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Fourth, source level emulation supports neither hierarchy nor re-use of pre-designed blocks. In HDL-based hardware debugging, booting may take the same amount of time which it takes in normal (non-debugging) operation of the electronic system. Although the hardware designs (which were designed in HDL) have been fabricated in integrated circuit products with limited input/output pins, the invention enables the hardware designs within the integrated circuit products to be comprehensively analyzed, diagnosed, and debugged at the HDL level at speed. These pragmas are added to the HDL description such that the behavior of the design of the electronic system is not altered. “Fabrication” is the process of transforming a synthesized and technology mapped design into one or more devices of the target technology. To find the cause we need to first get a better understanding of the symptom. (iii) A TPU can be a configurable finite state machine where trigger events are inputs to the state machine and trigger actions are outputs of the state machine. The “Target Speed” of an electronic system is the speed and/or the speed range the electronic system is specified to run at. Cost analysis during instrumentation can compute and/or estimate the cost of DIC and the impact of the DIC on the HDL design at various levels of detail. It is advantageous for the designer of the electronic system to have the capability to debug both the hardware and software aspects of the electronic system concurrently. For correction of the functional failure, a fix is applied and subsequently tested. One example of such automatic design instrumentation applies certain rules to identify areas for Design Visibility, Design Patching, and/or Design Control. This site contains resources to help you debug stuff — mostly software and electronic hardware, but other stuff, too. For example, a type using a minimum bit-width for encoding signal values could in some target technologies be implemented with less hardware resources than a HDL type using one-hot encoding. For example, an operating system may be booted and many other device drivers may be loaded before a particular device driver and the hardware used by it can be debugged. FIG. In many circumstances, it is not practical to select everything possible for Design Visibility, Design Patching, and/or Design Control due to the overhead of the DIC. For example, the fabrication of ASICs involves manufacturing and the fabrication of FPGAs and PLDs involves device configuration. FIG. Third, store all sample data gained from the operation of the DUT. December 2019 Power analysis of the electronic system needs to know about the realistic stimuli and transitions in the electronic system to come up with an accurate estimation of the power consumption. With hardware we need special measuring equipment, like an oscilloscope for that. While a complete DIC, such as shown in FIG. Commonly, the form of the Hard Block is such that the functionality of the Hard Block can not be altered. “Real-time” means a task, process or response occurs substantially immediately. 17 is a data flow diagram illustrating DIC creation processing according to one embodiment of the invention. There are two lines, line 6 and line 8, which can have a break-point. Examples of functional simulators include VCS and VSS from Synopsys, Inc. in Mountain View, Calif., and ModelSim from Mentor Graphics Corp. in Wilsonville, Oreg. Line numbers have been added to the above example for reference purposes, the line numbers are not part of the Verilog description. Also included could be zero or more references to child hierarchical instance objects (where a child is defined as the hierarchical instance which is instantiated by the instance this hierarchical instance object refers to), an optional name and a reference to a source location object. This functional model is created during behavioral synthesis and requires the existence of functional models of its components. To increase simulation performance some functional simulators additionally make use of special purpose hardware which acts as a co-processor and accelerates the simulation. 60/230,068, filed Aug. 31, 2000, and entitled “HDL-BASED HARDWARE DEBUGGING,” each of which is hereby incorporated by reference herein. The impact of signal noise on the behavior of the electronic system can also be similarly analyzed and diagnosed. For example, in a Verilog design, the HBB of the MDICBB would be the Verilog module which is the top-level module in the design hierarchy—the HBB would be the one module in the design which is not instantiated in the Verilog design. A target environment may comprise both hardware and software. 10 illustrates the representative generic configurable trigger detection circuit, State based FSM design control circuitry provides a configurable method to detect whether an FSM is in a particular state—a condition which depends on the value of the FSM's state register. In contrast, the HDL-based hardware debugging system according to the invention supports analysis, diagnosis and debugging of functional failures due to mistakes in the functional specification. However, in some situations, it is advantageous to have a method to alter the behavior of the DUT after the hardware has been fabricated. Once the device is configured, the HDL-based hardware debugger is as before to perform HDL-based Hardware Debugging. It is vital proof the root cause has been found. For example, it can automatically detect and extract FSM in the HDL design and automatically select all state variables of those FSM for Design Visibility and/or Design Patching and all break-points for Design Control. One example would be an external signal that the DIC activates when any trigger condition is met. 32 is a screen-shot of a design instrumentation graphical user interface showing additional selections of HDL source file tags according to one embodiment of the invention. Tool errors are functional failures which happen when, for example, a synthesis tool involved in HDL design process does not transform the HDL description into a correct fabricated design. Since this is a PCB this involves debugging both the software written to the processor and the hardware on the PCB. Probing is accomplished by physically connecting probes of the digital logic analyzer to exposed pins and/or circuitry on the fabricated design. A watch-point is a special case of a trigger condition which is explicitly defined using a predetermined conditional expression of HDL identifiers. During hardware emulation with a hardware model of the HDL design, the user is able to examine particular variables in the behavioral HDL description. 14 illustrates a representative part of the design control circuit according to one embodiment of the invention. By running the electronic system in the environment where the design error becomes apparent, sampling the desired portions of the system state, and analyzing the observed behavior which is related back to HDL identifiers, a functional failure can quickly be diagnosed. Recently the PCB of our safety control unit arrived. The following example shows the Verilog HDL fragment of a HBB which has simple control flow logic.

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