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README.txt
README.txt
 
 
char_rom_b16.vhd
char_rom_b16.vhd
 
 
clock_gen_TB.vhd
clock_gen_TB.vhd
 
 
clock_gen_TB_runtest.do
clock_gen_TB_runtest.do
 
 
clock_synthesis.vhd
clock_synthesis.vhd
 
 
clock_synthesis_TB.vhd
clock_synthesis_TB.vhd
 
 
clock_synthesis_TB_runtest.do
clock_synthesis_TB_runtest.do
 
 
config.vhd
config.vhd
 
 
constraints.xcf
constraints.xcf
 
 
convert-bits.vhd
convert-bits.vhd
 
 
cpu09.vhd
cpu09.vhd
 
 
fep_toplevel-broken.vhd
fep_toplevel-broken.vhd
 
 
fep_toplevel.vhd
fep_toplevel.vhd
 
 
key_b4.vhd
key_b4.vhd
 
 
keyboard.vhd
keyboard.vhd
 
 
maisforth601.vhd
maisforth601.vhd
 
 
miniUART3.vhd
miniUART3.vhd
 
 
ps2_keyboard.vhd
ps2_keyboard.vhd
 
 
ram2k_b16.vhd
ram2k_b16.vhd
 
 
ram_controller_test_toplevel.vhd
ram_controller_test_toplevel.vhd
 
 
rom.vhd
rom.vhd
 
 
rxunit3.vhd
rxunit3.vhd
 
 
secd_fep_trenz_TB.vhd
secd_fep_trenz_TB.vhd
 
 
secd_fep_trenz_TB_runtest.do
secd_fep_trenz_TB_runtest.do
 
 
secd_fep_trenz_conf.vhd
secd_fep_trenz_conf.vhd
 
 
secd_ram_controller-new.vhd
secd_ram_controller-new.vhd
 
 
secd_ram_controller.vhd
secd_ram_controller.vhd
 
 
secd_ram_controller_TB.vhd
secd_ram_controller_TB.vhd
 
 
secd_ram_controller_TB_runtest.do
secd_ram_controller_TB_runtest.do
 
 
secd_ram_controller_TB_tim_cfg.vhd
secd_ram_controller_TB_tim_cfg.vhd
 
 
secd_trenz.ipf
secd_trenz.ipf
 
 
secd_trenz.ipf_ISE_Backup
secd_trenz.ipf_ISE_Backup
 
 
sim_user_ram.vhd
sim_user_ram.vhd
 
 
trenz-retro-bb.ucf
trenz-retro-bb.ucf
 
 
txunit3.vhd
txunit3.vhd
 
 
user_ram.vhd
user_ram.vhd
 
 
vdu8.vhd
vdu8.vhd
 
 
vdu_TB.vhd
vdu_TB.vhd
 
 
vdu_TB_runtest.do
vdu_TB_runtest.do
 
 

README.txt

The SECD FEP is a variant of System09, written by John Kent.  It is
basically unchanged, but has been reformatted to be easier to read for
me.

Please see http://members.optushome.com.au/jekent/system09/ for details.

In order to be compatible with the memory map of Maisforth, I have
changed the memory map as follows:

0000-3FFF RAM
B000-BFFF I/O
C000-FFFF Maisforth ROM