bslathi19/PeakRDL-regblock
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Add counter support

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This commit is contained in:
Alex Mykyta
2021-12-11 20:41:49 -08:00
parent f5b12253ad
commit 9eddc9b60f
40 changed files with 1133 additions and 349 deletions
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56
peakrdl/regblock/field_logic/templates/counter_macros.sv Normal file
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{% macro up_counter(field) -%}
if({{field_logic.get_counter_incr_strobe(node)}}) begin // increment
{%- if field_logic.counter_incrsaturates(node) %}
if((({{node.width+1}})'(next_c) + {{field_logic.get_counter_incrvalue(node)}}) > {{field_logic.get_counter_incrsaturate_value(node)}}) begin // up-counter saturated
next_c = {{field_logic.get_counter_incrsaturate_value(node)}};
end else begin
next_c = next_c + {{field_logic.get_counter_incrvalue(node)}};
end
{%- else %}
field_combo.{{field_path}}.overflow = ((({{node.width+1}})'(next_c) + {{field_logic.get_counter_incrvalue(node)}}) > {{get_value(2**node.width - 1)}});
next_c = next_c + {{field_logic.get_counter_incrvalue(node)}};
{%- endif %}
load_next_c = '1;
{%- if not field_logic.counter_incrsaturates(node) %}
end else begin
field_combo.{{field_path}}.overflow = '0;
{%- endif %}
end
field_combo.{{field_path}}.incrthreshold = (field_storage.{{field_path}} >= {{field_logic.get_counter_incrthreshold_value(node)}});
{%- if field_logic.counter_incrsaturates(node) %}
field_combo.{{field_path}}.incrsaturate = (field_storage.{{field_path}} >= {{field_logic.get_counter_incrsaturate_value(node)}});
if(next_c > {{field_logic.get_counter_incrsaturate_value(node)}}) begin
next_c = {{field_logic.get_counter_incrsaturate_value(node)}};
load_next_c = '1;
end
{%- endif %}
{%- endmacro %}
{% macro down_counter(field) -%}
if({{field_logic.get_counter_decr_strobe(node)}}) begin // decrement
{%- if field_logic.counter_decrsaturates(node) %}
if(({{node.width+1}})'(next_c) < ({{field_logic.get_counter_decrvalue(node)}} + {{field_logic.get_counter_decrsaturate_value(node)}})) begin // down-counter saturated
next_c = {{field_logic.get_counter_decrsaturate_value(node)}};
end else begin
next_c = next_c - {{field_logic.get_counter_decrvalue(node)}};
end
{%- else %}
field_combo.{{field_path}}.underflow = (next_c < ({{field_logic.get_counter_decrvalue(node)}}));
next_c = next_c - {{field_logic.get_counter_decrvalue(node)}};
{%- endif %}
load_next_c = '1;
{%- if not field_logic.counter_decrsaturates(node) %}
end else begin
field_combo.{{field_path}}.underflow = '0;
{%- endif %}
end
field_combo.{{field_path}}.decrthreshold = (field_storage.{{field_path}} <= {{field_logic.get_counter_decrthreshold_value(node)}});
{%- if field_logic.counter_decrsaturates(node) %}
field_combo.{{field_path}}.decrsaturate = (field_storage.{{field_path}} <= {{field_logic.get_counter_decrsaturate_value(node)}});
if(next_c < {{field_logic.get_counter_decrsaturate_value(node)}}) begin
next_c = {{field_logic.get_counter_decrsaturate_value(node)}};
load_next_c = '1;
end
{%- endif %}
{%- endmacro %}