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refactored decoder into decoder dualrail

This commit is contained in:
alexmadison 2022-03-30 11:01:21 +02:00
parent 1707f1043a
commit d10d78347c
1 changed files with 45 additions and 32 deletions
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77
dataflow_neuro/coders.act
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@ -48,6 +48,45 @@ open std::data;
namespace tmpl {
namespace dataflow_neuro {
/**
* Dualrail decoder.
* Nc is the number of dualrail input channels.
* Then builds N output AND gates, connecting to the right input wires.
*/
export template<pint Nc, N>
defproc decoder_dualrail (Mx1of2<Nc> in; bool? out[N]; power supply) {
// signal buffers
sigbuf<N> in_tX[Nc];
sigbuf<N> in_fX[Nc];
(i:Nc:
in_tX[i].supply = supply;
in_tX[i].in = in.d[i].t;
in_fX[i].supply = supply;
in_fX[i].in = in.d[i].f;
)
// AND trees
pint bitval;
andtree<Nc> atree[N];
(k:0..N-1:atree[k].supply = supply;)
(i:0..N-1:
(j:0..Nc-1:
bitval = (i & ( 1 << j )) >> j; // Get binary digit of integer i, column j
[bitval = 1 ->
atree[i].in[j] = in_tX[j].out[i];
// atree[i].in[j] = addr_buf.out.d.d[j].t;
[]bitval = 0 ->
atree[i].in[j] = in_fX[j].out[i];
// atree[i].in[j] = addr_buf.out.d.d[j].f;
[]bitval >= 2 -> {false : "fuck"};
]
atree[i].out = out[i];
)
)
}
/**
* 2D decoder which uses a configurable delay from the VCtrees to buffer ack.
* Nx is the x size of the decoder array
@ -63,9 +102,6 @@ namespace tmpl {
// Buffer to recieve concat(x,y) address packet
buffer<NxC+NyC> addr_buf(.in = in, .reset_B = reset_B, .supply = supply);
// NEED TO BUFFER OUTPUTS FROM BUFFER I RECKON
// Validity trees
vtree<NxC> vtree_x (.supply = supply);
@ -91,37 +127,14 @@ namespace tmpl {
// FOR TESTING PURPOSES
// !!!!!!!!!!!!!!!!
// AND trees
pint bitval;
andtree<NxC> atree_x[Nx];
(k:0..Nx-1:atree_x[k].supply = supply;)
(i:0..Nx-1:
(j:0..NxC-1:
bitval = (i & ( 1 << j )) >> j; // Get binary digit of integer i, column j
[bitval = 1 ->
atree_x[i].in[j] = addr_buf.out.d.d[j].t;
[]bitval = 0 ->
atree_x[i].in[j] = addr_buf.out.d.d[j].f;
[]bitval >= 2 -> {false : "fuck"};
]
atree_x[i].out = outx[i];
)
)
andtree<NyC> atree_y[Ny];
(k:0..Ny-1:atree_y[k].supply = supply;)
(i:0..Ny-1:
(j:0..NyC-1:
bitval = (i & ( 1 << j )) >> j; // Get binary digit of integer i, column j
[bitval = 1 ->
atree_y[i].in[j] = addr_buf.out.d.d[j+NxC].t;
[]bitval = 0 ->
atree_y[i].in[j] = addr_buf.out.d.d[j+NxC].f;
]
atree_y[i].out = outy[i];
)
)
// Decoder X/Y And trees
decoder_dualrail<NxC,Nx> d_dr_x(.out = outx, .supply = supply);
(i:0..NxC-1:d_dr_x.in.d[i] = addr_buf.out.d.d[i];)
decoder_dualrail<NyC,Ny> d_dr_y(.out = outy, .supply = supply);
(i:0..NyC-1:d_dr_y.in.d[i] = addr_buf.out.d.d[i+NxC];)
}