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synth_nexus: Initial implementation

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Signed-off-by: David Shah <dave@ds0.me>
This commit is contained in:
David Shah 2020-10-01 11:15:54 +01:00
parent f9ed9786bf
commit 4d584d9319
30 changed files with 12528 additions and 0 deletions
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60
techlibs/nexus/brams.txt Normal file
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bram $__NX_PDP16K
init 1
abits 9 @a9d36
dbits 36 @a9d36
abits 10 @a10d18
dbits 18 @a10d18
abits 11 @a11d9
dbits 9 @a11d9
abits 12 @a12d4
dbits 4 @a12d4
abits 13 @a13d2
dbits 2 @a13d2
abits 14 @a14d1
dbits 1 @a14d1
groups 2
ports 1 1
wrmode 1 0
enable 4 1 @a9d36
enable 2 1 @a10d18
enable 1 1 @a11d9 @a12d4 @a13d2 @a14d1
transp 0 0
clocks 2 3
clkpol 2 3
endbram
match $__NX_PDP16K
# implicitly requested RAM or ROM
attribute !syn_ramstyle syn_ramstyle=auto
attribute !syn_romstyle syn_romstyle=auto
attribute !ram_block
attribute !rom_block
attribute !logic_block
min bits 2048
min efficiency 5
shuffle_enable A
or_next_if_better
endmatch
match $__NX_PDP16K
# explicitly requested RAM
attribute syn_ramstyle=block_ram ram_block
attribute !syn_romstyle
attribute !rom_block
attribute !logic_block
min wports 1
shuffle_enable A
or_next_if_better
endmatch
match $__NX_PDP16K
# explicitly requested ROM
attribute syn_romstyle=ebr rom_block
attribute !syn_ramstyle
attribute !ram_block
attribute !logic_block
max wports 0
shuffle_enable A
endmatch