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Added tinybasic

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This commit is contained in:
Joppe Blondel
2026-09-28 15:42:07 +02:00
parent 53b44adcef
commit 9b1fcac8ee
5 changed files with 2026 additions and 25 deletions
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Makefile
+33 -6
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@@ -9,7 +9,7 @@ METAL_RELFILES := $(METAL_ASM_SRCFILES:%.asm=$(BUILDDIR)/metal/%.rel) \
METAL_CC := sdcc
METAL_AS := sdasz80
METAL_MAKEBIN := makebin
METAL_FLAGS := -mz80 --no-std-crt0 --code-loc 0xC080 --code-size 0x2F80 --data-loc 0xF000
METAL_FLAGS := -mz80 --no-std-crt0 --code-loc 0xC080 --code-size 0x0F80 --data-loc 0xF000
METAL_CPPFLAGS := -I src -I $(BUILDDIR)/metal/generated --disable-warning 283
METAL_BIN_SIZE := 32768
METAL_RAM_SIZE := 16384
@@ -17,6 +17,11 @@ METAL_IMAGE_SIZE := 65536
MONITOR_BASE := 0xC000
MONITOR_ROM_OFFSET := 128
TINYBASIC_BASE := 0xD000
TINYBASIC_ROM_OFFSET := 4096
TINYBASIC_SRC := tinybasic_sdas.asm
TINYBASIC_BUILD := $(BUILDDIR)/tinybasic
.DEFAULT_GOAL := metal
.PHONY: all metal clean
@@ -31,9 +36,9 @@ metal: $(BUILDDIR)/metal/$(TARGET).ihx $(BUILDDIR)/metal/$(TARGET).bin $(BUILDDI
END { \
printf "\nMemory usage:\n"; \
printf " ROM storage: %5u / %5u bytes (%5.1f%%)\n", stored, rom_capacity, 100 * stored / rom_capacity; \
printf " Runtime RAM: %5u / %5u bytes (%5.1f%%), %5u bytes for growth/stack\n", code + data, ram_capacity, 100 * (code + data) / ram_capacity, ram_capacity - code - data; \
printf " code/vector: %5u bytes; static data: %5u bytes\n", code, data; \
printf " Monitor linked: %5u bytes (%5u code/vector + %5u static data)\n", code + data, code, data; \
}' $(BUILDDIR)/metal/$(TARGET).map
@printf " Tiny BASIC: %5u bytes at D000\n" $$(wc -c < $(TINYBASIC_BUILD)/tinybasic.bin)
$(BUILDDIR)/metal/$(TARGET).ihx: $(METAL_RELFILES)
@mkdir -p $(@D)
@@ -42,12 +47,13 @@ $(BUILDDIR)/metal/$(TARGET).ihx: $(METAL_RELFILES)
$(BUILDDIR)/metal/$(TARGET).flat.bin: $(BUILDDIR)/metal/$(TARGET).ihx
$(METAL_MAKEBIN) -s $(METAL_IMAGE_SIZE) $< $@
$(BUILDDIR)/metal/$(TARGET).prog.bin: $(BUILDDIR)/metal/$(TARGET).flat.bin
$(BUILDDIR)/metal/$(TARGET).prog.bin: $(BUILDDIR)/metal/$(TARGET).flat.bin $(TINYBASIC_BUILD)/tinybasic.bin
@payload_end=$$(awk '$$1 == "DEF" && $$2 == "monitor_image_end" { print $$3 }' $(BUILDDIR)/metal/$(TARGET).noi); \
payload_size=$$((payload_end - $(MONITOR_BASE))); \
test $$payload_size -gt 0; \
dd if=$< of=$@ bs=1 count=$(MONITOR_ROM_OFFSET) status=none; \
dd if=$< of=$@ bs=1 skip=$$(( $(MONITOR_BASE) )) seek=$(MONITOR_ROM_OFFSET) count=$$payload_size conv=notrunc status=none
dd if=$< of=$@ bs=1 count=$(TINYBASIC_ROM_OFFSET) status=none; \
dd if=$< of=$@ bs=1 skip=$$(( $(MONITOR_BASE) )) seek=$(MONITOR_ROM_OFFSET) count=$$payload_size conv=notrunc status=none; \
dd if=$(TINYBASIC_BUILD)/tinybasic.bin of=$@ bs=1 seek=$(TINYBASIC_ROM_OFFSET) conv=notrunc status=none
$(BUILDDIR)/metal/$(TARGET).bin: $(BUILDDIR)/metal/$(TARGET).flat.bin $(BUILDDIR)/metal/$(TARGET).prog.bin
dd if=$< of=$@ bs=$(METAL_BIN_SIZE) count=1 status=none
@@ -58,9 +64,30 @@ $(BUILDDIR)/metal/%.rel: %.c
$(METAL_CC) $(METAL_FLAGS) $(METAL_CPPFLAGS) -o $@ -c $<
$(BUILDDIR)/metal/%.rel: %.asm
@mkdir -p $(@D)
$(METAL_AS) -I$(BUILDDIR)/metal/generated -plosgff -o $@ $<
$(BUILDDIR)/metal/boot.rel: $(BUILDDIR)/metal/generated/tinybasic.inc
$(TINYBASIC_BUILD)/tinybasic.rel: $(TINYBASIC_SRC)
@mkdir -p $(@D)
$(METAL_AS) -plosgff -o $@ $<
$(TINYBASIC_BUILD)/tinybasic.ihx: $(TINYBASIC_BUILD)/tinybasic.rel
sdldz80 -n -i -m -j $(basename $@) $<
$(TINYBASIC_BUILD)/tinybasic.flat.bin: $(TINYBASIC_BUILD)/tinybasic.ihx
$(METAL_MAKEBIN) -s $(METAL_IMAGE_SIZE) $< $@
$(TINYBASIC_BUILD)/tinybasic.bin: $(TINYBASIC_BUILD)/tinybasic.flat.bin
@tiny_size=$$(awk '$$1 == "TINYBASIC0" { print $$5 + 0 }' $(TINYBASIC_BUILD)/tinybasic.map); \
test $$tiny_size -gt 0; \
dd if=$< of=$@ bs=1 skip=$$(( $(TINYBASIC_BASE) )) count=$$tiny_size status=none
$(BUILDDIR)/metal/generated/tinybasic.inc: $(TINYBASIC_BUILD)/tinybasic.ihx
@mkdir -p $(@D)
@awk '$$1 == "TINYBASIC0" { printf "TINYBASIC_SIZE = 0x%04X\n", $$5 }' $(TINYBASIC_BUILD)/tinybasic.map > $@
clean:
rm -rf $(BUILDDIR)