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Initial Commit - Forked from PeakRDL-regblock @ a440cc19769069be831d267505da4f3789a26695

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Arnav Sacheti
2025-10-10 22:28:36 -07:00
commit 9bf5cd1e68
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0
tests/test_counter_saturate/__init__.py Normal file
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tests/test_counter_saturate/regblock.rdl Normal file
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addrmap top {
field strobe_t {
sw=w; hw=r; singlepulse;
};
reg {
field {
sw=r; hw=r; counter;
incrsaturate;
decrsaturate;
} count[8] = 0;
strobe_t increment[9:9] = 0;
strobe_t decrement[10:10] = 0;
strobe_t clear[11:11] = 0;
strobe_t set[12:12] = 0;
field {
sw=rw; hw=na;
} step[23:16] = 1;
count->incr = increment;
count->decr = decrement;
count->hwclr = clear;
count->hwset = set;
count->incrvalue = step;
count->decrvalue = step;
} saturate_via_bool @ 0x0;
reg {
field {
sw=r; hw=r; counter;
incrsaturate = 250;
decrsaturate = 5;
} count[8] = 0;
strobe_t increment[9:9] = 0;
strobe_t decrement[10:10] = 0;
strobe_t clear[11:11] = 0;
strobe_t set[12:12] = 0;
field {
sw=rw; hw=na;
} step[23:16] = 1;
count->incr = increment;
count->decr = decrement;
count->hwclr = clear;
count->hwset = set;
count->decrvalue = step;
count->incrvalue = count->decrvalue;
} saturate_via_const @ 0x4;
reg {
field {
sw=r; hw=r; counter;
} count[8] = 0;
strobe_t increment[9:9] = 0;
strobe_t decrement[10:10] = 0;
strobe_t clear[11:11] = 0;
strobe_t set[12:12] = 0;
field {
sw=rw; hw=na;
} step[23:16] = 1;
count->incr = increment;
count->decr = decrement;
count->hwclr = clear;
count->hwset = set;
count->incrvalue = step;
count->decrvalue = count->incrvalue;
} saturate_via_ref @ 0x8;
reg {
field {
sw=rw; hw=na;
} min[8] = 0x00;
field {
sw=rw; hw=na;
} max[8] = 0xFF;
} saturate_control @ 0xC;
saturate_via_ref.count -> decrsaturate = saturate_control.min;
saturate_via_ref.count -> incrsaturate = saturate_control.max;
};

214
tests/test_counter_saturate/tb_template.sv Normal file
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{% extends "lib/tb_base.sv" %}
{% block seq %}
{% sv_line_anchor %}
##1;
cb.rst <= '0;
##1;
// counter controls are the same for each sub-test
`define incr (1<<9)
`define decr (1<<10)
`define clr (1<<11)
`define set (1<<12)
`define step(n) (n<<16)
//--------------------------------------------------------------------------
// Test incrsaturate = true; decrsaturate = true;
//--------------------------------------------------------------------------
cpuif.assert_read('h0, 'h00, 'hFF);
// incrsaturate via +1
cpuif.write('h0, `set);
cpuif.assert_read('h0, 'hFF, 'hFF);
cpuif.write('h0, `decr + `step(1));
cpuif.assert_read('h0, 'hFE, 'hFF);
cpuif.write('h0, `incr + `step(1));
cpuif.assert_read('h0, 'hFF, 'hFF);
cpuif.write('h0, `incr + `step(1));
cpuif.assert_read('h0, 'hFF, 'hFF);
// decrsaturate via +1
cpuif.write('h0, `clr);
cpuif.assert_read('h0, 'h00, 'hFF);
cpuif.write('h0, `incr + `step(1));
cpuif.assert_read('h0, 'h01, 'hFF);
cpuif.write('h0, `decr + `step(1));
cpuif.assert_read('h0, 'h00, 'hFF);
cpuif.write('h0, `decr + `step(1));
cpuif.assert_read('h0, 'h00, 'hFF);
// incrsaturate via larger steps
cpuif.write('h0, `set);
cpuif.assert_read('h0, 'hFF, 'hFF);
cpuif.write('h0, `decr + `step(1));
cpuif.assert_read('h0, 'hFE, 'hFF);
cpuif.write('h0, `incr + `step(2));
cpuif.assert_read('h0, 'hFF, 'hFF);
cpuif.write('h0, `incr + `step(3));
cpuif.assert_read('h0, 'hFF, 'hFF);
cpuif.write('h0, `incr + `step(255));
cpuif.assert_read('h0, 'hFF, 'hFF);
// decrsaturate via larger steps
cpuif.write('h0, `clr);
cpuif.assert_read('h0, 'h00, 'hFF);
cpuif.write('h0, `incr + `step(1));
cpuif.assert_read('h0, 'h01, 'hFF);
cpuif.write('h0, `decr + `step(2));
cpuif.assert_read('h0, 'h00, 'hFF);
cpuif.write('h0, `decr + `step(3));
cpuif.assert_read('h0, 'h00, 'hFF);
cpuif.write('h0, `decr + `step(255));
cpuif.assert_read('h0, 'h00, 'hFF);
//--------------------------------------------------------------------------
// Test incrsaturate = 250; decrsaturate = 5;
//--------------------------------------------------------------------------
cpuif.assert_read('h4, 'h00, 'hFF);
// incrsaturate via +1
cpuif.write('h4, `set);
cpuif.assert_read('h4, 'hFF, 'hFF);
cpuif.write('h4, `decr + `step(1));
cpuif.assert_read('h4, 'hFE, 'hFF);
cpuif.write('h4, `incr + `step(1));
cpuif.assert_read('h4, 'hFA, 'hFF);
cpuif.write('h4, `incr + `step(1));
cpuif.assert_read('h4, 'hFA, 'hFF);
// decrsaturate via +1
cpuif.write('h4, `clr);
cpuif.assert_read('h4, 'h00, 'hFF);
cpuif.write('h4, `incr + `step(1));
cpuif.assert_read('h4, 'h01, 'hFF);
cpuif.write('h4, `decr + `step(1));
cpuif.assert_read('h4, 'h05, 'hFF);
cpuif.write('h4, `decr + `step(1));
cpuif.assert_read('h4, 'h05, 'hFF);
// incrsaturate via larger steps
cpuif.write('h4, `set);
cpuif.assert_read('h4, 'hFF, 'hFF);
cpuif.write('h4, `decr + `step(1));
cpuif.assert_read('h4, 'hFE, 'hFF);
cpuif.write('h4, `incr + `step(2));
cpuif.assert_read('h4, 'hFA, 'hFF);
cpuif.write('h4, `incr + `step(3));
cpuif.assert_read('h4, 'hFA, 'hFF);
cpuif.write('h4, `incr + `step(255));
cpuif.assert_read('h4, 'hFA, 'hFF);
// decrsaturate via larger steps
cpuif.write('h4, `clr);
cpuif.assert_read('h4, 'h00, 'hFF);
cpuif.write('h4, `incr + `step(1));
cpuif.assert_read('h4, 'h01, 'hFF);
cpuif.write('h4, `decr + `step(2));
cpuif.assert_read('h4, 'h05, 'hFF);
cpuif.write('h4, `decr + `step(3));
cpuif.assert_read('h4, 'h05, 'hFF);
cpuif.write('h4, `decr + `step(255));
cpuif.assert_read('h4, 'h05, 'hFF);
//--------------------------------------------------------------------------
// Test incrsaturate = <ref 255>; decrsaturate = <ref 0>;
//--------------------------------------------------------------------------
cpuif.assert_read('h8, 'h00, 'hFF);
// incrsaturate via +1
cpuif.write('h8, `set);
cpuif.assert_read('h8, 'hFF, 'hFF);
cpuif.write('h8, `decr + `step(1));
cpuif.assert_read('h8, 'hFE, 'hFF);
cpuif.write('h8, `incr + `step(1));
cpuif.assert_read('h8, 'hFF, 'hFF);
cpuif.write('h8, `incr + `step(1));
cpuif.assert_read('h8, 'hFF, 'hFF);
// decrsaturate via +1
cpuif.write('h8, `clr);
cpuif.assert_read('h8, 'h00, 'hFF);
cpuif.write('h8, `incr + `step(1));
cpuif.assert_read('h8, 'h01, 'hFF);
cpuif.write('h8, `decr + `step(1));
cpuif.assert_read('h8, 'h00, 'hFF);
cpuif.write('h8, `decr + `step(1));
cpuif.assert_read('h8, 'h00, 'hFF);
// incrsaturate via larger steps
cpuif.write('h8, `set);
cpuif.assert_read('h8, 'hFF, 'hFF);
cpuif.write('h8, `decr + `step(1));
cpuif.assert_read('h8, 'hFE, 'hFF);
cpuif.write('h8, `incr + `step(2));
cpuif.assert_read('h8, 'hFF, 'hFF);
cpuif.write('h8, `incr + `step(3));
cpuif.assert_read('h8, 'hFF, 'hFF);
cpuif.write('h8, `incr + `step(255));
cpuif.assert_read('h8, 'hFF, 'hFF);
// decrsaturate via larger steps
cpuif.write('h8, `clr);
cpuif.assert_read('h8, 'h00, 'hFF);
cpuif.write('h8, `incr + `step(1));
cpuif.assert_read('h8, 'h01, 'hFF);
cpuif.write('h8, `decr + `step(2));
cpuif.assert_read('h8, 'h00, 'hFF);
cpuif.write('h8, `decr + `step(3));
cpuif.assert_read('h8, 'h00, 'hFF);
cpuif.write('h8, `decr + `step(255));
cpuif.assert_read('h8, 'h00, 'hFF);
//--------------------------------------------------------------------------
// Test incrsaturate = <ref 250>; decrsaturate = <ref 5>;
//--------------------------------------------------------------------------
cpuif.write('hc, 'hFA_05);
cpuif.assert_read('h4, 'h05, 'hFF);
// incrsaturate via +1
cpuif.write('h8, `set);
cpuif.assert_read('h8, 'hFF, 'hFF);
cpuif.write('h8, `decr + `step(1));
cpuif.assert_read('h8, 'hFE, 'hFF);
cpuif.write('h8, `incr + `step(1));
cpuif.assert_read('h8, 'hFA, 'hFF);
cpuif.write('h8, `incr + `step(1));
cpuif.assert_read('h8, 'hFA, 'hFF);
// decrsaturate via +1
cpuif.write('h8, `clr);
cpuif.assert_read('h8, 'h00, 'hFF);
cpuif.write('h8, `incr + `step(1));
cpuif.assert_read('h8, 'h01, 'hFF);
cpuif.write('h8, `decr + `step(1));
cpuif.assert_read('h8, 'h05, 'hFF);
cpuif.write('h8, `decr + `step(1));
cpuif.assert_read('h8, 'h05, 'hFF);
// incrsaturate via larger steps
cpuif.write('h8, `set);
cpuif.assert_read('h8, 'hFF, 'hFF);
cpuif.write('h8, `decr + `step(1));
cpuif.assert_read('h8, 'hFE, 'hFF);
cpuif.write('h8, `incr + `step(2));
cpuif.assert_read('h8, 'hFA, 'hFF);
cpuif.write('h8, `incr + `step(3));
cpuif.assert_read('h8, 'hFA, 'hFF);
cpuif.write('h8, `incr + `step(255));
cpuif.assert_read('h8, 'hFA, 'hFF);
// decrsaturate via larger steps
cpuif.write('h8, `clr);
cpuif.assert_read('h8, 'h00, 'hFF);
cpuif.write('h8, `incr + `step(1));
cpuif.assert_read('h8, 'h01, 'hFF);
cpuif.write('h8, `decr + `step(2));
cpuif.assert_read('h8, 'h05, 'hFF);
cpuif.write('h8, `decr + `step(3));
cpuif.assert_read('h8, 'h05, 'hFF);
cpuif.write('h8, `decr + `step(255));
cpuif.assert_read('h8, 'h05, 'hFF);
{% endblock %}

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tests/test_counter_saturate/testcase.py Normal file
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from ..lib.sim_testcase import SimTestCase
class Test(SimTestCase):
def test_dut(self):
self.run_test()