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-rw-r--r--techlibs/common/prep.cc6
-rw-r--r--techlibs/ice40/cells_sim.v11
-rw-r--r--techlibs/xilinx/drams.txt4
-rw-r--r--techlibs/xilinx/synth_xilinx.cc11
4 files changed, 24 insertions, 8 deletions
diff --git a/techlibs/common/prep.cc b/techlibs/common/prep.cc
index 86fb4d6c6..cdd21c3b3 100644
--- a/techlibs/common/prep.cc
+++ b/techlibs/common/prep.cc
@@ -195,9 +195,11 @@ struct PrepPass : public ScriptPass
run(nokeepdc ? "opt" : "opt -keepdc");
if (!ifxmode) {
if (help_mode)
- run("wreduce [-memx]");
- else
+ run("wreduce -keepdc [-memx]");
+ else if (nokeepdc)
run(memxmode ? "wreduce -memx" : "wreduce");
+ else
+ run(memxmode ? "wreduce -keepdc -memx" : "wreduce -keepdc");
}
if (!nomemmode) {
run(string("memory_dff") + (help_mode ? " [-nordff]" : nordff ? " -nordff" : ""));
diff --git a/techlibs/ice40/cells_sim.v b/techlibs/ice40/cells_sim.v
index 00843b97c..e89405b22 100644
--- a/techlibs/ice40/cells_sim.v
+++ b/techlibs/ice40/cells_sim.v
@@ -930,10 +930,21 @@ endmodule
(* blackbox *)
module SB_HFOSC(
+ input TRIM0,
+ input TRIM1,
+ input TRIM2,
+ input TRIM3,
+ input TRIM4,
+ input TRIM5,
+ input TRIM6,
+ input TRIM7,
+ input TRIM8,
+ input TRIM9,
input CLKHFPU,
input CLKHFEN,
output CLKHF
);
+parameter TRIM_EN = "0b0";
parameter CLKHF_DIV = "0b00";
endmodule
diff --git a/techlibs/xilinx/drams.txt b/techlibs/xilinx/drams.txt
index e6635d0e2..91632bcee 100644
--- a/techlibs/xilinx/drams.txt
+++ b/techlibs/xilinx/drams.txt
@@ -26,11 +26,15 @@ bram $__XILINX_RAM128X1D
endbram
match $__XILINX_RAM64X1D
+ min bits 5
+ min wports 1
make_outreg
or_next_if_better
endmatch
match $__XILINX_RAM128X1D
+ min bits 9
+ min wports 1
make_outreg
endmatch
diff --git a/techlibs/xilinx/synth_xilinx.cc b/techlibs/xilinx/synth_xilinx.cc
index c20cac09b..a293081f1 100644
--- a/techlibs/xilinx/synth_xilinx.cc
+++ b/techlibs/xilinx/synth_xilinx.cc
@@ -229,11 +229,6 @@ struct SynthXilinxPass : public ScriptPass
run("dff2dffe");
run("opt -full");
- if (!vpr || help_mode)
- run("techmap -map +/xilinx/arith_map.v");
- else
- run("techmap -map +/xilinx/arith_map.v -D _EXPLICIT_CARRY");
-
if (!nosrl || help_mode) {
// shregmap operates on bit-level flops, not word-level,
// so break those down here
@@ -242,7 +237,11 @@ struct SynthXilinxPass : public ScriptPass
run("shregmap -tech xilinx -minlen 3", "(skip if '-nosrl')");
}
- run("techmap");
+ if (!vpr || help_mode)
+ run("techmap -map +/techmap.v -map +/xilinx/arith_map.v");
+ else
+ run("techmap -map +/techmap.v +/xilinx/arith_map.v -D _EXPLICIT_CARRY");
+
run("opt -fast");
}