forked from Apple-2-HW/AppleIISd
930 lines
39 KiB
Plaintext
930 lines
39 KiB
Plaintext
1 ********************************
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2 *
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3 * Apple][Sd Firmware
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4 * Version 0.7
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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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12
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15-OCT-17 16:35
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14
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15 XC ; enable 65C02 code
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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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20 ORG $C800 ; Expansion ROM
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21 FIN
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22
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23 * Memory defines
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24
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25 SLOT16 = $2B ; $s0 -> slot * 16
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26 WORK = $3C
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27 SLOT = $3D ; $0s
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28 CMDLO = $40
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29 CMDHI = $41
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30
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31 DCMD = $42 ; Command code
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32 BUFFER = $44 ; Buffer address
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33 BLOCK = $46 ; Block number
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34
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35 CURSLOT = $07F8 ; $Cs
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36 DATA = $C080
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37 CTRL = DATA+1
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38 DIV = DATA+2
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39 SS = DATA+3
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40 R30 = $0478
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41 R31 = $04F8
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42 R32 = $0578
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43 R33 = $05F8
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44
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45 * Constants
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46
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47 DUMMY = $FF
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48 FRX = $10 ; CTRL register
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49 ECE = $04
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50 SS0 = $01 ; SS register
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51 WP = $20
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52 CD = $40
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53 INITED = $80
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54
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55
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56 * signature bytes
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57
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C800: A2 20 58 LDX #$20
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C802: A0 00 59 LDY #$00
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C804: A2 03 60 LDX #$03
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C806: A0 FF 61 LDY #$FF ; neither 5.25 nor Smartport
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62
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63 * find slot nr
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64
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65 DO DEBUG
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66 LDA #$04
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67 STA SLOT
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68 LDA #$C4
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69 STA CURSLOT
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70 LDA #$40
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71
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72 ELSE
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C808: 20 58 FF 73 JSR $FF58
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C80B: BA 74 TSX
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C80C: BD 00 01 75 LDA $0100,X
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C80F: 8D F8 07 76 STA CURSLOT ; $Cs
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C812: 29 0F 77 AND #$0F
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C814: 85 3D 78 STA SLOT ; $0s
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C816: 0A 79 ASL A
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C817: 0A 80 ASL A
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C818: 0A 81 ASL A
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C819: 0A 82 ASL A
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83 FIN
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84
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C81A: 85 2B 85 STA SLOT16 ; $s0
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C81C: AA 86 TAX ; X holds now SLOT16
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C81D: 2C FF CF 87 BIT $CFFF
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C820: 20 AE CA 88 JSR CARDDET
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C823: 90 03 89 BCC :INIT
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C825: A9 27 90 LDA #$27 ; no card inserted
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C827: 00 91 BRK
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92
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C828: 20 00 C9 93 :INIT JSR INIT
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94
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95
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96 ********************************
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97 *
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98 * Install SD card driver
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99 *
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100 ********************************
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101
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102 DO DEBUG
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103
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104 * see if slot has a driver already
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105
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106 LDX $BF31 ; get devcnt
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107 INSTALL LDA $BF32,X ; get a devnum
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108 AND #$70 ; isolate slot
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109 CMP SLOT16 ; slot?
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110 BEQ :INSOUT ; yes, skip it
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111 DEX
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112 BPL INSTALL ; keep up the search
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113
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114 * restore the devnum to the list
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115
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116 LDX $BF31 ; get devcnt again
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117 CPX #$0D ; device table full?
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118 BNE :INST2
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119
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120 JSR $FF3A ; bell
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121 JMP :INSOUT ; do something!
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122
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123 :INST2 LDA $BF32-1,X ; move all entries down
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124 STA $BF32,X ; to make room at front
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125 DEX ; for a new entry
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126 BNE :INST2
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127 LDA #$04 ; ProFile type device
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128 ORA SLOT16
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129 STA $BF32 ; slot, drive 1 at top of list
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130 INC $BF31 ; update devcnt
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131
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132 * now insert the device driver vector
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133
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134 LDA SLOT
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135 ASL
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136 TAX
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137 LDA #<DRIVER
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138 STA $BF10,X ; write to driver table
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139 LDA #>DRIVER
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140 STA $BF11,X
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141 :INSOUT RTS
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142
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143
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144 ********************************
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145 *
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146 * Boot from SD card
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147 *
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148 ********************************
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149
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150 ELSE
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151
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C82B: C9 00 152 BOOT CMP #0 ; check for error
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C82D: F0 01 153 BEQ :BOOT1
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C82F: 00 154 BRK
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155
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C830: A9 01 156 :BOOT1 LDA #$01
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C832: 85 42 157 STA DCMD ; load command
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C834: A6 2B 158 LDX SLOT16
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C836: 85 43 159 STA $43 ; slot number
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C838: 64 44 160 STZ BUFFER ; buffer lo
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C83A: A9 08 161 LDA #$08
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C83C: 85 45 162 STA BUFFER+1 ; buffer hi
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C83E: 64 46 163 STZ BLOCK ; block lo
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C840: 64 47 164 STZ BLOCK+1 ; block hi
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C842: 2C FF CF 165 BIT $CFFF
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C845: 20 DD CA 166 JSR READ ; call driver
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C848: 4C 01 08 167 JMP $801 ; goto bootloader
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168
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169 FIN
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170
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171
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172 ********************************
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173 *
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174 * Jump table
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175 *
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176 ********************************
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177
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C84B: D8 178 DRIVER CLD
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179
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180 DO DEBUG
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181 LDA #$04
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182 STA SLOT
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183 LDA #$C4
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184 STA CURSLOT
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185 LDA #$40
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186
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187 ELSE
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C84C: 20 58 FF 188 JSR $FF58 ; find slot nr
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C84F: BA 189 TSX
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C850: BD 00 01 190 LDA $0100,X
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C853: 8D F8 07 191 STA CURSLOT ; $Cs
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C856: 29 0F 192 AND #$0F
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C858: 85 3D 193 STA SLOT ; $0s
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C85A: 0A 194 ASL A
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C85B: 0A 195 ASL A
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C85C: 0A 196 ASL A
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C85D: 0A 197 ASL A
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198 FIN
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199
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C85E: 85 2B 200 STA SLOT16 ; $s0
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C860: AA 201 TAX ; X holds now SLOT16
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C861: 2C FF CF 202 BIT $CFFF
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C864: 20 AE CA 203 JSR CARDDET
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C867: 90 04 204 BCC :INITED
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C869: A9 27 205 LDA #$27 ; no card inserted
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C86B: 80 1B 206 BRA :DONE
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207
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C86D: A9 80 208 :INITED LDA #INITED ; check for init
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C86F: 3C 83 C0 209 BIT SS,X
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C872: F0 22 210 BEQ :INIT
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211
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C874: A5 42 212 :CMD LDA DCMD ; get command
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C876: C9 00 213 CMP #0
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C878: F0 10 214 BEQ :STATUS
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C87A: C9 01 215 CMP #1
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C87C: F0 0F 216 BEQ :READ
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C87E: C9 02 217 CMP #2
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C880: F0 0E 218 BEQ :WRITE
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C882: C9 03 219 CMP #3
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C884: F0 0D 220 BEQ :FORMAT
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221 DO DEBUG
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222 CMP #$FF
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223 BEQ :TEST
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224 FIN
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C886: A9 01 225 LDA #1 ; unknown command
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226
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C888: 38 227 :DONE SEC
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C889: 60 228 RTS
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229
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C88A: 4C C6 CA 230 :STATUS JMP STATUS
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C88D: 4C DD CA 231 :READ JMP READ
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C890: 4C 4B CB 232 :WRITE JMP WRITE
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C893: 4C C1 CB 233 :FORMAT JMP FORMAT
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C896: 20 00 C9 234 :INIT JSR INIT
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C899: B0 ED 235 BCS :DONE ; init failure
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C89B: 80 D7 236 BRA :CMD
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237
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238 DO DEBUG
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239 :TEST JMP TEST ; do device test
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240 FIN
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241
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242
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243 * Signature bytes
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244
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C89D: 00 00 00 245 DS \ ; fill with zeroes
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C8A0: 00 00 00 00
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C8A4: 00 00 00 00
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C8A8: 00 00 00 00
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C8AC: 00 00 00 00
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C8B0: 00 00 00 00
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C8B4: 00 00 00 00
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C8B8: 00 00 00 00
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C8BC: 00 00 00 00
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C8C0: 00 00 00 00
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C8C4: 00 00 00 00
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C8C8: 00 00 00 00
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C8CC: 00 00 00 00
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C8D0: 00 00 00 00
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C8D4: 00 00 00 00
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C8D8: 00 00 00 00
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C8DC: 00 00 00 00
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C8E0: 00 00 00 00
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C8E4: 00 00 00 00
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C8E8: 00 00 00 00
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C8EC: 00 00 00 00
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C8F0: 00 00 00 00
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C8F4: 00 00 00 00
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C8F8: 00 00 00 00
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C8FC: 00 00 00 00
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246 DS -4 ; locate to $xxFC
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C8FC: FF FF 247 DW $FFFF ; 65535 blocks
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C8FE: 17 248 DB $17 ; Status bits
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C8FF: 4B 249 DB #<DRIVER ; LSB of driver
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250
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251
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252 ********************************
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253 *
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254 * Initialize SD card
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255 *
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256 * C Clear - No error
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257 * Set - Error
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258 * A $00 - No error
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259 * $27 - I/O error - Init failed
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260 * $2F - No card inserted
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261 *
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262 ********************************
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263
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C900: D8 264 INIT CLD
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C901: A9 03 265 LDA #$03 ; set SPI mode 3
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C903: 9D 81 C0 266 STA CTRL,X
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C906: BD 83 C0 267 LDA SS,X
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C909: 09 01 268 ORA #SS0 ; set CS high
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C90B: 9D 83 C0 269 STA SS,X
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C90E: A9 07 270 LDA #7
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C910: 9D 82 C0 271 STA DIV,X
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C913: A0 0A 272 LDY #10
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C915: A9 FF 273 LDA #DUMMY
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274
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C917: 9D 80 C0 275 :LOOP STA DATA,X
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C91A: 3C 81 C0 276 :WAIT BIT CTRL,X
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C91D: 10 FB 277 BPL :WAIT
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C91F: 88 278 DEY
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C920: D0 F5 279 BNE :LOOP ; do 10 times
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C922: BD 83 C0 280 LDA SS,X
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C925: 29 FE 281 AND #$FF!SS0 ; set CS low
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C927: 9D 83 C0 282 STA SS,X
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283
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C92A: A9 C5 284 LDA #<CMD0 ; send CMD0
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C92C: 85 40 285 STA CMDLO
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C92E: A9 CB 286 LDA #>CMD0
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C930: 85 41 287 STA CMDHI
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C932: 20 F0 C9 288 JSR CMD
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C935: 20 04 CA 289 JSR GETR1 ; get response
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C938: C9 01 290 CMP #$01
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C93A: D0 39 291 BNE :ERROR1 ; error!
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292
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C93C: A9 D1 293 LDA #<CMD8 ; send CMD8
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C93E: 85 40 294 STA CMDLO
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C940: A9 CB 295 LDA #>CMD8
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C942: 85 41 296 STA CMDHI
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C944: 20 F0 C9 297 JSR CMD
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C947: 20 1F CA 298 JSR GETR3
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C94A: C9 01 299 CMP #$01
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C94C: D0 2A 300 BNE :SDV1 ; may be SD Ver. 1
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301
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302 * check for $01aa match!
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C94E: A9 DD 303 :SDV2 LDA #<CMD55
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C950: 85 40 304 STA CMDLO
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C952: A9 CB 305 LDA #>CMD55
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C954: 85 41 306 STA CMDHI
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C956: 20 F0 C9 307 JSR CMD
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C959: 20 04 CA 308 JSR GETR1
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C95C: A9 E3 309 LDA #<ACMD4140
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C95E: 85 40 310 STA CMDLO
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C960: A9 CB 311 LDA #>ACMD4140
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C962: 85 41 312 STA CMDHI
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C964: 20 F0 C9 313 JSR CMD
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C967: 20 04 CA 314 JSR GETR1
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C96A: C9 01 315 CMP #$01
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C96C: F0 E0 316 BEQ :SDV2 ; wait for ready
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C96E: C9 00 317 CMP #$00
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C970: D0 03 318 BNE :ERROR1 ; error!
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319 * send CMD58
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320 * SD Ver. 2 initialized!
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C972: 4C B2 C9 321 JMP :BLOCKSZ
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322
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C975: 4C DE C9 323 :ERROR1 JMP :IOERROR ; needed for far jump
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324
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C978: A9 DD 325 :SDV1 LDA #<CMD55
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C97A: 85 40 326 STA CMDLO
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C97C: A9 CB 327 LDA #>CMD55
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C97E: 85 41 328 STA CMDHI
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C980: 20 F0 C9 329 JSR CMD ; ignore response
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C983: A9 E9 330 LDA #<ACMD410
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C985: 85 40 331 STA CMDLO
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C987: A9 CB 332 LDA #>ACMD410
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C989: 85 41 333 STA CMDHI
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C98B: 20 F0 C9 334 JSR CMD
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C98E: 20 04 CA 335 JSR GETR1
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C991: C9 01 336 CMP #$01
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C993: F0 E3 337 BEQ :SDV1 ; wait for ready
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C995: C9 00 338 CMP #$00
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C997: D0 03 339 BNE :MMC ; may be MMC card
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340 * SD Ver. 1 initialized!
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C999: 4C B2 C9 341 JMP :BLOCKSZ
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342
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C99C: A9 CB 343 :MMC LDA #<CMD1
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C99E: 85 40 344 STA CMDLO
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C9A0: A9 CB 345 LDA #>CMD1
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C9A2: 85 41 346 STA CMDHI
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C9A4: 20 F0 C9 347 :LOOP1 JSR CMD
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C9A7: 20 04 CA 348 JSR GETR1
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C9AA: C9 01 349 CMP #$01
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C9AC: F0 F6 350 BEQ :LOOP1 ; wait for ready
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C9AE: C9 00 351 CMP #$00
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C9B0: D0 2C 352 BNE :IOERROR ; error!
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353 * MMC Ver. 3 initialized!
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354
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C9B2: A9 D7 355 :BLOCKSZ LDA #<CMD16
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C9B4: 85 40 356 STA CMDLO
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C9B6: A9 CB 357 LDA #>CMD16
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C9B8: 85 41 358 STA CMDHI
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C9BA: 20 F0 C9 359 JSR CMD
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C9BD: 20 04 CA 360 JSR GETR1
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C9C0: C9 00 361 CMP #$00
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C9C2: D0 1A 362 BNE :IOERROR ; error!
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363
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C9C4: BD 83 C0 364 :END LDA SS,X
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C9C7: 09 80 365 ORA #INITED ; initialized
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C9C9: 9D 83 C0 366 STA SS,X
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C9CC: BD 81 C0 367 LDA CTRL,X
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C9CF: 09 04 368 ORA #ECE ; enable 7MHz
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C9D1: 9D 81 C0 369 STA CTRL,X
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C9D4: 18 370 CLC ; all ok
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C9D5: A0 00 371 LDY #0
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C9D7: 90 08 372 BCC :END1
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C9D9: 38 373 :CDERROR SEC
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C9DA: A0 2F 374 LDY #$2F ; no card error
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C9DC: B0 03 375 BCS :END1
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C9DE: 38 376 :IOERROR SEC
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C9DF: A0 27 377 LDY #$27 ; init error
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C9E1: BD 83 C0 378 :END1 LDA SS,X ; set CS high
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C9E4: 09 01 379 ORA #SS0
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C9E6: 9D 83 C0 380 STA SS,X
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C9E9: A9 00 381 LDA #0 ; set div to 2
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C9EB: 9D 82 C0 382 STA DIV,X
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C9EE: 98 383 TYA ; retval in A
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C9EF: 60 384 RTS
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385
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386
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387 ********************************
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388 *
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389 * Send SD command
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390 * Call with command in CMDHI and CMDLO
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391 *
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392 ********************************
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393
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C9F0: 5A 394 CMD PHY
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C9F1: A0 00 395 LDY #0
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C9F3: B1 40 396 :LOOP LDA (CMDLO),Y
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C9F5: 9D 80 C0 397 STA DATA,X
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C9F8: 3C 81 C0 398 :WAIT BIT CTRL,X ; TC is in N
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C9FB: 10 FB 399 BPL :WAIT
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C9FD: C8 400 INY
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C9FE: C0 06 401 CPY #6
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CA00: 90 F1 402 BCC :LOOP
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CA02: 7A 403 PLY
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CA03: 60 404 RTS
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405
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406
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407 ********************************
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408 *
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409 * Get R1
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410 * R1 is in A
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411 *
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412 ********************************
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413
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CA04: A9 FF 414 GETR1 LDA #DUMMY
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CA06: 9D 80 C0 415 STA DATA,X
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CA09: 3C 81 C0 416 :WAIT BIT CTRL,X
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CA0C: 10 FB 417 BPL :WAIT
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CA0E: BD 80 C0 418 LDA DATA,X ; get response
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CA11: 85 3C 419 STA WORK ; save R1
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CA13: 29 80 420 AND #$80
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CA15: D0 ED 421 BNE GETR1 ; wait for MSB=0
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CA17: A9 FF 422 LDA #DUMMY
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CA19: 9D 80 C0 423 STA DATA,X ; send another dummy
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CA1C: A5 3C 424 LDA WORK ; restore R1
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CA1E: 60 425 RTS
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426
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427
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428 ********************************
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429 *
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430 * Get R3
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431 * R1 is in A
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432 * R3 is in scratchpad ram
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433 *
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434 ********************************
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435
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CA1F: 20 04 CA 436 GETR3 JSR GETR1 ; get R1 first
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CA22: 48 437 PHA ; save R1
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CA23: 5A 438 PHY ; save Y
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CA24: A0 04 439 LDY #04 ; load counter
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CA26: A9 FF 440 :LOOP LDA #DUMMY ; send dummy
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CA28: 9D 80 C0 441 STA DATA,X
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CA2B: 3C 81 C0 442 :WAIT BIT CTRL,X
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CA2E: 10 FB 443 BPL :WAIT
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CA30: BD 80 C0 444 LDA DATA,X
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CA33: 48 445 PHA
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CA34: 88 446 DEY
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CA35: D0 EF 447 BNE :LOOP ; do 4 times
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CA37: A4 3D 448 LDY SLOT
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CA39: 68 449 PLA
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CA3A: 99 F8 05 450 STA R33,Y ; save R3
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CA3D: 68 451 PLA
|
||
CA3E: 99 78 05 452 STA R32,Y
|
||
CA41: 68 453 PLA
|
||
CA42: 99 F8 04 454 STA R31,Y
|
||
CA45: 68 455 PLA
|
||
CA46: 99 78 04 456 STA R30,Y
|
||
CA49: 7A 457 PLY ; restore Y
|
||
CA4A: A9 FF 458 LDA #DUMMY
|
||
CA4C: 9D 80 C0 459 STA DATA,X ; send another dummy
|
||
CA4F: 68 460 PLA ; restore R1
|
||
CA50: 60 461 RTS
|
||
462
|
||
463
|
||
464 ********************************
|
||
465 *
|
||
466 * Calculate block address
|
||
467 * Unit number is in $43 DSSS0000
|
||
468 * Block no is in $46-47
|
||
469 * Address is in R30-R33
|
||
470 *
|
||
471 ********************************
|
||
472
|
||
CA51: DA 473 GETBLOCK PHX ; save X
|
||
CA52: 5A 474 PHY ; save Y
|
||
CA53: A6 3D 475 LDX SLOT
|
||
CA55: A5 46 476 LDA BLOCK ; store block num
|
||
CA57: 9D F8 05 477 STA R33,X ; in R30-R33
|
||
CA5A: A5 47 478 LDA BLOCK+1
|
||
CA5C: 9D 78 05 479 STA R32,X
|
||
CA5F: A9 00 480 LDA #0
|
||
CA61: 9D F8 04 481 STA R31,X
|
||
CA64: 9D 78 04 482 STA R30,X
|
||
483
|
||
CA67: A9 80 484 LDA #$80 ; drive number
|
||
CA69: 24 43 485 BIT $43
|
||
CA6B: F0 05 486 BEQ :SHIFT ; D1
|
||
CA6D: A9 01 487 LDA #1 ; D2
|
||
CA6F: 9D F8 04 488 STA R31,X
|
||
489
|
||
CA72: A0 09 490 :SHIFT LDY #9 ; ASL can't be used with Y
|
||
CA74: 1E F8 05 491 :LOOP ASL R33,X ; mul block num
|
||
CA77: 3E 78 05 492 ROL R32,X ; by 512 to get
|
||
CA7A: 3E F8 04 493 ROL R31,X ; real address
|
||
CA7D: 3E 78 04 494 ROL R30,X
|
||
CA80: 88 495 DEY
|
||
CA81: D0 F1 496 BNE :LOOP
|
||
CA83: 7A 497 PLY ; restore Y
|
||
CA84: FA 498 PLX ; restore X
|
||
CA85: 60 499 RTS
|
||
500
|
||
501
|
||
502 ********************************
|
||
503 *
|
||
504 * Send SD command
|
||
505 * Cmd is in A
|
||
506 *
|
||
507 ********************************
|
||
508
|
||
CA86: 5A 509 COMMAND PHY ; save Y
|
||
CA87: A4 3D 510 LDY SLOT
|
||
CA89: 9D 80 C0 511 STA DATA,X ; send command
|
||
CA8C: B9 78 04 512 LDA R30,Y ; get arg from R30 on
|
||
CA8F: 9D 80 C0 513 STA DATA,X
|
||
CA92: B9 F8 04 514 LDA R31,Y
|
||
CA95: 9D 80 C0 515 STA DATA,X
|
||
CA98: B9 78 05 516 LDA R32,Y
|
||
CA9B: 9D 80 C0 517 STA DATA,X
|
||
CA9E: B9 F8 05 518 LDA R33,Y
|
||
CAA1: 9D 80 C0 519 STA DATA,X
|
||
CAA4: A9 FF 520 LDA #DUMMY
|
||
CAA6: 9D 80 C0 521 STA DATA,X ; dummy crc
|
||
CAA9: 20 04 CA 522 JSR GETR1
|
||
CAAC: 7A 523 PLY ; restore Y
|
||
CAAD: 60 524 RTS
|
||
525
|
||
526
|
||
527 ********************************
|
||
528 *
|
||
529 * Check for card detect
|
||
530 *
|
||
531 * C Clear - card in slot
|
||
532 * Set - no card in slot
|
||
533 *
|
||
534 ********************************
|
||
535
|
||
CAAE: 48 536 CARDDET PHA
|
||
CAAF: A9 40 537 LDA #CD ; 0: card in
|
||
CAB1: 3C 83 C0 538 BIT SS,X ; 1: card out
|
||
CAB4: 18 539 CLC
|
||
CAB5: F0 01 540 BEQ :DONE ; card is in
|
||
CAB7: 38 541 SEC ; card is out
|
||
CAB8: 68 542 :DONE PLA
|
||
CAB9: 60 543 RTS
|
||
544
|
||
545
|
||
546 ********************************
|
||
547 *
|
||
548 * Check for write protect
|
||
549 *
|
||
550 * C Clear - card not protected
|
||
551 * Set - card write protected
|
||
552 *
|
||
553 ********************************
|
||
554
|
||
CABA: 48 555 WRPROT PHA
|
||
CABB: A9 20 556 LDA #WP ; 0: write enabled
|
||
CABD: 3C 83 C0 557 BIT SS,X ; 1: write disabled
|
||
CAC0: 18 558 CLC
|
||
CAC1: F0 01 559 BEQ :DONE
|
||
CAC3: 38 560 SEC
|
||
CAC4: 68 561 :DONE PLA
|
||
CAC5: 60 562 RTS
|
||
563
|
||
564
|
||
565 ********************************
|
||
566 *
|
||
567 * Status request
|
||
568 * $43 Unit number DSSS000
|
||
569 * $44-45 Unused
|
||
570 * $46-47 Unused
|
||
571 *
|
||
572 * C Clear - No error
|
||
573 * Set - Error
|
||
574 * A $00 - No error
|
||
575 * $2B - Card write protected
|
||
576 * $2F - No card inserted
|
||
577 * X - Blocks avail (low byte)
|
||
578 * Y - Blocks avail (high byte)
|
||
579 *
|
||
580 ********************************
|
||
581
|
||
CAC6: A9 00 582 STATUS LDA #0 ; no error
|
||
CAC8: A2 FF 583 LDX #$FF ; 32 MB partition
|
||
CACA: A0 FF 584 LDY #$FF
|
||
585
|
||
CACC: 20 AE CA 586 JSR CARDDET
|
||
CACF: 90 04 587 BCC :WRPROT
|
||
CAD1: A9 2F 588 LDA #$2F ; no card inserted
|
||
CAD3: 80 07 589 BRA :DONE
|
||
590
|
||
CAD5: 20 BA CA 591 :WRPROT JSR WRPROT
|
||
CAD8: 90 02 592 BCC :DONE
|
||
CADA: A9 2B 593 LDA #$2B ; card write protected
|
||
594
|
||
CADC: 60 595 :DONE RTS
|
||
596
|
||
597
|
||
598 ********************************
|
||
599 *
|
||
600 * Read 512 byte block
|
||
601 * $43 Unit number DSSS0000
|
||
602 * $44-45 Address (LO/HI) of buffer
|
||
603 * $46-47 Block number (LO/HI)
|
||
604 *
|
||
605 * C Clear - No error
|
||
606 * Set - Error
|
||
607 * A $00 - No error
|
||
608 * $27 - Bad block number
|
||
609 * $28 - No card inserted
|
||
610 *
|
||
611 ********************************
|
||
612
|
||
CADD: 20 AE CA 613 READ JSR CARDDET
|
||
CAE0: B0 64 614 BCS :ERROR ; no card inserted
|
||
615
|
||
CAE2: 20 51 CA 616 JSR GETBLOCK ; calc block address
|
||
617
|
||
CAE5: BD 83 C0 618 LDA SS,X ; enable /CS
|
||
CAE8: 29 FE 619 AND #$FF!SS0
|
||
CAEA: 9D 83 C0 620 STA SS,X
|
||
CAED: A9 51 621 LDA #$51 ; send CMD17
|
||
CAEF: 20 86 CA 622 JSR COMMAND ; send command
|
||
623
|
||
CAF2: C9 00 624 CMP #0 ; check for error
|
||
CAF4: D0 50 625 BNE :ERROR
|
||
626
|
||
CAF6: A9 FF 627 :GETTOK LDA #DUMMY ; get data token
|
||
CAF8: 9D 80 C0 628 STA DATA,X
|
||
CAFB: BD 80 C0 629 LDA DATA,X ; get response
|
||
CAFE: C9 FE 630 CMP #$FE
|
||
CB00: D0 F4 631 BNE :GETTOK ; wait for $FE
|
||
632
|
||
CB02: A0 02 633 LDY #2 ; read data from card
|
||
CB04: BD 81 C0 634 LDA CTRL,X ; enable FRX
|
||
CB07: 09 10 635 ORA #FRX
|
||
CB09: 9D 81 C0 636 STA CTRL,X
|
||
CB0C: A9 FF 637 LDA #DUMMY
|
||
CB0E: 9D 80 C0 638 STA DATA,X
|
||
CB11: 64 3C 639 :LOOPY STZ WORK
|
||
CB13: BD 80 C0 640 :LOOPW LDA DATA,X
|
||
CB16: 92 44 641 STA (BUFFER)
|
||
CB18: E6 44 642 INC BUFFER
|
||
CB1A: D0 02 643 BNE :INW
|
||
CB1C: E6 45 644 INC BUFFER+1 ; inc msb on page boundary
|
||
CB1E: E6 3C 645 :INW INC WORK
|
||
CB20: D0 F1 646 BNE :LOOPW
|
||
CB22: 88 647 DEY
|
||
CB23: D0 EC 648 BNE :LOOPY
|
||
649
|
||
CB25: BD 80 C0 650 :CRC LDA DATA,X ; read two bytes crc
|
||
CB28: BD 80 C0 651 LDA DATA,X ; and ignore
|
||
CB2B: BD 80 C0 652 LDA DATA,X ; read a dummy byte
|
||
653
|
||
CB2E: BD 81 C0 654 LDA CTRL,X ; disable FRX
|
||
CB31: 29 EF 655 AND #$FF!FRX
|
||
CB33: 9D 81 C0 656 STA CTRL,X
|
||
CB36: 18 657 CLC ; no error
|
||
CB37: A9 00 658 LDA #0
|
||
659
|
||
CB39: 08 660 :DONE PHP
|
||
CB3A: 48 661 PHA
|
||
CB3B: BD 83 C0 662 LDA SS,X
|
||
CB3E: 09 01 663 ORA #SS0
|
||
CB40: 9D 83 C0 664 STA SS,X ; disable /CS
|
||
CB43: 68 665 PLA
|
||
CB44: 28 666 PLP
|
||
CB45: 60 667 RTS
|
||
668
|
||
CB46: 38 669 :ERROR SEC ; an error occured
|
||
CB47: A9 27 670 LDA #$27
|
||
CB49: 80 EE 671 BRA :DONE
|
||
672
|
||
673
|
||
674 ********************************
|
||
675 *
|
||
676 * Write 512 byte block
|
||
677 * $43 Unit number DSSS0000
|
||
678 * $44-45 Address (LO/HI) of buffer
|
||
679 * $46-47 Block number (LO/HI)
|
||
680 *
|
||
681 * C Clear - No error
|
||
682 * Set - Error
|
||
683 * A $00 - No error
|
||
684 * $27 - I/O error or bad block number
|
||
685 * $2B - Card write protected
|
||
686 *
|
||
687 ********************************
|
||
688
|
||
CB4B: 20 AE CA 689 WRITE JSR CARDDET
|
||
CB4E: B0 67 690 BCS :IOERROR ; no card inserted
|
||
691
|
||
CB50: 20 BA CA 692 JSR WRPROT
|
||
CB53: B0 67 693 BCS :WPERROR ; card write protected
|
||
694
|
||
CB55: 20 51 CA 695 JSR GETBLOCK ; calc block address
|
||
696
|
||
CB58: BD 83 C0 697 LDA SS,X ; enable /CS
|
||
CB5B: 29 FE 698 AND #$FF!SS0
|
||
CB5D: 9D 83 C0 699 STA SS,X
|
||
CB60: A9 58 700 LDA #$58 ; send CMD24
|
||
CB62: 20 86 CA 701 JSR COMMAND ; send command
|
||
702
|
||
CB65: C9 00 703 CMP #0 ; check for error
|
||
CB67: D0 4E 704 BNE :IOERROR
|
||
705
|
||
CB69: A9 FF 706 LDA #DUMMY
|
||
CB6B: 9D 80 C0 707 STA DATA,X ; send dummy
|
||
CB6E: A9 FE 708 LDA #$FE
|
||
CB70: 9D 80 C0 709 STA DATA,X ; send data token
|
||
710
|
||
CB73: A0 02 711 LDY #2 ; send data to card
|
||
CB75: 64 3C 712 :LOOPY STZ WORK
|
||
CB77: B2 44 713 :LOOPW LDA (BUFFER)
|
||
CB79: 9D 80 C0 714 STA DATA,X
|
||
CB7C: E6 44 715 INC BUFFER
|
||
CB7E: D0 02 716 BNE :INW
|
||
CB80: E6 45 717 INC BUFFER+1 ; inc msb on page boundary
|
||
CB82: E6 3C 718 :INW INC WORK
|
||
CB84: D0 F1 719 BNE :LOOPW
|
||
CB86: 88 720 DEY
|
||
CB87: D0 EC 721 BNE :LOOPY
|
||
722
|
||
CB89: 9D 80 C0 723 :CRC STA DATA,X ; send 2 dummy crc bytes
|
||
CB8C: 9D 80 C0 724 STA DATA,X
|
||
725
|
||
CB8F: 9D 80 C0 726 STA DATA,X ; get data response
|
||
CB92: BD 80 C0 727 LDA DATA,X
|
||
CB95: 29 1F 728 AND #$1F
|
||
CB97: C9 05 729 CMP #$05
|
||
CB99: D0 1C 730 BNE :IOERROR ; check for write error
|
||
CB9B: 18 731 CLC ; no error
|
||
CB9C: A9 00 732 LDA #0
|
||
733
|
||
CB9E: 08 734 :DONE PHP
|
||
CB9F: 48 735 PHA
|
||
CBA0: A9 FF 736 :WAIT LDA #DUMMY
|
||
CBA2: 9D 80 C0 737 STA DATA,X ; wait for write cycle
|
||
CBA5: BD 80 C0 738 LDA DATA,X ; to complete
|
||
CBA8: C9 00 739 CMP #$00
|
||
CBAA: F0 F4 740 BEQ :WAIT
|
||
741
|
||
CBAC: BD 83 C0 742 LDA SS,X ; disable /CS
|
||
CBAF: 09 01 743 ORA #SS0
|
||
CBB1: 9D 83 C0 744 STA SS,X
|
||
CBB4: 68 745 PLA
|
||
CBB5: 28 746 PLP
|
||
CBB6: 60 747 RTS
|
||
748
|
||
CBB7: 38 749 :IOERROR SEC ; an error occured
|
||
CBB8: A9 27 750 LDA #$27
|
||
CBBA: 80 E2 751 BRA :DONE
|
||
752
|
||
CBBC: 38 753 :WPERROR SEC
|
||
CBBD: A9 2B 754 LDA #$2B
|
||
CBBF: 80 DD 755 BRA :DONE
|
||
756
|
||
757
|
||
758
|
||
759 ********************************
|
||
760 *
|
||
761 * Format
|
||
762 * not supported!
|
||
763 *
|
||
764 ********************************
|
||
765
|
||
CBC1: 38 766 FORMAT SEC
|
||
CBC2: A9 01 767 LDA #$01 ; invalid command
|
||
CBC4: 60 768 RTS
|
||
769
|
||
770
|
||
771 ********************************
|
||
772 *
|
||
773 * Test routine
|
||
774 *
|
||
775 ********************************
|
||
776
|
||
777 DO DEBUG
|
||
778 TEST
|
||
779
|
||
780 * get buffer
|
||
781 LDA #2 ; get 512 byte buffer
|
||
782 JSR $BEF5 ; call GETBUFR
|
||
783 BCS :ERROR
|
||
784 STA BUFADD+1
|
||
785 STA BUFFER+1
|
||
786 STZ BUFADD
|
||
787 STZ BUFFER
|
||
788
|
||
789 * fill buffer
|
||
790 LDY #0
|
||
791 :LOOP TYA
|
||
792 STA (BUFFER),Y
|
||
793 INY
|
||
794 BNE :LOOP
|
||
795 INC BUFFER+1
|
||
796 :LOOP1 TYA
|
||
797 STA (BUFFER),Y
|
||
798 INY
|
||
799 BNE :LOOP1
|
||
800
|
||
801 * write to card
|
||
802 LDA #2 ; write cmd
|
||
803 STA DCMD
|
||
804 LDA BUFADD ; buffer address
|
||
805 STA BUFFER
|
||
806 LDA BUFADD+1
|
||
807 STA BUFFER+1
|
||
808 STZ BLOCK ; block number
|
||
809 STZ BLOCK+1
|
||
810 LDX SLOT16
|
||
811 JSR DRIVER
|
||
812 BCS :ERROR
|
||
813
|
||
814 * read from card
|
||
815 LDA #1 ; read cmd
|
||
816 STA DCMD
|
||
817 LDA BUFADD ; buffer address
|
||
818 STA BUFFER
|
||
819 LDA BUFADD+1
|
||
820 STA BUFFER+1
|
||
821 STZ BLOCK ; block number
|
||
822 STZ BLOCK+1
|
||
823 LDX SLOT16
|
||
824 JSR DRIVER
|
||
825 BCS :ERROR
|
||
826
|
||
827 * check for errors
|
||
828 LDA BUFADD ; buffer address
|
||
829 STA BUFFER
|
||
830 LDA BUFADD+1
|
||
831 STA BUFFER+1
|
||
832 LDY #0
|
||
833 :LOOP2 TYA
|
||
834 CMP (BUFFER),Y
|
||
835 BNE :ERRCMP ; error in buffer
|
||
836 INY
|
||
837 BNE :LOOP2
|
||
838 INC BUFFER+1
|
||
839 :LOOP3 TYA
|
||
840 CMP (BUFFER),Y
|
||
841 BNE :ERRCMP
|
||
842 INY
|
||
843 BNE :LOOP3
|
||
844
|
||
845 * free buffer
|
||
846 JSR $BEF8 ; call FREEBUFR
|
||
847 CLC
|
||
848 LDA #0
|
||
849 RTS
|
||
850
|
||
851 :ERROR BRK
|
||
852 :ERRCMP BRK
|
||
853
|
||
854 BUFADD DW 0
|
||
855 FIN
|
||
856
|
||
857
|
||
CBC5: 40 00 00 858 CMD0 HEX 400000
|
||
CBC8: 00 00 95 859 HEX 000095
|
||
CBCB: 41 00 00 860 CMD1 HEX 410000
|
||
CBCE: 00 00 F9 861 HEX 0000F9
|
||
CBD1: 48 00 00 862 CMD8 HEX 480000
|
||
CBD4: 01 AA 87 863 HEX 01AA87
|
||
CBD7: 50 00 00 864 CMD16 HEX 500000
|
||
CBDA: 02 00 FF 865 HEX 0200FF
|
||
CBDD: 77 00 00 866 CMD55 HEX 770000
|
||
CBE0: 00 00 65 867 HEX 000065
|
||
CBE3: 69 40 00 868 ACMD4140 HEX 694000
|
||
CBE6: 00 00 77 869 HEX 000077
|
||
CBE9: 69 00 00 870 ACMD410 HEX 690000
|
||
CBEC: 00 00 FF 871 HEX 0000FF
|
||
|
||
|
||
--End assembly, 1007 bytes, Errors: 0
|
||
|
||
|
||
Symbol table - alphabetical order:
|
||
|
||
ACMD410 =$CBE9 ACMD4140=$CBE3 BLOCK =$46 ? BOOT =$C82B
|
||
BUFFER =$44 CARDDET =$CAAE CD =$40 CMD =$C9F0
|
||
CMD0 =$CBC5 CMD1 =$CBCB CMD16 =$CBD7 CMD55 =$CBDD
|
||
CMD8 =$CBD1 CMDHI =$41 CMDLO =$40 COMMAND =$CA86
|
||
CTRL =$C081 CURSLOT =$07F8 DATA =$C080 DCMD =$42
|
||
DEBUG =$00 DIV =$C082 DRIVER =$C84B DUMMY =$FF
|
||
ECE =$04 FORMAT =$CBC1 FRX =$10 GETBLOCK=$CA51
|
||
GETR1 =$CA04 GETR3 =$CA1F INIT =$C900 INITED =$80
|
||
R30 =$0478 R31 =$04F8 R32 =$0578 R33 =$05F8
|
||
READ =$CADD SLOT =$3D SLOT16 =$2B SS =$C083
|
||
SS0 =$01 STATUS =$CAC6 WORK =$3C WP =$20
|
||
WRITE =$CB4B WRPROT =$CABA
|
||
|
||
|
||
Symbol table - numerical order:
|
||
|
||
DEBUG =$00 SS0 =$01 ECE =$04 FRX =$10
|
||
WP =$20 SLOT16 =$2B WORK =$3C SLOT =$3D
|
||
CMDLO =$40 CD =$40 CMDHI =$41 DCMD =$42
|
||
BUFFER =$44 BLOCK =$46 INITED =$80 DUMMY =$FF
|
||
R30 =$0478 R31 =$04F8 R32 =$0578 R33 =$05F8
|
||
CURSLOT =$07F8 DATA =$C080 C<><43><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ӭ؍؍<D88D><D88D><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> =$C083 ? BOOT =$C82B DRIVER =$C84B INIT =$C900
|
||
CMD =$C9F0 GETR1 =$CA04 GETR3 =$CA1F GETBLOCK=$CA51
|
||
<20> COMMAND =$CA86 CARDDET =$CAAE WRPROT =$CABA STA<54>US =$CAC6
|
||
READ =$CADD WRITE =$CB4B FORMAT =$CBC1 CMD0 =$CBC5
|
||
CMD1 =$CBCB CMD8 =$CBD1 CMD16 =$CBD7 CMD55 =$CBDD
|
||
ACMD4140=$CBE3 ACMD410 =$CBE9
|
||
|