538 lines
29 KiB
Text
538 lines
29 KiB
Text
1 ; BOOT LOADER CODE
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2 ;
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3 ; REBASE HIGHER LINK/BOT:140000
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4 ; WANT PERFORMANCE COUNTER - CLOCK TICKS TO DO SOMETHING?
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5
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6 177776 PSW = 177776
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7 177564 DL11XCSR = 177564
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8 000064 DL11VEC = 64
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9
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10 177546 KW11LKS = 177546
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11 000100 KW11VEC = 100
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12
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13 .ASECT
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14 140000 .=140000
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15 140000 000005 START: RESET ; 140000
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16 140002 005037 177776 CLR @#PSW
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17 140006 012706 140000 MOV #START,SP
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18 140012 005037 177564 CLR @#DL11XCSR ; CLEAR THE XCSR
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19 140016 012700 141121 MOV #BANNER,R0
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20 140022 004767 140150' JSR PC,PRINT
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21 140026 012737 140124 000100 MOV #CLKAST,@#KW11VEC
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22 140034 012737 000340 000102 MOV #340,@#KW11VEC+2
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23 140042 052737 000100 177546 BIS #100,@#KW11LKS ; SET CLOCK TICKING
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24
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25 140050 012700 141173 MOV #PROMPT,R0
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26 140054 004767 140150' JSR PC,PRINT
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27 140060 162706 000256 SUB #256,SP
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28 140064 010600 MOV SP,R0
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29 140066 004767 140244' JSR PC,INPUT
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30 140072 005000 CLR R0
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31 140074 000001 1$: WAIT
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32 140076 005200 INC R0
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33 140100 005767 140120' TST LGHTON
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34 140104 001773 BEQ 1$
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35 140106 012746 054000 MOV #054000,-(SP) ; SUPER PRIORITY 0 ALT REG
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36 140112 016746 140120' MOV LGHTON,-(SP) ; CALL SUPER LOOP START
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37 140116 000002 RTI
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38
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39 140120 000000 LGHTON: .WORD 0
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40 140122 000000 CLKTIC: .WORD 0
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41
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42 CLKAST: ; 140124
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43 140124 005267 140122' INC CLKTIC
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44 140130 000002 RTI
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45
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46 ONECHR:
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47 140132 105737 177564 TSTB @#DL11XCSR ; 140132
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48 140136 100375 BPL ONECHR
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49 140140 110037 177566 MOVB R0,@#177566
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50 140144 000207 RTS PC
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51
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52 140146 000000 PRTPTR: .WORD 0 ; 140146
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53
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54 PRINT: ; 140150
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55 140150 132737 000100 177564 BITB #100,@#DL11XCSR
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56 140156 001374 BNE PRINT
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57 140160 010067 140146' MOV R0,PRTPTR
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58 140164 012737 140210 000064 MOV #PRTAST,@#DL11VEC
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59 140172 012737 000200 000066 MOV #200,@#DL11VEC+2
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60 140200 152737 000100 177564 BISB #100,@#DL11XCSR
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61 140206 000207 RTS PC
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62
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63 PRTAST: ; 140210
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64 140210 105777 140146' TSTB @PRTPTR
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65 140214 001406 BEQ 2$
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66 140216 117737 140146' 177566 MOVB @PRTPTR,@#177566
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67 140224 005267 140146' INC PRTPTR
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68 140230 000002 RTI
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69 140232 105037 177564 2$: CLRB @#177564
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70 140236 000002 RTI
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71
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72 140240 000000 BUFFER: .WORD 0 ; INPUT BUFFER POINTER
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73 140242 000000 LENGTH: .WORD 0 ; INPUT BUFFER LENGTH
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74
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75 INPUT:
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76 140244 010067 140240' MOV R0,BUFFER ; 140244
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77 140250 005067 140242' CLR LENGTH
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78 140254 012737 140300 000060 MOV #INPAST,@#60
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79 140262 012737 000200 000062 MOV #200,@#62
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80 140270 152737 000100 177560 BISB #100,@#177560
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81 140276 000207 RTS PC
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82
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83 INPAST: ; 140300
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84 140300 010046 MOV R0,-(SP)
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85 140302 113700 177562 MOVB @#177562,R0
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86 140306 120027 000015 CMPB R0,#15
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87 140312 001455 BEQ 7$ ; CARRIAGE RETURN
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88 140314 120027 000177 CMPB R0,#127.
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89 140320 001403 BEQ 2$ ; <DEL>
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90 140322 120027 000010 CMPB R0,#10
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91 140326 001012 BNE 4$ ; BACK SPACE
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92 140330 005767 140242' 2$: TST LENGTH ; DATA IN BUFFER?
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93 140334 001406 BEQ 3$
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94 140336 005367 140242' DEC LENGTH ; LENGTH
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95 140342 012700 141037 MOV #DEL,R0
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96 140346 004767 140150' JSR PC,PRINT
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97 140352 000453 3$: BR 9$
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98 140354 120027 000040 4$: CMPB R0,#40
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99 140360 002450 BLT 9$ ; BELOW SPACE
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100 140362 120027 000177 CMPB R0,#177
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101 140366 002045 BGE 9$ ; SKIP STUFF TOO BIG
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102 140370 004767 140132' JSR PC,ONECHR ; ECHO CHAR
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103 140374 120027 000172 CMPB R0,#172
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104 140400 003005 BGT 5$ ; ABOVE Z
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105 140402 120027 000141 CMPB R0,#141
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106 140406 002402 BLT 5$ ; BELOW A
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107 140410 142700 000040 BICB #40,R0 ; CONVERT TO UPPER CASE
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108 140414 026727 140242' 000254 5$: CMP LENGTH,#254
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109 140422 002027 BGE 9$
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110 140424 110046 MOVB R0,-(SP)
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111 140426 016700 140240' MOV BUFFER,R0
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112 140432 066700 140242' ADD LENGTH,R0
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113 140436 112610 MOVB (SP)+,(R0)
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114 140440 005267 140242' INC LENGTH
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115 140444 000416 BR 9$
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116
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117 140446 016700 140240' 7$: MOV BUFFER,R0
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118 140452 066700 140242' ADD LENGTH,R0
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119 140456 105010 CLRB (R0)
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120 140460 012737 140506 000240 MOV #CMD,@#240 ; CALL CMD AT PRIORITY 2
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121 140466 012737 000100 000242 MOV #100,@#242
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122 140474 012737 002000 177772 MOV #2000,@#177772
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123 140502 012600 9$: MOV (SP)+,R0
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124 140504 000002 RTI
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125
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126 CMD: ; 140506
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127 140506 005037 177772 CLR @#177772 ; NO MORE PIR CALLS
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128 140512 010046 MOV R0,-(SP)
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129 140514 010146 MOV R1,-(SP)
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130 140516 010246 MOV R2,-(SP)
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131 140520 010346 MOV R3,-(SP)
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132 140522 010446 MOV R4,-(SP)
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133 140524 012700 141034 MOV #EOL,R0
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134 140530 004767 140150' JSR PC,PRINT
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135 140534 132737 000100 177564 1$: BITB #100,@#177564
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136 140542 001374 BNE 1$
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137 140544 005004 CLR R4
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138 140546 012703 141043 MOV #CMDLST,R3 ; CMD LIST
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139 140552 112300 3$: MOVB (R3)+,R0
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140 140554 001431 BEQ 13$
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141 140556 016702 140240' MOV BUFFER,R2 ; USER CMD
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142 140562 112201 4$: MOVB (R2)+,R1
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143 140564 001431 BEQ 15$ ; NULL COMMAND?
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144 140566 120127 000040 CMPB R1,#40
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145 140572 001773 BEQ 4$ ; SKIP SPACE
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146 140574 120001 5$: CMPB R0,R1
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147 140576 001010 BNE 7$
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148 140600 112300 MOVB (R3)+,R0
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149 140602 001412 BEQ 9$
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150 140604 112201 MOVB (R2)+,R1
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151 140606 001410 BEQ 9$
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152 140610 120127 000040 CMPB R1,#40
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153 140614 001367 BNE 5$
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154 140616 000404 BR 9$
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155 140620 112300 7$: MOVB (R3)+,R0
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156 140622 001376 BNE 7$
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157 140624 005204 INC R4
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158 140626 000751 BR 3$
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159 140630 006304 9$: ASL R4
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160 140632 004774 140700 JSR PC,@CMDTBL(R4) ; EXECUTE
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161 140636 000404 BR 15$
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162
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163 140640 012700 141077 13$: MOV #UNKMSG,R0
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164 140644 004767 140150' JSR PC,PRINT
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165
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166 140650 005067 140242' 15$: CLR LENGTH
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167 140654 012700 141173 MOV #PROMPT,R0
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168 140660 004767 140150' JSR PC,PRINT
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169 140664 012604 MOV (SP)+,R4
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170 140666 012603 MOV (SP)+,R3
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171 140670 012602 MOV (SP)+,R2
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172 140672 012601 MOV (SP)+,R1
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173 140674 012600 MOV (SP)+,R0
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174 140676 000002 RTI
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175
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176
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177 140700 142072 141266 141302 CMDTBL: .WORD BOOT,HALT,TEST,LIGHTS,HELP
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140706 141406 141254
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178 140712 103 117 115 HLPMSG: .ASCIZ 'COMMANDS ARE BOOT, HALT, LIGHTS, TEST AND HELP'<15><12>'BOOT DEVICES ARE RK? RL? OR RP?'<15><12>
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140715 115 101 116
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140720 104 123 040
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140723 101 122 105
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140726 040 102 117
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140731 117 124 054
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140734 040 110 101
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140737 114 124 054
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140742 040 114 111
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140745 107 110 124
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140750 123 054 040
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140753 124 105 123
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140756 124 040 101
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140761 116 104 040
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140764 110 105 114
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140767 120 015 012
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140772 102 117 117
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140775 124 040 104
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141000 105 126 111
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141003 103 105 123
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141006 040 101 122
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141011 105 040 122
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141014 113 077 040
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141017 122 114 077
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141022 040 117 122
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141025 040 122 120
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141030 077 015 012
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141033 000
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179 141034 015 012 000 EOL: .BYTE 15,12,0
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180 141037 010 040 010 DEL: .BYTE 10,40,10,0
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141042 000
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181 141043 102 117 117 CMDLST: .ASCIZ 'BOOT'
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141046 124 000
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182 141050 110 101 114 .ASCIZ 'HALT'
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141053 124 000
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183 141055 124 105 123 .ASCIZ 'TEST'
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141060 124 000
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184 141062 114 111 107 .ASCIZ 'LIGHTS'
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141065 110 124 123
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141070 000
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185 141071 110 105 114 .ASCIZ 'HELP'
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141074 120 000
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186 141076 000 .BYTE 0
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187 141077 125 116 113 UNKMSG: .ASCIZ 'UNKNOWN COMMAND'<12><15>
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141102 116 117 127
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141105 116 040 103
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141110 117 115 115
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141113 101 116 104
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141116 012 015 000
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188 141121 120 101 125 BANNER: .ASCIZ 'PAUL NANKERVIS - PAULNANK@HOTMAIL.COM'<12><15><12><15>
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141124 114 040 116
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141127 101 116 113
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141132 105 122 126
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141135 111 123 040
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141140 055 040 120
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141143 101 125 114
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141146 116 101 116
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141151 113 100 110
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141154 117 124 115
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141157 101 111 114
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141162 056 103 117
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141165 115 012 015
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141170 012 015 000
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189 141173 102 117 117 PROMPT: .ASCIZ 'BOOT> '
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141176 124 076 040
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141201 000
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190 141202 125 116 113 BADBOO: .ASCIZ 'UNKNOWN BOOT DEVICE'<12><15>
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141205 116 117 127
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141210 116 040 102
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141213 117 117 124
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141216 040 104 105
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141221 126 111 103
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141224 105 012 015
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141227 000
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191 141230 040 040 040 PERMSG: .ASCIZ ' CLOCK TICKS'<12><15>
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141233 040 040 040
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141236 103 114 117
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141241 103 113 040
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141244 124 111 103
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141247 113 123 012
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141252 015 000
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192
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193 .EVEN
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194
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195 HELP: ; 141244
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196 141254 012700 140712 MOV #HLPMSG,R0
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197 141260 004767 140150' JSR PC,PRINT
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198 141264 000207 RTS PC
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199
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200 HALT: ; 141260
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201 141266 000000 HALT
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202 141270 012700 141034 MOV #EOL,R0
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203 141274 004767 140150' JSR PC,PRINT
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204 141300 000207 RTS PC
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205
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206 TEST: ; 141272
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207 141302 005067 140122' CLR CLKTIC
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208
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209 141306 012705 015000 MOV #15000,R5
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210 141312 010537 177570 10$: MOV R5,@#177570 ; DISPLAY
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211 141316 010504 MOV R5,R4
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212 141320 006204 ASR R4
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213 141322 005000 15$: CLR R0
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214 141324 010501 MOV R5,R1
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215 141326 071004 DIV R4,R0
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216 141330 010002 MOV R0,R2
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217 141332 070204 MUL R4,R2
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218 141334 060301 ADD R3,R1
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219 141336 020105 CMP R1,R5
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220 141340 001401 BEQ 20$
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221 141342 000000 HALT
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222 141344 077412 20$: SOB R4,15$
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223 141346 077517 SOB R5,10$
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224
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225 141350 012700 141235 MOV #PERMSG+5,R0
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226 141354 016703 140122' MOV CLKTIC,R3
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227
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228 141360 005002 25$: CLR R2 ; 141350
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229 141362 071227 000010 DIV #10,R2
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230 141366 062703 000060 ADD #'0,R3
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231 141372 110340 MOVB R3,-(R0)
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232 141374 010203 MOV R2,R3
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233 141376 001370 BNE 25$
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234
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235 141400 004767 140150' JSR PC,PRINT
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236 141404 000207 RTS PC
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237
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238
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239 177572 MMR0=177572
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240 177574 MMR1=177574
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241 177576 MMR2=177576
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242 172516 MMR3=172516
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243
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244 LIGHTS: ; 141376
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245 141406 012703 077406 MOV #77406,R3 ; DEFAULT PDR
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246 141412 005002 CLR R2
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247 141414 005001 CLR R1
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248 141416 012700 000010 MOV #8.,R0
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249 141422 010361 172300 1$: MOV R3,172300(R1) ; KERNEL I PDR
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250 141426 010261 172340 MOV R2,172340(R1) ; KERNEL I PAR
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251 141432 010361 172320 MOV R3,172320(R1) ; KERNEL D PDR
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252 141436 010261 172360 MOV R2,172360(R1) ; KERNEL D PAR
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253 141442 010361 172200 MOV R3,172200(R1) ; SUPER I PDR
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254 141446 010261 172240 MOV R2,172240(R1) ; SUPER I PAR
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255 141452 010361 172220 MOV R3,172220(R1) ; SUPER D PDR
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256 141456 010261 172260 MOV R2,172260(R1) ; SUPER D PAR
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257 141462 010361 177600 MOV R3,177600(R1) ; USER I PDR
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258 141466 010261 177640 MOV R2,177640(R1) ; USER I PAR
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259 141472 010361 177620 MOV R3,177620(R1) ; USER D PDR
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260 141476 010361 177660 MOV R3,177660(R1) ; USER D PAR
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261 141502 062702 000200 ADD #200,R2
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262 141506 062701 000002 ADD #2,R1
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263 141512 077035 SOB R0,1$
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264 141514 052737 176000 172376 BIS #176000,@#172376 ; KERNEL D POINTS TO I/O SPACE
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265 141522 052737 176000 172276 BIS #176000,@#172276 ; SUPER D POINTS TO I/O SPACE
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266 141530 052737 176000 177676 BIS #176000,@#177676 ; USER D POINTS TO I/O SPACE
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267 141536 012737 000077 172516 MOV #77,@#MMR3 ; 77 FOR 22 BIT
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268 141544 012737 000001 177572 MOV #1,@#MMR0
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269
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270 141552 012737 001700 172244 MOV #1700,@#172244 ; BASE SUPER I (PAR 2) #40000 AT #170000
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271 141560 012737 001700 172264 MOV #1700,@#172264 ; BASE SUPER D (PAR 2) #40000 AT #170000
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272 141566 012737 010000 177776 MOV #010000,@#177776 ; SET PM TO SUPER
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273
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274 141574 012703 040200 MOV #40200,R3 ; SUPER CODE ADDRESS
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275 141600 012702 141626 MOV #SUPERS,R2 ; ADDRESS SUPER CODE
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276 141604 012246 10$: MOV (R2)+,-(SP)
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277 141606 006623 MTPI (R3)+
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278 141610 020227 142072 CMP R2,#SUPERE
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279 141614 103773 BLO 10$
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280
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281 141616 012767 040200 140120' MOV #40200,LGHTON ; CHANGE IDLE TASK
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282 141624 000207 RTS PC
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283
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284 ;
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285 ; TO BE COPIED TO SUPER #40200 AT PHYSICAL #170000
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286 ; #40000 TO #40200 FOR WAIT & JMP INSTRUCTIONS
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287 ;
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288 SUPERS: ; 141616
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289 141626 012700 000037 MOV #37,R0 ; LOAD PATTERN
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290 141632 012701 174000 MOV #174000,R1
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291 141636 032737 000001 177570 BIT #1,@#177570
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292 141644 001414 BEQ 10$
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293 141646 012700 007417 MOV #7417,R0
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294 141652 010001 MOV R0,R1
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295 141654 005101 COM R1
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296 141656 032737 000002 177570 BIT #2,@#177570
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297 141664 001404 BEQ 10$
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298 141666 012700 036163 MOV #36163,R0
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299 141672 012701 037000 MOV #37000,R1
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300 141676 010102 10$: MOV R1,R2
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301 141700 162702 000002 SUB #2,R2
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302 141704 042702 000001 BIC #1,R2 ; WAIT ADDRESS
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303 141710 010203 MOV R2,R3
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304 141712 042703 177701 BIC #177701,R3 ; ADDRESS OFFSET
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305 141716 012763 000001 040000 MOV #0000001,40000(R3) ; WRITE WAIT
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306 141724 062703 000002 ADD #2,R3
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307 141730 012763 000113 040000 MOV #0000113,40000(R3) ; WRITE JMP (R3)
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308
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309 141736 010204 MOV R2,R4
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310 141740 072427 177772 ASH #-6,R4
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311 141744 042704 177600 BIC #177600,R4
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312 141750 012705 001700 MOV #1700,R5
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313 141754 160405 SUB R4,R5 ; PAR ADDRESS BASE FOR WAIT
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314 141756 010204 MOV R2,R4
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315 141760 072427 177764 ASH #-12.,R4
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316 141764 042704 177761 BIC #177761,R4 ; PAR SELECT OFFSET
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317 141770 010564 172240 MOV R5,172240(R4) ; SUPER I SPACE
|
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318
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319 141774 010103 MOV R1,R3
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320 141776 072327 177764 ASH #-12.,R3
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321 142002 042703 177761 BIC #177761,R3 ; PAR SELECT OFFSET
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322 142006 020304 CMP R3,R4 ; SAME PAR
|
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323 142010 001412 BEQ 30$
|
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324 142012 010104 MOV R1,R4
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325 142014 072427 177772 ASH #-6,R4
|
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326 142020 042704 177600 BIC #177600,R4
|
|
327 142024 012705 001700 MOV #1700,R5
|
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328 142030 160405 SUB R4,R5 ; PAR ADDRESS BASE FOR JMP
|
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329 142032 010563 172240 MOV R5,172240(R3) ; SUPER I SPACE
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|
330 30$:
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331 142036 012704 000003 MOV #3,R4
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332 142042 063704 177570 ADD @#177570,R4
|
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333 142046 012703 000002 MOV #2,R3
|
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334 142052 060703 ADD PC,R3
|
|
335 142054 000112 40$: JMP (R2)
|
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336 142056 077402 SOB R4,40$
|
|
337 142060 010002 MOV R0,R2
|
|
338 142062 006002 ROR R2 ; ROTATE PATTERN
|
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339 142064 006101 ROL R1
|
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340 142066 006000 ROR R0
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341 142070 000702 BR 10$
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342 SUPERE:
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343
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344 BOOT: ; 142062
|
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345 142072 005003 CLR R3 ; UNIT
|
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346 142074 112201 1$: MOVB (R2)+,R1
|
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347 142076 001545 BEQ BOOTRK ; DEFAULT DEVICE IS RK0
|
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348 142100 120127 000040 CMPB R1,#40
|
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349 142104 001773 BEQ 1$
|
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350 142106 120127 000122 CMPB R1,#'R
|
|
351 142112 001405 BEQ 5$
|
|
352
|
|
353 142114 012700 141202 MOV #BADBOO,R0
|
|
354 142120 004767 140150' JSR PC,PRINT
|
|
355 142124 000207 RTS PC
|
|
356
|
|
357 142126 112201 5$: MOVB (R2)+,R1 ; HOPEFULLY K, L OR P
|
|
358 142130 112200 7$: MOVB (R2)+,R0 ; DIGIT
|
|
359 142132 001416 BEQ 9$
|
|
360 142134 120027 000040 CMPB R0,#40
|
|
361 142140 001413 BEQ 9$
|
|
362 142142 120027 000067 CMPB R0,#'7
|
|
363 142146 003031 BGT 11$
|
|
364 142150 162700 000060 SUB #'0,R0
|
|
365 142154 002426 BLT 11$
|
|
366 142156 006303 ASL R3
|
|
367 142160 006303 ASL R3
|
|
368 142162 006303 ASL R3
|
|
369 142164 050003 BIS R0,R3 ; PUT DIGIT INTO UNIT
|
|
370 142166 000760 BR 7$
|
|
371 142170 005002 9$: CLR R2
|
|
372 142172 012722 000137 MOV #137,(R2)+
|
|
373 142176 012722 140000 MOV #START,(R2)+
|
|
374 142202 012722 140000 MOV #START,(R2)+
|
|
375 142206 005022 CLR (R2)+
|
|
376 142210 120127 000113 CMPB R1,#'K
|
|
377 142214 001476 BEQ BOOTRK
|
|
378 142216 120127 000114 CMPB R1,#'L
|
|
379 142222 001410 BEQ BOOTRL
|
|
380 142224 120127 000120 CMPB R1,#'P
|
|
381 142230 001517 BEQ BOOTRP
|
|
382
|
|
383 142232 012700 141077 11$: MOV #UNKMSG,R0
|
|
384 142236 004767 140150' JSR PC,PRINT
|
|
385 142242 000207 RTS PC
|
|
386
|
|
387 174400 RLCS=174400
|
|
388 BOOTRL: ; 142234
|
|
389 142244 000005 RESET
|
|
390 142246 000303 SWAB R3 ; UNIT NUMBER
|
|
391 142250 012701 174400 MOV #RLCS,R1 ; CSR
|
|
392 142254 012761 000013 000004 MOV #13,4(R1) ; CLR ERR
|
|
393 142262 052703 000004 BIS #4,R3 ; UNIT+GSTAT
|
|
394 142266 010311 MOV R3,(R1) ; ISSUE CMD
|
|
395 142270 105711 TSTB (R1) ; WAIT
|
|
396 142272 100376 BPL .-2
|
|
397 142274 105003 CLRB R3
|
|
398 142276 052703 000010 BIS #10,R3 ; UNIT+RDHDR
|
|
399 142302 010311 MOV R3,(R1) ; ISSUE CMD
|
|
400 142304 105711 TSTB (R1) ; WAIT
|
|
401 142306 100376 BPL .-2
|
|
402 142310 016102 000006 MOV 6(R1),R2 ; GET HDR
|
|
403 142314 042702 000077 BIC #77,R2 ; CLR SECTOR
|
|
404 142320 005202 INC R2 ; MAGIC BIT
|
|
405 142322 010261 000004 MOV R2,4(R1) ; SEEK TO 0
|
|
406 142326 105003 CLRB R3
|
|
407 142330 052703 000006 BIS #6,R3 ; UNIT+SEEK
|
|
408 142334 010311 MOV R3,(R1) ; ISSUE CMD
|
|
409 142336 105711 TSTB (R1) ; WAIT
|
|
410 142340 100376 BPL .-2
|
|
411 142342 005061 000002 CLR 2(R1) ; CLR BA
|
|
412 142346 005061 000004 CLR 4(R1) ; CLR DA
|
|
413 142352 012761 177000 000006 MOV #-512.,6(R1) ; SET WC
|
|
414 142360 105003 CLRB R3
|
|
415 142362 052703 000014 BIS #14,R3 ; UNIT+READ
|
|
416 142366 010311 MOV R3,(R1) ; ISSUE CMD
|
|
417 142370 105711 TSTB (R1) ; WAIT
|
|
418 142372 100376 BPL .-2
|
|
419 142374 042711 000377 BIC #377,(R1)
|
|
420 142400 005002 CLR R2
|
|
421 142402 005003 CLR R3
|
|
422 142404 005004 CLR R4
|
|
423 142406 005005 CLR R5
|
|
424 142410 005007 CLR PC
|
|
425
|
|
426 177412 RKDA=177412
|
|
427 000005 READGO=5
|
|
428 BOOTRK:
|
|
429 142412 000005 RESET ; 142402
|
|
430 142414 000303 SWAB R3 ; UNIT NUMBER
|
|
431 142416 006303 ASL R3
|
|
432 142420 006303 ASL R3
|
|
433 142422 006303 ASL R3
|
|
434 142424 006303 ASL R3
|
|
435 142426 006303 ASL R3
|
|
436 142430 012701 177412 MOV #RKDA,R1 ; CSR
|
|
437 142434 010311 MOV R3,(R1) ; LOAD DA
|
|
438 142436 005041 CLR -(R1) ; CLEAR BA
|
|
439 142440 012741 177000 MOV #-256.*2,-(R1) ; LOAD WC
|
|
440 142444 012741 000005 MOV #READGO,-(R1) ; READ & GO
|
|
441 142450 005002 CLR R2
|
|
442 142452 005003 CLR R3
|
|
443 142454 005004 CLR R4
|
|
444 142456 005005 CLR R5
|
|
445 142460 105711 TSTB (R1)
|
|
446 142462 100376 BPL .-2
|
|
447 142464 105011 CLRB (R1)
|
|
448 142466 005007 CLR PC
|
|
449
|
|
450 176700 RPCSR=0176700
|
|
451 BOOTRP: ; 142460
|
|
452 142470 000005 RESET
|
|
453 142472 012701 176700 MOV #RPCSR, R1
|
|
454 142476 012761 000040 000010 MOV #0000040, 10(R1) ; RESET
|
|
455 142504 010361 000010 MOV R3, 10(R1) ; SET UNIT
|
|
456 142510 012711 000021 MOV #0000021, (R1) ; PACK ACK
|
|
457 142514 012761 010000 000032 MOV #0010000, 32(R1) ; 16B MODE
|
|
458 142522 012761 177000 000002 MOV #-512., 2(R1) ; SET WC
|
|
459 142530 005061 000004 CLR 4(R1) ; CLR BA
|
|
460 142534 005061 000006 CLR 6(R1) ; CLR DA
|
|
461 142540 005061 000034 CLR 34(R1) ; CLR CYL
|
|
462 142544 012711 000071 MOV #0000071, (R1) ; READ
|
|
463 142550 105711 TSTB (R1) ; WAIT
|
|
464 142552 100376 BPL .-2
|
|
465 142554 105011 CLRB (R1)
|
|
466 142556 010300 MOV R3,R0
|
|
467 142560 005007 CLR PC
|
|
468
|
|
469 .END START
|
|
469
|