diff options
| author | Alejandro Sior <aho@sior.be> | 2022-05-19 08:45:26 +0200 |
|---|---|---|
| committer | Alejandro Sior <aho@sior.be> | 2022-05-19 08:45:26 +0200 |
| commit | 776a3710652f78b44718450406d0683974aef72a (patch) | |
| tree | 84f1b70e07b831d13db8c53c0ab0030ec0d85c09 /bios/drive/+x86_64/drive.s | |
| parent | e50cbe8eb763cf63fb44b047d5164f6fbf07eb39 (diff) | |
bios: stub calls interrupt number; simplified bios.ha main interface
Instead of having the bios.call stub calling a function, make it directly call an interrupt that is
changed dynamically by modifying the code at runtime.
Simplify the bios.ha interface and document it.
Next up: implementing a high level drive interface for the BIOS using BIOS interrupts
Diffstat (limited to 'bios/drive/+x86_64/drive.s')
| -rw-r--r-- | bios/drive/+x86_64/drive.s | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/bios/drive/+x86_64/drive.s b/bios/drive/+x86_64/drive.s new file mode 100644 index 0000000..1f3828e --- /dev/null +++ b/bios/drive/+x86_64/drive.s @@ -0,0 +1,7 @@ +.code16 + +.globl bios.drive.read +bios.drive.read: + mov $0x2, %ah + int $0x13 + ret |