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annotate level1/modules/clock2_harris.asm @ 1724:f389c6bca482

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New clock2_*.asm files split from single clock2.asm for more source clarity
author boisy
date Fri, 20 Aug 2004 11:11:58 +0000
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1724
f389c6bca482 New clock2_*.asm files split from single clock2.asm for more source clarity
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1 ********************************************************************
f389c6bca482 New clock2_*.asm files split from single clock2.asm for more source clarity
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2 * Clock2 - Harris RTC Driver
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3 *
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4 * $Id$
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5 *
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6 * Edt/Rev YYYY/MM/DD Modified by
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7 * Comment
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8 * ------------------------------------------------------------------
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9 * 1 2004/08/18 Boisy G. Pitre
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10 * Separated clock2 modules for source clarity.
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11
f389c6bca482 New clock2_*.asm files split from single clock2.asm for more source clarity
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12 nam Clock2
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13 ttl Harris RTC Driver
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14
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15 ifp1
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16 use defsfile
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17 endc
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18
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19 tylg set Sbrtn+Objct
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20 atrv set ReEnt+rev
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21 rev set $00
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22 edition set 1
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23
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24 RTC.Base equ $FF60 Base address for clock
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25
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26 mod eom,name,tylg,atrv,JmpTable,RTC.Base
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27
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28 name fcs "Clock2"
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29 fcb edition
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30
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31 IFNE MPIFlag
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32 SlotSlct fcb MPI.Slot-1 Slot constant for MPI select code
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33 ENDC
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34
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35 JmpTable
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36 rts
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37 nop
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38 nop
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39 bra GetTime
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40 nop
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41 lbra SetTime
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42
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43
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44 GetTime pshs cc
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45 orcc #IntMasks Disable interrupts
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46
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47 ldu M$Mem,pcr Get base address
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48 ldy #D.Time Pointer to time in system map
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49
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50 lda #%00001100 Init command register (Normal,Int. Disabled,
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51 sta $11,u Run,24-hour mode, 32kHz)
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52
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53 lda ,u Read base address to set-up clock regs for read
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54 lda 6,u Get year
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55 sta ,y+
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56 lda 4,u Get month
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57 sta ,y+
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58 lda 5,u Get day
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59 sta ,y+
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60 lda 1,u Get hour
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61 sta ,y+
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62 lda 2,u Get minute
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63 sta ,y+
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64 lda 3,u Get second
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65 sta ,y+
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66
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67 puls cc,pc Re-enable interrupts
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68
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69
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70 SetTime pshs cc
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71 orcc #IntMasks Disable interrupts
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72
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73 ldu M$Mem,pcr Get base address
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74 ldy #D.Time Pointer to time in system map
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75
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76 lda #%00000100 Init command register (Normal,Int. Disabled,
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77 sta $11,u STOP clock,24-hour mode, 32kHz)
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78
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79 lda ,y+ Get year
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80 sta 6,u
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81 lda ,y+ Get month
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82 sta 4,u
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83 lda ,y+ Get day
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84 sta 5,u
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85 lda ,y+ Get hour
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86 sta 1,u
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87 lda ,y+ Get minute
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88 sta 2,u
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89 lda ,y Get second
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90 sta 3,u
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91
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92 lda #%00001100 Init command register (Normal,Int. Disabled,
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93 sta $11,u START clock,24-hour mode, 32kHz)
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94
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95 puls cc,pc Re-enable interrupts
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96
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97
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98 emod
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99 eom equ *
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100 end
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101