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Prototype
InvBuffer_S32(r)
Description
WriteI32ToBuffer(rBuffer+r, -ReadBufferToI32(rBuffer+r));
Invert the int32 at index r of the buffer.
Return
Nothing
Code Example
The following code example uses the InvBuffer_S32 function to invert the int32 stored in a buffer at index r.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 | /* Example Code * InvBuffer_S32 * * get buffer indexes r1 * set buffer in memory * inv buffer[r1] * if params used * return result of inv on 32 bits * else * return 0x00 (inv not ok) or 0x01 (inv ok) on 8 bits * * example VMExecuteCmd: * cmd: |r1 |buffer * 0xfb 0x0e 0x00 0x0c 0x00 0x0e [0x?? 0x?? 0x?? = macAdress] 0x00 0x00 0x21 0x43 0x65 0x87 * rsp: 0xfb 0x08 0x00 0x2d 0x00 0xe1 0x1e 0xdf 0xbc 0x9a 0x78 */ #include "SMK900.evi" #define SENSORCODE 0x01 function exec_aircmd(){ local rxLen; local useParams; local r1; local i; local result; rxLen=GetAirBuf(0, 0, 20); if (rxLen>=7){ // 1 byte for paketID + 6 bytes of payload (2 bytes for buffer index and minimum 4 bytes for buffer) useParams= true ; r1=GetBuffer_16(1); for (i=3;i<rxLen;i++){ SetBuffer(i-3,GetBuffer_S8(i),1); } } else { useParams= false ; r1=0; SetBuffer_16(0,0x4321); SetBuffer_16(2,0x8765); } InvBuffer_S32(r1); if (useParams){ SetBuffer_16(0,GetBuffer_16(r1)); SetBuffer_16(2,GetBuffer_16(r1+2)); Send(4); } else { if (GetBuffer_16(r1+2)==0x789a && GetBuffer_16(r1)==0xbcdf){ result = 1; } else { result = 0; } SetBuffer(4,result,1); Send(5); } } function main() { local execType; execType = GetExecType(); if (execType==MESHEXECTYPE_AIRCMD_bm){ exec_aircmd(); } } |