189 lines
3.5 KiB
ArmAsm
189 lines
3.5 KiB
ArmAsm
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#################################################################
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# #
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# Copyright 2001, 2008 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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# PAGE ,132
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.title op_forloop.s
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# .386
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# .MODEL FLAT, C
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.include "linkage.si"
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.INCLUDE "g_msf.si"
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.INCLUDE "mval_def.si"
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.sbttl op_forloop
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# PAGE +
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# Called with the stack contents:
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# call return
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# ptr to index mval
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# ptr to step mval
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# ptr to terminator mval
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# loop address
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.DATA
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.extern frame_pointer
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# ten_dd DD 10
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ten_dd:
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.long 10
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.text
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.extern add_mvals
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.extern numcmp
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.extern s2n
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.extern underr
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term = 12
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step = 8
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indx = 4
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# PUBLIC op_forloop
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ENTRY op_forloop
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movl frame_pointer,%edx
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popl msf_mpc_off(%edx)
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enter $0, $0
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pushl %edi
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pushl %esi
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pushl %ebx
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movl indx(%ebp),%esi
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mv_force_defined %esi, l0
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movl %esi, indx(%ebp)
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mv_force_num %esi, l1
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movl indx(%ebp),%esi
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movl step(%ebp),%edi
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movw mval_w_mvtype(%esi),%ax
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movw mval_w_mvtype(%edi),%dx
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andw %dx,%ax
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testw $mval_m_int_without_nm,%ax
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je L66
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movl mval_l_m1(%esi),%eax
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addl mval_l_m1(%edi),%eax
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cmpl $MANT_HI,%eax
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jge L68
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cmpl $-MANT_HI,%eax
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jle L67
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movw $mval_m_int,mval_w_mvtype(%esi)
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movl %eax,mval_l_m1(%esi)
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jmp L63
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L67: movb $mval_esign_mask,mval_b_exp(%esi) # set sign bit
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negl %eax
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jmp L69
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L68: movb $0,mval_b_exp(%esi) # clear sign bit
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L69: movw $mval_m_nm,mval_w_mvtype(%esi)
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orb $69,mval_b_exp(%esi) # set exponent field
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movl %eax,%ebx
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movl $0,%edx
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idivl ten_dd,%eax
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movl %eax,mval_l_m1(%esi)
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imull $10,%eax,%eax
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subl %eax,%ebx
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imull $MANT_LO,%ebx,%ebx
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movl %ebx,mval_l_m0(%esi)
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jmp L63
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L66: pushl %esi
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pushl $0
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pushl %edi
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pushl %esi
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call add_mvals
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addl $16,%esp
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movl indx(%ebp),%esi
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L63: movl step(%ebp),%edi
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testw $mval_m_int_without_nm,mval_w_mvtype(%edi)
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jne a
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cmpb $0,mval_b_exp(%edi)
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jl b
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jmp a2
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a: cmpl $0,mval_l_m1(%edi)
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jl b
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a2: movl term(%ebp),%edi
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jmp e
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b: movl %esi,%edi # if step is negative, reverse compare
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movl term(%ebp),%esi
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e: # compare indx and term
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movw mval_w_mvtype(%esi),%ax
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movw mval_w_mvtype(%edi),%dx
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andw %dx,%ax
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testw $2,%ax
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je ccmp
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movl mval_l_m1(%esi),%eax
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subl mval_l_m1(%edi),%eax
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jmp tcmp
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ccmp: pushl %edi
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pushl %esi
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call numcmp
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addl $8,%esp
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cmpl $0,%eax
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tcmp: jle d
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movl indx(%ebp),%esi
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movl step(%ebp),%edi
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movw mval_w_mvtype(%esi),%ax
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movw mval_w_mvtype(%edi),%dx
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andw %dx,%ax
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testw $mval_m_int_without_nm,%ax
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je l66
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movl mval_l_m1(%esi),%eax
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subl mval_l_m1(%edi),%eax
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cmpl $MANT_HI,%eax
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jge l68
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cmpl $-MANT_HI,%eax
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jle l67
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movw $mval_m_int,mval_w_mvtype(%esi)
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movl %eax,mval_l_m1(%esi)
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jmp l63
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l67: movb $mval_esign_mask,mval_b_exp(%esi) # set sign bit
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negl %eax
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jmp l69
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l68: movb $0,mval_b_exp(%esi) # clear sign bit
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l69: movw $mval_m_nm,mval_w_mvtype(%esi)
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orb $69,mval_b_exp(%esi) # set exponent field
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movl %eax,%ebx
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movl $0,%edx
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idivl ten_dd,%eax
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movl %eax,mval_l_m1(%esi)
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imull $10,%eax,%eax
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subl %eax,%ebx
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imull $MANT_LO,%ebx,%ebx
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movl %ebx,mval_l_m0(%esi)
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jmp l63
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l66: pushl %esi
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pushl $1
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pushl %edi
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pushl %esi
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call add_mvals
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addl $16,%esp
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l63: popl %ebx
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popl %esi
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popl %edi
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leave
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addl $16,%esp # remove op_forloop arguments
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movl frame_pointer,%edx
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pushl msf_mpc_off(%edx)
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ret
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d: popl %ebx
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popl %esi
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popl %edi
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leave
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addl $12,%esp # remove term, step, indx; leave loop addr
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ret
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# op_forloop ENDP
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# END
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