69 lines
1.8 KiB
C
69 lines
1.8 KiB
C
/******************************************************************************
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*
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* l i b s t a c k - H P . c
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*
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* Copyright © 1997-1999 Erick Gallesio - I3S-CNRS/ESSI <eg@unice.fr>
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*
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*
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* Permission to use, copy, modify, distribute,and license this
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* software and its documentation for any purpose is hereby granted,
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* provided that existing copyright notices are retained in all
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* copies and that this notice is included verbatim in any
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* distributions. No written agreement, license, or royalty fee is
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* required for any of the authorized uses.
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* This software is provided ``AS IS'' without express or implied
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* warranty.
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*
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*
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* Author: Erick Gallesio [eg@unice.fr]
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* Creation date: 29-Sep-1997 12:18
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* Last file update: 3-Sep-1999 21:05 (eg)
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*
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******************************************************************************/
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#include "libstack.h"
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/*
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All arguments, except the first 4 words, are passed on the stack
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with word alignment. Doubles take two words and force double
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alignment.
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The first 2 words are passed like this:
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%r26 = first integer arg, %r25 = second integer arg, or
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%r26 = high word of double arg, %r25 = low word of double arg.
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Similarly for the next 2 words, passed in %r24 and %r23.
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*/
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fake_type stk_argv[MAX_EXTERNAL_PARAM];
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int stk_argc = 0;
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int stk_push_double(double d)
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{
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if (stk_argc & 1) /* align */ stk_argc++;
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if ((stk_argc < MAX_EXTERNAL_PARAM-1)) {
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stk_argv[stk_argc+1].d = d;
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stk_argv[stk_argc].i[1]= stk_argv[stk_argc].i[0];
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stk_argc +=2;
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return 0;
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}
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return -1;
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}
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long stk_call_long(void *func)
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{
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long (*f)() = func;
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big_switch;
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}
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double stk_call_double(void *func)
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{
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double (*f)() = func;
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big_switch;
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}
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float stk_call_float(void *func)
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{
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float (*f)() = func;
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big_switch;
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}
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