NEW AUTO 3,1 *-------------------------------------- * SYSCALL (AUXLC to AUXLC) * Used by user & kernel for inter bank Calls * In: * X = SYSfnc.Index * Y,A = free for Inline param *-------------------------------------- jmp GP.SysCall *-------------------------------------- * LIBCALL (AUXLC to AUXLC) * Used by user * In: * Y = LIB.ID * X = LIBfnc.Index * A = free for Inline param *-------------------------------------- jmp GP.LibCall *-------------------------------------- * AppleTalk MLICALL (AUXLC to MAINLC) * Used by user * In: * Y,A = Params *-------------------------------------- jmp GP.AtkCall *-------------------------------------- * ROMCALL (AUXLC to ROMLC) * Used by Kernel * In: * X = ROM Function * Y,A = Param *-------------------------------------- jmp GP.FpuCall *-------------------------------------- * BADCALL *-------------------------------------- lda #MLI.E.BADCALL sec rts *-------------------------------------- * SLEEP *-------------------------------------- GP.Sleep php sei phy ldy #S.PS.A sta (pPS),y txa iny #S.PS.X sta (pPS),y pla iny #S.PS.Y sta (pPS),y pla iny #S.PS.P sta (pPS),y pla get PC LO plx get PC HI inc Advance one byte because of return by RTI bne GP.Sleep2 inx GP.Sleep2 ldy #S.PS.PC sta (pPS),y txa iny #S.PS.PC+1 sta (pPS),y tsx inx inx keep PC HI,LO from KERNEL jsr PSExec/PSResume inx Stack Ptr is $1ff if empty txa beq .3 tay Save !Byte count for later .2 pla >PUSHA inx bne .2 tya .3 >PUSHA push CPU Stack BC to restore on top of Soft Stack inc $1fe PC=PC+1 bne .4 inc $1ff because of RTI .4 lda (pPS) ora #S.PS.F.SLEEP sta (pPS) lda #0 cld,clc,cli pha rti exit to kernel with CC *-------------------------------------- * *** MUST BE REINTRANT *** *-------------------------------------- GP.SysCall dec IRQ.InKernel pha phy ldy #S.PS.A sta (pPS),y txa iny #S.PS.X sta (pPS),y pla iny #S.PS.Y sta (pPS),y tay pla jsr K.SYSCALL2 bcc .2 no error quit... tax CS,A=0 ? beq .3 Yes, BLOCKING I/O .2 inc IRQ.InKernel rts Unmodified Carry .3 sei inc IRQ.InKernel GO.Sleep2 pla get PC LO plx get PC HI * sec sbc #2 bcs GP.Sleep2 dex .1 bra GP.Sleep2 *-------------------------------------- GP.LibCall dec IRQ.InLib pha phy ldy #S.PS.A sta (pPS),y txa iny #S.PS.X sta (pPS),y pla iny #S.PS.Y sta (pPS),y jsr K.GetMemPtr Get LIB Code Segment (MemMgr in $E000, no BNK change) >STYA .1+1 pla .1 jsr $FFFF SELF MODIFIED bcc .2 tax beq .3 .2 inc IRQ.InLib rts .3 sei inc IRQ.InLib bra GO.Sleep2 *-------------------------------------- GP.AtkCall dec IRQ.InKernel >STYA .1 jsr GO.ProDOS jsr MLI .DA #MLIATALK .1 .DA * jsr GO.A2osX inc IRQ.InKernel rts */-------------------------------------- * # Add32,Sub32,Mul32,IMul32,Div32,IDiv32,Mod32,IMod32,Cmp32,ICmp32 * Return X+Y, X-Y, X*Y, X/Y, X mod Y.... * ## ASM * `>PUSHL X (long)` * `>PUSHL Y (long)` * `>FPU add32` * `...` * ## RETURN VALUE * On stack (long) *\-------------------------------------- GP.FpuCall dec IRQ.InKernel cpx #FPU.FMUL bcs .1 jsr MATH math16 & math32, direct JMP inc IRQ.InKernel rts .1 phx jsr GP.SetFAC Get float from stack plx cpx #FPU.PWR+1 bcs GP.GetFAC */-------------------------------------- * # FAdd,FSub,FMul,FDiv,FPwr * Return X*Y, X/Y, X+Y, X-Y * ## C * `float pwr ( float x, float y);` * ## ASM * `>PUSHF X (float)` * `>PUSHF Y (float)` * `>FPU fmul` * `>FPU fdiv` * `>FPU fmod` TODO * `>FPU fadd` * `>FPU fsub` * `>FPU fpwr` * ## RETURN VALUE * On stack (float) *\-------------------------------------- lda pStack clc adc #5 sta pStack phx jsr GP.SetARG plx */-------------------------------------- * # Log,Sqr,Exp,Cos,Sin,Tan,ATan * Return Log(x), Sqr(x), E^X, Cos(x), Sin(X), Tan(x), ATan(x) * ## C * `float log ( float x);` * `float sqr ( float x);` * `float exp ( float x);` * `float cos ( float x);` * `float sin ( float x);` * `float tan ( float x);` * `float atan ( float x);` * ## ASM * `>PUSHF x (Float)` * `>FPU log` * ## RETURN VALUE * On stack (Float) *\-------------------------------------- GP.GetFAC jsr GP.ROMCALL lda pStack ldy pStack+1 sta FORPNT Ptr to dst buffer sty FORPNT+1 ldx #FPU.GETFAC *-------------------------------------- GP.RomCall phx ldx $D000 stx .8+1 bit RROMBNK1 plx jsr MATHF .8 ldx #$ff bit $C000,x bit $C000,x rts *-------------------------------------- GP.SetARG ldx #FPU.SETARG .HS 2C BIT ABS GP.SetFAC ldx #FPU.SETFAC lda pStack ldy pStack+1 bra GP.RomCall */-------------------------------------- * # float * Return 'floated' long * ## C * `float f = (float)l; * ## ASM * `>PUSHL l` (long) * `>FPU float` * ## RETURN VALUE * On stack (float) *\-------------------------------------- GP.Float ldy #3 .1 lda (pStack),y sta FAC+1,y Reverse Order dey bpl .1 dec pStack keep 5 bytes on stack stz FAC.SIGN lda #$80+32 sta FAC Positive + Exp=32 ldx #FPU.LTOF bra GP.GetFAC */-------------------------------------- * # lrintf * Return float rounded into a long * ## C * `long int lrintf (float x);` * ## ASM * `>PUSHF x` * `>FPU lrintf` * ## RETURN VALUE * On stack (long) *\-------------------------------------- GP.lrintf jsr GP.SetFAC inc pStack keep 4 bytes on stack ldx #FPU.QINT jsr GP.ROMCALL ldy #3 .1 lda FAC+1,y sta (pStack),y dey bpl .1 rts *-------------------------------------- * MLI : From Kernel Aux LC to Main LC *-------------------------------------- GP.MLICall stx .1 sta K.MLI.PARAMS jsr GO.ProDOS jsr MLI .1 .BS 1 .DA K.MLI.PARAMS jsr GO.A2osX rts *-------------------------------------- GO.ProDOS pha lda $D000 We re coming from AUXLC, saving bank... sta GO.A2osX.BNK+1 pla php clc .HS 2C bit abs GO.A2osX php sec sei sta GO.EXIT.SaveA+1 stx GO.EXIT.SaveX+1 sty GO.EXIT.SaveY+1 pla Restore P in A for later plx Get PC and add 1 for return ply inx bne .1 iny .1 stx GO.EXIT.JMP+1 sty GO.EXIT.JMP+2 bcs GO.A2osX.BNK if CS, go AUXLC bit RRAMWRAMBNK1 Go MAINLC (ProDOS), always BNK1 * bit RRAMWRAMBNK1 tsx stx SaveSX ldx SaveSM txs sta CLRALTZP bra GO.EXIT GO.A2osX.BNK ldx #RRAMWRAMBNK1 Self Modified, initialized to BNK1 for INIT3 bit $C000,x * bit $C000,x sta SETALTZP tsx stx SaveSM ldx SaveSX txs *-------------------------------------- GO.EXIT pha push P on stack GO.EXIT.SaveY ldy #$ff GO.EXIT.SaveX ldx #$ff GO.EXIT.SaveA lda #$ff plp GO.EXIT.JMP jmp $FFFF SELF MODIFIED *-------------------------------------- * Called from ProDOS IRQ Manager (LCBNK1) * A,X,Y, $FA->$FF Already Saved * Main RAM,ZP/LC selected * must begin with CLD * must exit with RTS * - CC if IRQ cleared, CS if NOT *-------------------------------------- GP.IRQ cld bit IRQ.Skip After A2osX IRQ.H ? bmi GP.IRQ.Exit sta SETALTZP switch to aux LC tsx stx SaveSM ldx SaveSX txs GP.IRQ.JSR jsr CORE.IRQ.DEV SELF MODIFIED tsx go back to Main stx SaveSX ldx SaveSM txs sta CLRALTZP rts GP.IRQ.Exit stz IRQ.Skip reset flag sec rts *-------------------------------------- *GO.Reset jsr GO.A2osX * jmp CORE.Run *-------------------------------------- *BrkHandler bra * *-------------------------------------- * $11D0->$11EF : Public Variables *-------------------------------------- .BS 32 *-------------------------------------- * $11F0->$11FF : Kernel Config Block *-------------------------------------- .DA #6 A2osX.HZ=60hz .DA #2 A2osX.TTYDEVS=2 .HS 000000000000 .DA #0 ChRoot/Preemptive Disabled .HS 00000000000000 All Slots marked as "Free" *-------------------------------------- MAN SAVE usr/src/sys/kernel.s.gp LOAD usr/src/sys/kernel.s ASM