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Improves behavior of display subrs DSPBOUT and SHOWDISPLAY #522

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Merged
merged 1 commit into from
Dec 22, 2024
Merged

Improves behavior of display subrs DSPBOUT and SHOWDISPLAY #522

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18 changes: 16 additions & 2 deletions src/dspsubrs.c
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Original file line number Diff line number Diff line change
Expand Up @@ -40,7 +40,12 @@ extern int Mouse_Included;
****************************************************/

void DSP_dspbout(LispPTR *args) /* args[0] : charcode */
{ putc((args[0] & 0xFFFF) & 0x7f, BCPLDISPLAY); }
{
int charcode = (args[0] & 0x7F);
/* Interlisp-D uses CR as EOL which isn't useful here */
putc((charcode == '\r') ? '\n' : charcode, BCPLDISPLAY);
fflush(BCPLDISPLAY);
}

/****************************************************
*
Expand All @@ -52,7 +57,16 @@ void DSP_dspbout(LispPTR *args) /* args[0] : charcode */
extern int DisplayInitialized;

void DSP_showdisplay(LispPTR *args)
{ DisplayInitialized = 1; }
{
LispPTR base = args[0]; /* pointer to the display bitmap */
LispPTR rasterwidth = args[1]; /* should be a smallp */

if (base == NIL) {
DisplayInitialized = 0;
} else {
DisplayInitialized = 1;
}
}

/****************************************************
*
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