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Language/OS - Multiplatform Resource Library
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LANGUAGE OS.iso
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lisp
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eulisp
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feel0_89.lha
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Feel
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Src
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funcalls.h
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C/C++ Source or Header
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1993-02-02
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6KB
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243 lines
/*
* macros for calling eulispII functions
*/
#ifndef FUNCALLS_H
#define FUNCALLS_H
#define ARG_STACK_PUSH(x) STACK(x)
#define ARG_STACK_POP(x) STACK(x)
#define CALL_FN(function,args) \
function(stacktop,stacktop+number_of_args)
#define ARG_0(stack) (*stack)
#define ARG_1(stack) (*(stack+1))
#define ARG_2(stack) (*(stack+2))
#define ARG_3(stack) (*(stack+3))
#ifdef __STDC__
#define EUDECL(fun) \
LispObject fun(LispObject *)
#define EUFUN_0(name) LispObject name(LispObject *stackbase) \
{ LispObject *stacktop = stackbase; \
/*toplabel:*/
#define EUFUN_1(name,arg) \
LispObject name (LispObject *stackbase) \
{ \
LispObject arg; \
LispObject *stacktop = stackbase+1; \
/*toplabel:*/ \
arg = ARG_0(stackbase); \
#define EUFUN_2(name,a1,a2) \
LispObject name (LispObject *stackbase) \
{ \
LispObject a1; \
LispObject a2; \
LispObject *stacktop = stackbase+2; \
/*toplabel:*/ \
a1 = ARG_0(stackbase); \
a2 = ARG_1(stackbase);
#define EUFUN_3(name, a1, a2, a3) \
LispObject name (LispObject *stackbase) \
{ \
LispObject a1; \
LispObject a2; \
LispObject a3; \
LispObject *stacktop = stackbase+3; \
/*toplabel:*/ \
a1 = ARG_0(stackbase); \
a2 = ARG_1(stackbase); \
a3 = ARG_2(stackbase);
#define EUFUN_4(name, a1, a2, a3, a4) \
LispObject name (LispObject *stackbase) \
{ \
LispObject a1; \
LispObject a2; \
LispObject a3; \
LispObject a4; \
LispObject *stacktop = stackbase+4; \
/*toplabel:*/ \
a1 = ARG_0(stackbase); \
a2 = ARG_1(stackbase); \
a3 = ARG_2(stackbase); \
a4 = ARG_3(stackbase);
#else
#define EUDECL(fun) \
LispObject fun()
#define EUFUN_0(name) \
LispObject name(stackbase) \
LispObject *stackbase; \
{ LispObject *stacktop = stackbase; \
/*toplabel:*/
#define EUFUN_1(name,arg) \
LispObject name (stackbase) \
LispObject *stackbase; \
{ \
LispObject arg; \
LispObject *stacktop = stackbase+1; \
/*toplabel:*/ \
arg = ARG_0(stackbase); \
#define EUFUN_2(name,a1,a2) \
LispObject name (stackbase) \
LispObject *stackbase; \
{ \
LispObject a1; \
LispObject a2; \
LispObject *stacktop = stackbase+2; \
/*toplabel:*/ \
a1 = ARG_0(stackbase); \
a2 = ARG_1(stackbase);
#define EUFUN_3(name, a1, a2, a3) \
LispObject name (stackbase) \
LispObject *stackbase; \
{ \
LispObject a1; \
LispObject a2; \
LispObject a3; \
LispObject *stacktop = stackbase+3; \
/*toplabel:*/ \
a1 = ARG_0(stackbase); \
a2 = ARG_1(stackbase); \
a3 = ARG_2(stackbase);
#define EUFUN_4(name, a1, a2, a3, a4) \
LispObject name (stackbase) \
LispObject *stackbase; \
{ \
LispObject a1; \
LispObject a2; \
LispObject a3; \
LispObject a4; \
LispObject *stacktop = stackbase+4; \
/*toplabel:*/ \
a1 = ARG_0(stackbase); \
a2 = ARG_1(stackbase); \
a3 = ARG_2(stackbase); \
a4 = ARG_3(stackbase);
#endif
/* tacky, but needed -- x is the number of args before the nested call
hopefully, the optimiser will sort this little lot out */
#define NEST(x,call) \
( stacktop += x, *stacktop = call , stacktop += -x, *(stacktop+x))
#define STACK_TMP(x) (*stacktop = (x) , stacktop++) /* change cos of seq. points in
NARY_PUSH */
#define UNSTACK_TMP(x) (x) = *--stacktop
#define EUFUN_CLOSE }
#define EUCALL_0(name) \
name (stacktop)
#define EUCALL_1(name, arg) \
( \
ARG_0(stacktop) = arg, \
name (stacktop) \
)
#define EUCALL_2(name,arg1,arg2) \
( \
ARG_0(stacktop) = arg1, \
ARG_1(stacktop) = arg2, \
name (stacktop) \
)
#define EUCALL_3(name,arg1,arg2,arg3) \
( \
ARG_0(stacktop) = arg1, \
ARG_1(stacktop) = arg2, \
ARG_2(stacktop) = arg3, \
name (stacktop) \
)
#define EUCALL_4(name,arg1,arg2,arg3,arg4) \
( \
ARG_0(stacktop) = arg1, \
ARG_1(stacktop) = arg2, \
ARG_2(stacktop) = arg3, \
ARG_3(stacktop) = arg4, \
name (stacktop) \
)
#define EUCALLSET_0(val,name) val = name (stacktop)
#define EUCALLSET_1(val, name, arg) \
{ \
ARG_0(stacktop) = arg; \
val = name (stacktop); \
}
#define EUCALLSET_2(val,name,arg1,arg2) \
{ \
ARG_0(stacktop) = arg1; \
ARG_1(stacktop) = arg2; \
val = name (stacktop); \
}
#define EUCALLSET_3(val,name,arg1,arg2,arg3) \
{ \
ARG_0(stacktop) = arg1; \
ARG_1(stacktop) = arg2; \
ARG_2(stacktop) = arg3; \
val = name (stacktop); \
}
#define EUCALLSET_4(val,name,arg1,arg2,arg3,arg4) \
{ \
ARG_0(stacktop) = arg1; \
ARG_1(stacktop) = arg2; \
ARG_2(stacktop) = arg3; \
ARG_3(stacktop) = arg4; \
val = name (stacktop); \
}
#define EULET(name,value)
/* call a function with the same arguments.. assumes they are never changed */
/* only a little dodgy */
#define RECALL(fun) fun (stackbase)
/* we don't use this often */
#define EUTAIL_3(a1,a2,a3) \
{ *stackbase=a1; \
*(stackbase+1) = a2;\
*(stackbase+2) = a3;\
stacktop = stackbase + 3 ;\
goto toplabel; \
}
#define BEGIN_NARY_EUCALL() \
do \
{ LispObject *argbase = stacktop; \
int argcount=0;
#define NARY_PUSH_ARG(val)\
*(argbase+(argcount++))=val;
#define NARY_EUCALL(fun) fun (argbase)
#define NARY_EUCALL_1(fun,arg) fun(argbase,arg)
#define END_NARY_EUCALL() \
} while(0)
#define RETURN_EUCALL(call) do { stacktop=stackbase; return (call); } while (0)
#define DISCARD_OBJ() --stacktop
#endif