NEW AUTO 3,1 *-------------------------------------- CORE.Run stz CORE.PSIndex bra .8 Skip PS0 .1 lda PS.Table.hPS,x beq .8 jsr K.GetMemPtr >STYA pPs lda (pPS) get S.PS.F * bit #S.PS.F.HOLD Waiting for Another Task to Terminate? * beq .2 bpl .2 ldy #S.PS.CPID lda (pPS),y jsr CORE.GetPS bcc .8 yes, still running.... lda (pPS) get S.PS.F again eor #S.PS.F.HOLD unmark as HOLD sta (pPS) .2 jsr CORE.PSSelect Restore ZP & Ptrs .3 jsr CORE.PSExec INIT/RUN/QUIT/RESUME dec IRQ.InKernel bcc .4 INIT/RUN Exit ? jsr CORE.UpdateParentPS ldy #S.PS.S lda #S.PS.S.QUIT sta (pPS),y bra .3 try executing QUIT now... .4 lda (pPS) bit #S.PS.F.SLEEP bne .7 ldy #S.PS.S lda (pPS),y bne .5 lda #S.PS.S.RUN go from INIT to RUN sta (pPS),y bra .7 .5 cmp #S.PS.S.QUIT bne .7 >PUSHBI 2 ldy #S.PS.PID lda (pPS),y >SYSCALL2 Kill bra .8 .7 jsr CORE.PSLeave Save ZP & Ptrs .8 inc CORE.PSIndex ldx CORE.PSIndex cpx CORE.PSCount bne .1 *-------------------------------------- CORE.Events jsr CORE.GetEvents bcs .4 CS=no event jsr CORE.Dispatch bcc .4 CC=All Events Dispatched lda PS.Table.PID Select PS0 jsr K.GetMemPtr >STYA pPs >LDYAI K.STACKTOP >STYA pStack lda #Evt.Table sta pEvent .1 lda (pEvent) beq .3 bmi .2 Ignore & Discard any timer event * jsr CORE.DumpEvent .2 jsr CORE.DestroyEvent .3 lda pEvent clc adc #S.EVT sta pEvent lda CORE.EvtCount bne .1 *-------------------------------------- .4 bit OPENAPPLE bpl .8 lda KBD bpl .8 cmp #"0" bcc .8 cmp #"9"+1 bcs .8 sta KBDSTROBE and #$0F tax lda A2osX.SCRNDEVS,x Get DevID beq .8 No device claimed this screen cmp A2osX.ASCREEN Same as active screen...nothing to do beq .8 >PUSHA >PUSHBI IOCTL.CONTROL request >PUSHWZ Param >SYSCALL2 IOCTL .8 jmp CORE.Run *-------------------------------------- CORE.UpdateParentPS tax save RC From INIT or RUN ldy #S.PS.PPID Notify Parent Process for exit code... lda (pPS),y beq .8 no parent process jsr CORE.GetPSByID X unmodified bcs .8 parent is dead.....skipping... >STYA ZPPtr1 lda (ZPPtr1) Parent PS is HOLD? bit #S.PS.F.HOLD beq .8 no... ldy #S.PS.CPID lda (ZPPtr1),y dey #S.PS.PID cmp (pPS),y bne .8 Hold, but not waiting this PS txa waiting for this PS to terminate.... ldy #S.PS.RC give it RC sta (ZPPtr1),y lda (ZPPtr1) eor #S.PS.F.HOLD release Parent PS HOLD... sta (ZPPtr1) * clc .8 rts *-------------------------------------- * CORE.GetEvents : * IN : * OUT : * CS = no event, A = ERROR * CC * event in YA * (pEvent) *-------------------------------------- CORE.GetEvents lda #Evt.Table sta pEvent point to start of event list stz CORE.EvtCount reset Size bit CORE.IRQMode do we have IRQ enabled for Ticks ? bpl .1 no, regular poll lda IRQ.Tick a Tick ? beq .8 no, no event dec IRQ.Tick bra .2 .1 lda VBL get VLINE status tax eor CORE.VBLState bpl .8 no change,no tick txa sta CORE.VBLState save new bpl .8 Up2down transition,no tick .2 lda #0 dec CORE.TickSec bne .3 not yet One Sec lda IRQ.Mode eor #$C0 sta IRQ.Mode ldx A2osX.ASCREEN cpx #3 devID 3 is /DEV/CONSOLE bne .22 sta SYS.BASL0+38 .22 ldx CORE.TickPerSec stx CORE.TickSec lda #S.EVT.F.T1SEC bra .4 Force Resync T1 & T10... .3 dec CORE.Tick10t bne .6 .4 inc DevMgr.Timer inc A2osX.TIMER16 bne .5 inc A2osX.TIMER16+1 .5 ldx CORE.TickPer10t stx CORE.Tick10t ora #S.EVT.F.T10TH .6 tax Finally, do we have an event ? beq .8 no.... sta (pEvent) inc CORE.EvtCount Add one event to Queue * lda pEvent * clc * adc #S.EVT * sta pEvent if CS, EVT queue full!!! ($100) * MORE EVENT PROCESSING HERE .8 lda CORE.EvtCount if 0, exit with CS (from cmp), and A=0 "no event" beq .9 clc rts .9 sec rts *-------------------------------------- * CORE.Dispatch * IN: * OUT: * CS: Not Dispatched * CC: Event Cleared *-------------------------------------- CORE.Dispatch stz CORE.PSIndex bra .5 skip PS0 .1 lda PS.Table.hPS,x beq .5 jsr K.GetMemPtr >STYA pPS lda (pPS) bit #S.PS.F.EVENT Accept Events ? beq .5 ldy #S.PS.S lda (pPS),y cmp #S.PS.S.RUN bne .5 lda #S.PS.S.DOEVENT Flag this PS for IRQ Mgr sta (pPS),y jsr CORE.PSSelect lda #Evt.Table sta pEvent Select first event in list lda CORE.EvtCount sta CORE.EvtIndex .2 lda (pEvent) Empty event, select next beq .3 jsr CORE.PSExec2 dec IRQ.InKernel bcs .3 not for this PS, try next event in list jsr CORE.DestroyEvent this PS handled the EVT, destroy it... lda CORE.EvtCount beq .4 no more event, exit .3 dec CORE.EvtIndex beq .4 all EVT submitted to this PS, try other PS lda pEvent try next EVT to this PS clc adc #S.EVT sta pEvent bra .2 .4 ldy #S.PS.S lda #S.PS.S.RUN sta (pPS),y jsr CORE.PSLeave .5 inc CORE.PSIndex ldx CORE.PSIndex cpx CORE.PSCount bne .1 * sec rts *-------------------------------------- * X unmodified *-------------------------------------- CORE.GetPSByID jsr CORE.GetPS bcs CORE.GetPS.RTS lda PS.TABLE.hPS,y jmp K.GetMemPtr *-------------------------------------- * X,A unmodified *-------------------------------------- CORE.GetPS tay beq CORE.GetPS.8 PS0 requested ldy #0 bra .2 Skip PS0 .1 cmp PS.Table.PID,y beq CORE.GetPS.8 .2 iny cpy CORE.PSCount bne .1 .9 lda #E.NSP * sec rts CORE.GetPS.8 clc CORE.GetPS.RTS rts *-------------------------------------- *CORE.DumpEvent ldy #S.EVT-1 *.1 >PUSHB (pEvent),y * dey * bpl .1 * >LDYAI .2 * jmp K.printf *.2 .AZ "!Evt:F=%b,Dev=$%h,LO=$%h,HI=$%h,W1=$%H,W2=$%H\n" *-------------------------------------- CORE.DestroyEvent lda (pEvent) beq .9 bit #S.EVT.F.hMEM1 beq .1 pha ldy #S.EVT.B1 lda (pEvent),y jsr K.FreeMem pla .1 bit #S.EVT.F.hMEM2 beq .2 ldy #S.EVT.B2 lda (pEvent),y jsr K.FreeMem .2 lda #0 sta (pEvent) dec CORE.EvtCount .9 rts *-------------------------------------- CORE.PSSelect ldy #S.PS.ZP.CODE+PSCTX.SIZE-1 ldx #PSCTX.SIZE-1 .1 lda (pPS),y sta pCode,x dey dex bpl .1 rts *-------------------------------------- CORE.PSLeave ldx #PSCTX.SIZE-1 ldy #S.PS.ZP.CODE+PSCTX.SIZE-1 .1 lda pCode,x sta (pPS),y dey dex bpl .1 rts *-------------------------------------- CORE.PSExec lda (pPS) bit #S.PS.F.SLEEP bne CORE.PSResume CORE.PSExec2 ldy #S.PS.S lda (pPS),y tax lda pCode+1 pha lda pCode pha php sei inc IRQ.InKernel rti *-------------------------------------- CORE.PSResume sei eor #S.PS.F.SLEEP unmark as SLEEP sta (pPS) >PULLA Get !BC tax beq .2 .1 >PULLA pha inx bne .1 .2 ldy #S.PS.PC+1 lda (pPS),y pha dey #S.PS.PC lda (pPS),y pha dey #S.PS.P lda (pPS),y pha dey #S.PS.Y lda (pPS),y pha dey #S.PS.X lda (pPS),y tax dey #S.PS.A lda (pPS),y ply inc IRQ.InKernel rti *-------------------------------------- GP.RomCall.JmpX jmp (.1-FPU.FADD,x) *-------------------------------------- * http://www.txbobsc.com/scsc/scdocumentor/E7A0.html *-------------------------------------- .1 .DA $E7C1 FADDT .DA $E7AA FSUBT .DA $E987 FMULTT.1 .DA $EA6B FDIVT+2 .DA $EE97 FPWRT .DA $E941 LOG .DA $EE8D SQR .DA $EF09 EXP .DA $EFEA COS .DA $EFF1 SIN .DA $F03A TAN .DA $F09E ATN *-------------------------------------- .DA $E9E3 LOAD.ARG.FROM.YA .DA $EAF9 LOAD.FAC.FROM.YA .DA $EB27 SETFOR (GETFAC) .DA $EBB2 FCOMP (Y,A with FAC) .DA $E82E NORMALIZE.FAC.2 (L->F) .DA $EBF2 QINT (F->L) .DA $EC4A FIN AToF .DA $ED36 FOUT.1 PrintF *-------------------------------------- CORE.VBLState .BS 1 CORE.IRQMode .BS 1 CORE.TickPerSec .BS 1 CORE.TickPer10t .BS 1 CORE.TickSec .BS 1 CORE.Tick10t .BS 1 CORE.CPUStatCnt .DA #100 CORE.LastPSID .DA #0 CORE.FSID .BS 1 *-------------------------------------- CORE.EvtIndex .BS 1 CORE.EvtCount .BS 1 *-------------------------------------- IRQ.InKernel .BS 1 IRQ.InLib .BS 1 IRQ.SkipA2osX .BS 1 IRQ.IntNum .BS 1 IRQ.VBL.n0 .BS 1 IRQ.VBL.0n .BS 1 IRQ.Mode .BS 1 IRQ.Tick .BS 1 *-------------------------------------- MAN SAVE USR/SRC/SYS/KERNEL.S.CORE LOAD USR/SRC/SYS/KERNEL.S ASM