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-rw-r--r--sys/boot/i386/boot0/Makefile24
1 files changed, 7 insertions, 17 deletions
diff --git a/sys/boot/i386/boot0/Makefile b/sys/boot/i386/boot0/Makefile
index 429a62c..4d3f006 100644
--- a/sys/boot/i386/boot0/Makefile
+++ b/sys/boot/i386/boot0/Makefile
@@ -10,33 +10,23 @@ BINMODE= 444
M4?= m4
-# The default set of flags compiled into boot0. This enables update (writing
-# the modified boot0 back to disk after running so that the selection made is
-# saved), packet mode (detect and use the BIOS EDD extensions if we try to
-# boot past the 1024 cylinder liimt), and booting from all valid slices.
-BOOT_BOOT0_FLAGS?= 0x8f
+B0FLAGS=0xf
+B0TICKS=0xb6
-# The number of timer ticks to wait for a keypress before assuming the default
-# selection. Since there are 18.2 ticks per second, the default value of
-# 0xb6 (182d) corresponds to 10 seconds.
-BOOT_BOOT0_TICKS?= 0xb6
-
-# The base address that we the boot0 code to to run it. Don't change this
-# unless you are glutton for punishment.
-BOOT_BOOT0_ORG?= 0x600
+ORG= 0x600
boot0: boot0.o
.if ${OBJFORMAT} == aout
- ${LD} -N -s -T ${BOOT_BOOT0_ORG} -o boot0.out boot0.o
+ ${LD} -N -s -T ${ORG} -o boot0.out boot0.o
dd if=boot0.out of=${.TARGET} ibs=32 skip=1
.else
- ${LD} -N -e start -Ttext ${BOOT_BOOT0_ORG} -o boot0.out boot0.o
+ ${LD} -N -e start -Ttext ${ORG} -o boot0.out boot0.o
objcopy -S -O binary boot0.out ${.TARGET}
.endif
boot0.o: boot0.s
- ${AS} ${AFLAGS} --defsym FLAGS=${BOOT_BOOT0_FLAGS} \
- --defsym TICKS=${BOOT_BOOT0_TICKS} ${.IMPSRC} -o ${.TARGET}
+ ${AS} ${AFLAGS} --defsym FLAGS=${B0FLAGS} --defsym TICKS=${B0TICKS} \
+ ${.IMPSRC} -o ${.TARGET}
CLEANFILES+= boot0.out boot0.o
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