95 lines
3.8 KiB
C
95 lines
3.8 KiB
C
typedef long scheme_value;
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#define FIXNUM_TAG 0
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#define FIXNUMP(x) (((long)(x) & 3L) == FIXNUM_TAG)
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#define IMMEDIATE_TAG 1
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#define IMMEDIATEP(x) (((long)(x) & 3L) == IMMEDIATE_TAG)
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#define HEADER_TAG 2
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#define HEADERP(x) (((long)(x) & 3L) == HEADER_TAG)
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#define STOB_TAG 3
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#define STOBP(x) (((long)(x) & 3L) == STOB_TAG)
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#define ENTER_FIXNUM(n) ((scheme_value)((n) << 2))
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#define EXTRACT_FIXNUM(x) ((long)(x) >> 2)
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#define MISC_IMMEDIATE(n) (scheme_value)(IMMEDIATE_TAG | ((n) << 2))
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#define SCHFALSE MISC_IMMEDIATE(0)
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#define SCHTRUE MISC_IMMEDIATE(1)
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#define SCHCHAR MISC_IMMEDIATE(2)
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#define SCHUNSPECIFIC MISC_IMMEDIATE(3)
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#define SCHUNDEFINED MISC_IMMEDIATE(4)
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#define SCHEOF MISC_IMMEDIATE(5)
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#define SCHNULL MISC_IMMEDIATE(6)
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#define UNDEFINED SCHUNDEFINED
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#define UNSPECIFIC SCHUNSPECIFIC
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#define ENTER_BOOLEAN(n) ((n) ? SCHTRUE : SCHFALSE)
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#define EXTRACT_BOOLEAN(x) ((x) != SCHFALSE)
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#define ENTER_CHAR(c) (SCHCHAR | ((c) << 8))
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#define EXTRACT_CHAR(x) ((x) >> 8)
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#define ADDRESS_AFTER_HEADER(x, type) ((type *)((x) - STOB_TAG))
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#define STOB_REF(x, i) ((ADDRESS_AFTER_HEADER(x, long))[i])
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#define STOB_TYPE(x) ((STOB_HEADER(x)>>2)&31)
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#define STOB_HEADER(x) (STOB_REF((x),-1))
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#define STOB_BLENGTH(x) (STOB_HEADER(x) >> 8)
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#define STOB_LLENGTH(x) (STOB_HEADER(x) >> 10)
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#define STOBTYPE_PAIR 0
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#define PAIRP(x) (STOBP(x) && (STOB_TYPE(x) == STOBTYPE_PAIR))
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#define STOBTYPE_SYMBOL 1
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#define SYMBOLP(x) (STOBP(x) && (STOB_TYPE(x) == STOBTYPE_SYMBOL))
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#define STOBTYPE_VECTOR 2
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#define VECTORP(x) (STOBP(x) && (STOB_TYPE(x) == STOBTYPE_VECTOR))
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#define STOBTYPE_CLOSURE 3
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#define CLOSUREP(x) (STOBP(x) && (STOB_TYPE(x) == STOBTYPE_CLOSURE))
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#define STOBTYPE_LOCATION 4
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#define LOCATIONP(x) (STOBP(x) && (STOB_TYPE(x) == STOBTYPE_LOCATION))
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#define STOBTYPE_PORT 5
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#define PORTP(x) (STOBP(x) && (STOB_TYPE(x) == STOBTYPE_PORT))
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#define STOBTYPE_RATIO 6
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#define RATIOP(x) (STOBP(x) && (STOB_TYPE(x) == STOBTYPE_RATIO))
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#define STOBTYPE_RECORD 7
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#define RECORDP(x) (STOBP(x) && (STOB_TYPE(x) == STOBTYPE_RECORD))
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#define STOBTYPE_CONTINUATION 8
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#define CONTINUATIONP(x) (STOBP(x) && (STOB_TYPE(x) == STOBTYPE_CONTINUATION))
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#define STOBTYPE_EXTENDED_NUMBER 9
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#define EXTENDED_NUMBERP(x) (STOBP(x) && (STOB_TYPE(x) == STOBTYPE_EXTENDED_NUMBER))
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#define STOBTYPE_TEMPLATE 10
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#define TEMPLATEP(x) (STOBP(x) && (STOB_TYPE(x) == STOBTYPE_TEMPLATE))
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#define STOBTYPE_WEAK_POINTER 11
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#define WEAK_POINTERP(x) (STOBP(x) && (STOB_TYPE(x) == STOBTYPE_WEAK_POINTER))
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#define STOBTYPE_EXTERNAL 12
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#define EXTERNALP(x) (STOBP(x) && (STOB_TYPE(x) == STOBTYPE_EXTERNAL))
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#define STOBTYPE_UNUSED_D_HEADER1 13
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#define UNUSED_D_HEADER1P(x) (STOBP(x) && (STOB_TYPE(x) == STOBTYPE_UNUSED_D_HEADER1))
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#define STOBTYPE_UNUSED_D_HEADER2 14
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#define UNUSED_D_HEADER2P(x) (STOBP(x) && (STOB_TYPE(x) == STOBTYPE_UNUSED_D_HEADER2))
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#define STOBTYPE_STRING 15
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#define STRINGP(x) (STOBP(x) && (STOB_TYPE(x) == STOBTYPE_STRING))
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#define STOBTYPE_CODE_VECTOR 16
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#define CODE_VECTORP(x) (STOBP(x) && (STOB_TYPE(x) == STOBTYPE_CODE_VECTOR))
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#define STOBTYPE_DOUBLE 17
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#define DOUBLEP(x) (STOBP(x) && (STOB_TYPE(x) == STOBTYPE_DOUBLE))
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#define STOBTYPE_BIGNUM 18
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#define BIGNUMP(x) (STOBP(x) && (STOB_TYPE(x) == STOBTYPE_BIGNUM))
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#define CAR(x) STOB_REF(x, 0)
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#define CDR(x) STOB_REF(x, 1)
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#define SYMBOL_TO_STRING(x) STOB_REF(x, 0)
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#define CONTENTS(x) STOB_REF(x, 0)
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#define LOCATION_ID(x) STOB_REF(x, 1)
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#define CLOSURE_TEMPLATE(x) STOB_REF(x, 0)
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#define CLOSURE_ENV(x) STOB_REF(x, 1)
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#define WEAK_POINTER_REF(x) STOB_REF(x, 0)
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#define EXTERNAL_NAME(x) STOB_REF(x, 0)
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#define EXTERNAL_VALUE(x) STOB_REF(x, 1)
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#define VECTOR_LENGTH(x) STOB_LLENGTH(x)
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#define VECTOR_REF(x, i) STOB_REF(x, i)
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#define CODE_VECTOR_LENGTH(x) STOB_BLENGTH(x)
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#define CODE_VECTOR_REF(x, i) (ADDRESS_AFTER_HEADER(x, unsigned char)[i])
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#define STRING_LENGTH(x) (STOB_BLENGTH(x)-1)
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#define STRING_REF(x, i) (ADDRESS_AFTER_HEADER(x, char)[i])
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