246 lines
6.4 KiB
Plaintext
246 lines
6.4 KiB
Plaintext
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#################################################################
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# #
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# Copyright 2001, 2011 Fidelity Information Services, Inc #
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# #
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# This source code contains the intellectual property #
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# of its copyright holder(s), and is made available #
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# under a license. If you do not know the terms of #
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# the license, please stop and do not read further. #
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# #
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#################################################################
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.sbttl mval_def.si
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# PAGE +
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# -------------------------------------------
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# mval_def.si
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#
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# This is an include file for
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# SCO Unix 80386 masm assembler containing
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# the macros for mval-related assembly routines.
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# -------------------------------------------
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mval_v_nm = 0
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mval_v_int = 1
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mval_v_str = 2
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mval_v_num_approx = 3
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mval_v_canonical = 4
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mval_v_sym = 5
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mval_v_sublit = 6
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mval_v_retarg = 7
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mval_v_utflen = 8
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mval_v_aliascont = 9
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mval_m_nm = 0x001
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mval_m_int_without_nm = 0x002
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mval_m_int = 0x003
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mval_m_str = 0x004
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mval_m_num_approx = 0x008
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mval_m_canonical = 0x010
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mval_m_sym = 0x020
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mval_m_sublit = 0x040
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mval_m_retarg = 0x080
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mval_m_utflen = 0x100
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mval_m_aliascont = 0x200
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#smw 99/7/12 Now using MS VC 5.0 so the following paragraph should
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# be replaced.
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# NOTE: The SCO C compiler pads out bit fields to the length of
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# the underlying type. For example, a series of "unsigned int"
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# bit fields will be padded out to a multiple of 4 bytes, even if
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# they require less than one byte total, because the underlying
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# type is "int". Similarly, a series of "unsigned short" bit
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# fields will be padded out to a multiple of 2 bytes, and a
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# series of "unsigned char" will be padded out to a byte boundary.
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# Also note the padding is not related to alignment, only to
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# total length.
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#
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#smw 99/10/19 gcc on Linux doesn't do the above
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#
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# Length of mval in bytes
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mval_byte_len = 24
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# Offsets of type, exp, strlen, stradd, num in mval structure
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mval_w_mvtype = 0
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mval_b_exp = 2
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mval_l_strlen = 16
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mval_a_straddr = 20
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# Address offset of number in mval
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mvalnm_offs = 4
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mval_l_m0 = 4
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mval_l_m1 = 8
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mval_esign_mask = 0x080
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MV_BIAS = 1000 # 10**3
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MANT_LO = 100000000 # 10**8
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MANT_HI = 1000000000 # 10**9
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INT_HI = 1000000 # 10**6
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# Stringpool structure offsets
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base = 0
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free = 4
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top = 8
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# mvals passed to these macros must be registers
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.sbttl mval_def.si mv_force_defined
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# ---------------------------------------
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# mv_force_defined(mval, label)
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# ---------------------------------------
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.macro mv_force_defined mval, label
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testw $(mval_m_str+mval_m_nm),mval_w_mvtype(\mval)
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jne \label
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pushl \mval
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call underr
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addl $4,%esp
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movl %eax, \mval
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\label:
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.endm
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.sbttl mval_def.si mv_force_str
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# ---------------------------------------
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# mv_force_str(mval, label)
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# ---------------------------------------
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.macro mv_force_str mval, label
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testw $mval_m_str,mval_w_mvtype(\mval)
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jne \label
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pushl \mval
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call n2s
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addl $4,%esp
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\label:
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.endm
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.sbttl mval_def.si mv_force_num
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# ---------------------------------------
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# mv_force_num(mval, label)
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# ---------------------------------------
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.macro mv_force_num mval, label
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testw $mval_m_nm,mval_w_mvtype(\mval)
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jne \label
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pushl \mval
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call s2n
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addl $4,%esp
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\label:
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.endm
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.sbttl mval_def.si mv_force_str_if_num_approx
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# ---------------------------------------
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# mv_force_str_if_num_approx(mval, label)
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# ---------------------------------------
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.macro mv_force_str_if_num_approx mval, label
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testw $mval_m_num_approx,mval_w_mvtype(\mval)
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je \label
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pushl \mval
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call n2s
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addl $4,%esp
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\label:
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.endm
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.sbttl mval_def.si mv_i2mval
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# ---------------------------------------
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# mv_i2mval(int, mval)
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# ---------------------------------------
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.macro mv_i2mval int, mval
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movw $mval_m_int,mval_w_mvtype(\mval)
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movl \int,%eax
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imull $MV_BIAS,%eax,%eax
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movl %eax,mval_l_m1(\mval)
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.endm
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.sbttl mval_def.si mv_if_string
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# ---------------------------------------
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# mv_if_string(mval,label)
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# ---------------------------------------
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.macro mv_if_string mval, label
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testw $mval_m_str,mval_w_mvtype(\mval)
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jne \label
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.endm
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.sbttl mval_def.si mv_if_number
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# ---------------------------------------
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# mv_if_number(mval,label)
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# ---------------------------------------
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.macro mv_if_number mval, label
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testw $mval_m_nm,mval_w_mvtype(\mval)
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jne \label
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.endm
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.sbttl mval_def.si mv_if_int
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# ---------------------------------------
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# mv_if_int(mval,label)
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# ---------------------------------------
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.macro mv_if_int mval, label
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testw $mval_m_int_without_nm,mval_w_mvtype(\mval)
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jne \label
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.endm
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.sbttl mval_def.si mv_if_notstring
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# ---------------------------------------
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# mv_if_notstring(mval,label)
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# ---------------------------------------
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.macro mv_if_notstring mval, label
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testw $mval_m_str,mval_w_mvtype(\mval)
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je \label
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.endm
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.sbttl mval_def.si mv_if_notnumber
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# ---------------------------------------
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# mv_if_notnumber(mval,label)
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# ---------------------------------------
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.macro mv_if_notnumber mval, label
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testw $mval_m_nm,mval_w_mvtype(\mval)
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je \label
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.endm
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.sbttl mval_def.si mv_if_notint
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# ---------------------------------------
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# mv_if_notint(mval,label)
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# ---------------------------------------
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.macro mv_if_notint mval, label
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testw $mval_m_int_without_nm,mval_w_mvtype(\mval)
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je \label
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.endm
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.sbttl mval_def.si mv_if_defined
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# ---------------------------------------
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# mv_if_defined(mval,label)
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# ---------------------------------------
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.macro mv_if_defined mval, label
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testw $(mval_m_str+mval_m_nm),mval_w_mvtype(\mval)
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jne \label
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.endm
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.sbttl mval_def.si mv_if_notdefined
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# ---------------------------------------
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# mv_if_notdefined(mval,label)
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# ---------------------------------------
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.macro mv_if_notdefined mval, label
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testw $(mval_m_str+mval_m_nm),mval_w_mvtype(\mval)
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je \label
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.endm
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.sbttl mval_def.si mv_if_canonical
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# -------------------------------------------------------------
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# WARNING:
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# Following macro needs to be supplied with 2 extra labels that
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# are used by local branch instructions, tmp_label1 and tmp_label2
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# -------------------------------------------------------------
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# mv_if_canonical(mval,mainlabel, tmp_label1, tmp_label2)
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# -------------------------------------------------------------
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.macro mv_if_canonical mval, mainlabel, tmp_label1, tmp_label2
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testw $mval_m_nm,mval_w_mvtype(\mval)
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je \tmp_label1
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testw $mval_m_num_approx,mval_w_mvtype(\mval)
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jne \tmp_label2
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jmp \mainlabel
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\tmp_label1:
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pushl \mval
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call val_iscan
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addl $4,%esp
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cmpl $0,%eax
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jne \mainlabel
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\tmp_label2:
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.endm
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