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annotate cos/kernel/asmcode.asm @ 18:6129643f5c34

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Fixed interrupt issue, ds, es, ss, fs and gs were not initialized to 0
author windel
date Sun, 20 Nov 2011 20:35:51 +0100
parents f3e3e0e9c4bc
children 66e9c332c845
rev   line source
14
a58904747019 Added asm interrupt handler things, not yet working
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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 global halt
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9 halt:
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10 cli
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11 hlt
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12
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13 global magicBochsBreak
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14 magicBochsBreak:
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15 xchg bx,bx
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16 ret
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17
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18 global loadIDT
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19 loadIDT:
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20 extern idtP
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21 ; TODO: make this pointer thing more insightfull:
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22 ;xchg bx, bx ; For debugging with bochs
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23 lidt [idtP]
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24 ret
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25
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26 %macro pushAll 0
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27 push rax
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28 push rcx
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29 push rdx
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30 push rbx
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31 push rbp
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32 push rsi
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33 push rdi
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34 %endmacro
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35
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36 %macro popAll 0
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37 pop rdi
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38 pop rsi
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39 pop rbp
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40 pop rbx
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41 pop rdx
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42 pop rcx
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43 pop rax
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44 %endmacro
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45
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46 ; Define macro with two arguments:
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47 %macro INTX 2
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48 global %1
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49 %1:
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50 ; Do some saving:
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51 cli
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52 pushAll
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53 ;xchg bx,bx
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54
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55 extern %2
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56 call %2
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57 ; Do restoration
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58 popAll
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59 ;xchg bx, bx
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60 sti
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61 iretq
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62
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63 %endmacro
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64
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65 ; Exception handlers:
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66 INTX INTDEF, INTDEF_handler
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67 INTX INT0, INT0handler
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68 INTX INT1, INT1handler
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69 INTX INT2, INT2handler
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70 INTX INT3, INT3handler
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71 INTX INT4, INT4handler
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72 INTX INT5, INT5handler
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73 INTX INT6, INT6handler
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74 INTX INT7, INT7handler
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75 INTX INT8, INT8handler
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76 INTX INT9, INT9handler
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77 INTX INT10, INT10handler
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78 INTX INT11, INT11handler
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79 INTX INT12, INT12handler
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80 INTX INT13, INT13handler
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81 INTX INT14, INT14handler
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82 INTX INT15, INT15handler
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83 INTX INT16, INT16handler
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84 INTX INT17, INT17handler
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85 INTX INT18, INT18handler
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86 INTX INT19, INT19handler
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87
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88 INTX INT32, INT32handler
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89 INTX INT33, INT33handler
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90 INTX INT34, INT34handler
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91