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chisel3

printf

object printf

Prints a message in simulation

See apply methods for use

Source
Printf.scala
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  1. final def !=(arg0: Any): Boolean
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  4. def apply(pable: Printable)(implicit sourceInfo: SourceInfo, compileOptions: CompileOptions): Unit

    Prints a message in simulation

    Prints a message in simulation

    Prints a message every cycle. If defined within the scope of a when block, the message will only be printed on cycles that the when condition is true.

    Does not fire when in reset (defined as the encapsulating Module's reset). If your definition of reset is not the encapsulating Module's reset, you will need to gate this externally.

    May be called outside of a Module (like defined in a function), uses the current default clock and reset. These can be overriden with withClockAndReset.

    pable

    Printable to print

    See also

    Printable documentation

  5. def apply(fmt: String, data: Bits*)(implicit sourceInfo: SourceInfo, compileOptions: CompileOptions): Unit

    Prints a message in simulation

    Prints a message in simulation

    Prints a message every cycle. If defined within the scope of a when block, the message will only be printed on cycles that the when condition is true.

    Does not fire when in reset (defined as the encapsulating Module's reset). If your definition of reset is not the encapsulating Module's reset, you will need to gate this externally.

    May be called outside of a Module (like defined in a function), uses the current default clock and reset. These can be overriden with withClockAndReset.

    Format Strings

    This method expects a format string and an argument list in a similar style to printf in C. The format string expects a String that may contain format specifiers For example:

    printf("myWire has the value %d\n", myWire)

    This prints the string "myWire has the value " followed by the current value of myWire (in decimal, followed by a newline.

    There must be exactly as many arguments as there are format specifiers

    Format Specifiers

    Format specifiers are prefixed by %. If you wish to print a literal %, use %%.

    • %d - Decimal
    • %x - Hexadecimal
    • %b - Binary
    • %c - 8-bit Character
    • %n - Name of a signal
    • %N - Full name of a leaf signal (in an aggregate)
    fmt

    printf format string

    data

    format string varargs containing data to print

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