2017-08-26 22:37:54 +00:00
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1 ********************************
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2 *
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3 * Apple][Sd Firmware
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4 * Version 0.6
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5 *
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6 * (c) Florian Reitz, 2017
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7 *
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8 * X register usually contains SLOT16
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9 * Y register is used for counting or SLOT
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10 *
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11 ********************************
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2017-08-27 13:02:58 +00:00
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12
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2017-09-09 18:34:24 +00:00
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9-SEP-17 19:55
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2017-08-27 13:02:58 +00:00
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14
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2017-08-26 22:37:54 +00:00
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15 XC ; enable 65C02 code
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2017-08-27 13:02:58 +00:00
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16 DEBUG = 0
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17 DO DEBUG
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18 ORG $8000
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19 ELSE
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2017-08-26 22:37:54 +00:00
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20 ORG $C800 ; Expansion ROM
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2017-08-27 13:02:58 +00:00
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21 FIN
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22
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2017-08-26 22:37:54 +00:00
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23 * Memory defines
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2017-08-27 13:02:58 +00:00
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24
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2017-08-26 22:37:54 +00:00
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25 SLOT16 = $2B ; $s0 -> slot * 16
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2017-08-27 13:02:58 +00:00
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26 WORK = $3C
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2017-08-26 22:37:54 +00:00
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27 SLOT = $3D ; $0s
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2017-08-27 13:02:58 +00:00
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28 CMDLO = $40
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29 CMDHI = $41
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30
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2017-08-26 22:37:54 +00:00
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31 CURSLOT = $07F8 ; $Cs
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2017-08-27 13:02:58 +00:00
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32 DATA = $C080
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33 CTRL = DATA+1
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34 DIV = DATA+2
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35 SS = DATA+3
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36 R30 = $0478
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37 R31 = $04F8
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38 R32 = $0578
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39 R33 = $05F8
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40
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41 * Constants
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42
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43 DUMMY = $FF
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44 FRX = $10 ; CTRL register
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45 ECE = $04
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46 SS0 = $01 ; SS register
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47 WP = $20
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2017-09-09 18:34:24 +00:00
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48 CD = $40
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2017-08-27 13:02:58 +00:00
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49 INITED = $80
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50
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51
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52 * signature bytes
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53
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C800: A2 20 54 LDX #$20
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C802: A0 00 55 LDY #$00
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C804: A2 03 56 LDX #$03
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C806: 86 3C 57 STX WORK
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58
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59 * find slot nr
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60
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61 DO DEBUG
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62 LDA #$04
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63 STA SLOT
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64 LDA #$C4
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65 STA CURSLOT
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66 LDA #$40
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67 STA SLOT16
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2017-09-09 18:34:24 +00:00
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68
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69 ELSE
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C808: 20 58 FF 70 JSR $FF58
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C80B: BA 71 TSX
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C80C: BD 00 01 72 LDA $0100,X
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C80F: 8D F8 07 73 STA CURSLOT ; $Cs
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C812: 29 0F 74 AND #$0F
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C814: 85 3D 75 STA SLOT ; $0s
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C816: 0A 76 ASL A
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C817: 0A 77 ASL A
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C818: 0A 78 ASL A
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C819: 0A 79 ASL A
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C81A: 85 2B 80 STA SLOT16 ; $s0
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2017-08-27 13:02:58 +00:00
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81 FIN
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2017-09-09 18:34:24 +00:00
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82
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C81C: AA 83 TAX ; X holds now SLOT16
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C81D: 2C FF CF 84 BIT $CFFF
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C820: 20 B0 CA 85 JSR CARDDET
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C823: 90 03 86 BCC :INIT
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C825: A9 27 87 LDA #$27 ; no card inserted
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C827: 00 88 BRK
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89
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C828: 20 00 C9 90 :INIT JSR INIT
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91
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92
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93 ********************************
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2017-08-27 13:02:58 +00:00
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94 *
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2017-09-09 18:34:24 +00:00
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95 * Install SD card driver
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96 *
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97 ********************************
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2017-08-27 13:02:58 +00:00
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98
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2017-09-09 18:34:24 +00:00
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99 DO DEBUG
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2017-08-27 13:02:58 +00:00
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100
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2017-09-09 18:34:24 +00:00
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101 * see if slot has a driver already
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102
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103 LDX $BF31 ; get devcnt
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104 INSTALL LDA $BF32,X ; get a devnum
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105 AND #$70 ; isolate slot
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106 CMP SLOT16 ; slot?
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107 BEQ :INSOUT ; yes, skip it
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108 DEX
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109 BPL INSTALL ; keep up the search
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2017-08-27 13:02:58 +00:00
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110
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2017-09-09 18:34:24 +00:00
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111 * restore the devnum to the list
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112
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113 LDX $BF31 ; get devcnt again
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114 CPX #$0D ; device table full?
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115 BNE :INST2
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116
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117 JSR $FF3A ; bell
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118 JMP :INSOUT ; do something!
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119
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120 :INST2 LDA $BF32-1,X ; move all entries down
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121 STA $BF32,X ; to make room at front
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122 DEX ; for a new entry
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123 BNE :INST2
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124 LDA #$04 ; ProFile type device
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125 ORA SLOT16
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126 STA $BF32 ; slot, drive 1 at top of list
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127 INC $BF31 ; update devcnt
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2017-08-27 13:02:58 +00:00
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128
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2017-09-09 18:34:24 +00:00
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129 * now insert the device driver vector
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130
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131 LDA SLOT
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132 ASL
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133 TAX
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134 LDA #<DRIVER
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135 STA $BF10,X ; write to driver table
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136 LDA #>DRIVER
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137 STA $BF11,X
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138 :INSOUT RTS
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139
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140
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141 ********************************
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2017-08-27 13:02:58 +00:00
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142 *
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2017-09-09 18:34:24 +00:00
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143 * Boot from SD card
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144 *
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145 ********************************
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2017-08-27 13:02:58 +00:00
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146
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2017-09-09 18:34:24 +00:00
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147 ELSE
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148
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C82B: C9 00 149 BOOT CMP #0 ; check for error
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C82D: F0 01 150 BEQ :BOOT1
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C82F: 00 151 BRK
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152
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C830: A9 01 153 :BOOT1 LDA #$01
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C832: 85 42 154 STA $42 ; load command
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C834: A5 2B 155 LDA SLOT16
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C836: AA 156 TAX
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C837: 85 43 157 STA $43 ; slot number
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C839: 64 44 158 STZ $44 ; buffer lo
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C83B: A9 08 159 LDA #$08
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C83D: 85 45 160 STA $45 ; buffer hi
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C83F: 64 46 161 STZ $46 ; block lo
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C841: 64 47 162 STZ $47 ; block hi
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C843: 2C FF CF 163 BIT $CFFF
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C846: 20 D6 CA 164 JSR READ ; call driver
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C849: 4C 01 08 165 JMP $801 ; goto bootloader
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166
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167 FIN
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168
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2017-08-27 13:02:58 +00:00
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169
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2017-09-09 18:34:24 +00:00
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170 ********************************
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171 *
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172 * Jump table
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173 *
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174 ********************************
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175
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C84C: D8 176 DRIVER CLD
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177
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178 DO DEBUG
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179 LDA #$04
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180 STA SLOT
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181 LDA #$C4
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182 STA CURSLOT
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183 LDA #$40
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184 STA SLOT16
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185
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186 ELSE
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C84D: 20 58 FF 187 JSR $FF58 ; find slot nr
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C850: BA 188 TSX
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C851: BD 00 01 189 LDA $0100,X
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C854: 8D F8 07 190 STA CURSLOT ; $Cs
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C857: 29 0F 191 AND #$0F
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C859: 85 3D 192 STA SLOT ; $0s
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C85B: 0A 193 ASL A
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C85C: 0A 194 ASL A
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C85D: 0A 195 ASL A
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C85E: 0A 196 ASL A
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C85F: 85 2B 197 STA SLOT16 ; $s0
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198 FIN
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199
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C861: AA 200 TAX ; X holds now SLOT16
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C862: 2C FF CF 201 BIT $CFFF
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C865: 20 B0 CA 202 JSR CARDDET
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C868: 90 04 203 BCC :INITED
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C86A: A9 27 204 LDA #$27 ; no card inserted
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C86C: 80 1B 205 BRA :DONE
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206
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C86E: A9 80 207 :INITED LDA #INITED ; check for init
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C870: 3C 83 C0 208 BIT SS,X
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C873: F0 22 209 BEQ :INIT
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210
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C875: A5 42 211 :CMD LDA $42 ; get command
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C877: C9 00 212 CMP #0
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C879: F0 10 213 BEQ :STATUS
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C87B: C9 01 214 CMP #1
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C87D: F0 0F 215 BEQ :READ
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C87F: C9 02 216 CMP #2
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C881: F0 0E 217 BEQ :WRITE
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C883: C9 03 218 CMP #3
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C885: F0 0D 219 BEQ :FORMAT
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C887: A9 01 220 LDA #1 ; unknown command
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2017-08-27 13:02:58 +00:00
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221
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2017-09-09 18:34:24 +00:00
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C889: 38 222 :DONE SEC
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C88A: 60 223 RTS
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224
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C88B: 4C C8 CA 225 :STATUS JMP STATUS
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C88E: 4C D6 CA 226 :READ JMP READ
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C891: 4C 44 CB 227 :WRITE JMP WRITE
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C894: 4C BA CB 228 :FORMAT JMP FORMAT
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C897: 20 00 C9 229 :INIT JSR INIT
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C89A: 80 D9 230 BRA :CMD
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231
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232
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233 * Signature bytes
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234
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C89C: 00 00 00 235 DS \ ; fill with zeroes
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C89F: 00 00 00 00
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C8A3: 00 00 00 00
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C8A7: 00 00 00 00
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C8AB: 00 00 00 00
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C8AF: 00 00 00 00
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C8B3: 00 00 00 00
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C8B7: 00 00 00 00
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C8BB: 00 00 00 00
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C8BF: 00 00 00 00
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C8C3: 00 00 00 00
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C8C7: 00 00 00 00
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C8CB: 00 00 00 00
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C8CF: 00 00 00 00
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C8D3: 00 00 00 00
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C8D7: 00 00 00 00
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C8DB: 00 00 00 00
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C8DF: 00 00 00 00
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C8E3: 00 00 00 00
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C8E7: 00 00 00 00
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C8EB: 00 00 00 00
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C8EF: 00 00 00 00
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C8F3: 00 00 00 00
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C8F7: 00 00 00 00
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C8FB: 00 00 00 00
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C8FF: 00
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236 DS -4 ; locate to $xxFC
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C8FC: 00 00 237 DW $0000 ; use status request
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C8FE: 17 238 DB $17 ; Status bits
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C8FF: 4C 239 DB #<DRIVER ; LSB of driver
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2017-08-27 13:02:58 +00:00
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240
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2017-09-09 18:34:24 +00:00
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241
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242 ********************************
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243 *
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244 * Initialize SD card
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245 *
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246 * C Clear - No error
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247 * Set - Error
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248 * A $00 - No error
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249 * $27 - I/O error - Init failed
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250 * $28 - No card inserted
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251 *
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252 ********************************
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253
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C900: D8 254 INIT CLD
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C901: A9 03 255 LDA #$03 ; set SPI mode 3
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C903: 9D 81 C0 256 STA CTRL,X
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C906: BD 83 C0 257 LDA SS,X
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C909: 09 01 258 ORA #SS0 ; set CS high
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C90B: 9D 83 C0 259 STA SS,X
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C90E: A9 07 260 LDA #7
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C910: 9D 82 C0 261 STA DIV,X
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C913: A0 0A 262 LDY #10
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C915: A9 FF 263 LDA #DUMMY
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264
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C917: 9D 80 C0 265 :LOOP STA DATA,X
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C91A: 3C 81 C0 266 :WAIT BIT CTRL,X
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C91D: 10 FB 267 BPL :WAIT
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C91F: 88 268 DEY
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C920: D0 F5 269 BNE :LOOP ; do 10 times
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C922: BD 83 C0 270 LDA SS,X
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C925: 29 FE 271 AND #$FF!SS0 ; set CS low
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C927: 9D 83 C0 272 STA SS,X
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273
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C92A: A9 BE 274 LDA #<CMD0 ; send CMD0
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C92C: 85 40 275 STA CMDLO
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C92E: A9 CB 276 LDA #>CMD0
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C930: 85 41 277 STA CMDHI
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C932: 20 F2 C9 278 JSR CMD
|
|
|
|
|
C935: 20 06 CA 279 JSR GETR1 ; get response
|
|
|
|
|
C938: C9 01 280 CMP #$01
|
|
|
|
|
C93A: D0 39 281 BNE :ERROR1 ; error!
|
|
|
|
|
282
|
|
|
|
|
C93C: A9 CA 283 LDA #<CMD8 ; send CMD8
|
|
|
|
|
C93E: 85 40 284 STA CMDLO
|
|
|
|
|
C940: A9 CB 285 LDA #>CMD8
|
|
|
|
|
C942: 85 41 286 STA CMDHI
|
|
|
|
|
C944: 20 F2 C9 287 JSR CMD
|
|
|
|
|
C947: 20 21 CA 288 JSR GETR3
|
|
|
|
|
C94A: C9 01 289 CMP #$01
|
|
|
|
|
C94C: D0 2A 290 BNE :SDV1 ; may be SD Ver. 1
|
|
|
|
|
291
|
|
|
|
|
292 * check for $01aa match!
|
|
|
|
|
C94E: A9 D6 293 :SDV2 LDA #<CMD55
|
|
|
|
|
C950: 85 40 294 STA CMDLO
|
|
|
|
|
C952: A9 CB 295 LDA #>CMD55
|
|
|
|
|
C954: 85 41 296 STA CMDHI
|
|
|
|
|
C956: 20 F2 C9 297 JSR CMD
|
|
|
|
|
C959: 20 06 CA 298 JSR GETR1
|
|
|
|
|
C95C: A9 DC 299 LDA #<ACMD4140
|
|
|
|
|
C95E: 85 40 300 STA CMDLO
|
|
|
|
|
C960: A9 CB 301 LDA #>ACMD4140
|
|
|
|
|
C962: 85 41 302 STA CMDHI
|
|
|
|
|
C964: 20 F2 C9 303 JSR CMD
|
|
|
|
|
C967: 20 06 CA 304 JSR GETR1
|
|
|
|
|
C96A: C9 01 305 CMP #$01
|
|
|
|
|
C96C: F0 E0 306 BEQ :SDV2 ; wait for ready
|
|
|
|
|
C96E: C9 00 307 CMP #$00
|
|
|
|
|
C970: D0 03 308 BNE :ERROR1 ; error!
|
|
|
|
|
309 * send CMD58
|
|
|
|
|
310 * SD Ver. 2 initialized!
|
|
|
|
|
C972: 4C B2 C9 311 JMP :BLOCKSZ
|
|
|
|
|
312
|
|
|
|
|
C975: 4C E0 C9 313 :ERROR1 JMP :IOERROR ; needed for far jump
|
|
|
|
|
314
|
|
|
|
|
C978: A9 D6 315 :SDV1 LDA #<CMD55
|
|
|
|
|
C97A: 85 40 316 STA CMDLO
|
|
|
|
|
C97C: A9 CB 317 LDA #>CMD55
|
|
|
|
|
C97E: 85 41 318 STA CMDHI
|
|
|
|
|
C980: 20 F2 C9 319 JSR CMD ; ignore response
|
|
|
|
|
C983: A9 E2 320 LDA #<ACMD410
|
|
|
|
|
C985: 85 40 321 STA CMDLO
|
|
|
|
|
C987: A9 CB 322 LDA #>ACMD410
|
|
|
|
|
C989: 85 41 323 STA CMDHI
|
|
|
|
|
C98B: 20 F2 C9 324 JSR CMD
|
|
|
|
|
C98E: 20 06 CA 325 JSR GETR1
|
|
|
|
|
C991: C9 01 326 CMP #$01
|
|
|
|
|
C993: F0 E3 327 BEQ :SDV1 ; wait for ready
|
|
|
|
|
C995: C9 00 328 CMP #$00
|
|
|
|
|
C997: D0 03 329 BNE :MMC ; may be MMC card
|
|
|
|
|
330 * SD Ver. 1 initialized!
|
|
|
|
|
C999: 4C B2 C9 331 JMP :BLOCKSZ
|
|
|
|
|
332
|
|
|
|
|
C99C: A9 C4 333 :MMC LDA #<CMD1
|
|
|
|
|
C99E: 85 40 334 STA CMDLO
|
|
|
|
|
C9A0: A9 CB 335 LDA #>CMD1
|
|
|
|
|
C9A2: 85 41 336 STA CMDHI
|
|
|
|
|
C9A4: 20 F2 C9 337 :LOOP1 JSR CMD
|
|
|
|
|
C9A7: 20 06 CA 338 JSR GETR1
|
|
|
|
|
C9AA: C9 01 339 CMP #$01
|
|
|
|
|
C9AC: F0 F6 340 BEQ :LOOP1 ; wait for ready
|
|
|
|
|
C9AE: C9 00 341 CMP #$00
|
|
|
|
|
C9B0: D0 2E 342 BNE :IOERROR ; error!
|
|
|
|
|
343 * MMC Ver. 3 initialized!
|
|
|
|
|
344
|
|
|
|
|
C9B2: A9 D0 345 :BLOCKSZ LDA #<CMD16
|
|
|
|
|
C9B4: 85 40 346 STA CMDLO
|
|
|
|
|
C9B6: A9 CB 347 LDA #>CMD16
|
|
|
|
|
C9B8: 85 41 348 STA CMDHI
|
|
|
|
|
C9BA: 20 F2 C9 349 JSR CMD
|
|
|
|
|
C9BD: 20 06 CA 350 JSR GETR1
|
|
|
|
|
C9C0: C9 00 351 CMP #$00
|
|
|
|
|
C9C2: D0 1C 352 BNE :IOERROR ; error!
|
|
|
|
|
353
|
|
|
|
|
C9C4: A4 3D 354 :END LDY SLOT
|
|
|
|
|
C9C6: BD 83 C0 355 LDA SS,X
|
|
|
|
|
C9C9: 09 80 356 ORA #INITED ; initialized
|
|
|
|
|
C9CB: 9D 83 C0 357 STA SS,X
|
|
|
|
|
C9CE: BD 81 C0 358 LDA CTRL,X
|
|
|
|
|
C9D1: 09 04 359 ORA #ECE ; enable 7MHz
|
|
|
|
|
C9D3: 9D 81 C0 360 STA CTRL,X
|
|
|
|
|
C9D6: 18 361 CLC ; all ok
|
|
|
|
|
C9D7: A0 00 362 LDY #0
|
|
|
|
|
C9D9: 90 08 363 BCC :END1
|
|
|
|
|
C9DB: 38 364 :CDERROR SEC
|
|
|
|
|
C9DC: A0 28 365 LDY #$28 ; no card error
|
|
|
|
|
C9DE: B0 03 366 BCS :END1
|
|
|
|
|
C9E0: 38 367 :IOERROR SEC
|
|
|
|
|
C9E1: A0 27 368 LDY #$27 ; init error
|
|
|
|
|
C9E3: BD 83 C0 369 :END1 LDA SS,X ; set CS high
|
|
|
|
|
C9E6: 09 01 370 ORA #SS0
|
|
|
|
|
C9E8: 9D 83 C0 371 STA SS,X
|
|
|
|
|
C9EB: A9 00 372 LDA #0 ; set div to 2
|
|
|
|
|
C9ED: 9D 82 C0 373 STA DIV,X
|
|
|
|
|
C9F0: 98 374 TYA ; retval in A
|
|
|
|
|
C9F1: 60 375 RTS
|
|
|
|
|
376
|
|
|
|
|
377
|
|
|
|
|
378 ********************************
|
|
|
|
|
379 *
|
|
|
|
|
380 * Send SD command
|
|
|
|
|
381 * Call with command in CMDHI and CMDLO
|
|
|
|
|
382 *
|
|
|
|
|
383 ********************************
|
2017-08-27 13:02:58 +00:00
|
|
|
|
384
|
2017-09-09 18:34:24 +00:00
|
|
|
|
C9F2: 5A 385 CMD PHY
|
|
|
|
|
C9F3: A0 00 386 LDY #0
|
|
|
|
|
C9F5: B1 40 387 :LOOP LDA (CMDLO),Y
|
|
|
|
|
C9F7: 9D 80 C0 388 STA DATA,X
|
|
|
|
|
C9FA: 3C 81 C0 389 :WAIT BIT CTRL,X ; TC is in N
|
|
|
|
|
C9FD: 10 FB 390 BPL :WAIT
|
|
|
|
|
C9FF: C8 391 INY
|
|
|
|
|
CA00: C0 06 392 CPY #6
|
|
|
|
|
CA02: 90 F1 393 BCC :LOOP
|
|
|
|
|
CA04: 7A 394 PLY
|
|
|
|
|
CA05: 60 395 RTS
|
|
|
|
|
396
|
|
|
|
|
397
|
|
|
|
|
398 ********************************
|
|
|
|
|
399 *
|
|
|
|
|
400 * Get R1
|
|
|
|
|
401 * R1 is in A
|
|
|
|
|
402 *
|
|
|
|
|
403 ********************************
|
2017-08-27 13:02:58 +00:00
|
|
|
|
404
|
2017-09-09 18:34:24 +00:00
|
|
|
|
CA06: A9 FF 405 GETR1 LDA #DUMMY
|
|
|
|
|
CA08: 9D 80 C0 406 STA DATA,X
|
|
|
|
|
CA0B: 3C 81 C0 407 :WAIT BIT CTRL,X
|
|
|
|
|
CA0E: 10 FB 408 BPL :WAIT
|
|
|
|
|
CA10: BD 80 C0 409 LDA DATA,X ; get response
|
|
|
|
|
CA13: 85 3C 410 STA WORK ; save R1
|
|
|
|
|
CA15: 29 80 411 AND #$80
|
|
|
|
|
CA17: D0 ED 412 BNE GETR1 ; wait for MSB=0
|
|
|
|
|
CA19: A9 FF 413 LDA #DUMMY
|
|
|
|
|
CA1B: 9D 80 C0 414 STA DATA,X ; send another dummy
|
|
|
|
|
CA1E: A5 3C 415 LDA WORK ; restore R1
|
|
|
|
|
CA20: 60 416 RTS
|
|
|
|
|
417
|
|
|
|
|
418
|
|
|
|
|
419 ********************************
|
|
|
|
|
420 *
|
|
|
|
|
421 * Get R3
|
|
|
|
|
422 * R1 is in A
|
|
|
|
|
423 * R3 is in scratchpad ram
|
|
|
|
|
424 *
|
|
|
|
|
425 ********************************
|
|
|
|
|
426
|
|
|
|
|
CA21: 20 06 CA 427 GETR3 JSR GETR1 ; get R1 first
|
|
|
|
|
CA24: 48 428 PHA ; save R1
|
|
|
|
|
CA25: 5A 429 PHY ; save Y
|
|
|
|
|
CA26: A0 04 430 LDY #04 ; load counter
|
|
|
|
|
CA28: A9 FF 431 :LOOP LDA #DUMMY ; send dummy
|
|
|
|
|
CA2A: 9D 80 C0 432 STA DATA,X
|
|
|
|
|
CA2D: 3C 81 C0 433 :WAIT BIT CTRL,X
|
|
|
|
|
CA30: 10 FB 434 BPL :WAIT
|
|
|
|
|
CA32: BD 80 C0 435 LDA DATA,X
|
|
|
|
|
CA35: 48 436 PHA
|
|
|
|
|
CA36: 88 437 DEY
|
|
|
|
|
CA37: D0 EF 438 BNE :LOOP ; do 4 times
|
|
|
|
|
CA39: A4 3D 439 LDY SLOT
|
|
|
|
|
CA3B: 68 440 PLA
|
|
|
|
|
CA3C: 99 F8 05 441 STA R33,Y ; save R3
|
|
|
|
|
CA3F: 68 442 PLA
|
|
|
|
|
CA40: 99 78 05 443 STA R32,Y
|
|
|
|
|
CA43: 68 444 PLA
|
|
|
|
|
CA44: 99 F8 04 445 STA R31,Y
|
|
|
|
|
CA47: 68 446 PLA
|
|
|
|
|
CA48: 99 78 04 447 STA R30,Y
|
|
|
|
|
CA4B: 7A 448 PLY ; restore Y
|
|
|
|
|
CA4C: A9 FF 449 LDA #DUMMY
|
|
|
|
|
CA4E: 9D 80 C0 450 STA DATA,X ; send another dummy
|
|
|
|
|
CA51: 68 451 PLA ; restore R1
|
|
|
|
|
CA52: 60 452 RTS
|
|
|
|
|
453
|
|
|
|
|
454
|
|
|
|
|
455 ********************************
|
|
|
|
|
456 *
|
|
|
|
|
457 * Calculate block address
|
|
|
|
|
458 * Unit number is in $43 DSSS0000
|
|
|
|
|
459 * Block no is in $46-47
|
|
|
|
|
460 * Address is in R30-R33
|
|
|
|
|
461 *
|
|
|
|
|
462 ********************************
|
|
|
|
|
463
|
|
|
|
|
CA53: DA 464 BLOCK PHX ; save X
|
|
|
|
|
CA54: 5A 465 PHY ; save Y
|
|
|
|
|
CA55: A6 3D 466 LDX SLOT
|
|
|
|
|
CA57: A5 46 467 LDA $46 ; store block num
|
|
|
|
|
CA59: 9D F8 05 468 STA R33,X ; in R30-R33
|
|
|
|
|
CA5C: A5 47 469 LDA $47
|
|
|
|
|
CA5E: 9D 78 05 470 STA R32,X
|
|
|
|
|
CA61: A9 00 471 LDA #0
|
|
|
|
|
CA63: 9D F8 04 472 STA R31,X
|
|
|
|
|
CA66: 9D 78 04 473 STA R30,X
|
|
|
|
|
474
|
|
|
|
|
CA69: A9 80 475 LDA #$80 ; drive number
|
|
|
|
|
CA6B: 24 43 476 BIT $43
|
|
|
|
|
CA6D: F0 05 477 BEQ :SHIFT ; D1
|
|
|
|
|
CA6F: A9 01 478 LDA #1 ; D2
|
|
|
|
|
CA71: 9D F8 04 479 STA R31,X
|
|
|
|
|
480
|
|
|
|
|
CA74: A0 09 481 :SHIFT LDY #9 ; ASL can't be used with Y
|
|
|
|
|
CA76: 1E F8 05 482 :LOOP ASL R33,X ; mul block num
|
|
|
|
|
CA79: 3E 78 05 483 ROL R32,X ; by 512 to get
|
|
|
|
|
CA7C: 3E F8 04 484 ROL R31,X ; real address
|
|
|
|
|
CA7F: 3E 78 04 485 ROL R30,X
|
|
|
|
|
CA82: 88 486 DEY
|
|
|
|
|
CA83: D0 F1 487 BNE :LOOP
|
|
|
|
|
CA85: 7A 488 PLY ; restore Y
|
|
|
|
|
CA86: FA 489 PLX ; restore X
|
|
|
|
|
CA87: 60 490 RTS
|
|
|
|
|
491
|
|
|
|
|
492
|
|
|
|
|
493 ********************************
|
|
|
|
|
494 *
|
|
|
|
|
495 * Send SD command
|
|
|
|
|
496 * Cmd is in A
|
|
|
|
|
497 *
|
2017-08-27 13:02:58 +00:00
|
|
|
|
498 ********************************
|
2017-09-09 18:34:24 +00:00
|
|
|
|
499
|
|
|
|
|
CA88: 5A 500 COMMAND PHY ; save Y
|
|
|
|
|
CA89: A4 3D 501 LDY SLOT
|
|
|
|
|
CA8B: 9D 80 C0 502 STA DATA,X ; send command
|
|
|
|
|
CA8E: B9 78 04 503 LDA R30,Y ; get arg from R30 on
|
|
|
|
|
CA91: 9D 80 C0 504 STA DATA,X
|
|
|
|
|
CA94: B9 F8 04 505 LDA R31,Y
|
|
|
|
|
CA97: 9D 80 C0 506 STA DATA,X
|
|
|
|
|
CA9A: B9 78 05 507 LDA R32,Y
|
|
|
|
|
CA9D: 9D 80 C0 508 STA DATA,X
|
|
|
|
|
CAA0: B9 F8 05 509 LDA R33,Y
|
|
|
|
|
CAA3: 9D 80 C0 510 STA DATA,X
|
|
|
|
|
CAA6: A9 FF 511 LDA #DUMMY
|
|
|
|
|
CAA8: 9D 80 C0 512 STA DATA,X ; dummy crc
|
|
|
|
|
CAAB: 20 06 CA 513 JSR GETR1
|
|
|
|
|
CAAE: 7A 514 PLY ; restore Y
|
|
|
|
|
CAAF: 60 515 RTS
|
|
|
|
|
516
|
|
|
|
|
517
|
|
|
|
|
518 ********************************
|
|
|
|
|
519 *
|
|
|
|
|
520 * Check for card detect
|
|
|
|
|
521 *
|
|
|
|
|
522 * C Clear - card in slot
|
|
|
|
|
523 * Set - no card in slot
|
|
|
|
|
524 *
|
2017-08-27 13:02:58 +00:00
|
|
|
|
525 ********************************
|
2017-09-09 18:34:24 +00:00
|
|
|
|
526
|
|
|
|
|
CAB0: 48 527 CARDDET PHA
|
|
|
|
|
CAB1: A9 40 528 LDA #CD ; 0: card in
|
|
|
|
|
CAB3: 3C 83 C0 529 BIT SS,X ; 1: card out
|
|
|
|
|
CAB6: 18 530 CLC
|
|
|
|
|
CAB7: F0 01 531 BEQ :DONE ; card is in
|
|
|
|
|
CAB9: 38 532 SEC ; card is out
|
|
|
|
|
CABA: 68 533 :DONE PLA
|
|
|
|
|
CABB: 60 534 RTS
|
|
|
|
|
535
|
|
|
|
|
536
|
|
|
|
|
537 ********************************
|
|
|
|
|
538 *
|
|
|
|
|
539 * Check for write protect
|
|
|
|
|
540 *
|
|
|
|
|
541 * C Clear - card not protected
|
|
|
|
|
542 * Set - card write protected
|
|
|
|
|
543 *
|
|
|
|
|
544 ********************************
|
|
|
|
|
545
|
|
|
|
|
CABC: 48 546 WRPROT PHA
|
|
|
|
|
CABD: A9 20 547 LDA #WP ; 0: write enabled
|
|
|
|
|
CABF: 3C 83 C0 548 BIT SS,X ; 1: write disabled
|
|
|
|
|
CAC2: 18 549 CLC
|
|
|
|
|
CAC3: F0 01 550 BEQ :DONE
|
|
|
|
|
CAC5: 38 551 SEC
|
|
|
|
|
CAC6: 68 552 :DONE PLA
|
|
|
|
|
CAC7: 60 553 RTS
|
|
|
|
|
554
|
|
|
|
|
555
|
|
|
|
|
556 ********************************
|
|
|
|
|
557 *
|
|
|
|
|
558 * Status request
|
|
|
|
|
559 * $43 Unit number DSSS000
|
|
|
|
|
560 * $44-45 Unused
|
|
|
|
|
561 * $46-47 Unused
|
|
|
|
|
562 *
|
|
|
|
|
563 * C Clear - No error
|
|
|
|
|
564 * Set - Error
|
|
|
|
|
565 * A $00 - No error
|
|
|
|
|
566 * $27 - I/O error
|
|
|
|
|
567 * $28 - No card inserted / no init
|
|
|
|
|
568 * $2B - Card write protected
|
|
|
|
|
569 * X - Blocks avail (low byte)
|
|
|
|
|
570 * Y - Blocks avail (high byte)
|
|
|
|
|
571 *
|
|
|
|
|
572 ********************************
|
|
|
|
|
573
|
|
|
|
|
CAC8: A9 00 574 STATUS LDA #0 ; no error
|
|
|
|
|
CACA: A2 FF 575 LDX #$FF ; 32 MB partition
|
|
|
|
|
CACC: A0 FF 576 LDY #$FF
|
|
|
|
|
577
|
|
|
|
|
CACE: 20 BC CA 578 JSR WRPROT
|
|
|
|
|
CAD1: 90 02 579 BCC :DONE
|
|
|
|
|
CAD3: A9 2B 580 LDA #$2B ; card write protected
|
|
|
|
|
581
|
|
|
|
|
CAD5: 60 582 :DONE RTS
|
|
|
|
|
583
|
|
|
|
|
584
|
|
|
|
|
585 ********************************
|
|
|
|
|
586 *
|
|
|
|
|
587 * Read 512 byte block
|
|
|
|
|
588 * $43 Unit number DSSS0000
|
|
|
|
|
589 * $44-45 Address (LO/HI) of buffer
|
|
|
|
|
590 * $46-47 Block number (LO/HI)
|
|
|
|
|
591 *
|
|
|
|
|
592 * C Clear - No error
|
|
|
|
|
593 * Set - Error
|
|
|
|
|
594 * A $00 - No error
|
|
|
|
|
595 * $27 - Bad block number
|
|
|
|
|
596 * $28 - No card inserted
|
|
|
|
|
597 *
|
2017-08-27 13:02:58 +00:00
|
|
|
|
598 ********************************
|
2017-09-09 18:34:24 +00:00
|
|
|
|
599
|
|
|
|
|
CAD6: 20 B0 CA 600 READ JSR CARDDET
|
|
|
|
|
CAD9: B0 64 601 BCS :ERROR ; no card inserted
|
|
|
|
|
602
|
|
|
|
|
CADB: 20 53 CA 603 JSR BLOCK ; calc block address
|
|
|
|
|
604
|
|
|
|
|
CADE: BD 83 C0 605 LDA SS,X ; enable /CS
|
|
|
|
|
CAE1: 29 FE 606 AND #$FF!SS0
|
|
|
|
|
CAE3: 9D 83 C0 607 STA SS,X
|
|
|
|
|
CAE6: A9 51 608 LDA #$51 ; send CMD17
|
|
|
|
|
CAE8: 20 88 CA 609 JSR COMMAND ; send command
|
|
|
|
|
610
|
|
|
|
|
CAEB: C9 00 611 CMP #0 ; check for error
|
|
|
|
|
CAED: D0 50 612 BNE :ERROR
|
2017-08-27 13:02:58 +00:00
|
|
|
|
613
|
2017-09-09 18:34:24 +00:00
|
|
|
|
CAEF: A9 FF 614 :GETTOK LDA #DUMMY ; get data token
|
|
|
|
|
CAF1: 9D 80 C0 615 STA DATA,X
|
|
|
|
|
CAF4: BD 80 C0 616 LDA DATA,X ; get response
|
|
|
|
|
CAF7: C9 FE 617 CMP #$FE
|
|
|
|
|
CAF9: D0 F4 618 BNE :GETTOK ; wait for $FE
|
|
|
|
|
619
|
|
|
|
|
CAFB: A0 02 620 LDY #2 ; read data from card
|
|
|
|
|
CAFD: BD 81 C0 621 LDA CTRL,X ; enable FRX
|
|
|
|
|
CB00: 09 10 622 ORA #FRX
|
|
|
|
|
CB02: 9D 81 C0 623 STA CTRL,X
|
|
|
|
|
CB05: A9 FF 624 LDA #DUMMY
|
|
|
|
|
CB07: 9D 80 C0 625 STA DATA,X
|
|
|
|
|
CB0A: 64 3C 626 :LOOPY STZ WORK
|
|
|
|
|
CB0C: BD 80 C0 627 :LOOPW LDA DATA,X
|
|
|
|
|
CB0F: 92 44 628 STA ($44)
|
|
|
|
|
CB11: E6 44 629 INC $44
|
|
|
|
|
CB13: D0 02 630 BNE :INW
|
|
|
|
|
CB15: E6 45 631 INC $45 ; inc msb on page boundary
|
|
|
|
|
CB17: E6 3C 632 :INW INC WORK
|
|
|
|
|
CB19: D0 F1 633 BNE :LOOPW
|
|
|
|
|
CB1B: 88 634 DEY
|
|
|
|
|
CB1C: D0 EC 635 BNE :LOOPY
|
|
|
|
|
636
|
|
|
|
|
CB1E: BD 80 C0 637 :CRC LDA DATA,X ; read two bytes crc
|
|
|
|
|
CB21: BD 80 C0 638 LDA DATA,X ; and ignore
|
|
|
|
|
CB24: BD 80 C0 639 LDA DATA,X ; read a dummy byte
|
|
|
|
|
640
|
|
|
|
|
CB27: BD 81 C0 641 LDA CTRL,X ; disable FRX
|
|
|
|
|
CB2A: 29 EF 642 AND #$FF!FRX
|
|
|
|
|
CB2C: 9D 81 C0 643 STA CTRL,X
|
|
|
|
|
CB2F: 18 644 CLC ; no error
|
|
|
|
|
CB30: A9 00 645 LDA #0
|
2017-08-27 13:02:58 +00:00
|
|
|
|
646
|
2017-09-09 18:34:24 +00:00
|
|
|
|
CB32: 08 647 :DONE PHP
|
|
|
|
|
CB33: 48 648 PHA
|
|
|
|
|
CB34: BD 83 C0 649 LDA SS,X
|
|
|
|
|
CB37: 09 01 650 ORA #SS0
|
|
|
|
|
CB39: 9D 83 C0 651 STA SS,X ; disable /CS
|
|
|
|
|
CB3C: 68 652 PLA
|
|
|
|
|
CB3D: 28 653 PLP
|
|
|
|
|
CB3E: 60 654 RTS
|
|
|
|
|
655
|
|
|
|
|
CB3F: 38 656 :ERROR SEC ; an error occured
|
|
|
|
|
CB40: A9 27 657 LDA #$27
|
|
|
|
|
CB42: 80 EE 658 BRA :DONE
|
|
|
|
|
659
|
|
|
|
|
660
|
|
|
|
|
661 ********************************
|
|
|
|
|
662 *
|
|
|
|
|
663 * Write 512 byte block
|
|
|
|
|
664 * $43 Unit number DSSS0000
|
|
|
|
|
665 * $44-45 Address (LO/HI) of buffer
|
|
|
|
|
666 * $46-47 Block number (LO/HI)
|
|
|
|
|
667 *
|
|
|
|
|
668 * C Clear - No error
|
|
|
|
|
669 * Set - Error
|
|
|
|
|
670 * A $00 - No error
|
|
|
|
|
671 * $27 - I/O error or bad block number
|
|
|
|
|
672 * $2B - Card write protected
|
|
|
|
|
673 *
|
|
|
|
|
674 ********************************
|
|
|
|
|
675
|
|
|
|
|
CB44: 20 B0 CA 676 WRITE JSR CARDDET
|
|
|
|
|
CB47: B0 67 677 BCS :IOERROR ; no card inserted
|
2017-08-27 13:02:58 +00:00
|
|
|
|
678
|
2017-09-09 18:34:24 +00:00
|
|
|
|
CB49: 20 BC CA 679 JSR WRPROT
|
|
|
|
|
CB4C: B0 67 680 BCS :WPERROR ; card write protected
|
|
|
|
|
681
|
|
|
|
|
CB4E: 20 53 CA 682 JSR BLOCK ; calc block address
|
|
|
|
|
683
|
|
|
|
|
CB51: BD 83 C0 684 LDA SS,X ; enable /CS
|
|
|
|
|
CB54: 29 FE 685 AND #$FF!SS0
|
|
|
|
|
CB56: 9D 83 C0 686 STA SS,X
|
|
|
|
|
CB59: A9 58 687 LDA #$58 ; send CMD24
|
|
|
|
|
CB5B: 20 88 CA 688 JSR COMMAND ; send command
|
|
|
|
|
689
|
|
|
|
|
CB5E: C9 00 690 CMP #0 ; check for error
|
|
|
|
|
CB60: D0 4E 691 BNE :IOERROR
|
|
|
|
|
692
|
|
|
|
|
CB62: A9 FF 693 LDA #DUMMY
|
|
|
|
|
CB64: 9D 80 C0 694 STA DATA,X ; send dummy
|
|
|
|
|
CB67: A9 FE 695 LDA #$FE
|
|
|
|
|
CB69: 9D 80 C0 696 STA DATA,X ; send data token
|
|
|
|
|
697
|
|
|
|
|
CB6C: A0 02 698 LDY #2 ; send data to card
|
|
|
|
|
CB6E: 64 3C 699 :LOOPY STZ WORK
|
|
|
|
|
CB70: B2 44 700 :LOOPW LDA ($44)
|
|
|
|
|
CB72: 9D 80 C0 701 STA DATA,X
|
|
|
|
|
CB75: E6 44 702 INC $44
|
|
|
|
|
CB77: D0 02 703 BNE :INW
|
|
|
|
|
CB79: E6 45 704 INC $45 ; inc msb on page boundary
|
|
|
|
|
CB7B: E6 3C 705 :INW INC WORK
|
|
|
|
|
CB7D: D0 F1 706 BNE :LOOPW
|
|
|
|
|
CB7F: 88 707 DEY
|
|
|
|
|
CB80: D0 EC 708 BNE :LOOPY
|
|
|
|
|
709
|
|
|
|
|
CB82: 9D 80 C0 710 :CRC STA DATA,X ; send 2 dummy crc bytes
|
|
|
|
|
CB85: 9D 80 C0 711 STA DATA,X
|
|
|
|
|
712
|
|
|
|
|
CB88: 9D 80 C0 713 STA DATA,X ; get data response
|
|
|
|
|
CB8B: BD 80 C0 714 LDA DATA,X
|
|
|
|
|
CB8E: 29 1F 715 AND #$1F
|
|
|
|
|
CB90: C9 05 716 CMP #$05
|
|
|
|
|
CB92: D0 1C 717 BNE :IOERROR ; check for write error
|
|
|
|
|
CB94: 18 718 CLC ; no error
|
|
|
|
|
CB95: A9 00 719 LDA #0
|
|
|
|
|
720
|
|
|
|
|
CB97: 08 721 :DONE PHP
|
|
|
|
|
CB98: 48 722 PHA
|
|
|
|
|
CB99: A9 FF 723 :WAIT LDA #DUMMY
|
|
|
|
|
CB9B: 9D 80 C0 724 STA DATA,X ; wait for write cycle
|
|
|
|
|
CB9E: BD 80 C0 725 LDA DATA,X ; to complete
|
|
|
|
|
CBA1: C9 00 726 CMP #$00
|
|
|
|
|
CBA3: F0 F4 727 BEQ :WAIT
|
|
|
|
|
728
|
|
|
|
|
CBA5: BD 83 C0 729 LDA SS,X ; disable /CS
|
|
|
|
|
CBA8: 09 01 730 ORA #SS0
|
|
|
|
|
CBAA: 9D 83 C0 731 STA SS,X
|
|
|
|
|
CBAD: 68 732 PLA
|
|
|
|
|
CBAE: 28 733 PLP
|
|
|
|
|
CBAF: 60 734 RTS
|
|
|
|
|
735
|
|
|
|
|
CBB0: 38 736 :IOERROR SEC ; an error occured
|
|
|
|
|
CBB1: A9 27 737 LDA #$27
|
|
|
|
|
CBB3: 80 E2 738 BRA :DONE
|
|
|
|
|
739
|
|
|
|
|
CBB5: 38 740 :WPERROR SEC
|
|
|
|
|
CBB6: A9 2B 741 LDA #$2B
|
|
|
|
|
CBB8: 80 DD 742 BRA :DONE
|
|
|
|
|
743
|
|
|
|
|
744
|
|
|
|
|
745
|
|
|
|
|
746 ********************************
|
|
|
|
|
747 *
|
|
|
|
|
748 * Format
|
|
|
|
|
749 * not supported!
|
|
|
|
|
750 *
|
|
|
|
|
751 ********************************
|
|
|
|
|
752
|
|
|
|
|
CBBA: 38 753 FORMAT SEC
|
|
|
|
|
CBBB: A9 01 754 LDA #$01 ; invalid command
|
|
|
|
|
CBBD: 60 755 RTS
|
|
|
|
|
756
|
|
|
|
|
757
|
|
|
|
|
CBBE: 40 00 00 758 CMD0 HEX 400000
|
|
|
|
|
CBC1: 00 00 95 759 HEX 000095
|
|
|
|
|
CBC4: 41 00 00 760 CMD1 HEX 410000
|
|
|
|
|
CBC7: 00 00 F9 761 HEX 0000F9
|
|
|
|
|
CBCA: 48 00 00 762 CMD8 HEX 480000
|
|
|
|
|
CBCD: 01 AA 87 763 HEX 01AA87
|
|
|
|
|
CBD0: 50 00 00 764 CMD16 HEX 500000
|
|
|
|
|
CBD3: 02 00 FF 765 HEX 0200FF
|
|
|
|
|
CBD6: 77 00 00 766 CMD55 HEX 770000
|
|
|
|
|
CBD9: 00 00 65 767 HEX 000065
|
|
|
|
|
CBDC: 69 40 00 768 ACMD4140 HEX 694000
|
|
|
|
|
CBDF: 00 00 77 769 HEX 000077
|
|
|
|
|
CBE2: 69 00 00 770 ACMD410 HEX 690000
|
|
|
|
|
CBE5: 00 00 FF 771 HEX 0000FF
|
2017-08-26 22:37:54 +00:00
|
|
|
|
|
|
|
|
|
|
2017-09-09 18:34:24 +00:00
|
|
|
|
--End assembly, 1000 bytes, Errors: 0
|
2017-08-27 13:02:58 +00:00
|
|
|
|
|
2017-08-26 22:37:54 +00:00
|
|
|
|
|
2017-08-27 13:02:58 +00:00
|
|
|
|
Symbol table - alphabetical order:
|
2017-08-26 22:37:54 +00:00
|
|
|
|
|
2017-09-09 18:34:24 +00:00
|
|
|
|
ACMD410 =$CBE2 ACMD4140=$CBDC BLOCK =$CA53 ? BOOT =$C82B
|
|
|
|
|
CARDDET =$CAB0 CD =$40 CMD =$C9F2 CMD0 =$CBBE
|
|
|
|
|
CMD1 =$CBC4 CMD16 =$CBD0 CMD55 =$CBD6 CMD8 =$CBCA
|
|
|
|
|
CMDHI =$41 CMDLO =$40 COMMAND =$CA88 CTRL =$C081
|
|
|
|
|
CURSLOT =$07F8 DATA =$C080 DEBUG =$00 DIV =$C082
|
|
|
|
|
DRIVER =$C84C DUMMY =$FF ECE =$04 FORMAT =$CBBA
|
|
|
|
|
FRX =$10 GETR1 =$CA06 GETR3 =$CA21 INIT =$C900
|
|
|
|
|
INITED =$80 R30 =$0478 R31 =$04F8 R32 =$0578
|
|
|
|
|
R33 =$05F8 READ =$CAD6 SLOT =$3D SLOT16 =$2B
|
|
|
|
|
SS =$C083 SS0 =$01 STATUS =$CAC8 WORK =$3C
|
|
|
|
|
WP =$20 WRITE =$CB44 WRPROT =$CABC
|
2017-08-26 22:37:54 +00:00
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Symbol table - numerical order:
|
|
|
|
|
|
2017-08-27 13:02:58 +00:00
|
|
|
|
DEBUG =$00 SS0 =$01 ECE =$04 FRX =$10
|
2017-09-09 18:34:24 +00:00
|
|
|
|
WP =$20 SLOT16 =$2B WORK =$3C SLOT =$3D
|
|
|
|
|
CMDLO =$40 CD =$40 CMDHI =$41 INITED =$80
|
2017-08-27 13:02:58 +00:00
|
|
|
|
DUMMY =$FF R30 =$0478 R31 =$04F8 R32 =$0578
|
|
|
|
|
R33 =$05F8 CURSLOT =$07F8 DATA =$C080 CTRL =$C081
|
2017-09-09 18:34:24 +00:00
|
|
|
|
DIV =$C082 SS =$C083 ? BOOT =$C82B DRIVER =$C84C
|
|
|
|
|
INIT =$C900 CMD =$C9F2 GETR1 =$CA06 GETR3 =$C<><43><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ύ<EFBFBD><CF8D><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD> <20><><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD>䍪<EFBFBD><E48DAA><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EE8D8D><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD> READ =$CADF WRITE =$CB4D FORMAT =$CBC3
|
|
|
|
|
CMD0 =$CBC7 CMD1 =$CBCD <20>CBDF ACMD4140=$CBE5 ACMD410 =$CBEB
|
2017-08-26 22:37:54 +00:00
|
|
|
|
|