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This commit is contained in:
Miodrag Milanovic 2025-04-11 17:12:00 +02:00
parent d97ac89560
commit e73a803468
1 changed files with 4 additions and 4 deletions
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8
himbaechel/uarch/gatemate/gatemate.cc
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@ -154,7 +154,7 @@ bool GateMateImpl::getClusterPlacement(ClusterId cluster, BelId root_bel,
return getChildPlacement(root_cell, root_loc, placement);
}
bool invert_count_inversions(Context *ctx, CellInfo *cell, IdString port)
bool need_inversion(Context *ctx, CellInfo *cell, IdString port)
{
PortRef sink;
sink.cell = cell;
@ -192,7 +192,7 @@ void updateLUT(Context *ctx, CellInfo *cell, IdString port, IdString init)
{
if (cell->params.count(init) == 0) return;
unsigned init_val = int_or_default(cell->params, init);
bool invert = invert_count_inversions(ctx, cell, port);
bool invert = need_inversion(ctx, cell, port);
if (invert) {
if (port.in(id_IN1,id_IN3))
init_val = (init_val & 0b1010) >> 1 | (init_val & 0b0101) << 1;
@ -206,7 +206,7 @@ void updateINV(Context *ctx, CellInfo *cell, IdString port, IdString param)
{
if (cell->params.count(param) == 0) return;
unsigned init_val = int_or_default(cell->params, param);
bool invert = invert_count_inversions(ctx, cell, port);
bool invert = need_inversion(ctx, cell, port);
if (invert) {
cell->params[param] = Property(3 - init_val, 2);
}
@ -218,7 +218,7 @@ void updateMUX_INV(Context *ctx, CellInfo *cell, IdString port, IdString param,
Loc l = ctx->getBelLocation(cell->bel);
CellInfo *cell_l = ctx->getBoundBelCell(ctx->getBelByLocation(Loc(l.x,l.y,1)));
unsigned init_val = int_or_default(cell_l->params, param);
bool invert = invert_count_inversions(ctx, cell, port);
bool invert = need_inversion(ctx, cell, port);
if (invert) {
int old = (init_val >> bit) & 1;
int val = (init_val & (~(1 << bit) & 0xf)) | ((!old) << bit);