8259A
ax1
bx2
dx3
cx4
si5
di5
sp7
bp8
es
ss9
ds10
cs11
ip
8259A
0x20, I/O-Port Interrupt Controller
0xA0, I/O-Port zweiter Interrupt Controller
#define NR_REGS 11 #define ES_REG 7 #define DS_REG 8 #define CS_REG 9 #define SS_REG 10Interrupt Vektoren
#define DIVIDE_VECTOR 0 #define CLOCK_VECTOR 8 #define KEYBOARD_VECTOR 9 #define XT_WINI_VECTOR 13 #define FLOPPY_VECTOR 14 #define PRINTER_VECTOR 15 #define SYS_VECTOR 32 #define ATA_WINI_VECTOR 1188259A
#define INT_CTL 0x20 /* I/O-Port fuer Interrupt Controller */ #define INT_CTLMASK 0x21 /* Bits auf diesem Port setzen verbietet Interrupts */ #define INT2_CTL 0xA0 #define INT2_MASK 0xA1 ...