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look at C_I when doing inversion

This commit is contained in:
Miodrag Milanovic 2025-07-04 11:09:33 +02:00
parent e340c8e5e8
commit 04ac025734
1 changed files with 26 additions and 22 deletions
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48
himbaechel/uarch/gatemate/bitstream.cc
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@ -81,12 +81,12 @@ struct BitstreamBackend
return invert;
}
void update_cpe_lt(CellInfo *cell, IdString port, IdString init, dict<IdString, Property> &params)
void update_cpe_lt(CellInfo *cell, IdString port, IdString init, dict<IdString, Property> &params, bool even)
{
unsigned init_val = int_or_default(params, init);
bool invert = need_inversion(cell, port);
if (invert) {
if (port.in(id_IN1, id_IN3, id_IN5, id_IN7))
if (even)
init_val = (init_val & 0b1010) >> 1 | (init_val & 0b0101) << 1;
else
init_val = (init_val & 0b0011) << 2 | (init_val & 0b1100) >> 2;
@ -281,18 +281,22 @@ struct BitstreamBackend
dict<IdString, Property> params = cell.second->params;
Loc l = ctx->getBelLocation(cell.second->bel);
params.erase(id_L2T4_UPPER);
int c_i1 = int_or_default(params, id_C_I1, 0);
int c_i2 = int_or_default(params, id_C_I2, 0);
int c_i3 = int_or_default(params, id_C_I3, 0);
int c_i4 = int_or_default(params, id_C_I4, 0);
if (cell.second->type.in(id_CPE_L2T4, id_CPE_LT_L, id_CPE_LT_U)) {
if (l.z == CPE_LT_U_Z) {
update_cpe_lt(cell.second.get(), id_IN1, id_INIT_L00, params);
update_cpe_lt(cell.second.get(), id_IN2, id_INIT_L00, params);
update_cpe_lt(cell.second.get(), id_IN3, id_INIT_L01, params);
update_cpe_lt(cell.second.get(), id_IN4, id_INIT_L01, params);
update_cpe_lt(cell.second.get(), id_IN1, id_INIT_L00, params, true);
update_cpe_lt(cell.second.get(), c_i1 ? id_PINY1 : id_IN2, id_INIT_L00, params, false);
update_cpe_lt(cell.second.get(), id_IN3, id_INIT_L01, params, true);
update_cpe_lt(cell.second.get(), c_i2 ? id_CINX : id_IN4, id_INIT_L01, params, false);
} else {
// These will be renamed later
update_cpe_lt(cell.second.get(), id_IN1, id_INIT_L00, params);
update_cpe_lt(cell.second.get(), id_IN2, id_INIT_L00, params);
update_cpe_lt(cell.second.get(), id_IN3, id_INIT_L01, params);
update_cpe_lt(cell.second.get(), id_IN4, id_INIT_L01, params);
update_cpe_lt(cell.second.get(), id_IN1, id_INIT_L00, params, true);
update_cpe_lt(cell.second.get(), c_i3 ? id_PINY1 : id_IN2, id_INIT_L00, params, false);
update_cpe_lt(cell.second.get(), id_IN3, id_INIT_L01, params, true);
update_cpe_lt(cell.second.get(), c_i4 ? id_PINX : id_IN4, id_INIT_L01, params, false);
}
}
if (l.z == CPE_LT_FULL_Z) {
@ -302,19 +306,19 @@ struct BitstreamBackend
update_cpe_mux(cell.second.get(), id_IN2, id_INIT_L11, 1, params);
update_cpe_mux(cell.second.get(), id_IN3, id_INIT_L11, 2, params);
update_cpe_mux(cell.second.get(), id_IN4, id_INIT_L11, 3, params);
update_cpe_lt(cell.second.get(), id_IN5, id_INIT_L02, params);
update_cpe_lt(cell.second.get(), id_IN6, id_INIT_L02, params);
update_cpe_lt(cell.second.get(), id_IN7, id_INIT_L03, params);
update_cpe_lt(cell.second.get(), id_IN8, id_INIT_L03, params);
update_cpe_lt(cell.second.get(), id_IN5, id_INIT_L02, params,true);
update_cpe_lt(cell.second.get(), c_i3 ? id_PINY1 : id_IN6, id_INIT_L02, params,false);
update_cpe_lt(cell.second.get(), id_IN7, id_INIT_L03, params,true);
update_cpe_lt(cell.second.get(), c_i4 ? id_PINX : id_IN8, id_INIT_L03, params,false);
} else {
update_cpe_lt(cell.second.get(), id_IN1, id_INIT_L00, params);
update_cpe_lt(cell.second.get(), id_IN2, id_INIT_L00, params);
update_cpe_lt(cell.second.get(), id_IN3, id_INIT_L01, params);
update_cpe_lt(cell.second.get(), id_IN4, id_INIT_L01, params);
update_cpe_lt(cell.second.get(), id_IN5, id_INIT_L02, params);
update_cpe_lt(cell.second.get(), id_IN6, id_INIT_L02, params);
update_cpe_lt(cell.second.get(), id_IN7, id_INIT_L03, params);
update_cpe_lt(cell.second.get(), id_IN8, id_INIT_L03, params);
update_cpe_lt(cell.second.get(), id_IN1, id_INIT_L00, params,true);
update_cpe_lt(cell.second.get(), c_i1 ? id_PINY1 : id_IN2, id_INIT_L00, params,false);
update_cpe_lt(cell.second.get(), id_IN3, id_INIT_L01, params,true);
update_cpe_lt(cell.second.get(), c_i2 ? id_CINX : id_IN4, id_INIT_L01, params,false);
update_cpe_lt(cell.second.get(), id_IN5, id_INIT_L02, params,true);
update_cpe_lt(cell.second.get(), c_i3 ? id_PINY1 : id_IN6, id_INIT_L02, params,false);
update_cpe_lt(cell.second.get(), id_IN7, id_INIT_L03, params,true);
update_cpe_lt(cell.second.get(), c_i4 ? id_PINX : id_IN8, id_INIT_L03, params,false);
}
}
}