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llhd

llhd - Hardware description language

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llhd is a hardware description language created in 2016.

#996on PLDB 7Years Old 0Books
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Example from the web:
proc %Accumulator.always_comb.227.0 (i1$ %0, i16$ %1, i16$ %2) -> (i16$ %3) { %4: br %body %body: %direction = prb i1$ %0 br %direction, %if_false, %if_true %check: wait %body, %0, %1, %2 %if_true: %result = prb i16$ %2 %increment = prb i16$ %1 %5 = add i16 %result, %increment %6 = const time 0s 1e drv i16$ %3, %5, %6 wait %7 for %6 %if_false: %result1 = prb i16$ %2 %increment1 = prb i16$ %1 %8 = sub i16 %result1, %increment1 %9 = const time 0s 1e drv i16$ %3, %8, %9 wait %10 for %9 %if_exit: br %check %7: br %if_exit %10: br %if_exit } proc %Accumulator.always_ff.228.0 (i1$ %0, i16$ %1) -> (i16$ %2) { %3: br %init %init: %clk = prb i1$ %0 wait %check, %0 %check: %clk1 = prb i1$ %0 %4 = const i1 0 %5 = eq i1 %clk, %4 %6 = neq i1 %clk1, %4 %posedge = and i1 %5, %6 br %posedge, %init, %event %event: %next = prb i16$ %1 %7 = const time 0s 1d drv i16$ %2, %next, %7 br %3 } entity @Accumulator (i1$ %clk, i1$ %direction, i16$ %increment) -> (i16$ %result) { %0 = const i16 0 %next = sig i16 %0 inst %Accumulator.always_comb.227.0 (i1$ %direction, i16$ %increment, i16$ %result) -> (i16$ %next) inst %Accumulator.always_ff.228.0 (i1$ %clk, i16$ %next) -> (i16$ %result) }

Language features

Feature Supported Token Example
Booleans true false
m4sugar.html · llhd.html · xsd.html

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