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annotate cos/kernel/asmcode.asm @ 29:7e3bdcb391dc

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Added get_page function to mm
author windel
date Thu, 29 Dec 2011 19:34:01 +0100
parents 47b7df514243
children 88590c42320f
rev   line source
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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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d3c4bf3720a3 Beginning of multitasking
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8 ; Function to read the current instruction pointer value:
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9 global read_rip
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10 read_rip:
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11 pop rax
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12 jmp rax
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13
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14 global loadIDT
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15 loadIDT:
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16 extern idtP
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17 ; TODO: make this pointer thing more insightfull:
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18 lidt [idtP]
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19 ret
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20
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21 %macro pushAll 0
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22 push rax
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23 push rcx
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24 push rdx
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25 push rbx
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26 push rbp
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27 push rsi
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28 push rdi
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29 %endmacro
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30
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31 %macro popAll 0
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32 pop rdi
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33 pop rsi
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34 pop rbp
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35 pop rbx
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36 pop rdx
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37 pop rcx
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38 pop rax
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39 %endmacro
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40
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41 ; Define macro with two arguments:
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42 %macro INTX 2
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43 global %1
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44 %1:
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45 ; Do some saving:
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46 cli
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47 pushAll
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48 ;xchg bx,bx
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49
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50 extern %2
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51 call %2
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52 ; Do restoration
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53 popAll
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54 ;xchg bx, bx
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55 sti
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56 iretq
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57
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58 %endmacro
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59
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60 ; Exception handlers:
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61 INTX INTDEF, INTDEF_handler
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62 INTX INT0, INT0handler
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63 INTX INT1, INT1handler
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64 INTX INT2, INT2handler
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65 INTX INT3, INT3handler
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66 INTX INT4, INT4handler
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67 INTX INT5, INT5handler
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68 INTX INT6, INT6handler
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69 INTX INT7, INT7handler
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70 INTX INT8, INT8handler
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71 INTX INT9, INT9handler
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72 INTX INT10, INT10handler
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73 INTX INT11, INT11handler
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74 INTX INT12, INT12handler
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75 INTX INT13, INT13handler
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76 INTX INT14, INT14handler
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77 INTX INT15, INT15handler
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78 INTX INT16, INT16handler
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79 INTX INT17, INT17handler
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80 INTX INT18, INT18handler
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81 INTX INT19, INT19handler
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82
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83 INTX INT32, INT32handler
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84 INTX INT33, INT33handler
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85 INTX INT34, INT34handler
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86