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author | jhb <jhb@FreeBSD.org> | 2003-09-10 01:07:04 +0000 |
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committer | jhb <jhb@FreeBSD.org> | 2003-09-10 01:07:04 +0000 |
commit | 16813b69977310dc2533b60862f5e68f7e19e983 (patch) | |
tree | 90ea25ec88f9daad93e8c3cb1af55a4653f71050 /sys/i386/include | |
parent | 2bba7f535951f7aa2ad42629ab3c624b9a84fafa (diff) | |
download | FreeBSD-src-16813b69977310dc2533b60862f5e68f7e19e983.zip FreeBSD-src-16813b69977310dc2533b60862f5e68f7e19e983.tar.gz |
Add constants for entries in the IDT and use those instead of magic
numbers.
Diffstat (limited to 'sys/i386/include')
-rw-r--r-- | sys/i386/include/segments.h | 24 |
1 files changed, 24 insertions, 0 deletions
diff --git a/sys/i386/include/segments.h b/sys/i386/include/segments.h index 95117da..1877b07 100644 --- a/sys/i386/include/segments.h +++ b/sys/i386/include/segments.h @@ -181,6 +181,30 @@ struct region_descriptor { #define NRSVIDT 32 /* reserved entries for cpu exceptions */ /* + * Entries in the Interrupt Descriptor Table (IDT) + */ +#define IDT_DE 0 /* #DE: Divide Error */ +#define IDT_DB 1 /* #DB: Debug */ +#define IDT_NMI 2 /* Nonmaskable External Interrupt */ +#define IDT_BP 3 /* #BP: Breakpoint */ +#define IDT_OF 4 /* #OF: Overflow */ +#define IDT_BR 5 /* #BR: Bound Range Exceeded */ +#define IDT_UD 6 /* #UD: Undefined/Invalid Opcode */ +#define IDT_NM 7 /* #NM: No Math Coprocessor */ +#define IDT_DF 8 /* #DF: Double Fault */ +#define IDT_FPUGP 9 /* Coprocessor Segment Overrun */ +#define IDT_TS 10 /* #TS: Invalid TSS */ +#define IDT_NP 11 /* #NP: Segment Not Present */ +#define IDT_SS 12 /* #SS: Stack Segment Fault */ +#define IDT_GP 13 /* #GP: General Protection Fault */ +#define IDT_PF 14 /* #PF: Page Fault */ +#define IDT_MF 16 /* #MF: FPU Floating-Point Error */ +#define IDT_AC 17 /* #AC: Alignment Check */ +#define IDT_MC 18 /* #MC: Machine Check */ +#define IDT_XF 19 /* #XF: SIMD Floating-Point Exception */ +#define IDT_SYSCALL 0x80 /* System Call Interrupt Vector */ + +/* * Entries in the Global Descriptor Table (GDT) */ #define GNULL_SEL 0 /* Null Descriptor */ |