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| author | Kartik Agaram <vc@akkartik.com> | 2020-12-27 22:38:07 -0800 |
|---|---|---|
| committer | Kartik Agaram <vc@akkartik.com> | 2020-12-27 22:38:07 -0800 |
| commit | 4ffe861a452924b468d0b74ed5e29b7cc374555d (patch) | |
| tree | 91bada252684485829bbbbbc0d2f168b5561ba14 /baremetal | |
| parent | 74529e2e62727ea25964c89c79367075dbc2b9c7 (diff) | |
| download | mu-4ffe861a452924b468d0b74ed5e29b7cc374555d.tar.gz | |
7432
Bugfix: 32-bit code in 16-bit mode. Seems like it was benign, maybe.
Diffstat (limited to 'baremetal')
| -rw-r--r-- | baremetal/boot.hex | 10 |
1 files changed, 5 insertions, 5 deletions
diff --git a/baremetal/boot.hex b/baremetal/boot.hex index 441b59eb..ff7a305a 100644 --- a/baremetal/boot.hex +++ b/baremetal/boot.hex @@ -106,11 +106,11 @@ # mostly just for the address to the linear frame buffer b4 4f # ah <- 4f (VBE) b0 01 # al <- 01 (get video mode) - b9 07 01 00 00 # ecx <- 0x0107 (mode we requested) - bf 40 7d 00 00 # edi <- 0x7d40 (video mode info) + b9 07 01 # cx <- 0x0107 (mode we requested) + bf 40 7d # di <- 0x7d40 (video mode info) cd 10 -# 53: +# 4f: # switch to 32-bit mode 0f 01 16 # lgdt 00/mod/indirect 010/subop 110/rm/use-disp16 a0 7c # *gdt_descriptor @@ -120,8 +120,8 @@ ea e0 7c 08 00 # far jump to initialize_32bit_mode after setting cs to the record at offset 8 in the gdt (gdt_code) # padding -# 67: - 00 00 00 00 00 00 00 00 00 +# 63: + 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ## GDT: 3 records of 8 bytes each |