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Add .usb target
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commit
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@ -98,6 +98,10 @@ MEDIA += com
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MEDIA += exe
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# Special target for building Master Boot Record binary
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$(BIN)/mbr.bin : $(BIN)/mbr.o
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$(OBJCOPY) -O binary $< $@
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# Some suffixes (e.g. %.zfd0) are generated directly from other
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# finished files (e.g. %.zdsk), rather than having their own prefix.
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@ -117,6 +121,13 @@ NON_AUTO_MEDIA += liso
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%liso: %lilo util/genliso
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bash util/genliso $@ $<
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# rule to make a USB disk image
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$(BIN)/usbdisk.bin : $(BIN)/usbdisk.o
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$(OBJCOPY) -O binary $< $@
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%usb: $(BIN)/usbdisk.bin %hd
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cat $^ > $@
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# Add NON_AUTO_MEDIA to the media list, so that they show up in the
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# output of "make"
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#
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23
src/arch/i386/prefix/usbdisk.S
Normal file
23
src/arch/i386/prefix/usbdisk.S
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@ -0,0 +1,23 @@
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.text
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.arch i386
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.section ".prefix", "awx", @progbits
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.code16
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.org 0
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#include "mbr.S"
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/* Partition table: ZIP-compatible partition 4, 64 heads, 32 sectors/track */
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.org 446
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.space 16
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.space 16
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.space 16
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.byte 0x80, 0x01, 0x01, 0x00
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.byte 0x01, 0x3f, 0x20, 0x01
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.long 0x00000020
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.long 0x00000fe0
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.org 510
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.byte 0x55, 0xaa
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/* Skip to start of partition */
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.org 32 * 512
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