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| author | Amlal El Mahrouss <amlal@nekernel.org> | 2025-05-02 19:38:46 +0200 |
|---|---|---|
| committer | GitHub <noreply@github.com> | 2025-05-02 19:38:46 +0200 |
| commit | 997be16e5ac9a68d54882ab69529815860d62955 (patch) | |
| tree | 19d6129c2d776bb1edc5d4a7325e39ca176c3403 /dev/boot/src/HEL/AMD64/BootAPI.S | |
| parent | 618104e74c195d7508a18450524f8ed7f9af8cc6 (diff) | |
| parent | b3b4b1ebdcd6adeac914869017c86d892b7a8ced (diff) | |
Merge pull request #28 from nekernel-org/dev
0.0.2
Diffstat (limited to 'dev/boot/src/HEL/AMD64/BootAPI.S')
| -rw-r--r-- | dev/boot/src/HEL/AMD64/BootAPI.S | 47 |
1 files changed, 46 insertions, 1 deletions
diff --git a/dev/boot/src/HEL/AMD64/BootAPI.S b/dev/boot/src/HEL/AMD64/BootAPI.S index 963ef46a..43775fc2 100644 --- a/dev/boot/src/HEL/AMD64/BootAPI.S +++ b/dev/boot/src/HEL/AMD64/BootAPI.S @@ -52,9 +52,54 @@ reset_wait: .global boot_read_cr3 boot_read_cr3: - mov rax, rax + mov rax, cr3 ret boot_write_cr3: mov cr3, rcx ret + +.section .text + +.extern rt_wait_400ns + +.global rt_out8 +.global rt_out16 +.global rt_out32 + +.global rt_in8 +.global rt_in16 +.global rt_in32 + +rt_out8: + mov al, dl + mov dx, cx + out dx, al + ret + +rt_out16: + mov ax, dx + mov dx, cx + out dx, ax + ret + +rt_out32: + mov eax, edx + mov edx, ecx + out dx, eax + ret + +rt_in8: + mov dx, cx + in al, dx + ret + +rt_in16: + mov edx, ecx + in ax, dx + ret + +rt_in32: + mov rdx, rcx + in eax, dx + ret
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