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sysdoc.src
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.subttl C/128 SYSTEM MEMORY MAPS (11/07/86)
.page
; COMPOSITE SYSTEM MEMORY MAP
;
; C64 Cartridges C64 C128 ROMs RAM Banks (0-3)
; $FFFF> _______________ _______________ _______________ _______________
; | | | | | | | |
; | Game | | KERNAL | | | | |
; | | | & | | KERNAL | | |
; | Card | | EDITOR | | | | |
; | | | | | | | |
; $E000>|_______________|-------|_______________|-------|_______________| | |
; | Color Nybbles,| | Color Nyb,I/O,| | |
; | I/O and CHARs | | CHARs & CP/M | | |
; $D000>------------------------|_______________|-------|_______________| | |
; | | | |
; _______________ _______________ | EDITOR | | |
; $C000>| |-------| |-------|_______________|-------| |
; | | | | | | | |
; | Application | | | | MONITOR | | |
; $B000>| |-------| BASIC |-------|_______________| | |
; | Card - HI | | | | | | |
; | | | | | | | _ |
; $A000>|_______________|-------|_______________| | | | | SYSTEM |
; | | | BASIC | | RAM0-| & BASIC|
; | Application | | | | |_ TEXT |
; | | | HI | | _ |
; | Card - LO | | | | | BASIC |
; | | | | | RAM1-| VARs |
; $8000>|_______________|-------------------------------|_______________|-------| |_ |
; | | | |
; | | | _ |
; | | | RAM2-| FUTURE |
; | BASIC | | RAM3-|_EXPAND |
; | | | |
; | LO | | |
; | | | |
; | | | |
; | | | |
; | | | |
; | | | |
; $4000>------------------------------------------------|_______________|-------| |
; | |
; | |
; | |
; | |
; | |
; | |
; | |
; | |
; | |
; $0400>------------------------------------------------------------------------|_______________|
; | COMMON |
; $0000>------------------------------------------------------------------------|_______________|
.page
; $0A00>|---------------| $1300>|---------------| $1C00>|---------------| $FFFF>|---------------|
; | | | | | | $FFFA>| NMI RST IRQ |
; | | | Basic | | | $FFD0>| CP/M RAM Code |
; | | | Absolute | | | | Krnl RAM Code |
; | Basic | | Variables | | | $FF05>|---------------|
; | | | | | | |MMU Config Regs|
; $0900>| Run-Time | $1200>|---------------| $1B00>| | $FF00>|---------------|
; | | | Basic | | | | |
; | Stack | | DOS / VSP | | | | |
; | | | Variables | | | | |
; | | $1108>|---------------| | | | |
; | | |CP/M Reset Code| | | | |
; $0800>|---------------| $1100>|---------------| $1A00>| | | |
; | | | | | | | |
; | | | Function | | | | |
; | | | Key | | | | |
; | | | Buffer | | | | |
; | VIC | | | | | | |
; | | $1000>|---------------| $1900>| | | |
; | Text | | | | | | |
; ~ ~ | | | Reserved | | Basic |
; | Screen | | | | | | |
; | | | Sprite | | for | | |
; | (VM#1) | | | | | | |
; | | $0F00>| Definition | $1800>| Applications | ~ Text ~
; | | | | | | | |
; | | | Area | | Software | | |
; | | | | | | | |
; | | | | | | | Area |
; | | | | | | | |
; $0400>|---------------| $0E00>|---------------| $1700>| | | |
; | Basic RAM Code| | | | | | (Basic Text |
; $0380>| - - - - - - - | | RS-232 | | | | begins at |
; | Kernal Tables | | Output | | | | $1C00 |
; $033C>| - - - - - - - | | Buffer | | | | if Bit-Map |
; | Indirects | | | | | | unallocated) |
; $02FC>|---------------| $0D00>|---------------| $1600>| | $4000>|---------------|
; |Kernal RAM Code| | | | | | |
; $02A2>| - - - - - - - | | RS-232 | | | | |
; |Basic & Monitor| | Input | | | | |
; | Input | | Buffer | | | | VIC |
; | Buffer | | | | | | |
; $0200>|---------------| $0C00>|---------------| $1500>| | ~ Bit-Map ~
; | System Stack | | (Disk Boot | | | | |
; $0149>| - - - - - - - | | Page) | | | | Screen |
; |Basic DOS,USING| $0BC0>| - - - - - - - | | | | |
; $0110>| - - - - - - - | | Cassette | | | | |
; | FBUFFER | | Buffer | | | | |
; $0100>|---------------| $0B00>|---------------| $1400>| | $2000>| - - - - - - - |
; | | | Monitor & | | | | |
; | Kernal Z.P. | | Kernal | | | | VIC |
; $0090>| - - - - - - - | | Absolute | | | ~ Bit-Map ~
; | Basic Z.P. | | Variables | | | | Color |
; $0002>| _ _ _ _ _ _ _ | | | | | | (VM#2) |
; $0000>|_______________| $0A00>|---------------| $1300>|---------------| $1C00>|---------------|
; C/128 SYSTEM ROM LAYOUT
;
; $FFFF _ _______________
; $FF4D _ |_______________|__________ Kernal Jump Table & Hardware Vectors --------
; | | |
; $FF05 _ |_______________|__________ Kernal Interrupt Dispatch Code |
; $FF00 _ |///////////////|__________ MMU Configuration Registers |
; | | |
; | | |
; $FC80 _ |_______________|__________ ROM Reserved for Foreign Language Versions |
; | | |
; | | |
; $FA80 _ |_______________|__________ Editor Tables |
; | | |
; | | |
; / / -\ HIGH
; | | -/ ROM
; $E000 _ |_______________|__________ Kernal ROM Code |
; |///////////////| |
; |///////////////| |
; ///////////////// |
; |///////////////| |
; $D000 _ |///////////////|__________ I/O Space or Character ROM |
; | | |
; | | |
; / / |
; | | |
; $C000 _ |_______________|__________ Editor ROM Code -----------------------------
; | | |
; | | |
; / / |
; | | |
; $B000 _ |_______________|__________ Monitor ROM Code -\ MID
; | | -/ ROM
; | | |
; | | |
; | | |
; | | |
; $8000 - / / ------------------------------------------------------|
; | | |
; | | -\ LOW
; | | -/ ROM
; | | |
; $4000 _ |_______________|---------- BASIC ROM Code -----------------------------|
.page
; I/O BLOCK MAP 6526 CIA REGISTER MAP (typical)
;
; $DFFF _ _______________ REG# FUNCTION
; | (DMA Cntlr) | ________
; | I/O - 2 | / F .... CRB (control register B)
; $DF00 _ |_______________| / E .... CRA (control register A)
; | | / D .... ICR (interrupt control register)
; | I/O - 1 | / C .... SDR (serial data register)
; $DE00 _ |_______________|_/ B .... TOD (hours)
; | | A .... TOD (minutes)
; | CIA - 2 | 9 .... TOD (seconds)
; $DD00 _ |_______________| 8 .... TOD (tenths)
; | | 7 .... TB-HI (timer B)
; | CIA - 1 | 6 .... TB-LO
; $DC00 _ |_______________|_ 5 .... TA-HI (timer A)
; | | \ 4 .... TA-LO
; | VIC | \ 3 .... DDRB (data direction port B)
; / COLOR / \ 2 .... DDRA (data direction port A)
; | RAM | \ 1 .... PRB (port B)
; $D800 _ |_______________| \________ 0 .... PRA (port A)
; | |
; | (RESERVED) |
; $D700 _ |_______________|
; | |
; | 8563 VDC | ..... (register map on following pages)
; $D600 _ |_______________|
; | |
; | MMU | ..... (register map on following pages)
; $D500 _ |_______________|
; | |
; | SID | ..... (register map on following pages)
; $D400 _ |_______________|
; | |
; | |
; / VIC / ..... (register map on following pages)
; | |
; $D000 _ |_______________|
.page
;/////////////// T H E C / 1 2 8 K E Y B O A R D \\\\\\\\\\\\\\\
; ------------------------------------------------------------------- -------
; | C0 | C1 | C2 | C3 | C4 | C5 | C6 | C7 | K0 | K1 | K2 | | GND |
; |PIN13|PIN19|PIN18|PIN17|PIN16|PIN15|PIN14|PIN20|PIN21|PIN22|PIN23| |PIN-1|
; ---|-----|-----|-----|-----|-----|-----|-----|-----|-----|-----|--- ---|---
; \|/ \|/ \|/ \|/ \|/ \|/ \|/ \|/ \|/ \|/ \|/ |
; ------- ------------------------------------------------------------------- |
; | R0 |/__| INS | # | % | ' | ) | + | lb | ! | HELP| ESC | ALT | |
; |PIN12|\ | DEL | 3 | 5 | 7 | 9 | | | 1 | | | | |
; ------- ------------------------------------------------------------------- |
; | R1 |/__| RET | W | R | Y | I | P | * | <-- | 8 | + | 0 | |
; |PIN11|\ | | | | | | | | | | | | |
; ------- ------------------------------------------------------------------- |
; | R2 |/__| /_\ | A | D | G | J | L | ] | CTRL| 5 | - | . | |
; |PIN10|\ | \ / | | | | | | ; | | | | | |
; ------- ------------------------------------------------------------------- |
; | R3 |/__| F8 | $ | & | ( | 0 | - | CLR | " | TAB | LINE| /|\ | |
; |PIN-5|\ | F7 | 4 | 6 | 8 | | | HOM | 2 | | FEED| | | |
; ------- ------------------------------------------------------------------- |
; | R4 |/__| F2 | Z | C | B | M | > |RIGHT|SPACE| 2 |ENTER| | | |
; |PIN-8|\ | F1 | | | | | . |SHIFT| BAR | | | \|/ | |
; ------- ------------------------------------------------------------------- |
; | R5 |/__| F4 | S | F | H | K | [ | = | C= | 4 | 6 | /__ | |
; |PIN-7|\ | F3 | | | | | : | | | | | \ | |
; ------- ------------------------------------------------------------------- |
; | R6 |/__| F6 | E | T | U | O | @ | pi | Q | 7 | 9 | __\ | |
; |PIN-6|\ | F5 | | | | | | ^ | | | | / | |
; ------- ------------------------------------------------------------------- |
; | R7 |/__| /|\ |LEFT | X | V | N | < | ? | RUN | 1 | 3 | NO |_____ |
; |PIN-9|\ | \|/ |SHIFT| | | | , | / | STOP| | | SCRL| | |
; ------- ------------------------------------------------------------------- | |
; | | |
; ------- / (LOCKING) | |
; |SHIFT|__o o____________________________________________________| |
; | LOCK| |
; ------- |
; ------- ------- / |
; | NMI |/________|RESTR|__o o________________________________________________________o
; |PIN-3|\ | | |
; ------- ------- |
; ------- ------- / (LOCKING) |
; |40/80|/________|40/80|__o o________________________________________________________o
; |PIN24|\ |DSPLY| |
; ------- ------- |
; ------- ------- / (LOCKING) |
; |P6510|/________|CAPS |__o o________________________________________________________o
; |PIN25|\ |LOCK |
; ------- -------
;NOTES: 1/ THE 64 KEYS UNDER C0 THRU C7 ABOVE OCCUPY THE SAME MATRIX POSITION AS IN THE C/64,
; AS DOES THE 'RESTORE' KEY. INCLUDING THE 'SHIFT LOCK' KEY, THERE ARE 66 SUCH KEYS.
; 2/ THE 24 KEYS UNDER THE K0, K1 AND K2 OUTPUTS ARE PART OF THE EXTENDED KEYBOARD,
; AS ARE THE '40/80 DSPLY' AND 'CAPS LOCK' KEYS. THERE ARE 26 NEW KEYS. THEY WILL
; NOT BE SCANNED IN C/64 MODE, ALTHO THE USER MAY WRITE CODE TO SCAN THEM HIMSELF.
.page
; 8722 MMU REGISTER MAP
;
; REGISTER DESCRIPTION
; _______
; 11 (VR) ............. | 7 - 4 | ..... BANK Version
; Version Register | 3 - 0 | ..... MMU Version
; |-------|
; _______ __
; 10 (PAGE-1 HI) ...... | 7 - 4 | ..... ??? |
; 8 (PAGE-0 HI) | 3 | ......... A19 Swaps PAGE 0 and/or PAGE 1
; | 2 | ......... A18 with any other page in the
; | 1 | ......... A17 256K address space.
; | 0 | ......... A16 |
; |---| |
; ___ |
; 9 (PAGE-1 LO) ...... | 7 | ......... A15 |
; 7 (PAGE-0 LO) | 6 | ......... A14 |
; | 5 | ......... A13 |
; | 4 | ......... A12 |
; | 3 | ......... A11 |
; | 2 | ......... A10 |
; | 1 | ......... A9 |
; | 0 | ......... A8 __|
; |---|
; ___
; 6 (RCR) | 7 | ......... VA17 \ VIC RAM Bank (and DMA RAM Bank)
; | 6 | ......... VA16 /
; RAM Configuration | 5 | ......... \ RAM Block (for future expansion)
; Register | 4 | ......... /
; | 3 | ......... \ SHARE Status (none,bot,top,both)
; | 2 | ......... /
; | 1 | ......... \ SHARE Amount (1k,4k,8k,16k)
; | 0 | ......... /
; |---|
; ___
; 5 (MCR) | 7 | ......... 40/80 Key Sense
; | 6 | ......... OS Mode 0 = 128, 1 = 64
; Mode Configuration | 5 | ......... /EXROM line sense
; Register | 4 | ......... /GAME line sense
; | 3 | ......... FSDIR 0 = IN, 1 = OUT
; | 2 | ......... ???
; | 1 | ......... ???
; | 0 | ......... Processor: 0 = Z80, 1 = 85xx
; |---|
; ___
; 4 (PCR-D) | 7 | ......... A17 \ RAM BANK (0-3, processor only)
; 3 (PCR-C) | 6 | ......... A16 /
; 2 (PCR-B) | 5 | ......... \ ROM-HI (system,int,ext,RAM)
; 1 (PCR-A) | 4 | ......... /
; 0 (CR) | 3 | ......... \ ROM-MID (system,int,ext,RAM)
; | 2 | ......... /
; Pre-configuration | 1 | ................. ROM-LO (system,RAM)
; & Configuration | 0 | ................. I/O (I/O, else see ROM-HI)
; Registers |---|
.page
; 8726 DMA CONTROLLER REGISTER MAP (11/86)
;
;
; REG # _______________________________________________________
; 0_ | PEND | EOB | FAULT| SIZE | VER3 | VER2 | VER1 | VER0 |______ Status Register
; 1_ | EXEC | -- | LOAD | FF00 | -- | -- | MODE |______ Command Register
; 2_ | A7 | A6 | A5 | A4 | A3 | A2 | A1 | A0 |______ Host Address lo
; 3_ | A15 | A14 | A13 | A12 | A11 | A10 | A9 | A8 |______ Host Address hi
; 4_ | EX7 | EX6 | EX5 | EX4 | EX3 | EX2 | EX1 | EX0 |______ Expansion Address lo
; 5_ | EX15 | EX14 | EX13 | EX12 | EX11 | EX10 | EX9 | EX8 |______ Expansion Address hi
; 6_ | -- | -- | -- | -- | -- | BA2 | BA1 | BA0 |______ Expansion Bank pointer
; 7_ | L7 | L6 | L5 | L4 | L3 | L2 | L1 | L0 |______ Transfer Length lo
; 8_ | L15 | L14 | L13 | L12 | L11 | L10 | L9 | L8 |______ Transfer Length hi
; 9_ | ENBL | IEOB | VFY | -- | -- | -- | -- | -- |______ Interrupt Mask
; 10_ | AC1 | AC0 | -- | -- | -- | -- | -- | -- |______ Address Control
; |______|______|______|______|______|______|______|______|
; MODE => 00: Transfer FROM internal TO external
; 01: Transfer FROM external TO internal
; 10: Swap
; 11: Verify
;
; SIZE => 0: 128KB
; 1: 512KB (or 256KB if 1764 type card)
;
; Adr Contl => 00: Increment both host & expansion addresses
; 01: Fix expansion address
; 10: Fix host address
; 11: Fix both host & expansion addresses
;
;
; NOTE: Bits 7-5 of STATUS register are CLEARED when this register is READ
; The DMA CONTROLLER appears in the C/128 I/O memory map at IO2 ($DF00).
.page
; 8564 VIC REGISTER MAP
;
; REG # _______________________________________________________
; 0_ | S0x7 | S0x6 | S0x5 | S0x4 | S0x3 | S0x2 | S0x1 | S0x0 |______ Sprite 0 X location
; 1_ |______|______|______|______|______|______|______|______|______ Sprite 0 Y location
; 2_ | | | | | | | | |______ Sprite 1 X location
; 3_ |______|______|______|______|______|______|______|______|______ Sprite 1 Y location
; 4_ | | | | | | | | |______ Sprite 2 X location
; 5_ |______|______|______|______|______|______|______|______|______ Sprite 2 Y location
; 6_ | | | | | | | | |______ Sprite 3 X location
; 7_ |______|______|______|______|______|______|______|______|______ Sprite 3 Y location
; 8_ | | | | | | | | |______ Sprite 4 X location
; 9_ |______|______|______|______|______|______|______|______|______ Sprite 4 Y location
; 10_ | | | | | | | | |______ Sprite 5 X location
; 11_ |______|______|______|______|______|______|______|______|______ Sprite 5 Y location
; 12_ | | | | | | | | |______ Sprite 6 X location
; 13_ |______|______|______|______|______|______|______|______|______ Sprite 6 Y location
; 14_ | | | | | | | | |______ Sprite 7 X location
; 15_ |______|______|______|______|______|______|______|______|______ Sprite 7 Y location
; 16_ | S7x8 | S6x8 | S5x8 | S4x8 | S3x8 | S2x8 | S1x8 | S0x8 |______ MSB of Sprite X loctn
; 17_ | RC8 | ECM | BMM | Blank| ROWS | Y2 | Y1 | Y0 |______ mode, #row, y-scroll
; 18_ | RC7 | RC6 | RC5 | RC4 | RC3 | RC2 | RC1 | RC0 |______ Raster latch
; 19_ | LPx8 | LPx7 | LPx6 | LPx5 | LPx4 | LPx3 | LPx2 | LPx1 |______ Lightpen X latch
; 20_ | LPy7 | LPy6 | LPy5 | LPy4 | LPy3 | LPy2 | LPy1 | LPy0 |______ Lightpen Y latch
; 21_ | SD7 | SD6 | SD5 | SD4 | SD3 | SD2 | SD1 | SD0 |______ Sprite Disable
; 22_ | -- | -- | Reset| MCM | COLS | X2 | X1 | X0 |______ mode, #col, x-scroll
; 23_ | S7Ey | S6Ey | S5Ey | S4Ey | S3Ey | S2Ey | S1Ey | S0Ey |______ Sprite Y expand
; 24_ | VM13 | VM12 | VM11 | VM10 | CB13 | CB12 | CB11 | -- |______ VM Base, CHR Base
; 25_ | IRQ | -- | -- | -- | LP | S/S | S/B | RIRQ |______ IRQ source (wrt to clr)
; 26_ | -- | -- | -- | -- | _LP | _S/S | _S/B | _IRQ |______ IRQ enable (0=disable)
; 27_ | BSP7 | BSP6 | BSP5 | BSP4 | BSP3 | BSP2 | BSP1 | BSP0 |______ Sprite/Bgnd Priority
; 28_ | MCS7 | MCS6 | MCS5 | MCS4 | MCS3 | MCS2 | MCS1 | MCS0 |______ Multicolor Sprite Sel
; 29_ | S7Ex | S6Ex | S5Ex | S4Ex | S3Ex | S2Ex | S1Ex | S0Ex |______ Sprite X expand
; 30_ | SS7 | SS6 | SS5 | SS4 | SS3 | SS2 | SS1 | SS0 |______ S/S Collision latch
; 31_ | SB7 | SB6 | SB5 | SB4 | SB3 | SB2 | SB1 | SB0 |______ S/B Collision latch
; 32_ | -- | -- | -- | -- | | | | |______ Border Color
; 33_ | -- | -- | -- | -- | | | | |______ Background Color #0
; 34_ | -- | -- | -- | -- | | | | |______ Background Color #1
; 35_ | -- | -- | -- | -- | | | | |______ Background Color #2
; 36_ | -- | -- | -- | -- | | | | |______ Background Color #3
; 37_ | -- | -- | -- | -- | | | | |______ Sprite Multicolor #0
; 38_ | -- | -- | -- | -- | | | | |______ Sprite Multicolor #1
; 39_ | -- | -- | -- | -- | | | | |______ Sprite 0 Color
; 40_ | -- | -- | -- | -- | | | | |______ Sprite 1 Color
; 41_ | -- | -- | -- | -- | | | | |______ Sprite 2 Color
; 42_ | -- | -- | -- | -- | | | | |______ Sprite 3 Color
; 43_ | -- | -- | -- | -- | | | | |______ Sprite 4 Color
; 44_ | -- | -- | -- | -- | | | | |______ Sprite 5 Color
; 45_ | -- | -- | -- | -- | | | | |______ Sprite 6 Color
; 46_ | -- | -- | -- | -- | | | | |______ Sprite 7 Color
; 47_ | -- | -- | -- | -- | -- | K2 | K1 | K0 |______ Keyboard lines (c128 keypad)
; 48_ | -- | -- | -- | -- | -- | -- | TEST | 2MHz |______ Clock speed
; |-------------------------------------------------------|
.page
; 6581 SID REGISTER MAP
;
; REG # _______________________________________________________
; 0_ | F7 | F6 | F5 | F4 | F3 | F2 | F1 | F0 |______ Frequency lo Voice-1
; 1_ | F15 | F14 | F13 | F12 | F11 | F10 | F9 | F8 |______ Frequency hi
; 2_ | PW7 | PW6 | PW5 | PW4 | PW3 | PW2 | PW1 | PW0 |______ Pulse Width lo
; 3_ | -- | -- | -- | -- | PW11 | PW10 | PW9 | PW8 |______ Pulse Width hi
; 4_ | NOISE| PULSE| SAW | TRI | TEST | RING | SYNC | GATE |______ Control Register
; 5_ | ATK3 | ATK2 | ATK1 | ATK0 | DCY3 | DCY2 | DCY1 | DCY0 |______ Attack/Decay
; 6_ | STN3 | STN2 | STN1 | STN0 | RLS3 | RLS2 | RLS1 | RLS0 |______ Sustain/Release
; |------|------|------|------|------|------|------|------|
; 7_ | F7 | F6 | F5 | F4 | F3 | F2 | F1 | F0 |______ Frequency lo Voice-2
; 8_ | F15 | F14 | F13 | F12 | F11 | F10 | F9 | F8 |______ Frequency hi
; 9_ | PW7 | PW6 | PW5 | PW4 | PW3 | PW2 | PW1 | PW0 |______ Pulse Width lo
; 10_ | -- | -- | -- | -- | PW11 | PW10 | PW9 | PW8 |______ Pulse Width hi
; 11_ | NOISE| PULSE| SAW | TRI | TEST | RING | SYNC | GATE |______ Control Register
; 12_ | ATK3 | ATK2 | ATK1 | ATK0 | DCY3 | DCY2 | DCY1 | DCY0 |______ Attack/Decay
; 13_ | STN3 | STN2 | STN1 | STN0 | RLS3 | RLS2 | RLS1 | RLS0 |______ Sustain/Release
; |------|------|------|------|------|------|------|------|
; 14_ | F7 | F6 | F5 | F4 | F3 | F2 | F1 | F0 |______ Frequency lo Voice-3
; 15_ | F15 | F14 | F13 | F12 | F11 | F10 | F9 | F8 |______ Frequency hi
; 16_ | PW7 | PW6 | PW5 | PW4 | PW3 | PW2 | PW1 | PW0 |______ Pulse Width lo
; 17_ | -- | -- | -- | -- | PW11 | PW10 | PW9 | PW8 |______ Pulse Width hi
; 18_ | NOISE| PULSE| SAW | TRI | TEST | RING | SYNC | GATE |______ Control Register
; 19_ | ATK3 | ATK2 | ATK1 | ATK0 | DCY3 | DCY2 | DCY1 | DCY0 |______ Attack/Decay
; 20_ | STN3 | STN2 | STN1 | STN0 | RLS3 | RLS2 | RLS1 | RLS0 |______ Sustain/Release
; |------|------|------|------|------|------|------|------|
; 21_ | -- | -- | -- | -- | -- | FC2 | FC1 | FC0 |______ Frequency lo Filter
; 22_ | FC10 | FC9 | FC8 | FC7 | FC6 | FC5 | FC4 | FC3 |______ Frequency hi
; 23_ | RES3 | RES2 | RES1 | RES0 |FILTEX| FILT3| FILT2| FILT0|______ Resonance/Filter
; 24_ | 3 OFF| HP | BP | LP | VOL3 | VOL2 | VOL1 | VOL0 |______ Mode/Volume
; |------|------|------|------|------|------|------|------|
; 25_ | PX7 | PX6 | PX5 | PX4 | PX3 | PX2 | PX1 | PX0 |______ Pot X Misc.
; 26_ | PY7 | PY6 | PY5 | PY4 | PY3 | PY2 | PY1 | PY0 |______ Pot Y
; 27_ | O7 | O6 | O5 | O4 | O3 | O2 | O1 | O0 |______ Oscillator 3
; 28_ | E7 | E6 | E5 | E4 | E3 | E2 | E1 | E0 |______ Envelope 3
; |-------------------------------------------------------|
.page
; 8563 VDC REGISTER MAP (also 8568, 10/85)
;
; REG # _______________________________________________________
; 0_ | HT7 | HT6 | HT5 | HT4 | HT3 | HT2 | HT1 | HT0 |______ Horizontal Total
; 1_ | HD7 | HD6 | HD5 | HD4 | HD3 | HD2 | HD1 | HD0 |______ Horizontal Displayed
; 2_ | HP7 | HP6 | HP5 | HP4 | HP3 | HP2 | HP1 | HP0 |______ Horizontal Sync Position
; 3_ | VW3 | VW2 | VW1 | VW0 | HW3 | HW2 | HW1 | HW0 |______ Vert/Horz Sync Width
; 4_ | VT7 | VT6 | VT5 | VT4 | VT3 | VT2 | VT1 | VT0 |______ Vertical Total
; 5_ | -- | -- | -- | VA4 | VA3 | VA2 | VA1 | VA0 |______ Vertical Total Adjust
; 6_ | VD7 | VD6 | VD5 | VD4 | VD3 | VD2 | VD1 | VD0 |______ Vertical Displayed
; 7_ | VP7 | VP6 | VP5 | VP4 | VP3 | VP2 | VP1 | VP0 |______ Vertical Sync Position
; 8_ | -- | -- | -- | -- | -- | -- | IM1 | IM0 |______ Interlace Mode
; 9_ | -- | -- | -- | CTV4 | CTV3 | CTV2 | CTV1 | CTV0 |______ Character Total Vertical
; 10_ | -- | CM1 | CM0 | CS4 | CS3 | CS2 | CS1 | CS0 |______ Cursor Mode, Start Scan
; 11_ | -- | -- | -- | CE4 | CE3 | CE2 | CE1 | CE0 |______ Cursor End Scan Line
; 12_ | DS15 | DS14 | DS13 | DS12 | DS11 | DS10 | DS9 | DS8 |______ Display Start Address hi
; 13_ | DS7 | DS6 | DS5 | DS4 | DS3 | DS2 | DS1 | DS0 |______ Display Start Address lo
; 14_ | CP15 | CP14 | CP13 | CP12 | CP11 | CP10 | CP9 | CP8 |______ Cursor Position hi
; 15_ | CP7 | CP6 | CP5 | CP4 | CP3 | CP2 | CP1 | CP0 |______ Cursor Position lo
; 16_ | LPV7 | LPV6 | LPV5 | LPV4 | LPV3 | LPV2 | LPV1 | LPV0 |______ Light Pen Vertical
; 17_ | LPH7 | LPH6 | LPH5 | LPH4 | LPH3 | LPH2 | LPH1 | LPH0 |______ Light Pen Horizontal
; 18_ | UA15 | UA14 | UA13 | UA12 | UA11 | UA10 | UA9 | UA8 |______ Update Address hi
; 19_ | UA7 | UA6 | UA5 | UA4 | UA3 | UA2 | UA1 | UA0 |______ Update Address lo
; 20_ | AA15 | AA14 | AA13 | AA12 | AA11 | AA10 | AA9 | AA8 |______ Attribute Start Adr hi
; 21_ | AA7 | AA6 | AA5 | AA4 | AA3 | AA2 | AA1 | AA0 |______ Attribute Start Adr lo
; 22_ | CTH3 | CTH2 | CTH1 | CTH0 | CDH3 | CDH2 | CDH1 | CDH0 |______ Character Tot(h), Dsp(v)
; 23_ | -- | -- | -- | CDV4 | CDV3 | CDV2 | CDV1 | CDV0 |______ Character Dsp(v)
; 24_ | COPY | RVS |CBRATE| VSS4 | VSS3 | VSS2 | VSS1 | VSS0 |______ Vertical smooth scroll
; 25_ | TEXT | ATR | SEMI | DBL | HSS3 | HSS2 | HSS1 | HSS0 |______ Horizontal smooth scroll
; 26_ | FG3 | FG2 | FG1 | FG0 | BG3 | BG2 | BG1 | BG0 |______ Foregnd/Bgnd Color
; 27_ | AI7 | AI6 | AI5 | AI4 | AI3 | AI2 | AI1 | AI0 |______ Address Increment / Row
; 28_ | CB15 | CB14 | CB13 | RAM | -- | -- | -- | -- |______ Character Base Address
; 29_ | -- | -- | -- | UL4 | UL3 | UL2 | UL1 | UL0 |______ Underline scan line
; 30_ | WC7 | WC6 | WC5 | WC4 | WC3 | WC2 | WC1 | WC0 |______ Word Count
; 31_ | DA7 | DA6 | DA5 | DA4 | DA3 | DA2 | DA1 | DA0 |______ Data
; 32_ | BA15 | BA14 | BA13 | BA12 | BA11 | BA10 | BA9 | BA8 |______ Block Start Address hi
; 33_ | BA7 | BA6 | BA5 | BA4 | BA3 | BA2 | BA1 | BA0 |______ Block Start Address lo
; 34_ | DEB7 | DEB6 | DEB5 | DEB4 | DEB3 | DEB2 | DEB1 | DEB0 |______ Display Enable Begin
; 35_ | DEE7 | DEE6 | DEE5 | DEE4 | DEE3 | DEE2 | DEE1 | DEE0 |______ Display Enable End
; 36_ | -- | -- | -- | -- | DRR3 | DRR2 | DRR1 | DRR0 |______ DRAM Refresh rate
; 37_ | HSYNC| VSYNC| -- | -- | -- | -- | -- | -- |______ Horz, Vert Sync Polarity
; |-------------------------------------------------------|
;
; (Register 37 appears on device 8568 only)
;
; Description of MAPPED registers:
; _______________________________________________________
; $D600 -> address (write): | -- | -- | R5 | R4 | R3 | R2 | R1 | R0 |
; status (read) : |STATUS| LP |VBLANK| -- | -- | VER2 | VER1 | VER0 |
; | | | | | | | | |
; $D601 -> data (r/w) : | D7 | D6 | D5 | D4 | D3 | D3 | D2 | D0 |
; |-------------------------------------------------------|
; _______________________________________________________
; ATTRIBUTE byte layout | ALT | RVS | UL | FLASH| R | G | B | I |
; |-------------------------------------------------------|
.page
; EXPLANATION OF VARIOUS KERNAL/EDITOR FLAG BYTES, ETC.
;
; Symbol Description
; 7 6 5 4 3 2 1 0
; _________________________________________________________
; D6510 | -- | (in) | (out)| (in) | (out)| (out)| (out)| (out)|
; | | | | | | | | |
; R6510 | -- |CAPKEY|CASMTR|CASSEN|CASWRT|CHAREN|VICNYB| uPNYB|
; | | | | | | | | |
; LOCKS | CASE | CTL-S| -- | -- | -- | -- | -- | -- |
; | | | | | | | | |
; SCROLL | OFF |LINKER| | | | | | |
; | | | | | | | | |
; SHFLAG | -- | -- | -- | ALT | ALPHA| CTRL | C= | SHIFT|
; | | | | | | | | |
; RPTFLG | ALL | NONE | -- | -- | -- | -- | -- | -- |
; | | | | | | | | |
; BLNON | ON | BLNK | -- | -- | -- | -- | -- | -- |
; | | | | | | | | |
; BEEPER | ON | -- | -- | -- | -- | -- | -- | -- |
; | | | | | | | | |
; GRAPHM | MCM | SPLIT| BMM | -- | -- | -- | -- | -- |
; | | | | | | | | |
; MODE | 40/80| -- | -- | -- | -- | -- | -- | -- |
; | | | | | | | | |
; INIT_ |CHRSET| CINT | -- | -- | -- | -- | -- | BASIC|
; STATUS |-------------------------------------------------------|
; The following SYMBOLS are used by the c/128 EDITOR. Note that the
; EDITOR irq VIC screen handler depends upon them. In most cases the
; contents of these locations will be placed directly into the appropriate
; register and should be used by the user instead of the actual register.
; GRAPHM ....... See above. If = $FF then editor leaves VIC alone.
; CHAREN ....... Mask for R6510 /charen bit.
; VM1 .......... VIC text mode Video Matrix & Character Base pointer.
; VM2 .......... VIC graphic mode Video Matrix & Bit Map pointer.
; VM3 .......... 8563 text display base address.
; VM4 .......... 8563 attribute base address.
; SPLIT ........ If split screen mode, contains value for 'middle' raster IRQ.
; CURMOD ....... 8563 cursor mode.
; PAUSE ........ Control-S in effect flag. Is = $13 if so.
; Some insight into KERNAL symbols:
; INIT_STATUS .. See also above. Lets system know what has been initialized
; and what hasn't. Set to $00 by a reset but untouched by NMI.
; SYSTEM_VECTOR. Where the kernal goes when it has to go somewhere. It's set
; to BASIC COLD at reset. BASIC itself sets it to BASIC WARM
; after it has inited. The MONITOR respects it too.
; SYSTEM ....... Vector in RAM1 at $FFF8. Set at powerup to C128MODE, user may
; redirect it to his code. Taken at RESET always, providing
; user with control (protection) from reset.