joppe/z80_monitor
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start of tape loading. hw works and have a generation script

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This commit is contained in:
Joppe Blondel
2026-10-03 16:29:41 +02:00
parent 47fffc2e71
commit 5897e55094
16 changed files with 784 additions and 106 deletions
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Makefile
+74 -22
View File
@@ -1,5 +1,11 @@
TARGET := monitor
BUILDDIR := build
LAYOUT_CONFIG := rom_layout.mk
LAYOUT_BUILD := $(BUILDDIR)/generated
LAYOUT_HEADER := $(LAYOUT_BUILD)/rom_layout.h
LAYOUT_INCLUDE := $(LAYOUT_BUILD)/rom_layout.inc
include $(LAYOUT_CONFIG)
METAL_C_SRCFILES := $(wildcard *.c)
METAL_ASM_SRCFILES := boot.asm
@@ -9,18 +15,16 @@ 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 0x0F80 --data-loc 0xF000 --opt-code-size
METAL_CPPFLAGS := -I src -I $(BUILDDIR)/metal/generated --disable-warning 283
METAL_BIN_SIZE := 32768
METAL_FLAGS := -mz80 --no-std-crt0 --code-loc $(RESIDENT_CODE_BASE) --code-size $(RESIDENT_CODE_SIZE) --data-loc $(RESIDENT_DATA_BASE) --opt-code-size
METAL_CPPFLAGS := -I src -I $(LAYOUT_BUILD) --disable-warning 283
METAL_BIN_SIZE := $(ROM_SIZE)
METAL_RAM_SIZE := 16384
METAL_IMAGE_SIZE := 65536
RESIDENT_BASE := 0xC000
RESIDENT_ROM_OFFSET := 128
TINYBASIC_BASE := 0x1000
TINYBASIC_ROM_OFFSET := 4096
TINYBASIC_SRC := apps/tinybasic.asm
TINYBASIC_SRC := apps/tinybasic/tinybasic.asm
TINYBASIC_BUILD := $(BUILDDIR)/tinybasic
TAPE_LOADER_SRC := apps/casette/tape_loader.asm
TAPE_LOADER_BUILD := $(BUILDDIR)/casette
.DEFAULT_GOAL := metal
@@ -38,7 +42,12 @@ metal: $(BUILDDIR)/metal/$(TARGET).ihx $(BUILDDIR)/metal/$(TARGET).bin $(BUILDDI
printf " ROM storage: %5u / %5u bytes (%5.1f%%)\n", stored, rom_capacity, 100 * stored / rom_capacity; \
printf " Resident BIOS+monitor: %5u bytes (%5u code/vector + %5u static data)\n", code + data, code, data; \
}' $(BUILDDIR)/metal/$(TARGET).map
@printf " Tiny BASIC: %5u ROM bytes at 1000\n" $$(wc -c < $(TINYBASIC_BUILD)/tinybasic.bin)
@printf " Tiny BASIC: %5u ROM bytes at %04X\n" \
$$(wc -c < $(TINYBASIC_BUILD)/tinybasic.bin) \
$$(( $(TINYBASIC_ROM_ADDRESS) ))
@printf " Tape loader: %5u ROM bytes at %04X\n" \
$$(wc -c < $(TAPE_LOADER_BUILD)/tape_loader.bin) \
$$(( $(TAPE_LOADER_ROM_ADDRESS) ))
$(BUILDDIR)/metal/$(TARGET).ihx: $(METAL_RELFILES)
@mkdir -p $(@D)
@@ -47,31 +56,48 @@ $(BUILDDIR)/metal/$(TARGET).ihx: $(METAL_RELFILES)
$(BUILDDIR)/metal/$(TARGET).flat.bin: $(BUILDDIR)/metal/$(TARGET).ihx
$(METAL_MAKEBIN) -s $(METAL_IMAGE_SIZE) $< $@
$(BUILDDIR)/metal/$(TARGET).prog.bin: $(BUILDDIR)/metal/$(TARGET).flat.bin $(TINYBASIC_BUILD)/tinybasic.bin
$(BUILDDIR)/metal/$(TARGET).prog.bin: $(BUILDDIR)/metal/$(TARGET).flat.bin $(TINYBASIC_BUILD)/tinybasic.bin $(TAPE_LOADER_BUILD)/tape_loader.bin
@set -e; \
payload_end=$$(awk '$$1 == "DEF" && $$2 == "resident_image_end" { print $$3 }' $(BUILDDIR)/metal/$(TARGET).noi); \
payload_size=$$((payload_end - $(RESIDENT_BASE))); \
test $$payload_size -gt 0; \
test $$payload_size -le $$(( $(TINYBASIC_ROM_OFFSET) - $(RESIDENT_ROM_OFFSET) )); \
dd if=$< of=$@ bs=1 count=$(TINYBASIC_ROM_OFFSET) status=none; \
dd if=$< of=$@ bs=1 skip=$$(( $(RESIDENT_BASE) )) seek=$(RESIDENT_ROM_OFFSET) count=$$payload_size conv=notrunc status=none; \
dd if=$(TINYBASIC_BUILD)/tinybasic.bin of=$@ bs=1 seek=$(TINYBASIC_ROM_OFFSET) conv=notrunc status=none
payload_size=$$((payload_end - $(RESIDENT_RAM_BASE))); \
payload_rom_end=$$(( $(RESIDENT_ROM_OFFSET) + payload_size )); \
tiny_size=$$(wc -c < $(TINYBASIC_BUILD)/tinybasic.bin); \
tape_size=$$(wc -c < $(TAPE_LOADER_BUILD)/tape_loader.bin); \
if test $$payload_size -le 0; then \
echo "error: resident image is empty or has an invalid end symbol" >&2; exit 1; \
fi; \
if test $$payload_rom_end -gt $$(( $(TINYBASIC_ROM_ADDRESS) )); then \
printf "error: resident ROM image ends at %04X, beyond Tiny BASIC origin %04X\n" \
$$payload_rom_end $$(( $(TINYBASIC_ROM_ADDRESS) )) >&2; exit 1; \
fi; \
if test $$(( $(TINYBASIC_ROM_ADDRESS) + tiny_size )) -gt $$(( $(TAPE_LOADER_ROM_ADDRESS) )); then \
printf "error: Tiny BASIC ends at %04X, beyond tape-loader origin %04X\n" \
$$(( $(TINYBASIC_ROM_ADDRESS) + tiny_size )) $$(( $(TAPE_LOADER_ROM_ADDRESS) )) >&2; exit 1; \
fi; \
if test $$(( $(TAPE_LOADER_ROM_ADDRESS) + tape_size )) -gt $$(( $(ROM_SIZE) )); then \
printf "error: tape loader ends at %04X, beyond ROM size %04X\n" \
$$(( $(TAPE_LOADER_ROM_ADDRESS) + tape_size )) $$(( $(ROM_SIZE) )) >&2; exit 1; \
fi; \
dd if=$< of=$@ bs=1 count=$$(( $(TAPE_LOADER_ROM_ADDRESS) )) status=none; \
dd if=$< of=$@ bs=1 skip=$$(( $(RESIDENT_RAM_BASE) )) seek=$$(( $(RESIDENT_ROM_OFFSET) )) count=$$payload_size conv=notrunc status=none; \
dd if=$(TINYBASIC_BUILD)/tinybasic.bin of=$@ bs=1 seek=$$(( $(TINYBASIC_ROM_ADDRESS) )) conv=notrunc status=none; \
dd if=$(TAPE_LOADER_BUILD)/tape_loader.bin of=$@ bs=1 seek=$$(( $(TAPE_LOADER_ROM_ADDRESS) )) conv=notrunc status=none
$(BUILDDIR)/metal/$(TARGET).bin: $(BUILDDIR)/metal/$(TARGET).flat.bin $(BUILDDIR)/metal/$(TARGET).prog.bin
dd if=$< of=$@ bs=$(METAL_BIN_SIZE) count=1 status=none
dd if=$(BUILDDIR)/metal/$(TARGET).prog.bin of=$@ conv=notrunc status=none
$(BUILDDIR)/metal/%.rel: %.c
$(BUILDDIR)/metal/%.rel: %.c $(LAYOUT_HEADER)
@mkdir -p $(@D)
$(METAL_CC) $(METAL_FLAGS) $(METAL_CPPFLAGS) -o $@ -c $<
$(BUILDDIR)/metal/%.rel: %.asm
$(BUILDDIR)/metal/%.rel: %.asm $(LAYOUT_INCLUDE)
@mkdir -p $(@D)
$(METAL_AS) -Iinclude -I$(BUILDDIR)/metal/generated -plosgff -o $@ $<
$(METAL_AS) -Iinclude -I$(LAYOUT_BUILD) -plosgff -o $@ $<
$(TINYBASIC_BUILD)/tinybasic.rel: $(TINYBASIC_SRC)
$(TINYBASIC_BUILD)/tinybasic.rel: $(TINYBASIC_SRC) $(LAYOUT_INCLUDE)
@mkdir -p $(@D)
$(METAL_AS) -Iinclude -plosgff -o $@ $<
$(METAL_AS) -Iinclude -I$(LAYOUT_BUILD) -plosgff -o $@ $<
$(TINYBASIC_BUILD)/tinybasic.ihx: $(TINYBASIC_BUILD)/tinybasic.rel
sdldz80 -n -i -m -j $(basename $@) $<
@@ -82,7 +108,33 @@ $(TINYBASIC_BUILD)/tinybasic.flat.bin: $(TINYBASIC_BUILD)/tinybasic.ihx
$(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
dd if=$< of=$@ bs=1 skip=$$(( $(TINYBASIC_ROM_ADDRESS) )) count=$$tiny_size status=none
$(TAPE_LOADER_BUILD)/tape_loader.rel: $(TAPE_LOADER_SRC) $(LAYOUT_INCLUDE)
@mkdir -p $(@D)
$(METAL_AS) -Iinclude -I$(LAYOUT_BUILD) -plosgff -o $@ $<
$(TAPE_LOADER_BUILD)/tape_loader.ihx: $(TAPE_LOADER_BUILD)/tape_loader.rel
sdldz80 -n -i -m -j $(basename $@) $<
$(TAPE_LOADER_BUILD)/tape_loader.flat.bin: $(TAPE_LOADER_BUILD)/tape_loader.ihx
$(METAL_MAKEBIN) -s $(METAL_IMAGE_SIZE) $< $@
$(TAPE_LOADER_BUILD)/tape_loader.bin: $(TAPE_LOADER_BUILD)/tape_loader.flat.bin
@loader_size=$$(awk '$$1 == "TAPELOAD0" { print $$5 + 0 }' $(TAPE_LOADER_BUILD)/tape_loader.map); \
test $$loader_size -gt 0; \
dd if=$< of=$@ bs=1 skip=$$(( $(TAPE_LOADER_ROM_ADDRESS) )) count=$$loader_size status=none
$(LAYOUT_HEADER): $(LAYOUT_CONFIG)
@mkdir -p $(@D)
@awk 'BEGIN { print "#ifndef ROM_LAYOUT_H"; print "#define ROM_LAYOUT_H"; print "" } \
/^[A-Z][A-Z0-9_]*[[:space:]]*:=[[:space:]]*/ { print "#define " $$1 " " $$3 } \
END { print ""; print "#endif" }' $< > $@
$(LAYOUT_INCLUDE): $(LAYOUT_CONFIG)
@mkdir -p $(@D)
@awk 'BEGIN { print "; Generated from rom_layout.mk; do not edit." } \
/^[A-Z][A-Z0-9_]*[[:space:]]*:=[[:space:]]*/ { print $$1 " = " $$3 }' $< > $@
clean:
rm -rf $(BUILDDIR)