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(c) 2013 Mark Watson
I am happy for anyone to use these for non-commercial use.
If my vhdl files are used commercially or sold please contact me for explicit permission at scrameta@gmail.com.
This applies for source and binary form and derived works.

pokey.vhdl
pokey_noise_filter.vhdl
pokey_keyboard_scanner.vhdl
pokey_ps2_decoder.vhdl
pokey_mixer.vhdl
poly_4.vhdl
poly_5.vhdl
poly_17_9.vhdl

gtia.vhdl
gtia_priority.vhdl
gtia_palette.vhdl // Palette data itself from laoo and Altirra
gtia_player.vhdl

antic.vhdl
antic_dma_clock.vhdl
antic_counter.vhdl

pia.vhdl

cpu.vhd
shared_enable.vhdl
irq_glue.vhdl

ps2_keyboard.vhdl

scandoubler.vhdl
scandouble_ram_infer.vhdl

zpu_glue.vhdl
zpu_config_regs.vhdl

// utils
synchronizer.vhdl
delay_line.vhdl
wide_delay_line.vhdl
reg_file.vhdl
enable_divider.vhdl
syncreset_enable_divider.vhd
complete_address_decoder.vhdl
countdown_timer.vhdl
simple_counter.vhdl

// semi de1 specific
sram.vhdl
flashrom.vhdl
sdram_statemachine.vhdl
address_decoder.vhdl

// de1 specific
atari800core.vhd // top level for DE1
i2sslave.vhdl
hexdecoder.vhd
gpio.vhd
ledsw.vhd

// altera megafunctions
pll.vhd
zpu_ram.vhd
zpu_rom.vhd

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(c) Mike Stirling (from Spectrum core)
See header for Mike's copyright note
Parameters modified for my use case

i2c_loader.vhd

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(c) Peter Wendrich
Please contact Peter if you wish to use them. I have permission for use as part of the Atari800 core.

cpu_6510.vhd
cpu_65xx_e.vhd
cpu_65xx_a.vhd

-----------------------------------------------------------------------------------
---- Copyright (c) 2008 Ãvind Harboe <oyvind.harboe zylin.com> ----
---- Copyright (c) 2008 Salvador E. Tropea <salvador inti.gob.ar> ----
---- Copyright (c) 2008 Instituto Nacional de Tecnología Industrial ----
ZPU implementation. See headers for more details
I made a few fixes to make it work for my use case.

zpu_core.vhd
zpupkg.vhd

-----------------------------------------------------------------------------------
(c) Scott Larson
See file header

spi_master.vhd

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zpu/*.[ch]
SD card/OSD
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(c) Mark Watson
Also some portions taken from SDrive, so (c) Bob and Raster

I am happy for these to be used freely for commercial and non-commercial use.

debug.h led.h pause.h regs.h types.h uart.h
bootdump.c debug.c led.c main.c regs.c test.c uart.c

zpuromgen.c

----------------------------------------------------------------------------------
(c) Pascal Stang + Bob and Raster
spi.c
spi.h
mmc.c
mmc.h
mmcconf.h

-----------------------------------------------------------------------------------
(c) ChaN
Petit File System

integer.h
diskio.h
pff.h
pff.c
(2-2/18)