Mercurial > hg > Members > kono > nitros9-code

annotate level1/modules/clock2_disto2.asm @ 2758:e4a0f58a5f9b

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Found that people who do not have the envirornment variable NITROS9DIR set before building the project get a error missing file "/rules.mak". Found this is caused do to the fact that the code to set this envirornment variable is in the rules.mak which can't get loaded. To fix this the code needed to set the envirornment variable that is in the rules.mak is now in the makefile(s) right before the include for the rules.mak file. This should fix the problem for those who do not have the NITROS9DIR envirornment variable preset.
author drencor-xeen
date Mon, 14 Jan 2013 14:37:46 -0600
parents f389c6bca482
children
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1 ********************************************************************
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2 * Clock2 - Disto 2-N-1 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
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12 nam Clock2
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13 ttl Disto 2-N-1 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 $FF50 Base address of 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 RTC Init
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37 nop
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38 nop
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39 bra GetTime RTC Get Time
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40 nop
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41 bra SetTime RTC Set Time
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42
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43 GetTime pshs a,cc Save old interrupt status and mask IRQs
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44 bsr RTCPre
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45
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46 bsr GetVal Get Year
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47 bsr GetVal Get Month
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48 bsr GetVal Get Day
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49 decb ldb #5
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50 stb 2,x
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51 decb
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52 lda ,x
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53 anda #3
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54 bsr GetVal1 Get Hour
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55 bsr GetVal Get Minute
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56 bsr GetVal Get Second
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57
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58 RTCPost clr >$FFD9 2 MHz (Really should check $A0 first)
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59 puls cc,b
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60
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61 IFNE MPIFlag
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62 stb >MPI.Slct Restore saved "currently" selected MPak slot
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63 ENDC
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64
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65 clrb
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66 rts
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67
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68 RTCPre orcc #IntMasks
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69
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70 IFNE MPIFlag
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71 ldb >MPI.Slct Save currently selected MPak slot on stack
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72 stb 3,s
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73 andb #$F0
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74 orb >SlotSlct,pcr Get slot to select
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75 stb >MPI.Slct Select MPak slot for clock
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76 ENDC
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77
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78 ldy #D.Time
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79 ldx M$Mem,pcr
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80 clr 1,x
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81 ldb #12
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82 clr >$FFD8 1 MHz
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83 rts
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84
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85 GetVal stb 2,x
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86 decb
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87 lda ,x read tens digit from clock
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88 anda #$0f
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89 GetVal1 pshs b save b
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90 ldb #10
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91 mul multiply by 10 to get value
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92 stb ,y save 10s value
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93 puls b set up clock for ones digit
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94 stb 2,x
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95 decb
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96 lda ,x read ones digit from clock
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97 anda #$0f
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98 adda ,y add ones + tens
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99 sta ,y+ store clock value into time packet
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100 rts
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101
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102
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103 SetTime pshs a,cc
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104 lbsr RTCPre Initialize
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105
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106 bsr SetVal Set Year
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107 bsr SetVal Set Month
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108 bsr SetVal Set Day
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109 ldd #$0805 $08 in A, $05 in B
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110 bsr SetVal1 Set Hour (OR value in A ($08) with hour)
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111 bsr SetVal Set Minute
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112 bsr SetVal Set Second
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113
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114 lbra RTCPost Clean up + return
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115
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116 SetVal clra
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117 SetVal1 stb 2,x Set Clock address
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118 decb
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119 pshs b
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120 ldb ,y+ Get current value
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121 DvLoop subb #10 Get Tens digit in A, ones digit in B
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122 bcs DvDone
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123 inca
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124 bra DvLoop
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125 DvDone addb #10
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126 sta ,x Store tens digit
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127 tfr b,a
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128 puls b Get back original clock address
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129 stb 2,x
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130 decb
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131 sta ,x Store ones digit
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132 rts
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133
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134 emod
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135 eom equ *
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136 end
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137