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162 lines
4.0 KiB
162 lines
4.0 KiB
;
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;==================================================================================================
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; HEATH H8 FRONT PANEL (DISPLAY AND KEYBOARD) ROUTINES
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;==================================================================================================
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;
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; LED SEGMENTS (BIT VALUES)
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;
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; +--02--+
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; 40 04
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; +--01--+
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; 20 08
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; +--10--+ 80
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;
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;__H8P_PREINIT_______________________________________________________________________________________
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;
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; CONFIGURE AND RESET PANEL
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;____________________________________________________________________________________________________
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;
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; HARDWARE RESET PRIOR TO ROMWBW CONSOLE INITIALIZATION
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;
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H8P_PREINIT:
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LD A,(DSKY_DISPACT) ; DSKY DISPATCHER ALREADY SET?
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OR A ; SET FLAGS
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RET NZ ; IF ALREADY ACTIVE, ABORT
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;
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; REGISTER DRIVER WITH HBIOS
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LD BC,H8P_DISPATCH
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CALL DSKY_SETDISP
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;
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RET
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;
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;__H8P_INIT__________________________________________________________________________________________
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;
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; DISPLAY DSKY INFO ON ROMWBW CONSOLE
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;____________________________________________________________________________________________________
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;
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H8P_INIT:
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CALL NEWLINE ; FORMATTING
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PRTS("H8P:$") ; DRIVER TAG
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;
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RET ; DONE
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;
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; DSKY DEVICE FUNCTION DISPATCH ENTRY
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; A: RESULT (OUT), 0=OK, Z=OK, NZ=ERR
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; B: FUNCTION (IN)
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;
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H8P_DISPATCH:
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LD A,B ; GET REQUESTED FUNCTION
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AND $0F ; ISOLATE SUB-FUNCTION
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JP Z,H8P_RESET ; RESET DSKY HARDWARE
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DEC A
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JP Z,H8P_STAT ; GET KEYPAD STATUS
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DEC A
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JP Z,H8P_GETKEY ; READ A KEY FROM THE KEYPAD
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DEC A
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JP Z,H8P_SHOWHEX ; DISPLAY A 32-BIT BINARY VALUE IN HEX
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DEC A
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JP Z,H8P_SHOWSEG ; DISPLAY SEGMENTS
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DEC A
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JP Z,H8P_KEYLEDS ; SET KEYPAD LEDS
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DEC A
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JP Z,H8P_STATLED ; SET STATUS LED
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DEC A
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JP Z,H8P_BEEP ; BEEP DSKY SPEAKER
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DEC A
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JP Z,H8P_DEVICE ; DEVICE INFO
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SYSCHKERR(ERR_NOFUNC)
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RET
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;
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; RESET DSKY -- CLEAR DISPLAY AND KEYPAD FIFO
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;
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H8P_RESET:
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XOR A ; SIGNAL SUCCESS
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RET
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;
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; CHECK FOR KEY PRESS, SAVE RAW VALUE, RETURN STATUS
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;
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H8P_STAT:
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XOR A ; ZERO KEYS PENDING (FOR NOW)
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RET
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;
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; WAIT FOR A DSKY KEYPRESS AND RETURN
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;
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H8P_GETKEY:
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; PUT KEY VALUE IN REGISTER E
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XOR A ; SIGNAL SUCCESS
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RET
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;
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; DISPLAY HEX VALUE FROM DE:HL
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;
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H8P_SHOWHEX:
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LD BC,DSKY_HEXBUF ; POINT TO HEX BUFFER
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CALL ST32 ; STORE 32-BIT BINARY THERE
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LD HL,DSKY_HEXBUF ; FROM: BINARY VALUE (HL)
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LD DE,DSKY_BUF ; TO: SEGMENT BUFFER (DE)
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CALL DSKY_BIN2SEG ; CONVERT
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LD HL,DSKY_BUF ; POINT TO SEGMENT BUFFER
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; AND FALL THRU TO DISPLAY IT
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;
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; DISPLAY BYTE VALUES POINTED TO BY DE. THE INCOMING BYTES ARE IN
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; THE STANDARD ROMWBW SEGMENT ENCODING AND MUST BE TRANSLATED TO THE
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; HEATH ENCODING (SEE ICM.ASM FOR EXAMPLE):
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;
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;
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; From: To:
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; +--01--+ +--02--+
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; 20 02 40 04
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; +--40--+ +--01--+
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; 10 04 20 08
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; +--08--+ 80 +--10--+ 80
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;
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H8P_SHOWSEG:
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XOR A ; SIGNAL SUCCESS
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RET
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;
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; UPDATE KEY LEDS (H8 HAS NONE)
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;
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H8P_KEYLEDS:
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XOR A ; SIGNAL SUCCESS
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RET
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;
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; SET STATUS LEDS BASED ON BITS IN E
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;
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H8P_STATLED:
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XOR A ; SIGNAL SUCCESS
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RET
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;
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; BEEP THE SPEAKER ON THE H8P
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;
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H8P_BEEP:
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POP BC
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XOR A ; SIGNAL SUCCESS
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RET
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;
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; DEVICE INFORMATION
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;
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H8P_DEVICE:
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LD D,DSKYDEV_H8P ; D := DEVICE TYPE
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LD E,0 ; E := PHYSICAL DEVICE NUMBER
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LD H,0 ; H := MODE
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LD L,0 ; L := BASE I/O ADDRESS
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XOR A ; SIGNAL SUCCESS
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RET
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;
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;_KEYMAP_TABLE_____________________________________________________________________________________________________________
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;
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H8P_KEYMAP: ; *** NEEDS TO BE UPDATED ***
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; POS $00 $01 $02 $03 $04 $05 $06 $07
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; KEY [0] [1] [2] [3] [4] [5] [6] [7]
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.DB $0D, $04, $0C, $14, $03, $0B, $13, $02
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;
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; POS $08 $09 $0A $0B $0C $0D $0E $0F
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; KEY [8] [9] [A] [B] [C] [D] [E] [F]
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.DB $0A, $12, $01, $09, $11, $00, $08, $10
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;
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; POS $10 $11 $12 $13 $14 $15 $16 $17
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; KEY [FW] [BK] [CL] [EN] [DE] [EX] [GO] [BO]
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.DB $05, $15, $1D, $1C, $1B, $1A, $19, $18
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; POS $18 $19 $1A $1B
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; KEY [F4] [F3] [F2] [F1]
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.DB $23, $22, $21, $20
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