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| author | John Baldwin <jhb@FreeBSD.org> | 2023-04-18 18:02:50 +0000 |
|---|---|---|
| committer | John Baldwin <jhb@FreeBSD.org> | 2023-04-18 18:02:50 +0000 |
| commit | bd5dc94b998fe9ea0cd2ce9fcaf8481465b95b27 (patch) | |
| tree | 0d40ea8499e5fa8b582cd11e295d2227bb04e9f6 | |
| parent | 4e8b87afe0085b893b85127f4b05610518d30a67 (diff) | |
| download | src-bd5dc94b998fe9ea0cd2ce9fcaf8481465b95b27.tar.gz src-bd5dc94b998fe9ea0cd2ce9fcaf8481465b95b27.zip | |
boot0: Expand the description of BOOT_BOOT0_ORG.
This really shouldn't even be an option given it is hardcoded as a
constant named ORIGIN in the assembly. mbr.S also uses 0x600 and
hardcodes it in both the assembly and the Makefile.
| -rw-r--r-- | stand/i386/boot0/Makefile | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/stand/i386/boot0/Makefile b/stand/i386/boot0/Makefile index 1453f17751b9..cd645011b8e7 100644 --- a/stand/i386/boot0/Makefile +++ b/stand/i386/boot0/Makefile @@ -36,8 +36,11 @@ BOOT_BOOT0_FLAGS?= 0x8f # 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. +# The BIOS loads boot0 to the hardcoded address 0x7c00. boot0 copies +# itself to this alternate base address before continuing execution so +# that next level boot blocks can be loaded at the 0x7c00 address they +# expect. Don't change this unless you are glutton for punishment +# (and fix ORIGIN in the source to match). BOOT_BOOT0_ORG?= 0x600 ORG=${BOOT_BOOT0_ORG} |