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nextpnr/himbaechel/uarch/ng-ultra/location_map.cc

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Adding NanoXplore NG-Ultra support (#1397) * ng-ultra: new architecture * Implementation as in D2 deliverable * Support for nxdesignsuite-24.0.0.0-20240429T102300 * Save memory by directly outputing json * Add support for bidirectional IOs * cleanup * Create BFRs properly * Add IOM insertion * Cleanup * Block certain pips depending of DDFR mode * Add LUT bypass to improve routability * Add bypass for CSC mode of GCK * Fix IOM case * Initial memory support * Better RF/XRF handling * fix * RF placement and legalization * Disconnect non available ports for NX_RAM * cleanup * Add RFB/RAM context support for latest release * Remove ports that must not be used * Proper port used only on RFB * Add structure for clock sinks * Use cell type where applicable * Add clock sinks for other cell types * Validation check fixes * Commented too restrictive placement * Added more crossbar wire type * Hande IO termination input * Fail early due to NX tools limitation for now * Validations and fixes for RAM I/Os * Fix for latest version of tools * Use ctx->idf where applicable * warn if RAM ports are not actually used * Fix IOM packing * Fix CY packing * Change how constants are handled on CY * Post placement optimization for CY * Address comments for PR * pack and export GCK, WFG and PLL * Cover more global routing cases * Constraing to location if provided * Place at LOC * Pack and export DSP * wip * wip * notes * wip * wip * Validate DSPs * DSP cascading * Check mandatory parameters for DSP * existing gck * wip * export all the rest for bitstream * CDC packing * add more sinks * place FIFO * map rest of FIFO ports * enable pll by default * cleanup * Initial XLUT support * Fix statistics * Properly duplicate GCKs * RRSTO and WRSTO are not used on XFIFO * Fix for latest version of JSON format * Implement GCK limitations * cleanup * cleanup * Add more signals and use lowskew name * cleanup code a bit * Fix wfb * detect cascaded GCKs * Handle DFR * Route dfr clock properly * Cleanup * Cleanup bitstream code * Review issues addressed * Move helper routines * Expose private members for unit tests * cleanup * remove scale factor * make all location helper arrays static * Addressed review comments * Support post-routing CSC and SCC * Support NX_BFF * Place CSS and SCC only on allowed locations * Support latest Impulse * ng_ultra: Expand bounding box further for left-edge IO Signed-off-by: gatecat <gatecat@ds0.me> * Export all IO parameters in bitstream * Handle new CSV order or parameters and additional validation * Add some more undocumented values for CSV * Support for old and new CSV formats * Initial DDFR support * Display warning message once per file * Address review issues * Fix crash on memory access * Make boundbox fit NG-Ultra internal design * Update attributes after dff rewrite * Implement basic NG-Ultra LUT-DFF unit tests * Always use first seen xbar input Signed-off-by: gatecat <gatecat@ds0.me> * Simplified crossbar pip detection * Change order to prevent issues with some unconnected constants * Pack LUT and multiple DFF in stripe * Place DFF chains * Improve large DFF chains * Rename to pack_dff_chains * Better use XLUTs when possible * pack output DFF together with XLUT * option to disable XLUT optimiziations * Make more optimizations optional * fix to use pre-increment * GCK for lowskew signals * Bugfix for nets that are not part of lowskew network * Fix bitstream export for PLL cell * Remove separate route lowskew * Allow WFG mode 2 * Merge inverter into GCK * Add CSC per TILE when needed * Improve reusage of existing cell for CSC * Take preferred CSC * Cleanup * When in place CSC size not important * Cleanup * Reset and Load restriction * make csc optimisation optional * Proper count for IO resources * Detect when there is no next cell for DSP chain * Do not incorporate loops in XLUT * Check if output exists * Update copyright for delivery * Make building NG-Ultra chip database optional, follow filename convention * Ported drawing code to new API * Update expandBoundingBox for NG-Ultra * Copyright and license update * Add README information * cleanup and constids * Using ctx->idf where applicable * remove if_using_basecluster * refactor extra data usage * refactor to use create_cell_ptr only * optimized getCSC * optimize critical path a bit * clangformat * disable clangformat where applicable --------- Signed-off-by: gatecat <gatecat@ds0.me> Co-authored-by: Lofty <dan.ravensloft@gmail.com> Co-authored-by: gatecat <gatecat@ds0.me>
2024-12-04 16:00:05 +08:00
/*
* nextpnr -- Next Generation Place and Route
*
* Copyright (C) 2024 The Project Beyond Authors.
*
* Permission to use, copy, modify, and/or distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*
*/
#include "location_map.h"
NEXTPNR_NAMESPACE_BEGIN
namespace {
/* clang-format off */
const Loc ng_ultra_place_cy_map[24] = {
{ 0, 1, 0}, // S1 0 -> S2 0 CY24->CY1
{ 0, 0, -1}, // S1 1 -> S1 0 CY23->CY24
{ 0, 0, -1}, // S1 2 -> S1 1 CY22->CY23
{ 0, 0, -1}, // S1 3 -> S1 2 CY21->CY22
{-1, 0, +3}, // S5 0 -> S1 1 CY20->CY21
{ 0, 0, -1}, // S5 1 -> S5 0 CY19->CY20
{ 0, 0, -1}, // S5 2 -> S5 1 CY18->CY19
{ 0, 0, -1}, // S5 3 -> S5 2 CY17->CY18
{-1, 0, +3}, // S9 0 -> S5 1 CY16->CY17
{ 0, 0, -1}, // S9 1 -> S9 0 CY15->CY16
{ 0, 0, -1}, // S9 2 -> S9 1 CY14->CY15
{ 0, 0, -1}, // S9 3 -> S9 2 CY13->CY14
{ 0, 0, +1}, // S2 0 -> S2 1 CY1->CY2
{ 0, 0, +1}, // S2 1 -> S2 2 CY2->CY3
{ 0, 0, +1}, // S2 2 -> S2 3 CY3->CY4
{ 1, 0, -3}, // S2 3 -> S6 0 CY4->CY5
{ 0, 0, +1}, // S6 0 -> S6 1 CY5->CY6
{ 0, 0, +1}, // S6 1 -> S6 2 CY6->CY7
{ 0, 0, +1}, // S6 2 -> S6 3 CY7->CY8
{ 1, 0, -3}, // S6 3 -> S10 0 CY8->CY9
{ 0, 0, +1}, // S10 0 -> S10 1 CY9->CY10
{ 0, 0, +1}, // S10 1 -> S10 2 CY10->CY11
{ 0, 0, +1}, // S10 2 -> S10 3 CY11->CY12
{ 0, -1, 0}, // S10 3 -> S9 3 CY12->CY13
};
const Loc ng_ultra_place_xrf[] = {
{-1, 0, 1}, // I/O1
{-1, 0, 2}, // I/O2
{-1, 0, 5}, // I/O3
{-1, 0, 6}, // I/O4
{-1, 0, 7}, // I/O5
{-1, 0, 9}, // I/O6
{-1, 0, 10}, // I/O7
{-1, 0, 13}, // I/O8
{-1, 0, 14}, // I/O9
{-1, 0, 15}, // I/O10
{-1, 0, 16}, // I/O11
{-1, 0, 17}, // I/O12
{-1, 0, 18}, // I/O13
{-1, 0, 21}, // I/O14
{-1, 0, 24}, // I/O15
{-1, 0, 25}, // I/O16
{-1, 0, 26}, // I/O17
{-1, 0, 29}, // I/O18
{+1, 0, 1}, // I/O19
{+1, 0, 2}, // I/O20
{+1, 0, 5}, // I/O21
{+1, 0, 6}, // I/O22
{+1, 0, 7}, // I/O23
{+1, 0, 9}, // I/O24
{+1, 0, 10}, // I/O25
{+1, 0, 13}, // I/O26
{+1, 0, 14}, // I/O27
{+1, 0, 15}, // I/O28
{+1, 0, 16}, // I/O29
{+1, 0, 17}, // I/O30
{+1, 0, 18}, // I/O31
{+1, 0, 21}, // I/O32
{+1, 0, 24}, // I/O33
{+1, 0, 25}, // I/O34
{+1, 0, 26}, // I/O35
{+1, 0, 29}, // I/O36
{-1, 0, 4}, // RA1
{-1, 0, 12}, // RA2
{-1, 0, 20}, // RA3
{-1, 0, 27}, // RA4
{-1, 0, 31}, // RA5
{+1, 0, 4}, // RA6
{+1, 0, 12}, // RA7
{+1, 0, 20}, // RA8
{+1, 0, 27}, // RA9
{+1, 0, 31}, // RA10
{-1, 0, 3}, // WA1
{-1, 0, 11}, // WA2
{-1, 0, 19}, // WA3
{-1, 0, 23}, // WA4
{-1, 0, 28}, // WA5
{+1, 0, 3}, // WA6
{-1, 0, 0}, // WE
{-1, 0, 8}, // WEA
};
const Loc ng_ultra_place_cdc1[] = {
{+1, 0, 1}, // AI1
{+1, 0, 2}, // AI2
{+1, 0, 9}, // AI3
{+1, 0, 17}, // AI4
{+1, 0, 18}, // AI5
{+1, 0, 25}, // AI6
{+1, 0, 3}, // BI1
{+1, 0, 10}, // BI2
{+1, 0, 11}, // BI3
{+1, 0, 19}, // BI4
{+1, 0, 26}, // BI5
{+1, 0, 27}, // BI6
{ 0, 0, 22}, // ASRSTI
{ 0, 0, 30}, // ADRSTI
{+1, 0, 24}, // BSRSTI
{+1, 0, 8}, // BDRSTI
};
const Loc ng_ultra_place_cdc2[] = {
{-1, 0, 4}, // AI1
{-1, 0, 5}, // AI2
{-1, 0, 12}, // AI3
{-1, 0, 20}, // AI4
{-1, 0, 21}, // AI5
{-1, 0, 28}, // AI6
{-1, 0, 6}, // BI1
{-1, 0, 13}, // BI2
{-1, 0, 14}, // BI3
{-1, 0, 22}, // BI4
{-1, 0, 29}, // BI5
{-1, 0, 30}, // BI6
{ 0, 0, 22}, // ASRSTI
{ 0, 0, 30}, // ADRSTI
{-1, 0, 23}, // BSRSTI
{-1, 0, 7}, // BDRSTI
};
const Loc ng_ultra_place_xcdc[] = {
{ 0, 0, 1}, // AI1
{ 0, 0, 2}, // AI2
{ 0, 0, 9}, // AI3
{ 0, 0, 17}, // AI4
{ 0, 0, 18}, // AI5
{ 0, 0, 25}, // AI6
{ 0, 0, 4}, // BI1
{ 0, 0, 5}, // BI2
{ 0, 0, 12}, // BI3
{ 0, 0, 20}, // BI4
{ 0, 0, 21}, // BI5
{ 0, 0, 28}, // BI6
{-1, 0, 22}, // ASRSTI
{-1, 0, 30}, // ADRSTI
{+1, 0, 22}, // BSRSTI
{+1, 0, 30}, // BDRSTI
{ 0, 0, 3}, // CI1
{ 0, 0, 10}, // CI2
{ 0, 0, 11}, // CI3
{ 0, 0, 19}, // CI4
{ 0, 0, 26}, // CI5
{ 0, 0, 27}, // CI6
{ 0, 0, 6}, // DI1
{ 0, 0, 13}, // DI2
{ 0, 0, 14}, // DI3
{ 0, 0, 22}, // DI4
{ 0, 0, 29}, // DI5
{ 0, 0, 30}, // DI6
{ 0, 0, 24}, // CSRSTI
{ 0, 0, 8}, // CDRSTI
{ 0, 0, 23}, // DSRSTI
{ 0, 0, 7}, // DDRSTI
};
const Loc ng_ultra_place_fifo1[] = {
{-1, 0, 1}, // I/O1
{-1, 0, 2}, // I/O2
{-1, 0, 5}, // I/O3
{-1, 0, 6}, // I/O4
{-1, 0, 7}, // I/O5
{-1, 0, 9}, // I/O6
{-1, 0, 10}, // I/O7
{-1, 0, 13}, // I/O8
{-1, 0, 14}, // I/O9
{-1, 0, 15}, // I/O10
{-1, 0, 16}, // I/O11
{-1, 0, 17}, // I/O12
{-1, 0, 18}, // I/O13
{-1, 0, 21}, // I/O14
{-1, 0, 24}, // I/O15
{-1, 0, 25}, // I/O16
{-1, 0, 26}, // I/O17
{-1, 0, 29}, // I/O18
{ 0, 0, 0}, // I/O19
{ 0, 0, 0}, // I/O20
{ 0, 0, 0}, // I/O21
{ 0, 0, 0}, // I/O22
{ 0, 0, 0}, // I/O23
{ 0, 0, 0}, // I/O24
{ 0, 0, 0}, // I/O25
{ 0, 0, 0}, // I/O26
{ 0, 0, 0}, // I/O27
{ 0, 0, 0}, // I/O28
{ 0, 0, 0}, // I/O29
{ 0, 0, 0}, // I/O30
{ 0, 0, 0}, // I/O31
{ 0, 0, 0}, // I/O32
{ 0, 0, 0}, // I/O33
{ 0, 0, 0}, // I/O34
{ 0, 0, 0}, // I/O35
{ 0, 0, 0}, // I/O36
{ 0, 0, 3}, // RAI1/RAO1
{ 0, 0, 10}, // RAI2/RAO2
{ 0, 0, 11}, // RAI3/RAO3
{ 0, 0, 19}, // RAI4/RAO4
{ 0, 0, 26}, // RAI5/RAO5
{ 0, 0, 27}, // RAI6/RAO6
{ 0, 0, 0}, // RAI7/RAO7
{ 0, 0, 1}, // WAI1/WAO1
{ 0, 0, 2}, // WAI2/WAO2
{ 0, 0, 9}, // WAI3/WAO3
{ 0, 0, 17}, // WAI4/WAO4
{ 0, 0, 18}, // WAI5/WAO5
{ 0, 0, 25}, // WAI6/WAO6
{ 0, 0, 0}, // WAI7/WAO7
{-1, 0, 0}, // WE
{-1, 0, 8}, // WEA
{-1, 0, 22}, // WRSTI1/WRSTO
{-1, 0, 30}, // RRSTI1/RRSTO
{ 0, 0, 8}, // WRSTI2
{ 0, 0, 24}, // RRSTI2
{ 0, 0, 0}, // WRSTI3/WRSTO
{ 0, 0, 0}, // RRSTI3/RRSTO
{ 0, 0, 0}, // WRSTI4
{ 0, 0, 0}, // RRSTI4
{-1, 0, 3}, // WEQ
{-1, 0, 4}, // REQ
// {-1, 0, 11}, WEQ
// {-1, 0, 12}, REQ
// {-1, 0, 19}, WEQ
// {-1, 0, 20}, REQ
// {-1, 0, 27}, WEQ
// {-1, 0, 28}, REQ
{ 0, 0, 0}, // WEQ2
{ 0, 0, 0}, // REQ2
};
const Loc ng_ultra_place_fifo2[] = {
{+1, 0, 1}, // I/O1
{+1, 0, 2}, // I/O2
{+1, 0, 5}, // I/O3
{+1, 0, 6}, // I/O4
{+1, 0, 7}, // I/O5
{+1, 0, 9}, // I/O6
{+1, 0, 10}, // I/O7
{+1, 0, 13}, // I/O8
{+1, 0, 14}, // I/O9
{+1, 0, 15}, // I/O10
{+1, 0, 16}, // I/O11
{+1, 0, 17}, // I/O12
{+1, 0, 18}, // I/O13
{+1, 0, 21}, // I/O14
{+1, 0, 24}, // I/O15
{+1, 0, 25}, // I/O16
{+1, 0, 26}, // I/O17
{+1, 0, 29}, // I/O18
{ 0, 0, 0}, // I/O19
{ 0, 0, 0}, // I/O20
{ 0, 0, 0}, // I/O21
{ 0, 0, 0}, // I/O22
{ 0, 0, 0}, // I/O23
{ 0, 0, 0}, // I/O24
{ 0, 0, 0}, // I/O25
{ 0, 0, 0}, // I/O26
{ 0, 0, 0}, // I/O27
{ 0, 0, 0}, // I/O28
{ 0, 0, 0}, // I/O29
{ 0, 0, 0}, // I/O30
{ 0, 0, 0}, // I/O31
{ 0, 0, 0}, // I/O32
{ 0, 0, 0}, // I/O33
{ 0, 0, 0}, // I/O34
{ 0, 0, 0}, // I/O35
{ 0, 0, 0}, // I/O36
{ 0, 0, 6}, // RAI1/RAO1
{ 0, 0, 13}, // RAI2/RAO2
{ 0, 0, 14}, // RAI3/RAO3
{ 0, 0, 22}, // RAI4/RAO4
{ 0, 0, 29}, // RAI5/RAO5
{ 0, 0, 30}, // RAI6/RAO6
{ 0, 0, 0}, // RAI7/RAO7
{ 0, 0, 4}, // WAI1/WAO1
{ 0, 0, 5}, // WAI2/WAO2
{ 0, 0, 12}, // WAI3/WAO3
{ 0, 0, 20}, // WAI4/WAO4
{ 0, 0, 21}, // WAI5/WAO5
{ 0, 0, 28}, // WAI6/WAO6
{ 0, 0, 0}, // WAI7/WAO7
{+1, 0, 0}, // WE
{+1, 0, 8}, // WEA
{+1, 0, 22}, // WRSTI1/WRSTO
{+1, 0, 30}, // RRSTI1/RRSTO
{ 0, 0, 7}, // WRSTI2
{ 0, 0, 23}, // RRSTI2
{ 0, 0, 0}, // WRSTI3/WRSTO
{ 0, 0, 0}, // RRSTI3/RRSTO
{ 0, 0, 0}, // WRSTI4
{ 0, 0, 0}, // RRSTI4
{+1, 0, 3}, // WEQ
{+1, 0, 4}, // REQ
// {+1, 0, 11}, WEQ
// {+1, 0, 12}, REQ
// {+1, 0, 19}, WEQ
// {+1, 0, 20}, REQ
// {+1, 0, 27}, WEQ
// {+1, 0, 28}, REQ
{ 0, 0, 0}, // WEQ2
{ 0, 0, 0}, // REQ2
};
const Loc ng_ultra_place_xfifo[] = {
{-1, 0, 1}, // I/O1
{-1, 0, 2}, // I/O2
{-1, 0, 5}, // I/O3
{-1, 0, 6}, // I/O4
{-1, 0, 7}, // I/O5
{-1, 0, 9}, // I/O6
{-1, 0, 10}, // I/O7
{-1, 0, 13}, // I/O8
{-1, 0, 14}, // I/O9
{-1, 0, 15}, // I/O10
{-1, 0, 16}, // I/O11
{-1, 0, 17}, // I/O12
{-1, 0, 18}, // I/O13
{-1, 0, 21}, // I/O14
{-1, 0, 24}, // I/O15
{-1, 0, 25}, // I/O16
{-1, 0, 26}, // I/O17
{-1, 0, 29}, // I/O18
{+1, 0, 1}, // I/O19
{+1, 0, 2}, // I/O20
{+1, 0, 5}, // I/O21
{+1, 0, 6}, // I/O22
{+1, 0, 7}, // I/O23
{+1, 0, 9}, // I/O24
{+1, 0, 10}, // I/O25
{+1, 0, 13}, // I/O26
{+1, 0, 14}, // I/O27
{+1, 0, 15}, // I/O28
{+1, 0, 16}, // I/O29
{+1, 0, 17}, // I/O30
{+1, 0, 18}, // I/O31
{+1, 0, 21}, // I/O32
{+1, 0, 24}, // I/O33
{+1, 0, 25}, // I/O34
{+1, 0, 26}, // I/O35
{+1, 0, 29}, // I/O36
{ 0, 0, 3}, // RAI1/RAO1
{ 0, 0, 10}, // RAI2/RAO2
{ 0, 0, 11}, // RAI3/RAO3
{ 0, 0, 19}, // RAI4/RAO4
{ 0, 0, 26}, // RAI5/RAO5
{ 0, 0, 27}, // RAI6/RAO6
{ 0, 0, 6}, // RAI7/RAO7
{ 0, 0, 1}, // WAI1/WAO1
{ 0, 0, 2}, // WAI2/WAO2
{ 0, 0, 9}, // WAI3/WAO3
{ 0, 0, 17}, // WAI4/WAO4
{ 0, 0, 18}, // WAI5/WAO5
{ 0, 0, 25}, // WAI6/WAO6
{ 0, 0, 4}, // WAI7/WAO7
{-1, 0, 0}, // WE
{-1, 0, 8}, // WEA
{-1, 0, 22}, // WRSTI1/WRSTO
{-1, 0, 30}, // RRSTI1/RRSTO
{ 0, 0, 8}, // WRSTI2
{ 0, 0, 24}, // RRSTI2
{+1, 0, 22}, // WRSTI3/WRSTO
{+1, 0, 30}, // RRSTI3/RRSTO
{ 0, 0, 7}, // WRSTI4
{ 0, 0, 23}, // RRSTI4
{-1, 0, 3}, // WEQ1
{-1, 0, 4}, // REQ1
// {-1, 0, 11}, WEQ1
// {-1, 0, 12}, REQ1
// {-1, 0, 19}, WEQ1
// {-1, 0, 20}, REQ1
// {-1, 0, 27}, WEQ1
// {-1, 0, 28}, REQ1
{+1, 0, 3}, // WEQ2
{+1, 0, 4}, // REQ2
// {+1, 0, 11}, WEQ2
// {+1, 0, 12}, REQ2
// {+1, 0, 19}, WEQ2
// {+1, 0, 20}, REQ2
// {+1, 0, 27}, WEQ2
// {+1, 0, 28}, REQ2
};
/* clang-format on */
}; // namespace
namespace ng_ultra {
Loc getNextLocInDSPChain(const NgUltraImpl *impl, Loc loc)
{
BelId bel = impl->ctx->getBelByLocation(loc);
if (impl->dsp_cascade.count(bel) == 0) {
loc.z = -1; // End of chain
return loc;
}
BelId dsp = impl->dsp_cascade.at(bel);
return impl->ctx->getBelLocation(dsp);
}
Loc getNextLocInCYChain(Loc loc)
{
int section = (loc.x % 4 - 1 + 3 * (loc.y % 4)) * 4 + loc.z - BEL_CY_Z;
Loc result = ng_ultra_place_cy_map[section];
result.x += loc.x;
result.y += loc.y;
result.z += loc.z;
return result;
}
Loc getNextLocInLUTChain(Loc loc)
{
Loc result = loc;
result.x = loc.x;
result.y = loc.y;
result.z = (loc.z + 8) % 32; // BEL_LUT_Z is 0
return result;
}
Loc getNextLocInDFFChain(Loc loc)
{
Loc result = loc;
if (loc.z == 31) {
if ((loc.x & 3) == 3) {
result.z = -1; // End of chain
return result;
}
result.z = 0;
result.x++;
return result;
}
int z = loc.z + 8;
if (z > 31)
z++;
result.z = z % 32; // BEL_LUT_Z is 0
return result;
}
Loc getCYFE(Loc root, int pos)
{
int p[] = {2 - 1, 25 - 1, 10 - 1, 17 - 1};
int cy = root.z - BEL_CY_Z;
Loc result;
result.x = root.x;
result.y = root.y;
result.z = p[pos] + cy * 2;
return result;
}
Loc getXLUTFE(Loc root, int pos)
{
Loc result;
result.x = root.x;
result.y = root.y;
result.z = root.z - BEL_XLUT_Z + 8 * pos;
return result;
}
Loc getXRFFE(Loc root, int pos)
{
Loc result = ng_ultra_place_xrf[pos];
if (root.z == BEL_XRF_Z) {
// XRF1
result.x += root.x;
} else {
// RF1 or RF2
result.x = root.x + ((root.z == BEL_RF_Z) ? -1 : +1);
}
result.y = root.y;
return result;
}
Loc getCDCFE(Loc root, int pos)
{
Loc result;
if (root.z == BEL_CDC_Z) {
result = ng_ultra_place_cdc1[pos];
} else if (root.z == BEL_CDC_Z + 1) {
result = ng_ultra_place_cdc2[pos];
} else if (root.z == BEL_XCDC_Z) {
result = ng_ultra_place_xcdc[pos];
} else {
log_error("Trying to place CDC on wrong location.\n");
}
result.x += root.x;
result.y = root.y;
return result;
}
Loc getFIFOFE(Loc root, int pos)
{
Loc result;
if (root.z == BEL_FIFO_Z) {
result = ng_ultra_place_fifo1[pos];
} else if (root.z == BEL_FIFO_Z + 1) {
result = ng_ultra_place_fifo2[pos];
} else if (root.z == BEL_XFIFO_Z) {
result = ng_ultra_place_xfifo[pos];
} else {
log_error("Trying to place CDC on wrong location.\n");
}
result.x += root.x;
result.y = root.y;
return result;
}
}; // namespace ng_ultra
NEXTPNR_NAMESPACE_END
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