94 lines
1.5 KiB
C
94 lines
1.5 KiB
C
#include "factor.h"
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#define BINARY_OP(OP) \
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void primitive_##OP(void) \
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{ \
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CELL x = dpop(), y = env.dt; \
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\
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switch(TAG(x)) \
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{ \
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case FIXNUM_TYPE: \
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\
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switch(TAG(y)) \
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{ \
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case FIXNUM_TYPE: \
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env.dt = OP##_fixnum(x,y); \
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break; \
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case OBJECT_TYPE: \
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switch(object_type(y)) \
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{ \
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case BIGNUM_TYPE: \
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env.dt = OP##_bignum(fixnum_to_bignum(x),y); \
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break; \
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default: \
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type_error(y,FIXNUM_TYPE); \
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break; \
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} \
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break; \
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default: \
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type_error(y,FIXNUM_TYPE); \
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break; \
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} \
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\
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break; \
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\
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case OBJECT_TYPE: \
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\
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switch(object_type(x)) \
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{ \
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\
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case BIGNUM_TYPE: \
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\
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switch(TAG(y)) \
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{ \
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case FIXNUM_TYPE: \
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env.dt = OP##_bignum(x,fixnum_to_bignum(y)); \
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break; \
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case OBJECT_TYPE: \
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\
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switch(object_type(y)) \
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{ \
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case BIGNUM_TYPE: \
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env.dt = OP##_bignum(x,y); \
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break; \
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default: \
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type_error(y,BIGNUM_TYPE); \
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break; \
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} \
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break; \
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default: \
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type_error(y,BIGNUM_TYPE); \
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break; \
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} \
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break; \
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\
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default: \
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\
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type_error(x,FIXNUM_TYPE); \
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break; \
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} \
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\
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default: \
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\
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type_error(x,FIXNUM_TYPE); \
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} \
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}
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/* ADDITION */
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INLINE CELL add_fixnum(CELL x, CELL y)
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{
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CELL result = untag_fixnum_fast(x) + untag_fixnum_fast(y);
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if(result & ~FIXNUM_MASK)
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return tag_bignum(fixnum_to_bignum(result));
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else
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return tag_fixnum(result);
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}
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INLINE CELL add_bignum(CELL x, CELL y)
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{
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return tag_object(bignum(((BIGNUM*)UNTAG(x))->n
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+ ((BIGNUM*)UNTAG(y))->n));
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}
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BINARY_OP(add)
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