Synthesizing printf and scanf statements for generating debug messages in high-level synthesis (hls) code

Abstract

High level synthesis (HLS) begins with high-level specification of a problem, where behavior is generally decoupled from e.g., clock-level timing. Programming code can be run and debugged during functional simulation using debugging techniques. However, it is not possible to understand execution flow of register transfer level instructions (RTL) generated during RTL debug. Conventionally, it is challenging and not possible due to nature of debugging techniques which ignore printf statements in code for invocation. Systems and methods of present disclosure synthesize printf and/or scanf statements for generating debug messages in HLS code, wherein printf and/or scanf statements is/are included before/after function(s) in sections comprising instructions in code and synthesized as a block during run-time which communicate with host system and debug messages are generated for display on screen. This enables traceability of the code execution on the screen and printf/scanf statements output can be observed without any challenges.