The ZeitControl Basic Card in .NET Encoding barcode data matrix in .NET The ZeitControl Basic Card

The ZeitControl Basic Card generate, create barcode data matrix none with .net projects .NET Framework SDK The ZeitControl Basic card barcode data matrix for .NET was and still is the first programmable smart card to offer an integrated application development environment that spans both the off-card and the on-card application simultaneously. You bring up the off-card application in one window, the on-card in an adjacent window, and single-step through the off-card, over to the on-card, and then back to the off-card.

At the time they were introduced in 1996, the card and its IDE were light-years ahead of the competition. In a number of ways, they still are. The IDE is free and can be downloaded from www. ZeitControl Basic (ZC-Basic) contains most of the usual Basic language constructs including strings and string functions, arrays, and user-defined data types.

Like the Microsoft card, the Basic card sports a DOS-like FAT file system with the familiar Basic programming interface.. The ZeitControl Basic Card Virtual Machine The Compact version of the Data Matrix 2d barcode for .NET ZeitControl Basic card virtual machine supports 1-, 2-, and 4-byte signed integer and string data types. The Extended version also supports floats.

It is the only virtual machine that supports floats. The 116 byte codes in the Compact ZeitControl virtual machine are shown in Table 5.7.

. Table 5.7. Byte Codes for Basic Card Virtual Machine Mnemonic ABSL ABSW ADD$ ADD DataMatrix for .NET L ADDSP ADDW ALLOCA ANDL ANDW ARRAY Pop slX ; push Abs(slX) Pop swX ; push Abs(swX) Pop X$ ; pop Z$ ; pop Y$ ; X$ = Y$ + Z$ Pop slY ; pop slX ; push slX + slY SP += scDelta (if scDelta > 0, "pushed" bytes are initialized to zero) Pop swY ; pop swX ; push swX + swY Pop A ; pop bounds word uwBr for each dimension r, in reverse order; allocate data area of A and initialize all elements to 0 Pop ulY ; pop ulX ; push ulX And ulY Pop uwY ; pop uwX ; push uwX And uwY Pop A ; pop subscript swIr for each dimension r in reverse order ; push Description. Table 5.7. Byte Codes for Basic Card Virtual Machine Mnemonic Description addres Data Matrix barcode for .NET s of array element A (swI1, swI2, . .

. , swIn) ASC$ BOUNDA CALL CHKDIM COMP$ COMPL COPY$ CVTCW CVTLW CVTWC CVTWL DIVL DIVW DUP ENTER ERROR EXIT FDATA FREE$ FREEA FREEA$ HEX$ INCL INCW JEQWB JGEWB JGTWB Pop X$ ; push Asc(X$) as CHAR Pop swHi ; pop swLo ; push 400*swLo + (swHi swLo) as WORD Procedure call or GoSub: push PC+3 as WORD ; PC = uwAddr Pop A ; push A ; if Dim(A) <> ucNdims then execute ERROR 0C Pop Y$ ; pop X$ ; compare ; push for WORD comparison Pop slY ; pop slX ; compare ; push for WORD comparison Pop X$ ; pop Y$ ; X$ = Y$ Pop ucX ; swY = ucX ; push swY Pop slX ; swY = slX ; push swY Pop swX ; ucY = swX ; push ucY Pop swX ; slY = swX ; push slY Pop slY ; pop slX ; push slX / slY Pop swY ; pop swX ; push swX / swY Push the top ucLen stack bytes Push FP ; push SP + ucFrmSiz + F ; FP = SP ; SP = SP + ucFrmSiz Generate a P-Code error condition Exit the Virtual Machine Copy data (ucLen bytes) to address FP + scAddr Pop 2-byte handle to variable-length string X$ ; X$ = empty string Pop A ; if Dynamic then deallocate A, else set all elements of A to 0 Pop string array A ; free all strings in A ; if Dynamic then deallocate A Pop X$ ; pop slX ; X$ = Hex$(slX) Pop slX ; push slX + 1 Pop swX ; push swX + 1 Pop swY ; pop swX ; if swX = swY then PC = PC + scDisp + 2 Pop swY ; pop swX ; if swX >= swY then PC = PC + scDisp + 2 Pop swY ; pop swX ; if swX > swY then PC = PC + scDisp + 2.
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