namespace internal

popStack

#include "xf_data_analytics/text/regexVM.hpp"

static void popStack (unsigned int& stkPtr)

Pop one element out of stack.

Parameters:

stkPtr

Pointer for last item in stack.

peekStack

#include "xf_data_analytics/text/regexVM.hpp"

static void peekStack (
    ap_uint <54>* stackBuff,
    unsigned int stkPtr,
    ap_uint <54>& dt
    )

Peeking stack data for optimization.

Parameters:

stackBuff	Internal stack buffer.
stkPtr	Pointer for last item in stack.
dt	Collection of stack type, memory id, memory start offset, memory end offset, op address, and string pointer.

split

#include "xf_data_analytics/text/regexVM.hpp"

static void split (
    ap_uint <54> dt,
    ap_uint <6>& stkType,
    ap_uint <16>& memID,
    ap_uint <16>& memStart,
    ap_uint <16>& memEnd,
    ap_uint <16>& opAddr,
    ap_uint <16>& strPtr
    )

Stack data splitter.

Parameters:

dt	Collection of stack type, memory id, memory start offset, memory end offset, op address, and string pointer.
stkType	Type of current item to be pushed into stack.
memID	Current group index.
memStart	Start offset address of current capturing group.
memEnd	End offset address of current capturing group.
opAddr	Instruction address.
strPtr	Pointer for current character in input string.

pushStack

#include "xf_data_analytics/text/regexVM.hpp"

static void pushStack (
    ap_uint <54>* stackBuff,
    unsigned int& stkPtr,
    ap_uint <54> dt
    )

Push one element into stack.

Parameters:

stackBuff	Internal stack buffer.
stkPtr	Pointer for last item in stack.
dt	Collection of data to be pushed into stack.

pushStack_opt

#include "xf_data_analytics/text/regexVM.hpp"

static void pushStack_opt (
    ap_uint <54>* stackBuff,
    unsigned int stkPtr,
    ap_uint <54> dt
    )

Push one element into stack without increasing the stack pointer (for optimized regexVM only).

Parameters:

stackBuff	Internal stack buffer.
stkPtr	Pointer for last item in stack.
dt	Collection of data to be pushed into stack.

combine

#include "xf_data_analytics/text/regexVM.hpp"

static void combine (
    ap_uint <54>& dt,
    ap_uint <6> stkType,
    ap_uint <16> memID,
    ap_uint <16> memStart,
    ap_uint <16> memEnd,
    ap_uint <16> opAddr,
    ap_uint <16> strPtr
    )

Stack data combiner.

Parameters:

dt	Collection of stack type, memory id, memory start offset, memory end offset, op address, and string pointer.
stkType	Type of current item to be pushed into stack.
memID	Current group index.
memStart	Start offset address of current capturing group.
memEnd	End offset address of current capturing group.
opAddr	Instruction address.
strPtr	Pointer for current character in input string.