PR#3 PREFIX /A2OSX.BUILD LOMEM $A00 INC 1 AUTO 6 */-------------------------------------- * # Sleep * Make current process suspend until next RUN * ## In : * (none) * ## Out : * (none) *\-------------------------------------- K.Sleep pla get PC LO sec sbc pCode ldy #S.PS.PC sta (pPs),y pla get PC HI sbc pCode+1 iny sta (pPs),y lda (pPs) ora #S.PS.F.SLEEP sta (pPs) clc No error, rts back to Kernel */-------------------------------------- * # ExecProcessNewEnv.YA * # ExecProcess.YA (Blocking Parent PID) * # CreateProcessNewEnv.YA * # CreateProcess.YA (Non Blocking) * ## In: * Y,A = PTR To Cmd Line * ## Out: * A = Child PSID *\-------------------------------------- K.ExecProcessNewEnv.YA ldx #S.PS.F.ENV+S.PS.F.HOLD .HS 2C bit abs K.ExecProcess.YA ldx #S.PS.F.HOLD .HS 2C bit abs K.CreateProcessNewEnv.YA ldx #S.PS.F.ENV .HS 2C bit abs K.CreateProcess.YA ldx #0 stx K.CreateProcess.Flags >STYA K.CreateProcess.CmdLine jsr PS.CreateChild Child S.PS at ZPPtr3 bcs .9 sta .8+1 >LDYA K.CreateProcess.CmdLine jsr PS.CmdLine2Args Y,A = Args[0] bcs .9 jsr PS.Init bcc .8 pha save error code lda .8+1 jsr CORE.PSFree.A pla get back error code sec rts .8 lda #$ff self modified .9 rts *-------------------------------------- K.CreateProcess.Flags .BS 1 K.CreateProcess.CmdLine .BS 2 *-------------------------------------- * PS.CreateChild * in : * out : * A = PSID * we cannot use ZPPtrs1 & 2 * because of calling K.NewStrY.A & S.DupEnv.A *-------------------------------------- PS.CreateChild >LDYAI TskMgr.Table+S.PS >STYA ZPPtr3 ldx #0 .1 inx cpx TskMgr.Count beq .2 lda (ZPPtr3) Found an empty slot bpl .3 lda ZPPtr3 clc adc #S.PS sta ZPPtr3 bcc .1 inc ZPPtr3+1 bra .1 .2 cpx #K.PS.MAX bne .3 lda #TSKMGR.ERROOH sec rts .3 inc TskMgr.Count .4 inc TSKMGR.LASTID Get a PSID not alredy running beq .4 not = 0 lda TSKMGR.LASTID jsr CORE.GetPSByID.A bcc .4 ldy #S.PS.PID lda TSKMGR.LASTID sta (ZPPtr3),y lda #0 ldy #S.PS.hCS .5 sta (ZPPtr3),y Blank Everything in this S.PS iny cpy #S.PS bne .5 lda #S.PS.F.ENV bit K.CreateProcess.Flags need to create ENV & Prefix ? beq .6 no... sta (ZPPtr3) Mark this PS with ENV flag ldy #S.PS.hPREFIX copy hPREFIX... lda (pPs),y jsr K.GetMemPtr.A jsr K.NewStr.YA bcs .9 txa ldy #S.PS.hPREFIX sta (ZPPtr3),y ldy #S.PS.hENV ...and hENV from parent PS lda (pPs),y jsr PS.DupEnv.A bcs .9 ldy #S.PS.hENV sta (ZPPtr3),y bra .8 .6 ldy #S.PS.hPREFIX reuse same hPREFIX... lda (pPs),y sta (ZPPtr3),y ldy #S.PS.hENV ...and hENV from parent PS lda (pPs),y sta (ZPPtr3),y .8 ldy #S.PS.hStdIn .81 lda (pPs),y sta (ZPPtr3),y iny cpy #S.PS.hStdErr+1 bne .81 ldy #S.PS.PID lda (pPs),y ldy #S.PS.PPID sta (ZPPtr3),y lda #S.PS.F.HOLD bit K.CreateProcess.Flags beq .82 ora (pPs) sta (pPs) HOLD parent PS if ExecProcess .82 lda #S.PS.F.INUSE+S.PS.F.INIT ora (ZPPtr3) sta (ZPPtr3) Make this PS Init.... ldy #S.PS.CPID lda TSKMGR.LASTID sta (pPs),y clc Exit with A=PSID .9 rts *-------------------------------------- PS.CmdLine2Args >STYA ZPPtr1 ldy #0 .1 lda (ZPPtr1),y compute strlen in Y,X beq .2 cmp #'"' skip "" in computation.... beq .1 iny bne .1 max 255 .2 tya +2 for ending 0 for last string, and endig 0 for array clc adc #2 tay lda #0 bcc .3 inc .3 jsr K.GetMem.YA bcs .9 phy save PTR.LO pha save PTR.HI >STYA ZPPtr2 txa ldy #S.PS.hARGS sta (ZPPtr3),y stz PS.CmdLine2Args.bInQuote ldy #0 ldx #0 Arg Count .4 lda (ZPPtr1),y beq .8 cmp #'"' found a quote ? bne .5 lda PS.CmdLine2Args.bInQuote eor #$ff sta PS.CmdLine2Args.bInQuote bra .71 .5 cmp #' ' bne .70 bit PS.CmdLine2Args.bInQuote bmi .70 inx Found one arg !!! lda #0 .70 sta (ZPPtr2) yes, set this token len .71 inc ZPPtr2 bne .72 inc ZPPtr2+1 .72 iny bne .4 .8 lda #0 sta (ZPPtr2) set Array Ending 0 txa ldy #S.PS.ARGC sta (ZPPtr3),y pla get back PTR.HI ply get back PTR.LO clc .9 rts PS.CmdLine2Args.bInQuote .BS 1 *-------------------------------------- PS.Init jsr BIN.Load.YA Y,A=filename full path bcs .9 >STYA ZPPtr4 save PTR to Code Segment txa ldy #S.PS.hCS sta (ZPPtr3),y save CS hMem in TSKSLOT ldy #H.BIN.EXE.DS.SIZE+1 lda (ZPPtr4),y Load DS.SIZE HI tax dey ora (ZPPtr4),y beq .2 DS.SIZE=0... lda (ZPPtr4),y tay txa Y,A = DS.SIZE jsr K.GetMem0.YA bcs .9 txa ldy #S.PS.hDS sta (ZPPtr3),y save DS hMem in TSKSLOT .2 ldy #H.BIN.EXE.SS.SIZE+1 lda (ZPPtr4),y Load SS.SIZE.HI tax dey ora (ZPPtr4),y bne .3 SS.SIZE=0, set as default $100 inx SS.SIZE.HI .3 lda (ZPPtr4),y tay txa >PUSHYA >PUSHBI S.MEM.F.ALIGN jsr K.GetMem bcs .9 txa ldy #S.PS.hSS sta (ZPPtr3),y save SS hMem in TSKSLOT clc .9 rts *-------------------------------------- * PS.DupEnv.A * In: * A = ENV hMem To Duplicate * Out: * A = hMem to new ENV *-------------------------------------- PS.DupEnv.A jsr K.GetMemPtr.A >STYA ZPPtr1 >LDYAI K.ENV.SIZE jsr K.GetMem.YA bcs .9 >STYA ZPPtr2 ldy #0 .1 lda (ZPPtr1),y sta (ZPPtr2),y beq .8 iny bne .1 inc ZPPtr1+1 inc ZPPtr2+1 bra .1 .8 txa clc .9 rts *-------------------------------------- MAN SAVE /A2OSX.SRC/SYS/KERNEL.S.PS LOAD /A2OSX.SRC/SYS/KERNEL.S ASM