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14
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1 ; The default interrupt handlers.
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2 ; from 20 - 31 are reserved vectors.
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3 ; below are the custom ones!
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4
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5 section .text
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6 align 4
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7
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8 ; Port helpers:
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9 global outb
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10 outb:
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11 mov eax, [esp + 8]
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12 mov edx, [esp + 4]
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13 out dx, al
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14 ret
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15
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16 global inb
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17 inb:
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18 xor eax, eax
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19 mov edx, [esp + 4]
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20 in al, dx
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21 ret
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22
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23 ; Helper functions:
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24 global enableinterrupts
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25 enableinterrupts:
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26 sti
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27 ret
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28
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29 global halt
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30 halt:
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31 cli
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32 hlt
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33
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34 global loadIDT
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35 loadIDT:
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36 ret
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37
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38 ; Define macro with two arguments:
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39 %macro INTX 2
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40 global %1
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41 %1:
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42 ; Do some saving:
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43 extern %2
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44 call %2
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45 ; Do restoration
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46 iret
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47
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48 %endmacro
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49
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50 ; Exception handlers:
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51 INTX INTDEF, INTDEF_handler
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52 INTX INT0, INT0handler
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53 INTX INT1, INT1handler
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54 INTX INT2, INT2handler
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55 INTX INT3, INT3handler
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56 INTX INT4, INT4handler
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57 INTX INT5, INT5handler
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58 INTX INT6, INT6handler
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59 INTX INT7, INT7handler
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60 INTX INT8, INT8handler
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61 INTX INT9, INT9handler
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62 INTX INT10, INT10handler
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63 INTX INT11, INT11handler
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64 INTX INT12, INT12handler
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65 INTX INT13, INT13handler
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66 INTX INT14, INT14handler
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67 INTX INT15, INT15handler
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68 INTX INT16, INT16handler
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69 INTX INT17, INT17handler
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70 INTX INT18, INT18handler
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71 INTX INT19, INT19handler
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72
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73 INTX INT32, INT32handler
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74 INTX INT33, INT33handler
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75 INTX INT34, INT34handler
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76
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