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Maiko sources matching state as of 020102 prior to initial patching for Mac OSX

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Nick Briggs
2015-04-20 18:53:52 -07:00
commit de170a64d9
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src/ubf2.c Executable file
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/* $Id: ubf2.c,v 1.3 1999/05/31 23:35:44 sybalsky Exp $ (C) Copyright Venue, All Rights Reserved */
static char *id = "$Id: ubf2.c,v 1.3 1999/05/31 23:35:44 sybalsky Exp $ Copyright (C) Venue";
/* ubf2.c
*/
/************************************************************************/
/* */
/* (C) Copyright 1989-95 Venue. All Rights Reserved. */
/* Manufactured in the United States of America. */
/* */
/* The contents of this file are proprietary information */
/* belonging to Venue, and are provided to you under license. */
/* They may not be further distributed or disclosed to third */
/* parties without the specific permission of Venue. */
/* */
/************************************************************************/
#include "version.h"
#include <stdio.h>
#include <math.h>
#include "lispemul.h"
#include "medleyfp.h"
/************************************************************
OP_ub2 -- op 354 == UBFLOAT2
354/0 ADD
354/1 SUB
354/2 ISUB
354/3 MULT
354/4 DIV
354/5 GREAT
354/6 MAX
354/7 MIN
354/8 REM
354/9 AREF
***********************************************************/
N_OP_ubfloat2(int a2, int a1, int alpha)
{
REGISTER float arg1, arg2;
float ans;
int ret;
/* Unboxed floating point args (a1, a2) look like float, but */
/* can't be declared as such because all float args get passed */
/* as double. (That can be avoided in ansi C.) Instead, they */
/* are declared int and accessed as float through cast pointers. */
/* The return value is handled similarly. */
arg1 = *(float *)&a1;
arg2 = *(float *)&a2;
FPCLEAR;
switch (alpha) {
case 0: /* add */ ans = arg1 + arg2; break;
case 1: /* sub */ ans = arg2 - arg1; break;
case 2: /* isub */ ans = arg1 - arg2; break;
case 3: /* mul */ ans = arg1 * arg2; break;
case 4: /* div */ ans = arg2 / arg1; break;
case 5: /* gt */ if (arg2 > arg1) return(ATOM_T); else return(NIL_PTR);
case 6: /* max */ if (arg2 > arg1) return(a2); else return(a1);
case 7: /* min */ if (arg2 > arg1) return(a1); else return(a2);
case 8: /* rem */ ans = fmod(arg2,arg1); break;
default: ERROR_EXIT(a1);
}/* end switch */
ret = *(int *)&ans; /* Convert it back to int for 32 bit storage */
if (FPTEST(ans)) ERROR_EXIT(a1);
return(ret);
}/* end N_OP_ub2() */
/* end module */