39 lines
1.2 KiB
C
39 lines
1.2 KiB
C
/*****************************************************************************
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ExeU()
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This function performs a U command.
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nUq Put number n into Q-register q
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*****************************************************************************/
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#include "zport.h" /* define portability identifiers */
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#include "tecoc.h" /* define general identifiers */
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#include "defext.h" /* define external global variables */
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#include "deferr.h" /* define identifiers for error messages */
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DEFAULT ExeU() /* execute U command */
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{
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DBGFEN(1,"ExeU",NULL);
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if (EStTop == EStBot) { /* if no numeric argument */
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ErrMsg(ERR_NAU);
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DBGFEX(1,DbgFNm,"FAILURE, no arg before U");
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return FAILURE;
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}
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if (GetNmA() == FAILURE) { /* get numeric argument */
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DBGFEX(1,DbgFNm,"FAILURE, GetNmA() failed");
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return FAILURE;
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}
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if (IncCBP() == FAILURE) { /* increment to Q-reg name */
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DBGFEX(1,DbgFNm,"FAILURE, IncCBp() failed.");
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return FAILURE;
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}
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if (FindQR() == FAILURE) {
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DBGFEX(1,DbgFNm,"FAILURE, FindQR() failed");
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return FAILURE;
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}
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QR->Number = NArgmt;
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if (CmdMod & MARGIS) { /* if m,nUq */
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DBGFEX(1,DbgFNm,"PushEx()");
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return PushEx(MArgmt, OPERAND);
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}
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CmdMod = '\0'; /* clear modifiers flags */
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DBGFEX(1,DbgFNm,"SUCCESS");
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return SUCCESS;
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}
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