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| author | Carlos Maiolino <[email protected]> | 2025-08-01 21:03:16 +0200 |
|---|---|---|
| committer | Carlos Maiolino <[email protected]> | 2025-08-01 21:03:16 +0200 |
| commit | 2725b95a1f78d2feac553d37252f2e560c2f9aac (patch) | |
| tree | 3e68aaf21c25fc2a46e3ee29fb4f23b188e3b3a4 /src/idt/idt.asm | |
| parent | 57d8e2b236c7a185bdd941c247ef0dcc5961a24e (diff) | |
Setup interrupt handling
Remap master PIC to IOAddress 0x20 to avoid collisions with CPU
exceptions.
Setup a default interrupt handler and map all interrupts to this handler
by default.
Setup a Keyboard interrupt handler for testing purposes
Wire everything up in the Makefile
Signed-off-by: Carlos Maiolino <[email protected]>
Diffstat (limited to 'src/idt/idt.asm')
| -rw-r--r-- | src/idt/idt.asm | 24 |
1 files changed, 23 insertions, 1 deletions
diff --git a/src/idt/idt.asm b/src/idt/idt.asm index 998a242..235f46b 100644 --- a/src/idt/idt.asm +++ b/src/idt/idt.asm @@ -1,6 +1,12 @@ section .asm -global idt_load: +extern int21h_handler +extern default_int_handler + +global int21h +global default_handler +global idt_load + idt_load: push ebp @@ -11,3 +17,19 @@ idt_load: pop ebp ret + +int21h: + cli + pushad ; Push all general-purpose registers to the stack + call int21h_handler + popad + sti + iret + +default_handler: + cli + pushad ; Push all general-purpose registers to the stack + call default_int_handler + popad + sti + iret |