES)) +HEXFILE := build/$(OSNAME).hex +BINARY := build/$(OSNAME).bin + +### +# compiler settings +# +CC := sdcc + +CFLAGS := -mz80 \ + -I . \ + -DDEBUG + +LDFLAGS := -mz80 \ + --no-std-crt0 build/crt0.rel \ + -pedantic + + # --code-loc 0x0120 \ + # --data-loc 0x2000 + +.PHONY: flash dirs dis clean +all: $(BINARY) + +flash: $(BINARY) + minipro -p M28C64 -w $< + +# build binary +$(BINARY): $(OBJECTS) dirs + $(CC) $(LDFLAGS) $(OBJECTS) -o $(HEXFILE) + makebin -s 8192 -yo 1 $(HEXFILE) $(BINARY) + +$(OBJECTS): build/%.rel : %.c $(CSOURCES) dirs build/crt0.rel + @printf "\n" + $(CC) $(CFLAGS) -c $< -o $@ + +build/crt0.rel: crt0.s + sdasz80 -o $< + @mv crt0.rel build/ + +dirs: + mkdir -p build + +dis: $(BINARY) + r2 -a z80 $< -c 'pd 0x10; s 0x100; pd 10; s 0x200; pd 10' + +clean: + - rm -rd build |