bslathi19/PeakRDL-regblock
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

Add counter support

Browse Source
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
Download Patch File Download Diff File Expand all files Collapse all files

56
peakrdl/regblock/field_logic/templates/counter_macros.sv Normal file
View File

@@ -0,0 +1,56 @@
{% 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 %}

13
peakrdl/regblock/field_logic/templates/field_storage.sv
View File

@@ -1,7 +1,8 @@
{%- import 'field_logic/templates/counter_macros.sv' as counter_macros with context -%}
// Field: {{node.get_path()}}
always_comb begin
field_combo.{{field_path}}.next = field_storage.{{field_path}};
field_combo.{{field_path}}.load_next = '0;
automatic logic [{{node.width-1}}:0] next_c = field_storage.{{field_path}};
automatic logic load_next_c = '0;
{%- for signal in extra_combo_signals %}
field_combo.{{field_path}}.{{signal.name}} = {{signal.default_assignment}};
{%- endfor %}
@@ -12,6 +13,14 @@ always_comb begin
{%- endfor %}
end
{%- endfor %}
{%- if node.is_up_counter %}
{{counter_macros.up_counter(node)}}
{%- endif %}
{%- if node.is_down_counter %}
{{counter_macros.down_counter(node)}}
{%- endif %}
field_combo.{{field_path}}.next = next_c;
field_combo.{{field_path}}.load_next = load_next_c;
end
always_ff {{get_always_ff_event(resetsignal)}} begin
{% if resetsignal is not none -%}