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| author | Ada Christine <adachristine18@gmail.com> | 2022-02-13 18:47:58 +0000 |
|---|---|---|
| committer | Ada Christine <adachristine18@gmail.com> | 2022-02-13 18:47:58 +0000 |
| commit | e8a76b2f6b53d99640ceb2850bf4e45118b923f1 (patch) | |
| tree | 9e7ab33233883a2db2aa60393b66e6d526edbaf1 /kc/core/cpu/interrupt.h | |
| parent | 78788acf026b21b516fd981d321b0809c07de921 (diff) | |
rudimentary irq and timer support
Diffstat (limited to 'kc/core/cpu/interrupt.h')
| -rw-r--r-- | kc/core/cpu/interrupt.h | 70 |
1 files changed, 70 insertions, 0 deletions
diff --git a/kc/core/cpu/interrupt.h b/kc/core/cpu/interrupt.h new file mode 100644 index 0000000..dff2d99 --- /dev/null +++ b/kc/core/cpu/interrupt.h @@ -0,0 +1,70 @@ +#pragma once + +#ifndef __ASSEMBLER__ +#else + +.macro ISR_STORE_PARAM_REGS +push %rdi +push %rsi +push %rdx +push %rcx +push %r8 +push %r9 +.endm + +#define ISR_PARAM_REGS_SIZE 48 + +.macro ISR_STORE_CALLER_REGS +push %rax +push %r10 +push %r11 +.endm + +#define ISR_CALLER_REGS_SIZE 24 + +.macro ISR_STORE_CALLEE_REGS +push %rbx +push %rbp +push %r12 +push %r13 +push %r14 +push %r15 +.endm + +#define ISR_CALLEE_REGS_SIZE 48 + +.macro ISR_RESTORE_PARAM_REGS +pop %r9 +pop %r8 +pop %rcx +pop %rdx +pop %rsi +pop %rdi +.endm + +.macro ISR_RESTORE_CALLER_REGS +pop %r11 +pop %r10 +pop %rax +.endm + +.macro ISR_RESTORE_CALLEE_REGS +pop %r15 +pop %r14 +pop %r13 +pop %r12 +pop %rbp +pop %rbx +.endm + +.macro ISR_CALL func + // align the stack for the call to the handler function + mov %rsp, %rbp + and $-16, %rsp + call \func + // restore stack pointer, possibly unaligned + mov %rbp, %rsp +.endm + +#endif + |