Mmu Namespace Reference

Variables
label	CONFIGURATION = $D500
label	PRECONFIG_A = $D501
label	PRECONFIG_B = $D502
label	PRECONFIG_C = $D503
label	PRECONFIG_D = $D504
label	MODE_CONFIG = $D505
label	RAM_CONFIG = $D506
label	PAGE0_PAGE_POINTER = $D507
label	PAGE0_BLOCK_POINTER = $D508
label	PAGE1_PAGE_POINTER = $D509
label	PAGE1_BLOCK_POINTER = $D50A
label	MMU_VERSION = $D50B
label	LOAD_CONFIGURATION = $FF00
label	LOAD_PRECONFIG_A = $FF01
label	LOAD_PRECONFIG_B = $FF02
label	LOAD_PRECONFIG_C = $FF03
label	LOAD_PRECONFIG_D = $FF04
label	IO_ROM = %00000000
label	IO_RAM = %00000001
label	ROM_LOW_ROM = %00000000
label	ROM_LOW_RAM = %00000010
label	ROM_MID_ROM = %00000000
label	ROM_MID_INT = %00000100
label	ROM_MID_EXT = %00001000
label	ROM_MID_RAM = %00001100
label	ROM_HI = %00000000
label	ROM_HI_INT = %00010000
label	ROM_HI_EXT = %00100000
label	ROM_HI_RAM = %00110000
label	RAM0 = %00000000
label	RAM1 = %01000000
label	CPU_Z80 = %00000000
label	CPU_8502 = %00000001
label	FASTSERIALINPUT = %00000000
label	FASTSERIALOUTPUT = %00001000
label	GAME_LOW = %00000000
label	GAME_HI = %00010000
label	EXROM_LOW = %00000000
label	EXROM_HI = %00100000
label	KERNAL_128 = %00000000
label	KERNAL_64 = %01000000
label	COLS_80 = %00000000
label	COLS_40 = %10000000
label	COMMON_RAM_1K = %00000000
label	COMMON_RAM_4K = %00000001
label	COMMON_RAM_8K = %00000010
label	COMMON_RAM_16K = %00000011
label	COMMON_RAM_UNUSED = %00000000
label	COMMON_RAM_BOTTOM = %00000100
label	COMMON_RAM_TOP = %00001000
label	COMMON_RAM_BOTH = COMMON_RAM_BOTTOM | COMMON_RAM_TOP
label	VIC_BANK_ON_RAM_0 = %00000000
label	VIC_BANK_ON_RAM_1 = %01000000
label	VIC_BANK_ON_RAM_2 = %10000000
label	VIC_BANK_ON_RAM_3 = %11000000

Variable Documentation

CONFIGURATION

label CONFIGURATION = $D500

Configuration register https://c128lib.github.io/Reference/D500#D500

PRECONFIG_A

label PRECONFIG_A = $D501

Preconfiguration register A https://c128lib.github.io/Reference/D500#D501

PRECONFIG_B

label PRECONFIG_B = $D502

Preconfiguration register B https://c128lib.github.io/Reference/D500#D502

PRECONFIG_C

label PRECONFIG_C = $D503

Preconfiguration register C https://c128lib.github.io/Reference/D500#D503

PRECONFIG_D

label PRECONFIG_D = $D504

Preconfiguration register D https://c128lib.github.io/Reference/D500#D504

MODE_CONFIG

label MODE_CONFIG = $D505

Mode configuration register https://c128lib.github.io/Reference/D500#D505

RAM_CONFIG

label RAM_CONFIG = $D506

RAM configuration register https://c128lib.github.io/Reference/D500#D506

PAGE0_PAGE_POINTER

label PAGE0_PAGE_POINTER = $D507

Page 0 pointer https://c128lib.github.io/Reference/D500#D507

PAGE0_BLOCK_POINTER

label PAGE0_BLOCK_POINTER = $D508

Page 0 block pointer https://c128lib.github.io/Reference/D500#D508

PAGE1_PAGE_POINTER

label PAGE1_PAGE_POINTER = $D509

Page 1 pointer https://c128lib.github.io/Reference/D500#D509

PAGE1_BLOCK_POINTER

label PAGE1_BLOCK_POINTER = $D50A

Page 1 block pointer https://c128lib.github.io/Reference/D500#D50A

MMU_VERSION

label MMU_VERSION = $D50B

Version register https://c128lib.github.io/Reference/D500#D50B

LOAD_CONFIGURATION

label LOAD_CONFIGURATION = $FF00

Configuration register https://c128lib.github.io/Reference/E000#FF00

LOAD_PRECONFIG_A

label LOAD_PRECONFIG_A = $FF01

Load configuration register A https://c128lib.github.io/Reference/E000#FF01

LOAD_PRECONFIG_B

label LOAD_PRECONFIG_B = $FF02

Load configuration register B https://c128lib.github.io/Reference/E000#FF02

LOAD_PRECONFIG_C

label LOAD_PRECONFIG_C = $FF03

Load configuration register C https://c128lib.github.io/Reference/E000#FF03

LOAD_PRECONFIG_D

label LOAD_PRECONFIG_D = $FF04

Load configuration register D https://c128lib.github.io/Reference/E000#FF04

IO_ROM

label IO_ROM = %00000000

Mask for configuration bit 0 to set ROM active on address $D000-$DFFF

IO_RAM

label IO_RAM = %00000001

Mask for configuration bit 0 to set RAM active on address $D000-$DFFF

ROM_LOW_ROM

label ROM_LOW_ROM = %00000000

Mask for configuration bit 1 to set ROM active on address $4000-$7FFF (Basic low rom)

ROM_LOW_RAM

label ROM_LOW_RAM = %00000010

Mask for configuration bit 1 to set RAM active on address $4000-$7FFF (Basic low rom)

ROM_MID_ROM

label ROM_MID_ROM = %00000000

Mask for configuration bits 2-3 to set ROM active on upper portion of BASIC ROM ($8000-$AFFF), plus monitor ROM ($B000-$BFFF)

ROM_MID_INT

label ROM_MID_INT = %00000100

Mask for configuration bits 2-3 to set internal function ROM: refers to ROM in the free ROM socket on the 128 circuit board

ROM_MID_EXT

label ROM_MID_EXT = %00001000

Mask for configuration bits 2-3 to set external function ROM: refers to ROM in a cartridge plugged into the expansion port.

ROM_MID_RAM

label ROM_MID_RAM = %00001100

Mask for configuration bits 2-3 to set RAM active on upper portion of BASIC ROM ($8000-$AFFF), plus monitor ROM ($B000-$BFFF)

ROM_HI

label ROM_HI = %00000000

Mask for configuration bits 4-5 to set ROM active on screen editor ROM ($C000-$CFFF), character ROM ($D000-$DFFF), Kemal ROM ($E000-$FFFF)

ROM_HI_INT

label ROM_HI_INT = %00010000

Mask for configuration bits 4-5 to set internal function ROM: refers to ROM in the free ROM socket on the 128 circuit board.

ROM_HI_EXT

label ROM_HI_EXT = %00100000

Mask for configuration bits 4-5 to set external function ROM: refers to ROM in a cartridge plugged into the expansion port.

ROM_HI_RAM

label ROM_HI_RAM = %00110000

Mask for configuration bits 4-5 to set RAM active on screen editor ROM ($C000-$CFFF), character ROM ($D000-$DFFF), Kemal ROM ($E000-$FFFF)

RAM0

label RAM0 = %00000000

Mask for configuration bit 6 to set block 0 active

RAM1

label RAM1 = %01000000

Mask for configuration bit 6 to set block 1 active

CPU_Z80

label CPU_Z80 = %00000000

Mask for bit 0 for selecting Z80 cpu to run

CPU_8502

label CPU_8502 = %00000001

Mask for bit 0 for selecting 8502 cpu to run

FASTSERIALINPUT

label FASTSERIALINPUT = %00000000

Mask for bit 3 for selecting fast serial input

FASTSERIALOUTPUT

label FASTSERIALOUTPUT = %00001000

Mask for bit 3 for selecting fast serial output

GAME_LOW

label GAME_LOW = %00000000

Mask for bit 4 for GAME pin low

GAME_HI

label GAME_HI = %00010000

Mask for bit 4 for GAME pin high

EXROM_LOW

label EXROM_LOW = %00000000

Mask for bit 5 for EXROM pin low

EXROM_HI

label EXROM_HI = %00100000

Mask for bit 5 for EXROM pin high

KERNAL_128

label KERNAL_128 = %00000000

Mask for bit 6 for selecting 128 Kernal rom

KERNAL_64

label KERNAL_64 = %01000000

Mask for bit 6 for selecting 64 Kernal rom

COLS_80

label COLS_80 = %00000000

Mask for bit 7 for selecting 40/80 keyboard key switch status to 80 col

COLS_40

label COLS_40 = %10000000

Mask for bit 7 for selecting 40/80 keyboard key switch status to 40 col

COMMON_RAM_1K

label COMMON_RAM_1K = %00000000

Mask for bits 0-1 to set 1k of common ram

COMMON_RAM_4K

label COMMON_RAM_4K = %00000001

Mask for bits 0-1 to set 4k of common ram

COMMON_RAM_8K

label COMMON_RAM_8K = %00000010

Mask for bits 0-1 to set 8k of common ram

COMMON_RAM_16K

label COMMON_RAM_16K = %00000011

Mask for bits 0-1 to set 16k of common ram

COMMON_RAM_UNUSED

label COMMON_RAM_UNUSED = %00000000

Mask for bits 2-3 to disable common ram

COMMON_RAM_BOTTOM

label COMMON_RAM_BOTTOM = %00000100

Mask for bits 2-3 to set common ram on bottom (near $0000)

COMMON_RAM_TOP

label COMMON_RAM_TOP = %00001000

Mask for bits 2-3 to set common ram on top (near $FFFF)

COMMON_RAM_BOTH

label COMMON_RAM_BOTH = COMMON_RAM_BOTTOM | COMMON_RAM_TOP

Mask for bits 2-3 to set common ram on bottom and top

VIC_BANK_ON_RAM_0

label VIC_BANK_ON_RAM_0 = %00000000

Mask for bit 7 to set Vic bank on ram block 0

VIC_BANK_ON_RAM_1

label VIC_BANK_ON_RAM_1 = %01000000

Mask for bit 7 to set Vic bank on ram block 1

VIC_BANK_ON_RAM_2

label VIC_BANK_ON_RAM_2 = %10000000

Mask for bit 7 to set Vic bank on ram block 2

VIC_BANK_ON_RAM_3

label VIC_BANK_ON_RAM_3 = %11000000

Mask for bit 7 to set Vic bank on ram block 3