066e049538
Un-ignore software/asm/, software/tools/, and software/roms/ so that CI/CD builds on Jenkins can assemble Z80 ROMs, TZFS, and CP/M from source. Previously these files were only available on the dev machine. Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
554 lines
31 KiB
NASM
554 lines
31 KiB
NASM
;--------------------------------------------------------------------------------------------------------
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;-
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;- Name: tzfs_bank2.asm
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;- Created: July 2019
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;- Author(s): Philip Smart
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;- Description: Sharp MZ series tzfs (tranZPUter Filing System).
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;- Bank 2 - F000:FFFF - Help and messages
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;-
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;- This assembly language program is a branch from the original RFS written for the
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;- MZ80A_RFS upgrade board. It is adapted to work within the similar yet different
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;- environment of the tranZPUter SW which has a large RAM capacity (512K) and an
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;- I/O processor in the K64F/ZPU.
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;-
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;- Credits:
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;- Copyright: (c) 2018-2020 Philip Smart <philip.smart@net2net.org>
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;-
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;- History: May 2020 - Branch taken from RFS v2.0 and adapted for the tranZPUter SW.
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;- Dec 2020 - Updates to accommodate v1.3 of the tranZPUter SW-700 board where soft
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;- CPU's now become possible.
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;-
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;--------------------------------------------------------------------------------------------------------
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;- This source file is free software: you can redistribute it and-or modify
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;- it under the terms of the GNU General Public License as published
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;- by the Free Software Foundation, either version 3 of the License, or
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;- (at your option) any later version.
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;-
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;- This source file is distributed in the hope that it will be useful,
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;- but WITHOUT ANY WARRANTY; without even the implied warranty of
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;- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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;- GNU General Public License for more details.
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;-
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;- You should have received a copy of the GNU General Public License
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;- along with this program. If not, see <http://www.gnu.org/licenses/>.
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;--------------------------------------------------------------------------------------------------------
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;============================================================
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;
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; TZFS BANK 2 - Help and message functions.
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;
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;============================================================
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ORG BANKRAMADDR
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;-------------------------------------------------------------------------------
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; START OF PRINT ROUTINE METHODS
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;-------------------------------------------------------------------------------
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; Method to print out a true ASCII character, not the Sharp values. This is done using the mapping table ATBL for the
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; range 0..127, 128.. call the original Sharp routine.
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; Input: A = Ascii character.
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PRINTASCII: PUSH HL
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PUSH BC
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CP 080H ; Anything above 080H isnt ascii so call original routine.
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JR NC,PRINTASCII1
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CP 00DH ; Carriage Return? Dont map just execute via original Sharp call.
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JR Z,PRINTASCII1
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LD HL,ATBL
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LD C,A
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LD B,0
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ADD HL,BC
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LD A,(HL)
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CALL ?DSP
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PRINTASCII0:POP BC
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POP HL
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RET
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PRINTASCII1:CALL PRNT
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JR PRINTASCII0
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; Method to print out a string residing in this bank.
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;
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; As string messages take up space and banks are limited, it makes sense to locate all strings in one
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; bank and print them out from here, hence this method.
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;
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; Also, as strings often require embedded values to be printed (aka printf), a basic mechanism for printing out stack
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; parameters is provided. A PUSH before calling this method followed by an embedded marker (ie. 0xFF) will see the stack
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; value printed in hex at the point in the string where the marker appears.
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;
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; Input: DE = Address, in this bank or any other location EXCEPT another bank.
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; BC = Value to print with marker 0xFB if needed.
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; Upto 4 stack values accessed by markers 0xFF, 0xFE, 0xFD, 0xFC
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PRINTMSG: LD A,(DE)
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CP 000H ; End of string?
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RET Z
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CP 0FFH ; Marker to print out first stack parameter.
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JR Z,PRINTMSG3
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CP 0FEH ; Marker to print out second stack parameter.
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JR Z,PRINTMSG6
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CP 0FDH ; Marker to print out third stack parameter.
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JR Z,PRINTMSG7
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CP 0FCH ; Marker to print out fourth stack parameter.
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JR Z,PRINTMSG8
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CP 0FBH ; Marker to print out BC.
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JR Z,PRINTMSG9
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CP 0FAH ; Marker to print out a filename with filename address stored in BC.
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JR Z,PRINTMSG10
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CALL PRINTASCII
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PRINTMSG2: INC DE
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JR PRINTMSG
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PRINTMSG3: LD HL,6+0 ; Get first stack parameter, there are 2 pushes on the stack plus return address before the parameters.
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PRINTMSG4: ADD HL,SP
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LD A,(HL)
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INC HL
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LD H,(HL)
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LD L,A
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PRINTMSG5: CALL PRTHL
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JR PRINTMSG2
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PRINTMSG6: LD HL,6+2
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JR PRINTMSG4
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PRINTMSG7: LD HL,6+4
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JR PRINTMSG4
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PRINTMSG8: LD HL,6+6
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JR PRINTMSG4
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PRINTMSG9: PUSH BC ; Print out contents of BC as 4 digit hex.
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POP HL
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JR PRINTMSG5
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PRINTMSG10: PUSH DE ; Print out a filename with pointer stored in BC.
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PUSH BC
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POP DE
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CALL PRTFN
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POP DE
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JR PRINTMSG2
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; Method to print out the filename within an MZF header or SD Card header.
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; The name may not be terminated as the full 17 chars are used, so this needs
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; to be checked. Also, the filename uses Sharp Ascii so call the original Sharp
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; print routine.
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;
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; Input: DE = Address of filename.
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;
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PRTFN: PUSH BC
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LD B,FNSIZE ; Maximum size of filename.
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PRTMSG: LD A,(DE)
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INC DE
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CP 000H ; If there is a valid terminator, exit.
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JR Z,PRTMSGE
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CP 00DH
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JR Z,PRTMSGE
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CALL PRNT
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DJNZ PRTMSG ; Else print until 17 chars have been processed.
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CALL NL
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PRTMSGE: POP BC
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RET
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; A modified print string routine with full screen pause to print out the help screen text. The routine prints out true ascii
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; as opposed to Sharp modified ascii.
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; A string is NULL terminated.
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PRTSTR: PUSH AF
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PUSH BC
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PUSH DE
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LD A,0
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LD (TMPLINECNT),A
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PRTSTR1: LD A,(DE)
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CP 000H ; NULL terminates the string.
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JR Z,PRTSTRE
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CP 00DH ; As does CR.
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JR Z,PRTSTR3
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PRTSTR2: CALL PRINTASCII
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INC DE
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JR PRTSTR1
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PRTSTR3: PUSH AF
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LD A,(TMPLINECNT)
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CP 23 ; Check to see if a page of output has been displayed, if it has, pause.
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JR Z,PRTSTR5
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INC A
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PRTSTR4: LD (TMPLINECNT),A
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POP AF
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JR PRTSTR2
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PRTSTR5: CALL GETKY
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CP ' '
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JR NZ,PRTSTR5
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XOR A
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JR PRTSTR4
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PRTSTRE: POP DE
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POP BC
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POP AF
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RET
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; Method to convert a string with Sharp ASCII codes into standard ASCII codes via map lookup.
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; Inputs: DE = pointer to string for conversion.
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; B = Maximum number of characters to convert if string not terminated.
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;
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CNVSTR_SA: PUSH HL
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PUSH DE
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PUSH BC
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CNVSTRSA1: LD A,(DE) ; Get character for conversion.
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OR A ; Exit at End of String (NULL, CR)
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JR Z,CNVSTRSAEX
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CP 00DH
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JR Z,CNVSTRSAEX
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CP 020H ; No point mapping control characters.
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JR C,CNVSTRSA2
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;
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LD HL,SHARPTOASC ; Start of mapping table.
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PUSH BC
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LD C,A
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LD B,0
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ADD HL,BC ; Add in character offset.
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POP BC
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LD A,(HL)
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LD (DE),A ; Map character.
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CNVSTRSA2: INC DE
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DJNZ CNVSTRSA1
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CNVSTRSAEX: POP BC ; Restore all registers used except AF.
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POP DE
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POP HL
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RET
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; Method to convert a string with standard ASCII into Sharp ASCII codes via scan lookup in the mapping table.
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; Inputs: DE = pointer to string for conversion.
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; B = Maximum number of characters to convert if string not terminated.
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CNVSTR_AS: PUSH HL
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PUSH DE
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PUSH BC
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CNVSTRAS1: LD A,(DE) ; Get character for conversion.
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OR A ; Exit at End of String (NULL, CR)
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JR Z,CNVSTRSAEX
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CP 00DH
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JR Z,CNVSTRSAEX
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CP 020H ; No point mapping control characters.
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JR C,CNVSTRAS5
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LD HL,SHARPTOASC + 020H
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PUSH BC
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LD B, 0100H - 020H
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CNVSTRAS2: CP (HL) ; Go through table looking for a match.
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JR Z,CNVSTRAS3
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INC HL
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DJNZ CNVSTRAS2
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JR CNVSTRAS4 ; No match then dont convert.
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CNVSTRAS3: LD BC,SHARPTOASC ; On match or expiration of BC subtract table starting point to arrive at index.
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OR A
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SBC HL,BC
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LD A,L ; Index is used as the converted character.
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CNVSTRAS4: LD (DE),A
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POP BC
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CNVSTRAS5: INC DE
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DJNZ CNVSTRAS1
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JR CNVSTRSAEX
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; TRUE ASCII TO DISPLAY CODE TABLE
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;
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ATBL: DB 0CCH ; NUL '\0' (null character)
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DB 0E0H ; SOH (start of heading)
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DB 0F2H ; STX (start of text)
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DB 0F3H ; ETX (end of text)
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DB 0CEH ; EOT (end of transmission)
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DB 0CFH ; ENQ (enquiry)
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DB 0F6H ; ACK (acknowledge)
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DB 0F7H ; BEL '\a' (bell)
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DB 0F8H ; BS '\b' (backspace)
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DB 0F9H ; HT '\t' (horizontal tab)
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DB 0FAH ; LF '\n' (new line)
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DB 0FBH ; VT '\v' (vertical tab)
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DB 0FCH ; FF '\f' (form feed)
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DB 0FDH ; CR '\r' (carriage ret)
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DB 0FEH ; SO (shift out)
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DB 0FFH ; SI (shift in)
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DB 0E1H ; DLE (data link escape)
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DB 0C1H ; DC1 (device control 1)
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DB 0C2H ; DC2 (device control 2)
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DB 0C3H ; DC3 (device control 3)
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DB 0C4H ; DC4 (device control 4)
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DB 0C5H ; NAK (negative ack.)
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DB 0C6H ; SYN (synchronous idle)
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DB 0E2H ; ETB (end of trans. blk)
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DB 0E3H ; CAN (cancel)
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DB 0E4H ; EM (end of medium)
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DB 0E5H ; SUB (substitute)
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DB 0E6H ; ESC (escape)
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DB 0EBH ; FS (file separator)
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DB 0EEH ; GS (group separator)
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DB 0EFH ; RS (record separator)
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DB 0F4H ; US (unit separator)
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DB 000H ; SPACE
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DB 061H ; !
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DB 062H ; "
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DB 063H ; #
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DB 064H ; $
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DB 065H ; %
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DB 066H ; &
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DB 067H ; '
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DB 068H ; (
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DB 069H ; )
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DB 06BH ; *
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DB 06AH ; +
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DB 02FH ; ,
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DB 02AH ; -
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DB 02EH ; .
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DB 02DH ; /
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DB 020H ; 0
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DB 021H ; 1
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DB 022H ; 2
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DB 023H ; 3
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DB 024H ; 4
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DB 025H ; 5
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DB 026H ; 6
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DB 027H ; 7
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DB 028H ; 8
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DB 029H ; 9
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DB 04FH ; :
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DB 02CH ; ;
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DB 051H ; <
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DB 02BH ; =
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DB 057H ; >
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DB 049H ; ?
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DB 055H ; @
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DB 001H ; A
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DB 002H ; B
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DB 003H ; C
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DB 004H ; D
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DB 005H ; E
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DB 006H ; F
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DB 007H ; G
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DB 008H ; H
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DB 009H ; I
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DB 00AH ; J
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DB 00BH ; K
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DB 00CH ; L
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DB 00DH ; M
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DB 00EH ; N
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DB 00FH ; O
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DB 010H ; P
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DB 011H ; Q
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DB 012H ; R
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DB 013H ; S
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DB 014H ; T
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DB 015H ; U
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DB 016H ; V
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DB 017H ; W
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DB 018H ; X
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DB 019H ; Y
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DB 01AH ; Z
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DB 052H ; [
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DB 059H ; \ '\\'
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DB 054H ; ]
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DB 0BEH ; ^
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DB 03CH ; _
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DB 0C7H ; `
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DB 081H ; a
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DB 082H ; b
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DB 083H ; c
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DB 084H ; d
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DB 085H ; e
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DB 086H ; f
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DB 087H ; g
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DB 088H ; h
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DB 089H ; i
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DB 08AH ; j
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DB 08BH ; k
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DB 08CH ; l
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DB 08DH ; m
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DB 08EH ; n
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DB 08FH ; o
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DB 090H ; p
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DB 091H ; q
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DB 092H ; r
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DB 093H ; s
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DB 094H ; t
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DB 095H ; u
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DB 096H ; v
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DB 097H ; w
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DB 098H ; x
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DB 099H ; y
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DB 09AH ; z
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DB 0BCH ; {
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DB 080H ; |
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DB 040H ; }
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DB 0A5H ; ~
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DB 0C0H ; DEL
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ATBLE: EQU $
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; Mapping table to convert between Sharp ASCII and standard ASCII.
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; Sharp -> ASCII : Index with Sharp value into table to obtain conversion.
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; ASCII -> Sharp : Scan into table looking for value, on match the idx is the conversion. NB 0x20 = 0x20.
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SHARPTOASC: DB 000H, 020H, 020H, 020H, 020H, 020H, 020H, 020H, 020H, 020H, 020H, 020H, 020H, 000H, 020H, 020H ; 0x0F
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DB 020H, 020H, 020H, 020H, 020H, 020H, 020H, 020H, 020H, 020H, 020H, 020H, 020H, 020H, 020H, 020H ; 0x1F
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DB 020H, 021H, 022H, 023H, 024H, 025H, 026H, 027H, 028H, 029H, 02AH, 02BH, 02CH, 02DH, 02EH, 02FH ; 0x2F
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DB 030H, 031H, 032H, 033H, 034H, 035H, 036H, 037H, 038H, 039H, 03AH, 03BH, 03CH, 03DH, 03EH, 03FH ; 0x3F
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DB 040H, 041H, 042H, 043H, 044H, 045H, 046H, 047H, 048H, 049H, 04AH, 04BH, 04CH, 04DH, 04EH, 04FH ; 0x4F
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DB 050H, 051H, 052H, 053H, 054H, 055H, 056H, 057H, 058H, 059H, 05AH, 05BH, 05CH, 05DH, 05EH, 05FH ; 0x5F
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DB 020H, 020H, 020H, 020H, 020H, 020H, 020H, 020H, 020H, 020H, 020H, 020H, 020H, 020H, 020H, 020H ; 0x6F
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DB 020H, 020H, 020H, 020H, 020H, 020H, 020H, 020H, 020H, 020H, 020H, 020H, 020H, 020H, 020H, 020H ; 0x7F
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DB 020H, 020H, 020H, 020H, 020H, 020H, 020H, 020H, 020H, 020H, 020H, 020H, 020H, 020H, 020H, 020H ; 0x8F
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DB 020H, 020H, 065H, 020H, 020H, 020H, 074H, 067H, 068H, 020H, 062H, 078H, 064H, 072H, 070H, 063H ; 0x9F
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DB 071H, 061H, 07AH, 077H, 073H, 075H, 069H, 020H, 04FH, 06BH, 066H, 076H, 020H, 075H, 042H, 06AH ; 0xAF
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DB 06EH, 020H, 055H, 06DH, 020H, 020H, 020H, 06FH, 06CH, 041H, 06FH, 061H, 020H, 079H, 020H, 020H ; 0xBF
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DB 020H, 020H, 020H, 020H, 020H, 020H, 020H, 020H, 020H, 020H, 020H, 020H, 020H, 020H, 020H, 020H ; 0xCF
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DB 020H, 020H, 020H, 020H, 020H, 020H, 020H, 020H, 020H, 020H, 020H, 020H, 020H, 020H, 020H, 020H ; 0xDF
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DB 020H, 020H, 020H, 020H, 020H, 020H, 020H, 020H, 020H, 020H, 020H, 020H, 020H, 020H, 020H, 020H ; 0xEF
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DB 020H, 020H, 020H, 020H, 020H, 020H, 020H, 020H, 020H, 020H, 020H, 020H, 020H, 020H, 020H, 020H ; 0xFF
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;-------------------------------------------------------------------------------
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; END OF PRINT ROUTINE METHODS
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;-------------------------------------------------------------------------------
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; The FDC controller uses it's busy/wait signal as a ROM address line input, this
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; causes a jump in the code dependent on the signal status. It gets around the 2MHz Z80 not being quick
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; enough to process the signal by polling.
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ALIGN_NOPS FDCJMP1
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ORG FDCJMP1
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FDCJMPL2: JP (IX)
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;-------------------------------------------------------------------------------
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;
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; Message table
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;
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;-------------------------------------------------------------------------------
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; 0 + <- 39
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; -----------------------------------------
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MSGSON: DB "+ TZFS v1.6 ", NULL ; Version 1.0-> first split from RFS v2.0
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MSGSONEND: DB " **", CR, NULL ; Signon banner termination.
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MSGSONT80: DB "(T80)", NULL ; T80 CPU detected.
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MSGNOTFND: DB "Not Found", CR, NULL
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MSGBADCMD: DB "???", CR, NULL
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MSGSDRERR: DB "SD Read error, Sec:",0FBH, NULL
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MSGSVFAIL: DB "Save failed.", CR, NULL
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MSGERAFAIL: DB "Erase failed.", CR, NULL
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MSGCDFAIL: DB "Directory invalid.", CR, NULL
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MSGERASEDIR:DB "Deleted dir entry:",0FBH, NULL
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MSGCMTDATA: DB "Load:",0FEH,",Exec:",0FFH, ",Size:", 0FBH, CR, NULL
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MSGNOTBIN: DB "Not binary", CR, NULL
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MSGLOAD: DB CR, "Loading ",'"',0FAH,'"', CR, NULL
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MSGSAVE: DB CR, "Filename: ", NULL
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MSGE1: DB CR, "Check sum error!", CR, NULL ; Check sum error.
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MSGCMTWRITE:DB CR, "Writing ", '"',0FAH,'"', CR, NULL
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MSGOK: DB CR, "OK!", CR, NULL
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MSGSAVEOK: DB "Tape image saved.", CR, NULL
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MSGBOOTDRV: DB CR, "Floppy boot drive ?", NULL
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MSGLOADERR: DB CR, "Disk loading error", CR, NULL
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MSGIPLLOAD: DB CR, "Disk loading ", NULL
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MSGDSKNOTMST:DB CR, "This is not a boot disk", CR, NULL
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MSGINITM: DB "Init memory", CR, NULL
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MSGREAD4HEX:DB "Bad hex number", CR, NULL
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MSGT2SDERR: DB "Copy from Tape to SD Failed", CR, NULL
|
|
MSGSD2TERR: DB "Copy from SD to Tape Failed", CR, NULL
|
|
MSGT2SDOK: DB "Success, Tape to SD done.", CR, NULL
|
|
MSGSD2TOK: DB "Success, SD to Tape done.", CR, NULL
|
|
MSGUNKNHW: DB "Unknown hardware, cannot change!", CR, NULL
|
|
MSGFAILBIOS:DB "Failed to load alternate BIOS!", CR, NULL
|
|
MSGFAILEXIT:DB "TZFS exit failed, I/O proc error!", CR, NULL
|
|
MSGFREQERR: DB "Error, failed to change frequency!", CR, NULL
|
|
MSGBADNUM: DB "Error, bad number supplied!", CR, NULL
|
|
MSGNOFPGA: DB "Error, no FPGA video module!", CR, NULL
|
|
MSGT80ERR: DB "Error, failed to switch to T80 CPU!", CR, NULL
|
|
MSGZ80ERR: DB "Error, failed to switch to Z80 CPU!", CR, NULL
|
|
MSGZPUERR: DB "Error, failed to switch to ZPU CPU!", CR, NULL
|
|
MSGNOSOFTCPU:DB "No soft cpu hardware!", CR, NULL
|
|
MSGNOT80CPU:DB "T80 not available!", CR, NULL
|
|
MSGNOEMU: DB "No Sharp MZ Series Emu hardware!", CR, NULL
|
|
;
|
|
OKCHECK: DB ", CHECK: ", CR, NULL
|
|
OKMSG: DB " OK.", CR, NULL
|
|
DONEMSG: DB 11h
|
|
DB "RAM TEST COMPLETE.", CR, NULL
|
|
BITMSG: DB " BIT: ", CR, NULL
|
|
BANKMSG: DB " BANK: ", CR, NULL
|
|
MSG_TIMERTST:DB "8253 TIMER TEST", CR, NULL
|
|
MSG_TIMERVAL:DB "READ VALUE 1: ", CR, NULL
|
|
MSG_TIMERVAL2:DB "READ VALUE 2: ", CR, NULL
|
|
MSG_TIMERVAL3:DB "READ DONE.", CR, NULL
|
|
|
|
|
|
; The FDC controller uses it's busy/wait signal as a ROM address line input, this
|
|
; causes a jump in the code dependent on the signal status. It gets around the 2MHz Z80 not being quick
|
|
; enough to process the signal by polling.
|
|
ALIGN_NOPS FDCJMP2
|
|
ORG FDCJMP2
|
|
FDCJMPH2: JP (IY)
|
|
|
|
; Continuation of messages after the Floppy Disk controller fixed location.
|
|
MSGNOZPUCPU:DB "ZPU Evo not available!", CR, NULL
|
|
MSGNOCMTDIR:DB "CMT has no directory.", CR, NULL
|
|
MSGNOVERIFY:DB "No Verify for SD drive.", CR, NULL
|
|
|
|
SVCRESPERR: DB "I/O Response Error, time out!", CR, NULL
|
|
SVCIOERR: DB "I/O Error, time out!", CR, NULL
|
|
|
|
;TESTMSG: DB "HL is:",0FBH, 00DH, 000H
|
|
;TESTMSG2: DB "DE is:",0FBH, 00DH, 000H
|
|
;TESTMSG3: DB "BC is:",0FBH, 00DH, 000H
|
|
;TESTMSG4: DB "4 is:",0FBH, 00DH, 000H
|
|
|
|
|
|
|
|
;-------------------------------------------------------------------------------
|
|
; START OF HELP SCREEN FUNCTIONALITY
|
|
;-------------------------------------------------------------------------------
|
|
|
|
; Simple help screen to display commands.
|
|
HELP: ;CALL NL
|
|
LD DE, HELPSCR
|
|
CALL PRTSTR
|
|
RET
|
|
|
|
; Help text. Use of lower case, due to Sharp's non standard character set, is not easy, you have to manually code each byte
|
|
; hence using upper case.
|
|
HELPSCR: ; "--------- 40 column width -------------"
|
|
DB "4 40 col mode.", 00DH
|
|
DB "8 80 col mode.", 00DH
|
|
;DB "40A select MZ-80A 40col Mode.", 00DH
|
|
;DB "80A select MZ-80A 80col Mode.", 00DH
|
|
;DB "80B select MZ-80B Mode.", 00DH
|
|
;DB "700 select MZ-700 40col Mode.", 00DH
|
|
;DB "7008 select MZ-700 80col Mode.", 00DH
|
|
DB "B toggle keyboard bell.", 00DH
|
|
DB "BASIC load BASIC SA-5510.", 00DH
|
|
DB "C[b] clear memory $1200-$D000.", 00DH
|
|
DB "CD[d] switch to SD directory [d].", 00DH
|
|
DB "CPM load CPM.", 00DH
|
|
DB "DXXXX[YYYY] dump mem XXXX to YYYY.", 00DH
|
|
DB "DIR[wc] SD dir listing, wc=wildcard.", 00DH
|
|
DB "ECfn erase file, fn=No or Filename", 00DH
|
|
DB "EX exit TZFS, reset as original.", 00DH
|
|
DB "Fx boot fd drive x.", 00DH
|
|
DB "FREQn set CPU to nKHz, 0 default.", 00DH
|
|
DB "H this help screen.", 00DH
|
|
DB "JXXXX jump to location XXXX.", 00DH
|
|
DB "LTfn[,M] load tape, fn=Filename", 00DH
|
|
DB " M = HW Mode, K=80K,C=80C,1=1200", 00DH
|
|
DB " A=80A,7=700,8=800,B=80B,2=2000", 00DH
|
|
DB "LCfn[,M] load from SD, fn=No or FileN", 00DH
|
|
DB " add NX for no exec, ie.LCNX.", 00DH
|
|
DB "MXXXX edit memory starting at XXXX.", 00DH
|
|
DB "MZmc activate hardware emulation.", 00DH
|
|
DB " mc =80K,80C,1200,80A,700,800,80B,2000", 00DH
|
|
DB "P test printer.", 00DH
|
|
DB "R test dram memory.", 00DH
|
|
DB "SDDd change to SD directory {d}.", 00DH
|
|
DB "SD2Tfn[,M] copy SD to tape.", 00DH
|
|
DB "STXXXXYYYYZZZZ[,M] save mem to tape.", 00DH
|
|
DB "SCXXXXYYYYZZZZ save mem to card.", 00DH
|
|
DB " XXXX=start, YYYY=end, ZZZZ=exec", 00DH
|
|
DB "T test timer.", 00DH
|
|
DB "T2SD[B][,M] copy tape to SD, B=Bulk", 00DH
|
|
DB "T80 switch to soft T80 CPU.", 00DH
|
|
DB "V verify tape save.", 00DH
|
|
DB "VBORDERn set vga border colour.", 00DH
|
|
DB "VMODEn set video mode.", 00DH
|
|
DB "VGAn set VGA mode.", 00DH
|
|
DB "Z80 switch to hard Z80 CPU.", 00DH
|
|
DB "ZPU switch to ZPU Evo CPU / zOS.", 00DH
|
|
; "--------- 40 column width -------------"
|
|
DB 000H
|
|
|
|
;-------------------------------------------------------------------------------
|
|
; END OF HELP SCREEN FUNCTIONALITY
|
|
;-------------------------------------------------------------------------------
|
|
;
|
|
; Ensure we fill the entire 4K by padding with FF's.
|
|
;
|
|
ALIGN_NOPS 10000H
|