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HARSFEN0602
6.4 The program execution............................................................................................................................................ 62
6.4.1 Initiating a Program............................................................................................................................................... 63
6.4.2 Halting and resuming a program........................................................................................................................... 63
6.4.3 Automatic program running with power up .......................................................................................................... 64
6.4.4 Save to Flash ......................................................................................................................................................... 64
6.5 Debugging................................................................................................................................................................. 64
6.5.1 Running, breaking, and resuming.......................................................................................................................... 64
6.5.2 DB command ........................................................................................................................................................ 64
6.5.3 Machine status....................................................................................................................................................... 65
6.5.4 Program status....................................................................................................................................................... 65
6.5.5 Setting and clearing break points .......................................................................................................................... 66
6.5.6 Continuation of the program ................................................................................................................................. 66
6.5.7 Single step............................................................................................................................................................. 66
6.5.8 Getting stack entries.............................................................................................................................................. 68
6.5.9 Setting stack .......................................................................................................................................................... 68
6.5.10 Getting call stack .............................................................................................................................................. 68
6.5.11 View of global variables................................................................................................................................... 69
6.5.12 View of local variables..................................................................................................................................... 69
7 THE VIRTUAL MACHINES............................................................................................................................71
7.1.1 Introduction Alla please complete where necessary.............................................................................................. 71
7.2 Virtual Machine registers........................................................................................................................................ 71
7.3 Call Stack During Function Call ............................................................................................................................ 71
7.4 Data types ................................................................................................................................................................. 72
7.5 Op code structure and addressing modes .............................................................................................................. 73
7.6 Short reference......................................................................................................................................................... 73
7.7 Alphabetic reference................................................................................................................................................ 75
7.7.1 ADD - ADDITION ............................................................................................................................................... 75
7.7.2 AND – Bitwise AND Operator ............................................................................................................................. 75
7.7.3 CMP – Compare.................................................................................................................................................... 76
7.7.4 DIV – Divide......................................................................................................................................................... 76
7.7.5 EOL – End Of Line ............................................................................................................................................... 77
7.7.6 FORITR – FOR Loop Iteration............................................................................................................................. 77
7.7.7 FREE_VAC - Free Virtual Machine .................................................................................................................... 78
7.7.8 F_OR – Bitwise OR Operator ............................................................................................................................... 78
7.7.9 GETINDEX........................................................................................................................................................... 78
7.7.10 GET_COMM – Get Command ........................................................................................................................ 79
7.7.11 JMP – Jump...................................................................................................................................................... 79
7.7.12 JMP_EOL – Jump ............................................................................................................................................ 80
7.7.13 JMP_LABEL – Jump to the label..................................................................................................................... 80
7.7.14 JNZ – Jump Not Zero....................................................................................................................................... 81
7.7.15 JNZ_EOL – Jump Not Zero ............................................................................................................................. 81
7.7.16 JZ – Jump If Zero ............................................................................................................................................. 82
7.7.17 JZ_EOL – Jump If Zero.................................................................................................................................... 82
7.7.18 LINK ................................................................................................................................................................ 82
7.7.19 MLT – Multiply................................................................................................................................................ 83
7.7.20 MOV – Assignment Operator (=)..................................................................................................................... 83
7.7.21 NOT – Bitwise NOT Operator ......................................................................................................................... 84
7.7.22 REM – Reminder.............................................................................................................................................. 84
7.7.23 RSLTA – Relational Operator (>).................................................................................................................... 85
7.7.24 RSLTAE – Relational Operator (>=) ............................................................................................................... 85
7.7.25 RSLTAND – Logical AND Operator (&&)..................................................................................................... 86
7.7.26 RSLTB – Relational Operator (<) .................................................................................................................... 86
7.7.27 RSLTBE – Relational Operator (<=)................................................................................................................ 86