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1 ********************************************************************
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2 * JoyDrv - Joystick Driver for 6551/Microsoft Mouse
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3 *
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4 * $Id$
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5 *
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1263
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6 * Edt/Rev YYYY/MM/DD Modified by
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7 * Comment
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0
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8 * ------------------------------------------------------------------
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1263
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9 * 6 1988/??/??
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10 * L2 Upgrade distribution version.
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0
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11
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12 nam JoyDrv
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13 ttl Joystick Driver for 6552/Microsoft Mouse
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14
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15 * Disassembled 98/09/09 09:58:38 by Disasm v1.6 (C) 1988 by RML
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16
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17 MPI set 1
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18
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19 ifp1
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20 use defsfile
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21 endc
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22
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23 tylg set Systm+Objct
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24 atrv set ReEnt+rev
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1263
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25 rev set $00
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26 edition set 6
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27
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28 mod eom,name,tylg,atrv,start,size
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29
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30 u0000 rmb 2
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31 u0002 rmb 1
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32 u0003 rmb 2
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33 u0005 rmb 1
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34 u0006 rmb 1
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35 u0007 rmb 121
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36 u0080 rmb 18
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37 u0092 rmb 21
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38 u00A7 rmb 65213
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39 size equ .
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40
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41 name fcs /JoyDrv/
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42 fcb edition
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43
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44 start lbra Init
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45 lbra Term
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46 lbra SSMsBtn
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47 lbra SSMsXY
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48 lbra SSJoyBtn
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49
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50 SSJoyXY pshs x,b,a
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51 ldx #PIA0Base
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52 lda <$23,x
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53 ldb <$20,x
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54 pshs b,a
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55 anda #$F7
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56 sta <$23,x
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57 lda $01,x
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58 ldb $03,x
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59 pshs b,a
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60 andb #$F7
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61 lsr $04,s
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62 bcs L0043
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63 orb #$08
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64 L0043 stb $03,x
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65 lda ,s
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66 ora #$08
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67 bsr L0065
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68 std $06,s
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69 lda ,s
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70 anda #$F7
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71 bsr L0065
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72 std $04,s
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73 puls b,a
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74 sta $01,x
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75 stb $03,x
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76 puls b,a
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77 stb <$20,x
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78 sta <$23,x
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79 puls pc,y,x
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80 L0065 sta $01,x
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81 lda #$7F
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82 ldb #$40
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83 bra L0078
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84 L006D lsrb
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85 cmpb #$01
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86 bhi L0078
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87 lsra
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88 lsra
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89 tfr a,b
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90 clra
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91 rts
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92 L0078 pshs b
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93 sta <$20,x
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94 tst ,x
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95 bpl L0085
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96 adda ,s+
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97 bra L006D
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98 L0085 suba ,s+
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99 bra L006D
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100 L0089 fcb $00
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101 L008A fcb $07,$01
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102 Init fcb $cc,$00,$07
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103 L008F fcb $a7
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104 bitb #$5A
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105 bpl L008F
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106 ldd >M$Mem,pcr
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107 leax >L0089,pcr
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108 leay >L0150,pcr
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109 os9 F$IRQ
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110 bcs L00F5
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111 tfr d,x
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112 ldd #$46C0
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113 pshs cc
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114 orcc #IntMasks
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115 sta $01,x
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116 stb $01,x
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117 clr $02,x
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118 lda >PIA1Base+3
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119 anda #$FC
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120 sta >PIA1Base+3
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121 lda >PIA1Base+2
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122 ldd #$0187
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123 ora <u0092
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124 sta <u0092
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125 sta >IrqEnR
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126 stb ,x
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127 ldb $03,x
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128 ldb ,x
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129 ldb $03,x
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130 ldb ,x
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131 andb >L008A,pcr
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132 bne L00DF
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133
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134 ifeq MPI-1
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135 lda #$03
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136 sta MPI.Slct
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137 endc
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138
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139 puls pc,cc
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140
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141 Term pshs cc
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142 orcc #IntMasks
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143 L00DF ldx >M$Mem,pcr
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144 lda #$7F
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145 sta ,x
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146 puls cc
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147 tfr x,d
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148 ldx #$0000
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149 leay >L0150,pcr
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150 os9 F$IRQ
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151 L00F5 rts
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152
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153 SSJoyBtn ldb #$FF
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154 ldx #PIA0Base
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155 stb $02,x
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156 ldb ,x
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157 comb
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158 andb #$0F
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159 rts
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160
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161 SSMsBtn lda ,u
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162 clrb
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163 bita #$20
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164 beq L010C
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165 orb #$03
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166 L010C bita #$10
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167 beq L0112
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168 orb #$0C
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169 L0112 tfr b,a
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170 anda #$FA
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171 pshs a
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172 andb #$05
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173 orb u0007,u
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174 leax <L0132,pcr
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175 lda b,x
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176 anda #$0A
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177 sta u0007,u
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178 ldb b,x
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179 andb #$85
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180 bpl L012F
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181 ldb u0002,u
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182 andb #$C0
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183 L012F orb ,s+
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184 rts
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185 L0132 fdb $0003,$0003,$0806,$0206,$8002,$0002,$0806,$0a06
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186
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187 SSMsXY pshs cc
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188 orcc #IntMasks
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189 ldx u0003,u
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190 ldd u0005,u
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191 lsra
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192 rorb
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193 tfr d,y
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194 puls pc,cc
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195 L0150 ldx >M$Mem,pcr
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196 bita #$06
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197 beq L0162
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198 ldb $03,x
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199 L015A lda u0002,u
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200 anda #$FC
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201 L015E sta u0002,u
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202 L0160 clrb
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203 rts
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204 L0162 bita #$01
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205 beq L0160
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206 ldb $03,x
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207 lda u0002,u
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208 anda #$03
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209 bne L0178
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210 bitb #$40
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211 beq L0160
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212 L0172 stb a,u
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213 inc u0002,u
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214 clrb
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215 rts
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216 L0178 bitb #$40
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217 bne L015A
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218 cmpa #$02
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219 bcs L0172
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220 ldx #$017E
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221 pshs x
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222 lda ,u
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223 lsra
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224 lsra
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225 leax u0005,u
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226 bsr L01A7
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227 ldd ,u
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228 ldx #$027F
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229 stx ,s
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230 leax u0003,u
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231 bsr L01A7
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232 leas $02,s
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233 lda #$80
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234 ldx u0003,u
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235 cmpx #$0140
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236 bcc L015E
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237 ora #$C0
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238 bra L015E
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239 L01A7 lslb
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240 lslb
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241 lsra
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242 rorb
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243 lsra
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244 rorb
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245 sex
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246 pshs b,a
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247 bpl L01B9
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248 orb #$07
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249 addd #$0001
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250 bra L01BB
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251 L01B9 andb #$F8
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252 L01BB asra
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253 rorb
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254 addd ,s++
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255 addd ,x
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256 bpl L01C5
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257 clra
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258 clrb
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259 L01C5 cmpd $02,s
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260 bls L01CC
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261 ldd $02,s
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262 L01CC std ,x
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263 rts
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264
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265 emod
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266 eom equ *
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267 end
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