forked from Apple-2-HW/AppleIISd
751 lines
33 KiB
Plaintext
751 lines
33 KiB
Plaintext
1 ********************************
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2 *
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3 * Apple][Sd Firmware
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4 * Version 0.5
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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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11-AUG-17 22:51
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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 CURSLOT = $07F8 ; $Cs
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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 SSNONE = $0F
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44 SS0 = $0E
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45 DUMMY = $FF
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46
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47
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48 ********************************
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49 *
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50 * Install SD card driver
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51 *
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52 ********************************
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53
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54 * signature bytes
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55
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C800: A2 20 56 LDX #$20
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C802: A0 00 57 LDY #$00
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C804: A2 03 58 LDX #$03
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C806: 86 3C 59 STX WORK
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===== Page 2 =====
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60
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61 * find slot nr
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62
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63 DO DEBUG
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64 LDA #$04
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65 STA SLOT
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66 LDA #$C4
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67 STA CURSLOT
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68 LDA #$40
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69 STA SLOT16
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70 ELSE
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C808: 20 58 FF 71 JSR $FF58
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C80B: BA 72 TSX
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C80C: BD 00 01 73 LDA $0100,X
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C80F: 29 0F 74 AND #$0F
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C811: 85 3D 75 STA SLOT ; $0s
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C813: 09 C0 76 ORA #$C0
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C815: 8D F8 07 77 STA CURSLOT ; $Cs
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C818: 0A 78 ASL A
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C819: 0A 79 ASL A
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C81A: 0A 80 ASL A
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C81B: 0A 81 ASL A
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C81C: 85 2B 82 STA SLOT16 ; $s0
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83 FIN
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C81E: AA 84 TAX ; X holds now SLOT16
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85
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C81F: 2C FF CF 86 BIT $CFFF
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C822: 20 00 C9 87 JSR INIT
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88
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89 *
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90 * TODO: check for init error
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91 *
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92
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93 * see if slot has a driver already
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94
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C825: AE 31 BF 95 LDX $BF31 ; get devcnt
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C828: BD 32 BF 96 INSLP LDA $BF32,X ; get a devnum
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C82B: 29 70 97 AND #$70 ; isolate slot
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C82D: C5 2B 98 CMP SLOT16 ; slot?
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C82F: F0 32 99 BEQ INSOUT ; yes, skip it
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C831: CA 100 DEX
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C832: 10 F4 101 BPL INSLP ; keep up the search
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102
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103 * restore the devnum to the list
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104
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C834: AE 31 BF 105 LDX $BF31 ; get devcnt again
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C837: E0 0D 106 CPX #$0D ; device table full?
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C839: D0 06 107 BNE INSLP2
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108
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C83B: 20 3A FF 109 JSR $FF3A ; bell
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C83E: 4C 63 C8 110 JMP INSOUT ; do something!
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111
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C841: BD 31 BF 112 INSLP2 LDA $BF32-1,X ; move all entries down
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C844: 9D 32 BF 113 STA $BF32,X ; to make room at front
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C847: CA 114 DEX ; for a new entry
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C848: D0 F7 115 BNE INSLP2
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C84A: A9 04 116 LDA #$04 ; ProFile type device
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===== Page 3 =====
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C84C: 05 2B 117 ORA SLOT16
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C84E: 8D 32 BF 118 STA $BF32 ; slot, drive 1 at top of list
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C851: EE 31 BF 119 INC $BF31 ; update devcnt
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120
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121 * now insert the device driver vector
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122
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C854: A5 3D 123 LDA SLOT
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C856: 0A 124 ASL
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C857: AA 125 TAX
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C858: A9 64 126 LDA #<DRIVER
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C85A: 9D 10 BF 127 STA $BF10,X ; write to driver table
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128 DO DEBUG
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129 LDA #>DRIVER
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130 ELSE
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C85D: AD F8 07 131 LDA CURSLOT
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132 FIN
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C860: 9D 11 BF 133 STA $BF11,X
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134
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C863: 60 135 INSOUT RTS
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136
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137
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138 ********************************
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139 *
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140 * Jump table
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141 *
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142 ********************************
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143
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C864: D8 144 DRIVER CLD
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145 DO DEBUG
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146 LDA #$04
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147 STA SLOT
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148 LDA #$C4
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149 STA CURSLOT
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150 LDA #$40
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151 STA SLOT16
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152 ELSE
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C865: 20 58 FF 153 JSR $FF58 ; find slot nr
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C868: BA 154 TSX
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C869: BD 00 01 155 LDA $0100,X
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C86C: 29 0F 156 AND #$0F
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C86E: 85 3D 157 STA SLOT ; $0s
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C870: 09 C0 158 ORA #$C0
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C872: 8D F8 07 159 STA CURSLOT ; $Cs
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C875: 0A 160 ASL A
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C876: 0A 161 ASL A
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C877: 0A 162 ASL A
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C878: 0A 163 ASL A
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C879: 85 2B 164 STA SLOT16 ; $s0
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165 FIN
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C87B: AA 166 TAX ; X holds now SLOT16
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167
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C87C: 2C FF CF 168 BIT $CFFF
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C87F: A5 42 169 LDA $42 ; get command
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C881: C9 00 170 CMP #$00
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C883: F0 10 171 BEQ :STATUS
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C885: C9 01 172 CMP #$01
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C887: F0 0F 173 BEQ :READ
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===== Page 4 =====
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C889: C9 02 174 CMP #$02
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C88B: F0 0E 175 BEQ :WRITE
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C88D: C9 03 176 CMP #$03
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C88F: F0 0D 177 BEQ :FORMAT
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C891: 38 178 SEC ; unknown command
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C892: A9 01 179 LDA #$01
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C894: 60 180 RTS
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181
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C895: 4C A8 CA 182 :STATUS JMP STATUS
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C898: 4C B0 CA 183 :READ JMP READ
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C89B: 4C FA CA 184 :WRITE JMP WRITE
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C89E: 4C 8A CB 185 :FORMAT JMP FORMAT
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186
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187 * Signature bytes
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188
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C8A1: 00 00 00 189 DS \ ; fill with zeroes
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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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190 DS -4 ; locate to $C8FC
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C8FC: FF FF 191 DW $FFFF ; 65535 blocks
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C8FE: 47 192 DB $47 ; Status bits
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C8FF: 64 193 DB #<DRIVER ; LSB of driver
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194
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195
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196 ********************************
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197 *
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198 * Initialize SD card
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199 *
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200 * C Clear - No error
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201 * Set - Error
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202 * A $00 - No error
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203 * $27 - I/O error - Init failed
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204 * $28 - No card inserted
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205 *
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206 ********************************
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207
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===== Page 5 =====
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C900: D8 208 INIT CLD
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C901: A9 03 209 LDA #$03 ; set SPI mode 3
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C903: 9D 81 C0 210 STA CTRL,X
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C906: A9 0F 211 LDA #SSNONE
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C908: 9D 83 C0 212 STA SS,X
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C90B: A9 07 213 LDA #7
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C90D: 9D 82 C0 214 STA DIV,X
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C910: A0 0A 215 LDY #10
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C912: A9 FF 216 LDA #DUMMY
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217
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C914: 9D 80 C0 218 :LOOP STA DATA,X
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C917: 3C 81 C0 219 :WAIT BIT CTRL,X
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C91A: 10 FB 220 BPL :WAIT
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C91C: 88 221 DEY
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C91D: D0 F5 222 BNE :LOOP ; do 10 times
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C91F: A9 0E 223 LDA #SS0 ; set CS low
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C921: 9D 83 C0 224 STA SS,X
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225
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C924: A9 8E 226 LDA #<CMD0 ; send CMD0
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C926: 85 40 227 STA CMDLO
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C928: A9 CB 228 LDA #>CMD0
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C92A: 85 41 229 STA CMDHI
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C92C: 20 D7 C9 230 JSR CMD
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C92F: 20 EB C9 231 JSR GETR1 ; get response
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C932: C9 01 232 CMP #$01
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C934: D0 39 233 BNE :ERROR1 ; error!
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234
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C936: A9 9A 235 LDA #<CMD8 ; send CMD8
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C938: 85 40 236 STA CMDLO
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C93A: A9 CB 237 LDA #>CMD8
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C93C: 85 41 238 STA CMDHI
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C93E: 20 D7 C9 239 JSR CMD
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C941: 20 06 CA 240 JSR GETR3
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C944: C9 01 241 CMP #$01
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C946: D0 2A 242 BNE :SDV1 ; may be SD Ver. 1
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243
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244 * check for $01aa match!
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C948: A9 A6 245 :SDV2 LDA #<CMD55
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C94A: 85 40 246 STA CMDLO
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C94C: A9 CB 247 LDA #>CMD55
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C94E: 85 41 248 STA CMDHI
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C950: 20 D7 C9 249 JSR CMD
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C953: 20 EB C9 250 JSR GETR1
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C956: A9 AC 251 LDA #<ACMD4140
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C958: 85 40 252 STA CMDLO
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C95A: A9 CB 253 LDA #>ACMD4140
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C95C: 85 41 254 STA CMDHI
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C95E: 20 D7 C9 255 JSR CMD
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C961: 20 EB C9 256 JSR GETR1
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C964: C9 01 257 CMP #$01
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C966: F0 E0 258 BEQ :SDV2 ; wait for ready
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C968: C9 00 259 CMP #$00
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C96A: D0 03 260 BNE :ERROR1 ; error!
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261 * send CMD58
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262 * SD Ver. 2 initialized!
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C96C: 4C AC C9 263 JMP :BLOCKSZ
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264
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===== Page 6 =====
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C96F: 4C C8 C9 265 :ERROR1 JMP :IOERROR ; needed for far jump
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266
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C972: A9 A6 267 :SDV1 LDA #<CMD55
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C974: 85 40 268 STA CMDLO
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C976: A9 CB 269 LDA #>CMD55
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C978: 85 41 270 STA CMDHI
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C97A: 20 D7 C9 271 JSR CMD ; ignore response
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C97D: A9 B2 272 LDA #<ACMD410
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C97F: 85 40 273 STA CMDLO
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C981: A9 CB 274 LDA #>ACMD410
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C983: 85 41 275 STA CMDHI
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C985: 20 D7 C9 276 JSR CMD
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C988: 20 EB C9 277 JSR GETR1
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C98B: C9 01 278 CMP #$01
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C98D: F0 E3 279 BEQ :SDV1 ; wait for ready
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C98F: C9 00 280 CMP #$00
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C991: D0 03 281 BNE :MMC ; may be MMC card
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282 * SD Ver. 1 initialized!
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C993: 4C AC C9 283 JMP :BLOCKSZ
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284
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C996: A9 94 285 :MMC LDA #<CMD1
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C998: 85 40 286 STA CMDLO
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C99A: A9 CB 287 LDA #>CMD1
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C99C: 85 41 288 STA CMDHI
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C99E: 20 D7 C9 289 :LOOP1 JSR CMD
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C9A1: 20 EB C9 290 JSR GETR1
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C9A4: C9 01 291 CMP #$01
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C9A6: F0 F6 292 BEQ :LOOP1 ; wait for ready
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C9A8: C9 00 293 CMP #$00
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C9AA: D0 1C 294 BNE :IOERROR ; error!
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295 * MMC Ver. 3 initialized!
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296
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C9AC: A9 A0 297 :BLOCKSZ LDA #<CMD16
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C9AE: 85 40 298 STA CMDLO
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C9B0: A9 CB 299 LDA #>CMD16
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C9B2: 85 41 300 STA CMDHI
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C9B4: 20 D7 C9 301 JSR CMD
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C9B7: 20 EB C9 302 JSR GETR1
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C9BA: C9 00 303 CMP #$00
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C9BC: D0 0A 304 BNE :IOERROR ; error!
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305
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C9BE: 18 306 :END CLC ; all ok
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C9BF: A0 00 307 LDY #0
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C9C1: 90 08 308 BCC :END1
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C9C3: 38 309 :CDERROR SEC
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C9C4: A0 28 310 LDY #$28 ; no card error
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C9C6: B0 03 311 BCS :END1
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C9C8: 38 312 :IOERROR SEC
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C9C9: A0 27 313 LDY #$27 ; init error
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C9CB: A9 0F 314 :END1 LDA #SSNONE ; deselect card
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C9CD: 9D 83 C0 315 STA SS,X
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C9D0: A9 00 316 LDA #0 ; set div to 2
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C9D2: 9D 82 C0 317 STA DIV,X
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C9D5: 98 318 TYA ; retval in A
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C9D6: 60 319 RTS
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320
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321
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===== Page 7 =====
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322 ********************************
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323 *
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324 * Send SD command
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325 * Call with command in CMDHI and CMDLO
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326 *
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327 ********************************
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328
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C9D7: 5A 329 CMD PHY
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C9D8: A0 00 330 LDY #0
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C9DA: B1 40 331 :LOOP LDA (CMDLO),Y
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C9DC: 9D 80 C0 332 STA DATA,X
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C9DF: 3C 81 C0 333 :WAIT BIT CTRL,X ; TC is in N
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C9E2: 10 FB 334 BPL :WAIT
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C9E4: C8 335 INY
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C9E5: C0 06 336 CPY #6
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C9E7: 90 F1 337 BCC :LOOP
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C9E9: 7A 338 PLY
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C9EA: 60 339 RTS
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340
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341
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342 ********************************
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343 *
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344 * Get R1
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345 * R1 is in A
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346 *
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347 ********************************
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348
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C9EB: A9 FF 349 GETR1 LDA #DUMMY
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C9ED: 9D 80 C0 350 STA DATA,X
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C9F0: 3C 81 C0 351 :WAIT BIT CTRL,X
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C9F3: 10 FB 352 BPL :WAIT
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C9F5: BD 80 C0 353 LDA DATA,X ; get response
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C9F8: 85 3C 354 STA WORK ; save R1
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C9FA: 29 80 355 AND #$80
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C9FC: D0 ED 356 BNE GETR1 ; wait for MSB=0
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C9FE: A9 FF 357 LDA #DUMMY
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CA00: 9D 80 C0 358 STA DATA,X ; send another dummy
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CA03: A5 3C 359 LDA WORK ; restore R1
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CA05: 60 360 RTS
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361
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362
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363 ********************************
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364 *
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365 * Get R3
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366 * R1 is in A
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367 * R3 is in scratchpad ram
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368 *
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369 ********************************
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370
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CA06: 20 EB C9 371 GETR3 JSR GETR1 ; get R1 first
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CA09: 48 372 PHA ; save R1
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CA0A: 5A 373 PHY ; save Y
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CA0B: A0 04 374 LDY #04 ; load counter
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CA0D: A9 FF 375 :LOOP LDA #DUMMY ; send dummy
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CA0F: 9D 80 C0 376 STA DATA,X
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CA12: 3C 81 C0 377 :WAIT BIT CTRL,X
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CA15: 10 FB 378 BPL :WAIT
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===== Page 8 =====
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CA17: BD 80 C0 379 LDA DATA,X
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CA1A: 48 380 PHA
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CA1B: 88 381 DEY
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CA1C: D0 EF 382 BNE :LOOP ; do 4 times
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CA1E: A4 3D 383 LDY SLOT
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CA20: 68 384 PLA
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CA21: 99 F8 05 385 STA R33,Y ; save R3
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CA24: 68 386 PLA
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CA25: 99 78 05 387 STA R32,Y
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CA28: 68 388 PLA
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CA29: 99 F8 04 389 STA R31,Y
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CA2C: 68 390 PLA
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CA2D: 99 78 04 391 STA R30,Y
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CA30: 7A 392 PLY ; restore Y
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CA31: A9 FF 393 LDA #DUMMY
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CA33: 9D 80 C0 394 STA DATA,X ; send another dummy
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CA36: 68 395 PLA ; restore R1
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CA37: 60 396 RTS
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397
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398
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399 ********************************
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400 *
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401 * Calculate block address
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402 * Block no is in $46-47
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403 * Address is in R30-R33
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404 *
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405 ********************************
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406
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CA38: DA 407 BLOCK PHX ; save X
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CA39: 5A 408 PHY ; save Y
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CA3A: A6 3D 409 LDX SLOT
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CA3C: A5 46 410 LDA $46 ; store block num
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CA3E: 9D F8 05 411 STA R33,X ; in R30-R33
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CA41: A5 47 412 LDA $47
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CA43: 9D 78 05 413 STA R32,X
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CA46: A9 00 414 LDA #0
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CA48: 9D F8 04 415 STA R31,X
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CA4B: 9D 78 04 416 STA R30,X
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417
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CA4E: A0 09 418 LDY #9 ; ASL can't be used with Y
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CA50: 1E F8 05 419 :LOOP ASL R33,X ; mul block num
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CA53: 3E 78 05 420 ROL R32,X ; by 512 to get
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CA56: 3E F8 04 421 ROL R31,X ; real address
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CA59: 3E 78 04 422 ROL R30,X
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CA5C: 88 423 DEY
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CA5D: D0 F1 424 BNE :LOOP
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CA5F: 7A 425 PLY ; restore Y
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CA60: FA 426 PLX ; restore X
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CA61: 60 427 RTS
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428
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429
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430 ********************************
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||
431 *
|
||
432 * Send SD command
|
||
433 * Cmd is in A
|
||
434 *
|
||
435 ********************************
|
||
===== Page 9 =====
|
||
|
||
436
|
||
CA62: 5A 437 COMMAND PHY ; save Y
|
||
CA63: A4 3D 438 LDY SLOT
|
||
CA65: 9D 80 C0 439 STA DATA,X ; send command
|
||
CA68: 3C 81 C0 440 :WAIT BIT CTRL,X
|
||
CA6B: 10 FB 441 BPL :WAIT
|
||
CA6D: B9 78 04 442 :ARG LDA R30,Y ; get arg from R30 on
|
||
CA70: 9D 80 C0 443 STA DATA,X
|
||
CA73: 3C 81 C0 444 :WAIT1 BIT CTRL,X
|
||
CA76: 10 FB 445 BPL :WAIT1
|
||
CA78: B9 F8 04 446 LDA R31,Y
|
||
CA7B: 9D 80 C0 447 STA DATA,X
|
||
CA7E: 3C 81 C0 448 :WAIT11 BIT CTRL,X
|
||
CA81: 10 FB 449 BPL :WAIT11
|
||
CA83: B9 78 05 450 LDA R32,Y
|
||
CA86: 9D 80 C0 451 STA DATA,X
|
||
CA89: 3C 81 C0 452 :WAIT12 BIT CTRL,X
|
||
CA8C: 10 FB 453 BPL :WAIT12
|
||
CA8E: B9 F8 05 454 LDA R33,Y
|
||
CA91: 9D 80 C0 455 STA DATA,X
|
||
CA94: 3C 81 C0 456 :WAIT13 BIT CTRL,X
|
||
CA97: 10 FB 457 BPL :WAIT13
|
||
CA99: A9 FF 458 LDA #DUMMY
|
||
CA9B: 9D 80 C0 459 STA DATA,X ; dummy crc
|
||
CA9E: 3C 81 C0 460 :WAIT2 BIT CTRL,X
|
||
CAA1: 10 FB 461 BPL :WAIT2
|
||
CAA3: 20 EB C9 462 JSR GETR1
|
||
CAA6: 7A 463 PLY ; restore Y
|
||
CAA7: 60 464 RTS
|
||
465
|
||
466
|
||
467 ********************************
|
||
468 *
|
||
469 * Status request
|
||
470 * $43 Unit number DSSS000
|
||
471 * $44-45 Unused
|
||
472 * $46-47 Unused
|
||
473 *
|
||
474 * C Clear - No error
|
||
475 * Set - Error
|
||
476 * A $00 - No error
|
||
477 * $27 - I/O error
|
||
478 * $28 - No card inserted / no init
|
||
479 * $2B - Card write protected
|
||
480 * x - Blocks avail (low byte)
|
||
481 * y - Blocks avail (high byte)
|
||
482 *
|
||
483 ********************************
|
||
484
|
||
CAA8: 18 485 STATUS CLC ; no error
|
||
CAA9: A9 00 486 LDA #0
|
||
CAAB: A2 FF 487 LDX #$FF ; 32 MB partition
|
||
CAAD: A0 FF 488 LDY #$FF
|
||
CAAF: 60 489 RTS
|
||
490
|
||
491 * TODO: check for card detect and write protect!
|
||
492
|
||
===== Page 10 =====
|
||
|
||
493
|
||
494 ********************************
|
||
495 *
|
||
496 * Read 512 byte block
|
||
497 * $43 Unit number DSSS0000
|
||
498 * $44-45 Address (LO/HI) of buffer
|
||
499 * $46-47 Block number (LO/HI)
|
||
500 *
|
||
501 * C Clear - No error
|
||
502 * Set - Error
|
||
503 * A $00 - No error
|
||
504 * $27 - Bad block number
|
||
505 * $28 - No card inserted
|
||
506 *
|
||
507 ********************************
|
||
508
|
||
509 * TODO: check for card detect!
|
||
510
|
||
CAB0: 20 38 CA 511 READ JSR BLOCK ; calc block address
|
||
512
|
||
CAB3: A9 0E 513 LDA #SS0 ; enable /CS
|
||
CAB5: 9D 83 C0 514 STA SS,X
|
||
CAB8: A9 51 515 LDA #$51 ; send CMD17
|
||
CABA: 20 62 CA 516 JSR COMMAND ; send command
|
||
517
|
||
CABD: A9 FF 518 :GETTOK LDA #DUMMY ; get data token
|
||
CABF: 9D 80 C0 519 STA DATA,X
|
||
CAC2: 3C 81 C0 520 :WAIT BIT CTRL,X
|
||
CAC5: 10 FB 521 BPL :WAIT
|
||
CAC7: BD 80 C0 522 LDA DATA,X ; get response
|
||
523 *
|
||
524 * TODO: check for error!
|
||
525 *
|
||
CACA: C9 FE 526 CMP #$FE
|
||
CACC: D0 EF 527 BNE :GETTOK ; wait for $FE
|
||
528
|
||
CACE: A0 02 529 LDY #2 ; read data from card
|
||
CAD0: 64 3C 530 :LOOPY STZ WORK
|
||
CAD2: A9 FF 531 :LOOPW LDA #DUMMY
|
||
CAD4: 9D 80 C0 532 STA DATA,X
|
||
CAD7: 3C 81 C0 533 :WAIT1 BIT CTRL,X
|
||
CADA: 10 FB 534 BPL :WAIT1
|
||
CADC: BD 80 C0 535 LDA DATA,X
|
||
CADF: 92 44 536 STA ($44)
|
||
CAE1: E6 44 537 INC $44
|
||
CAE3: D0 02 538 BNE :INW
|
||
CAE5: E6 45 539 INC $45 ; inc msb on page boundary
|
||
CAE7: E6 3C 540 :INW INC WORK
|
||
CAE9: D0 E7 541 BNE :LOOPW
|
||
CAEB: 88 542 DEY
|
||
CAEC: D0 E2 543 BNE :LOOPY
|
||
544
|
||
CAEE: 20 06 CA 545 JSR GETR3 ; read 2 bytes crc
|
||
CAF1: A9 0F 546 LDA #SSNONE
|
||
CAF3: 9D 83 C0 547 STA SS,X ; disable /CS
|
||
CAF6: 18 548 CLC ; no error
|
||
CAF7: A9 00 549 LDA #$00
|
||
===== Page 11 =====
|
||
|
||
CAF9: 60 550 RTS
|
||
551
|
||
552
|
||
553 ********************************
|
||
554 *
|
||
555 * Write 512 byte block
|
||
556 * $43 Unit number DSSS000
|
||
557 * $44-45 Address (LO/HI) of buffer
|
||
558 * $46-47 Block number (LO/HI)
|
||
559 *
|
||
560 * C Clear - No error
|
||
561 * Set - Error
|
||
562 * A $00 - No error
|
||
563 * $27 - I/O error or bad block number
|
||
564 * $28 - No card inserted
|
||
565 * $2B - Card write protected
|
||
566 *
|
||
567 ********************************
|
||
568
|
||
569 * TODO: check for card detect and write protect!
|
||
570
|
||
CAFA: 20 38 CA 571 WRITE JSR BLOCK ; calc block address
|
||
572
|
||
CAFD: A9 0E 573 LDA #SS0 ; enable /CS
|
||
CAFF: 9D 83 C0 574 STA SS,X
|
||
CB02: A9 58 575 LDA #$58 ; send CMD24
|
||
CB04: 20 62 CA 576 JSR COMMAND ; send command
|
||
577
|
||
CB07: A9 FF 578 LDA #DUMMY
|
||
CB09: 9D 80 C0 579 STA DATA,X ; send dummy
|
||
CB0C: 3C 81 C0 580 :WAIT1 BIT CTRL,X
|
||
CB0F: 10 FB 581 BPL :WAIT1
|
||
CB11: A9 FE 582 LDA #$FE
|
||
CB13: 9D 80 C0 583 STA DATA,X ; send data token
|
||
CB16: 3C 81 C0 584 :WAIT2 BIT CTRL,X
|
||
CB19: 10 FB 585 BPL :WAIT2
|
||
586
|
||
CB1B: A0 02 587 LDY #2 ; send data to card
|
||
CB1D: 64 3C 588 :LOOPY STZ WORK
|
||
CB1F: B2 44 589 :LOOPW LDA ($44)
|
||
CB21: 9D 80 C0 590 STA DATA,X
|
||
CB24: 3C 81 C0 591 :WAIT3 BIT CTRL,X
|
||
CB27: 10 FB 592 BPL :WAIT3
|
||
CB29: E6 44 593 INC $44
|
||
CB2B: D0 02 594 BNE :INW
|
||
CB2D: E6 45 595 INC $45 ; inc msb on page boundary
|
||
CB2F: E6 3C 596 :INW INC WORK
|
||
CB31: D0 EC 597 BNE :LOOPW
|
||
CB33: 88 598 DEY
|
||
CB34: D0 E7 599 BNE :LOOPY
|
||
600
|
||
CB36: A0 02 601 LDY #2 ; send 2 dummy crc bytes
|
||
CB38: 9D 80 C0 602 :CRC STA DATA,X
|
||
CB3B: 3C 81 C0 603 :WAIT4 BIT CTRL,X
|
||
CB3E: 10 FB 604 BPL :WAIT4
|
||
CB40: 88 605 DEY
|
||
CB41: D0 F5 606 BNE :CRC
|
||
===== Page 12 =====
|
||
|
||
607
|
||
CB43: A9 FF 608 LDA #DUMMY ; get data response
|
||
CB45: 9D 80 C0 609 STA DATA,X
|
||
CB48: 3C 81 C0 610 :WAIT5 BIT CTRL,X
|
||
CB4B: 10 FB 611 BPL :WAIT5
|
||
CB4D: BD 80 C0 612 LDA DATA,X
|
||
CB50: 29 1F 613 AND #$1F
|
||
CB52: C9 05 614 CMP #$05
|
||
CB54: D0 1A 615 BNE :ERROR ; check for write error
|
||
616
|
||
CB56: A9 FF 617 :WAIT6 LDA #DUMMY ; wait for write cycle
|
||
CB58: 9D 80 C0 618 STA DATA,X ; to complete
|
||
CB5B: 3C 81 C0 619 :WAIT61 BIT CTRL,X
|
||
CB5E: 10 FB 620 BPL :WAIT61
|
||
CB60: BD 80 C0 621 LDA DATA,X
|
||
CB63: C9 00 622 CMP #$00
|
||
CB65: F0 EF 623 BEQ :WAIT6
|
||
624
|
||
CB67: A9 0F 625 LDA #SSNONE ; disable /CS
|
||
CB69: 9D 83 C0 626 STA SS,X
|
||
CB6C: 18 627 CLC ; no error
|
||
CB6D: A9 00 628 LDA #0
|
||
CB6F: 60 629 RTS
|
||
630
|
||
631 :ERROR
|
||
CB70: A9 FF 632 :WAIT7 LDA #DUMMY ; wait for write cycle
|
||
CB72: 9D 80 C0 633 STA DATA,X ; to complete
|
||
CB75: 3C 81 C0 634 :WAIT71 BIT CTRL,X
|
||
CB78: 10 FB 635 BPL :WAIT71
|
||
CB7A: BD 80 C0 636 LDA DATA,X
|
||
CB7D: C9 00 637 CMP #$00
|
||
CB7F: F0 EF 638 BEQ :WAIT7
|
||
CB81: A9 0F 639 LDA #SSNONE
|
||
CB83: 9D 83 C0 640 STA SS,X ; disable /CS
|
||
CB86: 38 641 SEC ; an error occured
|
||
CB87: A9 27 642 LDA #$27
|
||
CB89: 60 643 RTS
|
||
644
|
||
645
|
||
646 ********************************
|
||
647 *
|
||
648 * Format
|
||
649 * not supported!
|
||
650 *
|
||
651 ********************************
|
||
652
|
||
CB8A: 38 653 FORMAT SEC
|
||
CB8B: A9 01 654 LDA #$01 ; invalid command
|
||
CB8D: 60 655 RTS
|
||
656
|
||
657
|
||
CB8E: 40 00 00 658 CMD0 HEX 400000
|
||
CB91: 00 00 95 659 HEX 000095
|
||
CB94: 41 00 00 660 CMD1 HEX 410000
|
||
CB97: 00 00 F9 661 HEX 0000F9
|
||
CB9A: 48 00 00 662 CMD8 HEX 480000
|
||
CB9D: 01 AA 87 663 HEX 01AA87
|
||
===== Page 13 =====
|
||
|
||
CBA0: 50 00 00 664 CMD16 HEX 500000
|
||
CBA3: 02 00 FF 665 HEX 0200FF
|
||
CBA6: 77 00 00 666 CMD55 HEX 770000
|
||
CBA9: 00 00 65 667 HEX 000065
|
||
CBAC: 69 40 00 668 ACMD4140 HEX 694000
|
||
CBAF: 00 00 77 669 HEX 000077
|
||
CBB2: 69 00 00 670 ACMD410 HEX 690000
|
||
CBB5: 00 00 FF 671 HEX 0000FF
|
||
|
||
|
||
--End assembly, 952 bytes, Errors: 0
|
||
|
||
|
||
Symbol table - alphabetical order:
|
||
|
||
ACMD410 =$CBB2 ACMD4140=$CBAC BLOCK =$CA38 CMD =$C9D7
|
||
CMD0 =$CB8E CMD1 =$CB94 CMD16 =$CBA0 CMD55 =$CBA6
|
||
CMD8 =$CB9A CMDHI =$41 CMDLO =$40 COMMAND =$CA62
|
||
CTRL =$C081 CURSLOT =$07F8 DATA =$C080 DEBUG =$00
|
||
DIV =$C082 DRIVER =$C864 DUMMY =$FF FORMAT =$CB8A
|
||
GETR1 =$C9EB GETR3 =$CA06 INIT =$C900 INSLP =$C828
|
||
INSLP2 =$C841 INSOUT =$C863 R30 =$0478 R31 =$04F8
|
||
R32 =$0578 R33 =$05F8 READ =$CAB0 SLOT =$3D
|
||
SLOT16 =$2B SS =$C083 SS0 =$0E SSNONE =$0F
|
||
STATUS =$CAA8 WORK =$3C WRITE =$CAFA
|
||
|
||
|
||
Symbol table - numerical order:
|
||
|
||
DEBUG =$00 SS0 =$0E SSNONE =$0F SLOT16 =$2B
|
||
WORK =$3C SLOT =$3D CMDLO =$40 CMDHI =$41
|
||
DUMMY =$FF R30 =$0478 R31 =$04F8 R32 =$0578
|
||
R33 =$05F8 CURSLOT =$07F8 DATA =$C080 CTRL =$C081
|
||
DIV =$C082 SS =$C083 INSLP =$C828 INSLP2 =$C841
|
||
INSOUT =$C863 DRIVER =$C864 INIT =$C900 CMD =$C9D7
|
||
GETR1 =$C9EB GETR3 =$CA06 BLOCK =$CA38 COMMAND =$CA62
|
||
STATUS =$CAA8 READ =$CAB0 WRITE =$CAFA FORMAT =$CB8A
|
||
CMD0 =$CB8E CMD1 =$CB94 CMD8 =$CB9A CMD16 =$CBA0
|
||
CMD55 =$CBA6 ACMD4140=$CBAC ACMD410 =$CBB2
|
||
|