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Modified NSC driver for use with Ultrawarp
This commit is contained in:
Bobbi Webber-Manners
parent
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40
No_Slot_Clock/README.md
Normal file
40
No_Slot_Clock/README.md
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@ -0,0 +1,40 @@
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#`NS.CLOCK.SYSTEM`
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##No Slot Clock Driver for ProDOS
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`nsc.s` is the original No Slot Clock driver written by SMT, which has been
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disassembled and commented by Github user mgcaret. I took it from [here]
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(https://gist.github.com/mgcaret/ae2860c754fd029d2640107c4fe0bffd).
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The RM Ultrawarp Apple II accelerator card has some sort of bug in the
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banking of ROMs. As a result of this problem, the original `NS.CLOCK.SYSTEM`
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does not work on a system with Ultrawarp, unless the accelerator card is
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completely disabled. The symptom is that the NSC is detected and the ProDOS
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driver is installed, but the time returned is all zeroes. It does not appear
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to be a problem related to the 13MHz clock speed of the Ultrawarp accelerator
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because it also manifests if the Ultrawarp is active but with 1MHz clock.
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`nsc_ultrawarp.s` is a modified version of nsc.s which includes a workaround
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for this problem. It has the following differences compared to `nsc.s`:
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- The original code searches for an NSC installed under peripheral card
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ROMs in each of the Apple II slots, and only then searches for a NSC
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installed in the normal place, which is underneath the CE or CX ROM on
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an Apple //e, or the Monitor ROM on an original Apple II or plus. I
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removed the search through the slots, and now only look for an NSC
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installed under the CE/CX ROM or Monitor ROM.
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- In the original code, the driver code itself is modified in place to
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work with the NSC in the location where it was detected. This is no
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longer required, so I removed the self-modifying code. This makes the
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code easier to read, and also makes the clock driver a few bytes shorter,
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which is critical, as there was no space to add any additional code.
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- Added an additional instruction `LDA $C00B` at the beginning of the clock
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driver. This causes the driver to work properly with the Ultrawarp
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active, either at full speed (13MHz) or 1MHz. The reason adding this one
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read fixes the erroneous behaviour is not well understood. It seems that
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the additional instruction causes the CE/CX ROM to be banked in. Without
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this extra instruction, it seems the ROM was not banked in when running
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with the Ultrawarp. This appears to be a hardware bug in the Ultrawarp.
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Bobbi
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May 29, 2021
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5
No_Slot_Clock/build_nsc
Executable file
5
No_Slot_Clock/build_nsc
Executable file
@ -0,0 +1,5 @@
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ca65 nsc_ultrawarp.s
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ld65 nsc_ultrawarp.o -t none -o ns.clock.system\#ff0000
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cadius createvolume nsc_ultrawarp.po NSC.UW 140KB
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cadius addfile nsc_ultrawarp.po /NSC.UW ns.clock.system\#ff0000
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scp nsc_ultrawarp.po pi@pi-eth:~/virtual-1.po
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@ -565,6 +565,7 @@ MyName: .byte $0F,"NS.CLOCK.SYSTEM" ; overwritten in the usual case
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ClockDrv:
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php
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sei
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lda $C00B ; Workaround for Ultrawarp bug
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lda C8OFF
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CDRdSwL = * - 2 ; may modify to read INTCXROM state
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CDRdSwH = * - 1
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@ -597,27 +598,28 @@ CDUnlck = * - 1 ; may be patched to a different
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bne ubytlp
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ldx #$08 ; loop counter to read 8 bytes of clock data
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rbytlp: ldy #$08 ; loop counter to read 8 bits of clock data
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rbitlp: lda SLOT3ROM+$04 ; get data bit (NSC clocks reads off of A2)
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rbitlp: pha
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lda SLOT3ROM+$04 ; get data bit (NSC clocks reads off of A2)
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CDRdClk = * - 1 ; may be patched for different loc
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ror a ; put into carry
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ror INBUF-1,x ; and then rotate into relative input buffer loc
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pla
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ror a ; then rotate into relative i/p buffer loc
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dey
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bne rbitlp ; next bit
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lda INBUF-1,x ; now BCD->Binary
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pha ; now BCD->Binary
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lsr a
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lsr a
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lsr a
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lsr a
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tay
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beq notens ; no tens digit
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lda INBUF-1,x
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pla
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and #$0F
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clc ; repeated addition for tens
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: adc #$0A
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dey
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: dey
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bmi notens ; no tens digit
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adc #$0A
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bne :-
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sta INBUF-1,X ; update value to binary equiv
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notens: dex
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notens: sta INBUF-1,X ; update value to binary equiv
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bne rbytlp ; next byte
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; put values into ProDOS time locations
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lda INBUF+4
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BIN
No_Slot_Clock/nsc_ultrawarp.po
Normal file
BIN
No_Slot_Clock/nsc_ultrawarp.po
Normal file
Binary file not shown.
790
No_Slot_Clock/nsc_ultrawarp.s
Normal file
790
No_Slot_Clock/nsc_ultrawarp.s
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@ -0,0 +1,790 @@
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; Fully disassembled and analyzed source to SMT
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; NS.CLOCK.SYSTEM by M.G. - 04/20/2017
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; Assembles to a binary match for SMT code if
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; IncludeJunk is set, see the .if IncludeJunk for details.
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; other notes:
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; * uses direct block access to read volume directory,
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; so won't launch from an AppleShare volume.
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; Build instructions:
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; ca65 ns.clock.system.s -l ns.clock.system.lst
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; ld65 -t none -o ns.clock.system ns.clock.system.o
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; put ns.clock.system as a SYS file on a ProDOS disk.
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.setcpu "6502"
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IncludeJunk = 0 ; original file had a bunch of garbage
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; setting this to 1 includes it
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; ----------------------------------------------------------------------------
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; Zero page
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POINTER := $A5 ; generic pointer used everywhere
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ENTNUM := $A7 ; current file entry # in block (zero-based)
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LENGTH := $A8 ; generic length byte used everywhere
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; entry points
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PRODOS := $BF00
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INIT := $FB2F
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HOME := $FC58
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CROUT := $FD8E
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PRBYTE := $FDDA
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COUT := $FDED
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SETNORM := $FE84
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SETKBD := $FE89
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SETVID := $FE93
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; buffers & other spaces
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INBUF := $0200 ; input buffer
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PATHBUF := $0280 ; path buffer
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RELOCT := $1000 ; relocation target
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BLOCKBUF := $1800 ; block & I/O buffer
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SYSEXEC := $2000 ; location of SYS executables
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SOFTEV := $03F2 ; RESET vector
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; global Page entries
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CLKENTRY := $BF06 ; clock routine entry point
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DEVNUM := $BF30 ; most recent accessed device
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MEMTABL := $BF58 ; system bitmap
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DATELO := $BF90
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DATEHI := $BF91
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TIMELO := $BF92
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TIMEHI := $BF93
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MACHID := $BF98 ; machine ID
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; I/O and hardware
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ROMIn2 := $C082 ; access to read ROM/no write LC RAM
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LCBank1 := $C08B ; Access twice to write LC bank 1
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KBD := $C000 ; keyboard
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INTCXROMOFF := $C006 ; Disable internal $C100-$CFFF ROM
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INTCXROMON := $C007 ; Enable interal $C100-$CFFF ROM
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KBDSTR := $C010 ; keyboard strobe
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INTCXROM := $C015 ; Read state of $C100-$CFFF soft switch
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CLR80VID := $C00C ; Turn off 80-column mode
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CLRALTCHAR := $C00E ; Turn off alt charset
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SLOT3ROM := $C300 ; SLOT 3 ROM
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C8OFF := $CFFF ; C8xx Slot ROM off
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; Misc
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CLKCODEMAX := $7D
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; Macro to define ASCII string with high bit set.
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.macro hasc Arg
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.repeat .strlen(Arg), I
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.byte .strat(Arg, I) | $80
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.endrep
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.endmacro
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; ----------------------------------------------------------------------------
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; relocate ourself from SYSEXEC to RELOCT
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; note that we .org the whole thing, including this routine, at the target
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; address and jump to it after the first page is relocated.
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.org RELOCT ; note code initially runs at SYSEXEC
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.proc Relocate
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sec
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bcs :+ ; skip version info
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.byte $05, $29, $21 ; version date in BCD (May 29 2021)
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: ldx #$05 ; page counter, do $0500 bytes
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ldy #$00 ; byte counter
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from: lda SYSEXEC,y ; start location
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to: sta RELOCT,y ; end location
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iny ; next byte offset
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bne from ; if not zero, copy byte
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inc from+2 ; otherwise increment source address high byte
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inc to+2 ; and destination address high byte
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dex ; dec page counter
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beq Main ; when done start main code
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jmp from ; live jump... into relocated code after first page loop
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.endproc
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; ----------------------------------------------------------------------------
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.proc Main
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; figure out length of our name and stick in LENGTH
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lda #$00
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sta LENGTH ; zero length
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ldx PATHBUF ; length pf path
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beq Main1 ; skip if length = 0 (no path)
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: inc LENGTH ; length += 1 for each non-/
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dex ; previous char in path
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beq CopyNm ; nothing left? Copy our name.
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lda PATHBUF,x ; get character
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; check for /... kinda wtf, as cmp #$2f would work...
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eor #$2F ; roundabout check for '/'
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asl a ; upper/lower case
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bne :- ; keep examining if not '/'
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; now save our name (assuming we weren't lied to)
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CopyNm: ldy #$00 ; init destination offset
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: iny ; increment destination offset
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inx ; inc source offset
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lda PATHBUF,x ; get source char
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sta MyName,y ; write to save location
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cpy LENGTH ; got it all?
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bcc :- ; nope, copy more
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sty MyName ; save length
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; done moving stuff
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Main1: cld
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bit ROMIn2 ; make sure ROM enabled
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; letter of the law with RESET vector
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lda #<Main1
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sta SOFTEV
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lda #>Main1
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sta SOFTEV+1
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eor #$A5
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sta SOFTEV+2
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lda #$95 ; control code
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jsr COUT ; to quit 80-column firmware
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ldx #$FF ; reset
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txs ; stack pointer
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; get video & keyboard I/O to known state
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sta CLR80VID
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sta CLRALTCHAR
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jsr SETVID
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jsr SETKBD
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jsr SETNORM
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jsr INIT
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; initialize memory map
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ldx #$17 ; there are $18 bytes total
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lda #$01 ; last byte gets $01 (protect global page)
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: sta MEMTABL,x
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lda #$00 ; all but first byte get $00 (no protection)
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dex
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bne :-
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lda #$CF ; first byte protect ZP, stack, text page 1
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sta MEMTABL
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lda MACHID
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and #$88 ; mask in bits indicating machine with lower case
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bne :+ ; has lower case, skip over next few instructions
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lda #$DF ; mask value
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sta CaseCv ; to make print routine convert to upper case
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: lda MACHID
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and #$01 ; mask in clock bit
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beq FindClock ; no clock yet, proceed
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jsr HOME
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jsr iprint
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.byte $8D ; CR
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hasc "Previous Clock Installed!"
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.byte $87,$8D,$00 ; BELL, CR, done
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jmp NextSys
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.endproc
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; go hunting for clock
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.proc FindClock
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ldy #$03 ; save old date and time
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: lda DATELO,y ; because we are going to overwrite
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sta DTSave,y ; during our probes
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dey
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bpl :-
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jmp InstallDriver
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.endproc
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.proc NoClock
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ldy #$03 ; restore old date/time because
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: lda DTSave,y ; we didn't find clock anywhere
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sta DATELO,y
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dey
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bpl :-
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jsr HOME
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jsr iprint
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.byte $8D
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hasc "No-Slot Clock Not Found." ; typo in original fixed
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.byte $8D, $8D
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hasc "Clock Not Installed!"
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.byte $87, $8D, $00
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; launch next .system file
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jmp NextSys
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.endproc
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DTSave: .byte $00,$00,$00,$00 ; Saved ProDOS Date/Time values
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; install driver, this does it the right way and looks at the vector
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; and puts the driver there
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.proc InstallDriver
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; this code corrects reference to DS121x unlock sequence
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lda CLKENTRY+1
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sta POINTER
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clc
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adc #(DSUnlk-ClockDrv)
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sta CDULSqL
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lda CLKENTRY+2
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sta POINTER+1
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adc #$00
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sta CDULSqH
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; done correcting
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lda LCBank1 ; make LC RAM writable
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lda LCBank1
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ldy #DrvSize ; copy driver
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: lda ClockDrv,y
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sta (POINTER),y
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dey
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bpl :-
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lda MACHID ; current MACHID
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ora #$01 ; set clock installed bit
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sta MACHID ; and put back
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lda #$4C ; JMP
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sta CLKENTRY ; into clock driver entry point
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jsr CLKENTRY ; may as well give it a whirl
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bit ROMIn2 ; LC write protect
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jsr HOME
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jsr iprint
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.byte $8d
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hasc "No-Slot Clock Installed "
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.byte $00
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; print today's date
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lda DATEHI
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ror a
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pha
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lda DATELO
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pha
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rol a
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rol a
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rol a
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rol a
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and #$0F
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jsr PrDec
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lda #$AF
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jsr COUT
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pla
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and #$1F
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jsr PrDec
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lda #$AF
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jsr COUT
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pla
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jsr PrDec
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jsr CROUT
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.endproc
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; This starts the process of finding & launching next system file
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; unfortunately it also uses block reads and can't be run from an AppleShare
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; volume.
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.proc NextSys
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; set reset vector to DoQUit
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lda #<DoQuit
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sta SOFTEV
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lda #>DoQuit
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sta SOFTEV+1
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eor #$A5
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sta SOFTEV+2
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lda DEVNUM ; last unit number accessed
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sta PL_READ_BLOCK+1 ; put in parameter list
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jsr GetBlock ; get first volume directory block
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lda BLOCKBUF+$23 ; get entry_length
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sta SMENTL ; modify code
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lda BLOCKBUF+$24 ; get entries_per_block
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sta SMEPB ; modify code
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lda #$01 ;
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sta ENTNUM ; init current entry number as second (from 0)
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lda #<(BLOCKBUF+$2B) ; set pointer to that entry
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sta POINTER ; making assumptions as we go
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lda #>(BLOCKBUF+$2B)
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sta POINTER+1
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; loop to examine file entries...
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FEntLp: ldy #$10 ; offset of file_type
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lda (POINTER),y
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cmp #$FF ; SYS?
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bne NxtEnt ; nope..
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ldy #$00 ; offset of storage_type & name_length
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lda (POINTER),y
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and #$30 ; mask interesting bits of storage_type
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beq NxtEnt ; if not 1-3 (standard file organizations)
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lda (POINTER),y ; get storage_type and name_length again
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and #$0F ; mask in name_length
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sta LENGTH ; save for later
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tay ; and use as index for comparison
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; comparison loop
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ldx #$06 ; counter for size of ".SYSTEM"
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: lda (POINTER),y ; get file name byte
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cmp system,x ; compare to ".SYSTEM"
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bne NxtEnt ; no match
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dey
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dex
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bpl :-
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; if we got here, have ".SYSTEM" file
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ldy MyName ; length of our own file name
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cpy LENGTH ; matches?
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bne CkExec ; nope, see if we should exec
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; loop to check if this is our own name
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: lda (POINTER),y
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cmp MyName,y
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bne CkExec ; no match, see if we should exec
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dey
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bne :-
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; if we got here, we have found our own self
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sec
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ror FdSelf ; flag it
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; go to next entry
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NxtEnt: lda POINTER ; low byte of entry pointer
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clc ; ready for addition
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adc #$27 ; add entry length that is
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SMENTL = * - 1 ; self-modifed
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sta POINTER ; save it
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bcc :+ ; no need to do high byte if no carry
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inc POINTER+1 ; only increment if carry
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: inc ENTNUM ; next entry number
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lda ENTNUM ; and get it
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cmp #$0D ; check against number of entries that is
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SMEPB = * - 1 ; self-modified
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bcc FEntLp ; back to main search if not done with this block
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lda BLOCKBUF+$02 ; update PL_BLOCK_READ for next directory block
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sta PL_READ_BLOCK+4
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lda BLOCKBUF+$03
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sta PL_READ_BLOCK+5
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ora PL_READ_BLOCK+4 ; see if pointer is $00
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beq NoSys ; error if we hit the end and found nothing..
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jsr GetBlock ; get next volume directory block
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lda #$00
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sta ENTNUM ; update current entry number
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lda #<(BLOCKBUF+$04) ; and reset pointer
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sta POINTER
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lda #>(BLOCKBUF+$04)
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sta POINTER+1
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jmp FEntLp ; go back to main loop
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CkExec: bit FdSelf ; did we find our own name yet?
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bpl NxtEnt ; nope... go to next entry
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ldx PATHBUF ; get length of path in path buffer
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beq CpyNam ; skip looking for / if zero
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: dex ;
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beq CpyNam ; done if zero
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lda PATHBUF,x ;
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||||
eor #$2F ; is '/'?
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asl a ; in roundabout way
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bne :- ; no slash
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; copy file name onto path, x already has position
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CpyNam: ldy #$00
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: iny ; next source byte offset
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inx ; next dest byte offset
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lda (POINTER),y ; get filename char
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||||
sta PATHBUF,x ; put in path
|
||||
cpy LENGTH ; copied all the chars?
|
||||
bcc :- ; nope
|
||||
stx PATHBUF ; update length of path
|
||||
jmp LaunchSys ; try to launch it!
|
||||
NoSys: jsr iprint
|
||||
.byte $8D, $8D, $8D
|
||||
hasc "* Unable to find next '.SYSTEM' file *"
|
||||
.byte $8D, $00
|
||||
; wait for keyboard then quit to ProDOS
|
||||
bit KBDSTR
|
||||
: lda KBD
|
||||
bpl :-
|
||||
bit KBDSTR
|
||||
jmp DoQuit
|
||||
.endproc
|
||||
; ----------------------------------------------------------------------------
|
||||
; inline print routine
|
||||
; print chars after JSR until $00 encountered
|
||||
; converts case via CaseCv ($FF = no conversion, $DF = to upper)
|
||||
.proc iprint
|
||||
pla
|
||||
sta POINTER
|
||||
pla
|
||||
sta POINTER+1
|
||||
bne next
|
||||
: cmp #$E1
|
||||
bcc noconv
|
||||
and CaseCv
|
||||
noconv: jsr COUT
|
||||
next: inc POINTER
|
||||
bne nohi
|
||||
inc POINTER+1
|
||||
nohi: ldy #$00
|
||||
lda (POINTER),y
|
||||
bne :-
|
||||
lda POINTER+1
|
||||
pha
|
||||
lda POINTER
|
||||
pha
|
||||
rts
|
||||
.endproc
|
||||
; ----------------------------------------------------------------------------
|
||||
; print one or two decimal digits
|
||||
.proc PrDec
|
||||
ldx #$B0 ; tens digit
|
||||
cmp #$0A
|
||||
bcc onedig
|
||||
: sbc #$0A ; repeated subtraction, carry is already set
|
||||
inx
|
||||
cmp #$0A ; less than 10 yet?
|
||||
bcs :- ; nope
|
||||
onedig: pha
|
||||
cpx #$B0
|
||||
beq nozero ; skip printing leading zero
|
||||
txa
|
||||
jsr COUT
|
||||
nozero: pla
|
||||
ora #$B0
|
||||
jsr COUT
|
||||
rts
|
||||
.endproc
|
||||
CaseCv: .byte $FF ; default case conversion byte = none
|
||||
; ----------------------------------------------------------------------------
|
||||
.proc DoQuit
|
||||
jsr PRODOS
|
||||
.byte $65 ; MLI QUIT
|
||||
.word PL_QUIT
|
||||
brk ; crash into monitor if QUIT fails
|
||||
rts ; (!) if that doesn't work, go back to caller
|
||||
PL_QUIT:
|
||||
.byte $04 ; param count
|
||||
.byte $00 ; quit type - $00 is only type
|
||||
.word $0000 ; reserved
|
||||
.byte $00 ; reserved
|
||||
.word $0000 ; reserved
|
||||
.endproc
|
||||
.proc GetBlock
|
||||
jsr PRODOS
|
||||
.byte $80 ; READ_BLOCK
|
||||
.word PL_READ_BLOCK
|
||||
bcs LaunchFail
|
||||
rts
|
||||
.endproc
|
||||
PL_READ_BLOCK:
|
||||
.byte $03
|
||||
.byte $60 ; unit number
|
||||
.word BLOCKBUF
|
||||
.word $0002 ; first volume directory block
|
||||
; ----------------------------------------------------------------------------
|
||||
; launch next .SYSTEM file
|
||||
.proc LaunchSys
|
||||
jsr PRODOS
|
||||
.byte $C8 ; OPEN
|
||||
.word PL_OPEN
|
||||
bcs LaunchFail
|
||||
lda PL_OPEN+$05 ; copy ref number
|
||||
sta PL_READ+$01 ; into READ parameter list
|
||||
jsr PRODOS
|
||||
.byte $CA ; READ
|
||||
.word PL_READ
|
||||
bcs LaunchFail
|
||||
; bug the first: Close should be done every time the OPEN call is successful
|
||||
; but only done when the READ succeeds
|
||||
; bug the second: Others may not consider this a bug, but we close all open
|
||||
; files, even if we didn't open them. That's not very polite.
|
||||
jsr PRODOS
|
||||
.byte $CC ; CLOSE
|
||||
.word PL_CLOSE
|
||||
bcs LaunchFail
|
||||
jmp SYSEXEC
|
||||
.endproc
|
||||
; ----------------------------------------------------------------------------
|
||||
; failed to launch next .SYSTEM file
|
||||
.proc LaunchFail
|
||||
pha
|
||||
jsr iprint
|
||||
.byte $8D, $8D, $8D
|
||||
hasc "** Disk Error $"
|
||||
.byte $00
|
||||
pla
|
||||
jsr PRBYTE
|
||||
jsr iprint
|
||||
hasc " **"
|
||||
.byte $8D, $00
|
||||
; wait for keyboard, then quit to ProDOS
|
||||
bit KBDSTR
|
||||
: lda KBD
|
||||
bpl :-
|
||||
bit KBDSTR
|
||||
jmp DoQuit
|
||||
.endproc
|
||||
; ----------------------------------------------------------------------------
|
||||
PL_OPEN:
|
||||
.byte $03
|
||||
.word PATHBUF
|
||||
.word BLOCKBUF
|
||||
.byte $01 ; ref num (default 1 wtf?)
|
||||
PL_READ:
|
||||
.byte $04
|
||||
.byte $01 ; ref num
|
||||
.word SYSEXEC ; data buffer
|
||||
.word $FFFF ; request count
|
||||
.word $0000 ; transfer count
|
||||
PL_CLOSE:
|
||||
.byte $01
|
||||
.byte $00 ; ref num $00 = all files
|
||||
; ----------------------------------------------------------------------------
|
||||
FdSelf: .byte $00 ; bit 7 set if we found our name in volume dir
|
||||
system: .byte ".SYSTEM"
|
||||
MyName: .byte $0F,"NS.CLOCK.SYSTEM" ; overwritten in the usual case
|
||||
; actual clock driver follows
|
||||
ClockDrv:
|
||||
php
|
||||
sei
|
||||
lda $C00B ; Workaround for Ultrawarp bug - Bobbi
|
||||
lda $CFFF
|
||||
pha
|
||||
sta $C300
|
||||
lda $C304
|
||||
ldx #$08
|
||||
ubytlp: lda DSUnlk,X
|
||||
CDULSqL = * - 2 ; to be patched later when relocated into ProDOS
|
||||
CDULSqH = * - 1
|
||||
sec ; bit 7 of a is going to be set
|
||||
ror a ; first bit in byte of unlock seq in carry & b7 = 1
|
||||
ubitlp: pha ; remaining bits are in a, so save it
|
||||
lda #$00
|
||||
rol a ; move unlock bit into low bit
|
||||
tay ; put into y
|
||||
lda $C300,Y ; NSC looks for unlock on A0 line
|
||||
pla ; restore unlock seq in progress
|
||||
lsr a ; next bit into cary
|
||||
bne ubitlp ; do again until that 1 bit we set above rolls off
|
||||
dex ; next byte of unlock sequence
|
||||
bne ubytlp
|
||||
ldx #$08 ; loop counter to read 8 bytes of clock data
|
||||
rbytlp: ldy #$08 ; loop counter to read 8 bits of clock data
|
||||
rbitlp: lda $C304 ; get data bit (NSC clocks reads off of A2)
|
||||
ror a ; put into carry
|
||||
ror INBUF-1,x ; and then rotate into relative input buffer loc
|
||||
dey
|
||||
bne rbitlp ; next bit
|
||||
lda INBUF-1,x ; now BCD->Binary
|
||||
lsr a
|
||||
lsr a
|
||||
lsr a
|
||||
lsr a
|
||||
tay
|
||||
beq notens ; no tens digit
|
||||
lda INBUF-1,x
|
||||
and #$0F
|
||||
clc ; repeated addition for tens
|
||||
: adc #$0A
|
||||
dey
|
||||
bne :-
|
||||
sta INBUF-1,X ; update value to binary equiv
|
||||
notens: dex
|
||||
bne rbytlp ; next byte
|
||||
; put values into ProDOS time locations
|
||||
lda INBUF+4
|
||||
sta TIMEHI
|
||||
lda INBUF+5
|
||||
sta TIMELO
|
||||
lda INBUF+1
|
||||
asl a
|
||||
asl a
|
||||
asl a
|
||||
asl a
|
||||
asl a
|
||||
ora INBUF+2
|
||||
sta DATELO
|
||||
lda INBUF
|
||||
rol a
|
||||
sta DATEHI
|
||||
pla
|
||||
;;bmi :+
|
||||
;;sta INTCXROMOFF
|
||||
: plp
|
||||
rts
|
||||
; Dallas unlock sequence
|
||||
DSUnlk = * - 1
|
||||
.byte $5C, $A3, $3A, $C5, $5C, $A3, $3A, $C5
|
||||
DrvSize = * - ClockDrv
|
||||
.assert DrvSize < CLKCODEMAX, error, "NS CLOCK driver too big"
|
||||
|
||||
; ----------------------------------------------------------------------------
|
||||
; the rest of this looks like junk that was accidentally saved with the file
|
||||
; there are no references from the previous code. Didn't feel like disassembling.
|
||||
|
||||
.if IncludeJunk
|
||||
.setcpu "6502"
|
||||
|
||||
BASWARM := $D43F ; warm start BASIC
|
||||
FNDLIN := $D61A ; BASIC search for line
|
||||
SETPTRS := $D665
|
||||
L008D := $008D
|
||||
L0EA1 := $0EA1
|
||||
L161F := $161F
|
||||
L2020 := $2020
|
||||
L434F := $434F
|
||||
L522F := $522F
|
||||
L9A17 := $9A17
|
||||
LAC08 := $AC08
|
||||
LAC0D := $AC0D
|
||||
LAC1F := $AC1F
|
||||
LAC6B := $AC6B
|
||||
LAD50 := $AD50
|
||||
LAFD3 := $AFD3
|
||||
LAFD7 := $AFD7
|
||||
LB1D3 := $B1D3
|
||||
LB531 := $B531
|
||||
LBE70 := $BE70
|
||||
LFFFF := $FFFF
|
||||
|
||||
.byte $00
|
||||
stz $F5,x ; 147C 74 F5 t.
|
||||
.byte $D3 ; 147E D3 .
|
||||
adc $8DB3 ; 147F 6D B3 8D m..
|
||||
lsr $BE,x ; 1482 56 BE V.
|
||||
jmp L2020 ; 1484 4C 20 20 L
|
||||
; ----------------------------------------------------------------------------
|
||||
bbr2 $43,L14DE ; 1487 2F 43 54 /CT
|
||||
rol $2031 ; 148A 2E 31 20 .1
|
||||
sta $AE00 ; 148D 8D 00 AE ...
|
||||
lda $CABB,x ; 1490 BD BB CA ...
|
||||
stx $74 ; 1493 86 74 .t
|
||||
jsr LAC0D ; 1495 20 0D AC ..
|
||||
ldx $20A9 ; 1498 AE A9 20 ..
|
||||
bbr2 $48,L14DF ; 149B 2F 48 41 /HA
|
||||
eor ($44) ; 149E 52 44 RD
|
||||
and ($20),y ; 14A0 31 20 1
|
||||
sta $A400 ; 14A2 8D 00 A4 ...
|
||||
lda #$00 ; 14A5 A9 00 ..
|
||||
beq L14BE ; 14A7 F0 15 ..
|
||||
lda #$00 ; 14A9 A9 00 ..
|
||||
sta $BE44 ; 14AB 8D 44 BE .D.
|
||||
jsr L522F ; 14AE 20 2F 52 /R
|
||||
eor ($4D,x) ; 14B1 41 4D AM
|
||||
jsr L008D ; 14B3 20 8D 00 ..
|
||||
jsr LAC08 ; 14B6 20 08 AC ..
|
||||
bcs L150B ; 14B9 B0 50 .P
|
||||
jsr SETPTRS ; 14BB 20 65 D6 e.
|
||||
L14BE: sta $D8 ; 14BE 85 D8 ..
|
||||
jsr L0EA1 ; 14C0 20 A1 0E ..
|
||||
bbr2 $4E,L1515 ; 14C3 2F 4E 4F /NO
|
||||
rol $4C53 ; 14C6 2E 53 4C .SL
|
||||
bbr4 $54,L14FA ; 14C9 4F 54 2E OT.
|
||||
.byte $43 ; 14CC 43 C
|
||||
jmp L434F ; 14CD 4C 4F 43 LOC
|
||||
|
||||
; ----------------------------------------------------------------------------
|
||||
.byte $4B ; 14D0 4B K
|
||||
jsr L008D ; 14D1 20 8D 00 ..
|
||||
lda #$FF ; 14D4 A9 FF ..
|
||||
jsr L522F ; 14D6 20 2F 52 /R
|
||||
eor ($4D,x) ; 14D9 41 4D AM
|
||||
jsr L008D ; 14DB 20 8D 00 ..
|
||||
L14DE: .byte $76 ; 14DE 76 v
|
||||
L14DF: bbs1 $4C,L1525 ; 14DF 9F 4C 43 .LC
|
||||
tay ; 14E2 A8 .
|
||||
jsr LAC08 ; 14E3 20 08 AC ..
|
||||
bcs L150B ; 14E6 B0 23 .#
|
||||
jsr SETPTRS ; 14E8 20 65 D6 e.
|
||||
jsr L9A17 ; 14EB 20 17 9A ..
|
||||
lda #$00 ; 14EE A9 00 ..
|
||||
sta $24 ; 14F0 85 24 .$
|
||||
jmp BASWARM ; 14F2 4C 3F D4 L?.
|
||||
|
||||
; ----------------------------------------------------------------------------
|
||||
jsr LB531 ; 14F5 20 31 B5 1.
|
||||
bcs L150B ; 14F8 B0 11 ..
|
||||
L14FA: jsr LAC1F ; 14FA 20 1F AC ..
|
||||
bcs L150B ; 14FD B0 0C ..
|
||||
sty $6B ; 14FF 84 6B .k
|
||||
sty $69 ; 1501 84 69 .i
|
||||
sty $6D ; 1503 84 6D .m
|
||||
stx $6C ; 1505 86 6C .l
|
||||
stx $6A ; 1507 86 6A .j
|
||||
stx $6E ; 1509 86 6E .n
|
||||
L150B: rts ; 150B 60 `
|
||||
|
||||
; ----------------------------------------------------------------------------
|
||||
lda #$01 ; 150C A9 01 ..
|
||||
ldx #$FC ; 150E A2 FC ..
|
||||
jsr LB1D3 ; 1510 20 D3 B1 ..
|
||||
bcs L150B ; 1513 B0 F6 ..
|
||||
L1515: lda #$D1 ; 1515 A9 D1 ..
|
||||
jsr LBE70 ; 1517 20 70 BE p.
|
||||
bcs L150B ; 151A B0 EF ..
|
||||
lda $67 ; 151C A5 67 .g
|
||||
sta $BED7 ; 151E 8D D7 BE ...
|
||||
adc $BEC8 ; 1521 6D C8 BE m..
|
||||
.byte $8D ; 1524 8D .
|
||||
L1525: cli ; 1525 58 X
|
||||
ldx $68A5,y ; 1526 BE A5 68 ..h
|
||||
sta $BED8 ; 1529 8D D8 BE ...
|
||||
adc $BEC9 ; 152C 6D C9 BE m..
|
||||
sta $BE59 ; 152F 8D 59 BE .Y.
|
||||
bcs L1536 ; 1532 B0 02 ..
|
||||
cmp $74 ; 1534 C5 74 .t
|
||||
L1536: lda #$0E ; 1536 A9 0E ..
|
||||
bcs L150B ; 1538 B0 D1 ..
|
||||
ldx $BEC8 ; 153A AE C8 BE ...
|
||||
ldy $BEC9 ; 153D AC C9 BE ...
|
||||
jsr LAFD7 ; 1540 20 D7 AF ..
|
||||
bcs L150B ; 1543 B0 C6 ..
|
||||
jsr LAFD3 ; 1545 20 D3 AF ..
|
||||
bcs L150B ; 1548 B0 C1 ..
|
||||
jsr LAC6B ; 154A 20 6B AC k.
|
||||
ldx $BE59 ; 154D AE 59 BE .Y.
|
||||
ldy $BE58 ; 1550 AC 58 BE .X.
|
||||
stx $B0 ; 1553 86 B0 ..
|
||||
sty $AF ; 1555 84 AF ..
|
||||
rts ; 1557 60 `
|
||||
|
||||
; ----------------------------------------------------------------------------
|
||||
sec ; 1558 38 8
|
||||
lda $67 ; 1559 A5 67 .g
|
||||
sbc $BEB9 ; 155B ED B9 BE ...
|
||||
sta $3C ; 155E 85 3C .<
|
||||
lda $68 ; 1560 A5 68 .h
|
||||
sbc $BEBA ; 1562 ED BA BE ...
|
||||
sta $3D ; 1565 85 3D .=
|
||||
ora $3C ; 1567 05 3C .<
|
||||
clc ; 1569 18 .
|
||||
beq L15B1 ; 156A F0 45 .E
|
||||
ldx $67 ; 156C A6 67 .g
|
||||
lda $68 ; 156E A5 68 .h
|
||||
L1570: stx $3A ; 1570 86 3A .:
|
||||
sta $3B ; 1572 85 3B .;
|
||||
ldy #$01 ; 1574 A0 01 ..
|
||||
lda ($3A),y ; 1576 B1 3A .:
|
||||
dey ; 1578 88 .
|
||||
ora ($3A),y ; 1579 11 3A .:
|
||||
beq L15B1 ; 157B F0 34 .4
|
||||
lda ($3A),y ; 157D B1 3A .:
|
||||
adc $3C ; 157F 65 3C e<
|
||||
tax ; 1581 AA .
|
||||
sta ($3A),y ; 1582 91 3A .:
|
||||
iny ; 1584 C8 .
|
||||
lda ($3A),y ; 1585 B1 3A .:
|
||||
adc $3D ; 1587 65 3D e=
|
||||
sta ($3A),y ; 1589 91 3A .:
|
||||
clc ; 158B 18 .
|
||||
bcc L1570 ; 158C 90 E2 ..
|
||||
lda $BE57 ; 158E AD 57 BE .W.
|
||||
and #$08 ; 1591 29 08 ).
|
||||
clc ; 1593 18 .
|
||||
beq L15B1 ; 1594 F0 1B ..
|
||||
lda $BE68 ; 1596 AD 68 BE .h.
|
||||
sta $50 ; 1599 85 50 .P
|
||||
lda $BE69 ; 159B AD 69 BE .i.
|
||||
sta $51 ; 159E 85 51 .Q
|
||||
jsr FNDLIN ; 15A0 20 1A D6 ..
|
||||
clc ; 15A3 18 .
|
||||
lda $9B ; 15A4 A5 9B ..
|
||||
adc #$FF ; 15A6 69 FF i.
|
||||
sta $B8 ; 15A8 85 B8 ..
|
||||
lda $9C ; 15AA A5 9C ..
|
||||
adc #$FF ; 15AC 69 FF i.
|
||||
sta $B9 ; 15AE 85 B9 ..
|
||||
clc ; 15B0 18 .
|
||||
L15B1: rts ; 15B1 60 `
|
||||
|
||||
; ----------------------------------------------------------------------------
|
||||
bcc L15D6 ; 15B2 90 22 ."
|
||||
lda #$FC ; 15B4 A9 FC ..
|
||||
sta $BE6A ; 15B6 8D 6A BE .j.
|
||||
sta $BEB8 ; 15B9 8D B8 BE ...
|
||||
lda #$C3 ; 15BC A9 C3 ..
|
||||
sta $BEB7 ; 15BE 8D B7 BE ...
|
||||
lda $67 ; 15C1 A5 67 .g
|
||||
sta $BEA5 ; 15C3 8D A5 BE ...
|
||||
sta $BEB9 ; 15C6 8D B9 BE ...
|
||||
lda $68 ; 15C9 A5 68 .h
|
||||
sta $BEA6 ; 15CB 8D A6 BE ...
|
||||
sta $BEBA ; 15CE 8D BA BE ...
|
||||
jsr LAD50 ; 15D1 20 50 AD P.
|
||||
bcs L161F ; 15D4 B0 49 .I
|
||||
L15D6: lda #$02 ; 15D6 A9 02 ..
|
||||
ldx #$FC ; 15D8 A2 FC ..
|
||||
jsr LB1D3 ; 15DA 20 D3 B1 ..
|
||||
bcs L161F ; 15DD B0 40 .@
|
||||
lda $AF ; 15DF A5 AF ..
|
||||
sec ; 15E1 38 8
|
||||
sbc $67 ; 15E2 E5 67 .g
|
||||
tax ; 15E4 AA .
|
||||
sta $BEC8 ; 15E5 8D C8 BE ...
|
||||
lda $B0 ; 15E8 A5 B0 ..
|
||||
sbc $68 ; 15EA E5 68 .h
|
||||
tay ; 15EC A8 .
|
||||
sta $BEC9 ; 15ED 8D C9 BE ...
|
||||
lda #$00 ; 15F0 A9 00 ..
|
||||
sta $BECA ; 15F2 8D CA BE ...
|
||||
lda $67 ; 15F5 A5 67 .g
|
||||
sta $BED7 ; 15F7 8D D7 BE ...
|
||||
lda $68 ; 15FA A5 68 .h
|
||||
sta $BED8 ; 15FC 8D D8 BE ...
|
||||
.byte $20 ; 15FF 20
|
||||
.endif
|
||||
BIN
sortdir.po
BIN
sortdir.po
Binary file not shown.
Loading…
x
Reference in New Issue
Block a user