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ecp5: Replace '-dsp' with inverse logic '-nodsp' to match synth_xilinx 

Signed-off-by: David Shah <dave@ds0.me>
This commit is contained in:
David Shah 2019-08-08 15:18:59 +01:00
parent cb84ed2326
commit 0492b8b541
1 changed files with 11 additions and 11 deletions
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22
techlibs/ecp5/synth_ecp5.cc
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@ -89,8 +89,8 @@ struct SynthEcp5Pass : public ScriptPass
log(" generate an output netlist (and BLIF file) suitable for VPR\n");
log(" (this feature is experimental and incomplete)\n");
log("\n");
log(" -dsp\n");
log(" map multipliers to MULT18X18D (EXPERIMENTAL)\n");
log(" -nodsp\n");
log(" do not map multipliers to MULT18X18D\n");
log("\n");
log("\n");
log("The following commands are executed by this synthesis command:\n");
@ -99,7 +99,7 @@ struct SynthEcp5Pass : public ScriptPass
}
string top_opt, blif_file, edif_file, json_file;
bool noccu2, nodffe, nobram, nolutram, nowidelut, flatten, retime, abc2, abc9, dsp, vpr;
bool noccu2, nodffe, nobram, nolutram, nowidelut, flatten, retime, abc2, abc9, nodsp, vpr;
void clear_flags() YS_OVERRIDE
{
@ -117,7 +117,7 @@ struct SynthEcp5Pass : public ScriptPass
abc2 = false;
vpr = false;
abc9 = false;
dsp = false;
nodsp = false;
}
void execute(std::vector<std::string> args, RTLIL::Design *design) YS_OVERRIDE
@ -196,8 +196,8 @@ struct SynthEcp5Pass : public ScriptPass
abc9 = true;
continue;
}
if (args[argidx] == "-dsp") {
dsp = true;
if (args[argidx] == "-nodsp") {
nodsp = true;
continue;
}
break;
@ -247,11 +247,11 @@ struct SynthEcp5Pass : public ScriptPass
run("techmap -map +/cmp2lut.v -D LUT_WIDTH=4");
run("opt_expr");
run("opt_clean");
if (dsp) {
run("techmap -map +/mul2dsp.v -D DSP_A_MAXWIDTH=18 -D DSP_B_MAXWIDTH=18 -D DSP_A_MINWIDTH=2 -D DSP_B_MINWIDTH=2 -D DSP_NAME=$__MUL18X18");
run("clean");
run("techmap -map +/ecp5/dsp_map.v");
run("chtype -set $mul t:$__soft_mul","(if -dsp)");
if (!nodsp) {
run("techmap -map +/mul2dsp.v -D DSP_A_MAXWIDTH=18 -D DSP_B_MAXWIDTH=18 -D DSP_A_MINWIDTH=2 -D DSP_B_MINWIDTH=2 -D DSP_NAME=$__MUL18X18", "(unless -nodsp)");
run("clean", "(unless -nodsp)");
run("techmap -map +/ecp5/dsp_map.v", "(unless -nodsp)");
run("chtype -set $mul t:$__soft_mul", "(unless -nodsp)");
}
run("alumacc");
run("opt");