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1 *******************************************************************2
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2 * Virtual RBF - Random Block File Manager *
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3
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4 nam VRBF
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5 ttl VRandom Block File Manager
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6
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7 ifp1
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8 use defsfile
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9 endc
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10
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11 rev set $00
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12 ty set FlMgr
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13 IFNE H6309
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14 lg set Obj6309
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15 ELSE
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16 lg set Objct
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17 ENDC
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18 tylg set ty+lg
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19 atrv set ReEnt+rev
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20 edition set 37
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21
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22 org $00
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23 size equ .
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24
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25 mod eom,name,tylg,atrv,start,size
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26
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27 name fcs /VRBF/
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28 fcb edition
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29
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30 *L0012 fcb DRVMEM
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31
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32
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33 ****************************
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34 *
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35 * Main entry point for RBF
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36 *
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37 * Entry: Y = Path descriptor pointer
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38 * U = Register stack pointer
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39
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40 start lbra Create
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41 lbra Open
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42 lbra MakDir
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43 lbra ChgDir
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44 lbra Delete
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45 lbra Seek
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46 lbra Read
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47 lbra Write
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48 lbra ReadLn
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49 lbra WriteLn
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50 lbra GetStat
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51 lbra SetStat
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52 lbra Close
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53
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54 *
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55 *
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56 *
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57
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58
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59 *
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60 * I$Create Entry Point
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61 *
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62 * Entry: A = access mode desired (0 read, 1 write, 2 update, bit 4 for exex)
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63 * B = file attributes
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64 * X = address of the pathlist
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65 *
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66 * Exit: A = pathnum
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67 * X = last byte of pathlist address
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68 *
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69 * Error: CC Carry set
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70 * B = errcode
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71 *
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72 Create pshs y,u,cc Preserve path desc ptr
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73 orcc #IntMasks
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74 bsr setuppd
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75 stb 4,u put file attribute
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76 ldb #$d1
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77 stb ,u do IO b,x will be rewrited
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78 ldb ,u
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79 beq ok00
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80 bra er00
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81
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82 *
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83 * I$Open Entry Point
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84 *
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85 * Entry: A = access mode desired
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86 * X = address of the pathlist
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87 *
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88 * Exit: A = pathnum
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89 * X = last byte of pathlist address
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90 *
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91 * Error: CC Carry set
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92 * B = errcode
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93 *
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94 Open pshs y,u,cc
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95 orcc #IntMasks
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96 bsr setuppd
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97 ldb #$d2
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98 stb ,x
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99 ldb ,x
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100 cmpb #0
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101 beq ok00
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102 bra er00
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103
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104 * u user stack
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105 * y path descriptor
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106 * PD.PD.y path number
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107 * PD.PD.MOD.y mode
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108 * PD.RGS,y caller's rega = u
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109 * PD.DEV,y device table
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110 * PD.DRV,y drive number
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111
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112 setuppd ldx #$FFc0 vdisk port
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113 sty 7,x path descriptor
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114 stu 5,x caller stack
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115 lda <PD.DRV,y
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116 sta 1,x
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117 clra
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118 ldy <D.Proc get process pointer
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119 cmpy <D.SysPrc
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120 beq sysmode
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121 lda #1
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122 sysmode sta 2,x
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123 lda R$A,u
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124 bita #EXEC.
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125 bne usechx
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126 ldd P$DIO+4,y get curwdir #pdnumber
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127 bra s1
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128 usechx ldd P$DIO+10,y get curxdir #pdnumber
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129 s1
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130 std 3,x
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131 rts
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132
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133 er00 puls y,u,cc
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134 orcc #Carry
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135 rts
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136 ok00 puls y,u,cc,pc
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137
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138 *
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139 * I$MakDir Entry Point
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140 *
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141 * Entry: X = address of the pathlist
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142 *
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143 * Exit: X = last byte of pathlist address
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144 *
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145 * Error: CC Carry set
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146 * B = errcode
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147 *
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148 MakDir pshs y,u,cc
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149 orcc #IntMasks
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150 bsr setuppd
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151 ldb #$d3
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152 stb ,x
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153 ldb ,x
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154 cmpb #0
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155 beq ok00
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156 bra er00
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157
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158 *
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159 * I$Close Entry Point
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160 *
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161 * Entry: A = path number
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162 *
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163 * Exit:
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164 *
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165 * Error: CC Carry set
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166 * B = errcode
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167 *
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168 Close pshs y,u,cc
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169 orcc #IntMasks
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170 bsr setuppd
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171 ldb #$db
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172 stb ,x
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173 ldb ,x
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174 cmpb #0
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175 beq ok00
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176 bra er00
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177
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178 *
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179 * I$ChgDir Entry Point
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180 *
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181 * Entry:
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182 *
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183 * Exit:
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184 *
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185 * Error: CC Carry set
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186 * B = errcode
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187 *
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188 ChgDir pshs y,u,cc
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189 orcc #IntMasks
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190 bsr setuppd
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191 ldb #$d4
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192 stb ,x
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193 ldb ,x
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194 ldy 1,s
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195 ldx <D.Proc get process pointer
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196 ldu PD.RGS,y
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197 lda R$A,u
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198 ldb PD.MOD,y get current file mode
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199 bitb #UPDAT. read or write mode?
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200 beq CD30D no, skip ahead
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201 * Change current data dir
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202 clr P$DIO+4,x
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203 sta P$DIO+5,x
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204 CD30D bitb #EXEC. is it execution dir?
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205 beq ok01 no, skip ahead
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206 * Change current execution directory
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207 clr P$DIO+10,x
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208 sta P$DIO+11,x
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209 bra ok01
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210
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211 *
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212 * I$Delete Entry Point
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213 *
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214 * Entry:
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215 *
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216 * Exit:
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217 *
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218 * Error: CC Carry set
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219 * B = errcode
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220 *
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221 *
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222 Delete pshs y,u,cc
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223 orcc #IntMasks
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224 lbsr setuppd
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225 ldb #$d5
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226 stb ,x
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227 ldb ,x
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228 cmpb #0
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229 beq ok01
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230 bra er01
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231
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232 *
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233 * I$Seek Entry Point
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234 *
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235 * Entry:
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236 *
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237 * Exit:
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238 *
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239 * Error: CC Carry set
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240 * B = errcode
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241 *
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242 Seek pshs y,u,cc
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243 orcc #IntMasks
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244 lbsr setuppd
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245 ldb #$d6
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246 stb ,x
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247 ldb ,x
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248 cmpb #0
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249 beq ok01
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250 bra er01
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251
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252 *
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253 * I$ReadLn Entry Point
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254 *
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255 * Entry:
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256 *
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257 * Exit:
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258 *
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259 * Error: CC Carry set
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260 * B = errcode
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261 *
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262 ReadLn pshs y,u,cc
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263 orcc #IntMasks
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264 lbsr setuppd
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265 ldb #$d7
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266 stb ,x
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267 ldb ,x
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268 beq ok01
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269 bra er01
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270
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271 *
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272 * I$Read Entry Point
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273 *
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274 * Entry:
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275 *
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276 * Exit:
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277 *
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278 * Error: CC Carry set
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279 * B = errcode
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280 *
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281 Read pshs y,u,cc
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282 orcc #IntMasks
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283 lbsr setuppd
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284 ldb #$d8
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285 stb ,x
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286 ldb ,x
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287 beq ok01
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288 bra er01
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289
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290
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291 *
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292 * I$WritLn Entry Point
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293 *
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294 * Entry:
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295 *
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296 * Exit:
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297 *
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298 * Error: CC Carry set
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299 * B = errcode
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300 *
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301 WriteLn pshs y,u,cc
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302 orcc #IntMasks
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303 lbsr setuppd
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304 ldb #$d9
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305 stb ,x
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306 ldb ,x
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307 beq ok01
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308 bra er01
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309
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310 *
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311 * I$Write Entry Point
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312 *
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313 * Entry:
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314 *
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315 * Exit:
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316 *
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317 * Error: CC Carry set
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318 * B = errcode
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319 *
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320 Write pshs y,u,cc
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321 orcc #IntMasks
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322 lbsr setuppd
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323 ldb #$da
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324 stb ,x
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325 ldb ,x
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326 beq ok01
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327 er01 puls y,u,cc
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328 orcc #Carry
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329 rts
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330 ok01 puls y,u,cc,pc
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331
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332 *
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333 * I$GetStat Entry Point
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334 *
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335 * Entry:
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336 *
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337 * Exit:
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338 *
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339 * Error: CC Carry set
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340 * B = errcode
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341 *
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342 GetStat pshs y,u,cc
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343 orcc #IntMasks
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344 ldb R$B,u get function code
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345 lbsr setuppd
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346 ldb #$dc
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347 stb ,x
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348 ldb ,x
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349 beq ok01
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350 bra er01
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351
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352
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353 *
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354 * I$SetStat Entry Point
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355 *
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356 * Entry:
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357 *
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358 * Exit:
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359 *
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360 * Error: CC Carry set
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361 * B = errcode
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362 *
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363 SetStat pshs y,u,cc
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364 orcc #IntMasks
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365 ldb R$B,u get function code
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366 lbsr setuppd
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367 ldb #$dd
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368 stb ,x
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369 ldb ,x
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370 beq ok01
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371 bra er01
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372
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373
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374 emod
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375 eom equ *
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376 end
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377
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