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collapseos/doc/emulate.md

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2019-04-17 01:35:15 +10:00
# Running Collapse OS on an emulated RC2014
To give Collapse OS a whirl or to use emulation as a development tool, I
recommend using Alan Cox's [RC2014 emulator][rc2014-emul]. It runs Collapse OS
fine. One caveat, however, is that it requires a ROM image bigger than 8K, so
you have to pad the binary.
A working Makefile for a project with a glue code being called `main.asm` could
look like:
TARGET = os.bin
PARTS = ~/collapseos/parts
ROM = os.rom
.PHONY: all
all: $(ROM)
$(TARGET): main.asm
scas -o $@ -L map -I $(PARTS) $<
$(ROM): $(TARGET)
cp $< $@
dd if=/dev/null of=$@ bs=1 count=1 seek=8192
.PHONY: run
run: $(ROM)
~/RC2014/rc2014 -r $(ROM)
`CTRL+\` stops the emulation.
[rc2014-emul]: https://github.com/EtchedPixels/RC2014