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Makefile: Lower limit of --xram-size to protect ChaCha20 space

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ChaCha20 uses 256 bytes starting from 0xbf00 for its calculations.
Make sure the linker checks that this space is not overwritten.
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logicog committed 2026-10-17 06:30:16 +02:00
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commit f8e437f3a4
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Makefile
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@@ -186,7 +186,7 @@ $(BUILDDIR)/%.rel: %.asm $(CCFLAGS_STAMP) | create_build_dir
# mv -f $(addprefix $(basename $^), .lst .rel .sym) . # mv -f $(addprefix $(basename $^), .lst .rel .sym) .
$(BUILDDIR)/rtlplayground.ihx: $(OBJS) $(BUILDDIR)/crtbank.rel $(BUILDDIR)/crc16.rel $(BUILDDIR)/crypto/chacha_8051.rel $(BUILDDIR)/rtlplayground.ihx: $(OBJS) $(BUILDDIR)/crtbank.rel $(BUILDDIR)/crc16.rel $(BUILDDIR)/crypto/chacha_8051.rel
$(CC) $(CC_FLAGS) --xram-size 49151 -Wl-bHOME=0x00000 -Wl-bBANK1=0x14000 -Wl-bBANK2=0x24000 -Wl-bBANK3=0x34000 -Wl-r -o $@ $^ $(CC) $(CC_FLAGS) --xram-size 48896 -Wl-bHOME=0x00000 -Wl-bBANK1=0x14000 -Wl-bBANK2=0x24000 -Wl-bBANK3=0x34000 -Wl-r -o $@ $^
$(BUILDDIR)/rtlplayground.img: $(BUILDDIR)/rtlplayground.ihx $(BUILDDIR)/rtlplayground.img: $(BUILDDIR)/rtlplayground.ihx
objcopy --input-target=ihex -O binary $< $@ objcopy --input-target=ihex -O binary $< $@