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kolibrios/programs/develop/libraries/utils/trunk/_atof.inc

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Add COFF libraries "utils.obj" atof,ftoa,random support for exponent, high accuracy, not normalized form of writing git-svn-id: svn://kolibrios.org@4721 a494cfbc-eb01-0410-851d-a64ba20cac60
2014-03-31 09:57:30 +04:00
;-----------------------------------------------------------------------------+
; <EFBFBD>㭪<EFBFBD><EFBFBD><EFBFBD> <EFBFBD>८<EFBFBD>ࠧ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <EFBFBD><EFBFBD>ப<EFBFBD> <EFBFBD> <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>⢥<EFBFBD><EFBFBD><EFBFBD><EFBFBD> <EFBFBD><EFBFBD>᫮ [ by ManHunter / PCL ] |
;-----------------------------------------------------------------------------|
; <EFBFBD><EFBFBD>ࠬ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>: |
; lpStr - 㪠<EFBFBD><EFBFBD>⥫<EFBFBD> <EFBFBD><EFBFBD> <EFBFBD><EFBFBD>室<EFBFBD><EFBFBD><EFBFBD> <EFBFBD><EFBFBD>ப<EFBFBD> <EFBFBD> <EFBFBD><EFBFBD>ଠ<EFBFBD><EFBFBD> ASCIIZ |
; lpResult - 㪠<EFBFBD><EFBFBD>⥫<EFBFBD> <EFBFBD><EFBFBD> <EFBFBD><EFBFBD>६<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>-<EFBFBD>ਥ<EFBFBD><EFBFBD><EFBFBD><EFBFBD> <EFBFBD><EFBFBD><EFBFBD>祭<EFBFBD><EFBFBD> |
; <EFBFBD><EFBFBD> <EFBFBD><EFBFBD>室<EFBFBD>: |
; EAX = 1 - <EFBFBD><EFBFBD>ப<EFBFBD> <EFBFBD>ᯥ譮 <EFBFBD>८<EFBFBD>ࠧ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> |
; EAX = 0 - <EFBFBD><EFBFBD>ப<EFBFBD> <EFBFBD><EFBFBD> <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <EFBFBD><EFBFBD><EFBFBD><EFBFBD> <EFBFBD>८<EFBFBD>ࠧ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <EFBFBD> <EFBFBD><EFBFBD>᫮ |
;-----------------------------------------------------------------------------+
proc string2float lpStr:DWORD, lpResult:DWORD
; <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <EFBFBD><EFBFBD>६<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
locals
dot dd ? ; <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>⥫<EFBFBD> <EFBFBD><EFBFBD> <EFBFBD>஡<EFBFBD><EFBFBD><EFBFBD> <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
exp dd ? ; <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>⥫<EFBFBD> <EFBFBD><EFBFBD> <EFBFBD><EFBFBD>ᯮ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
digit dd ? ; <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
endl
pusha
; <EFBFBD>஢<EFBFBD>ઠ <EFBFBD><EFBFBD>ப<EFBFBD> <EFBFBD><EFBFBD> <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
mov [digit],1
mov [exp],0
mov [dot],0
mov esi,[lpStr]
; <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <EFBFBD><EFBFBD><EFBFBD> <EFBFBD><EFBFBD><EFBFBD><EFBFBD> <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <EFBFBD><EFBFBD><EFBFBD><EFBFBD> ⮫쪮 <EFBFBD> <EFBFBD><EFBFBD>砫<EFBFBD>
cmp byte [esi],'-'
je @f
cmp byte [esi],'+'
jne .loc_chk_loop
@@:
inc esi
; <EFBFBD><EFBFBD>᫥ <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <EFBFBD><EFBFBD> <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <EFBFBD><EFBFBD><EFBFBD><EFBFBD> <EFBFBD><EFBFBD><EFBFBD><EFBFBD>
cmp byte [esi],0
je .loc_chk_error
.loc_chk_loop:
; <EFBFBD> <EFBFBD><EFBFBD>ப<EFBFBD> <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <EFBFBD><EFBFBD><EFBFBD><EFBFBD> <EFBFBD><EFBFBD><EFBFBD><EFBFBD>, <EFBFBD><EFBFBD>ᯮ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <EFBFBD> <EFBFBD><EFBFBD> <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <EFBFBD><EFBFBD>窨
lodsb
or al,al
jz .loc_chk_complete
cmp al,'e'
je .loc_chk_exp
cmp al,'E'
je .loc_chk_exp
cmp al,'.'
je .loc_chk_dot
cmp al,'0'
jb .loc_chk_error
cmp al,'9'
ja .loc_chk_error
jmp .loc_chk_loop
.loc_chk_dot:
; <EFBFBD><EFBFBD>窠 <EFBFBD> <EFBFBD><EFBFBD>ப<EFBFBD> 㦥 <EFBFBD><EFBFBD><EFBFBD><EFBFBD>?
cmp [dot],0
; <EFBFBD><EFBFBD>ப<EFBFBD> <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>४<EFBFBD><EFBFBD><EFBFBD><EFBFBD> <EFBFBD><EFBFBD>ଠ<EFBFBD>
jne .loc_chk_error
; <EFBFBD><EFBFBD>ᯮ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> 㦥 <EFBFBD><EFBFBD><EFBFBD><EFBFBD>?
cmp [exp],0
; <EFBFBD><EFBFBD>ப<EFBFBD> <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>४<EFBFBD><EFBFBD><EFBFBD><EFBFBD> <EFBFBD><EFBFBD>ଠ<EFBFBD>
jne .loc_chk_error
; <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>⥫<EFBFBD> <EFBFBD><EFBFBD> <EFBFBD>஡<EFBFBD><EFBFBD><EFBFBD> <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
mov [dot],esi
jmp .loc_chk_loop
.loc_chk_exp:
; <EFBFBD><EFBFBD>ᯮ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> 㦥 <EFBFBD><EFBFBD><EFBFBD><EFBFBD>?
cmp [exp],0
; <EFBFBD><EFBFBD>ப<EFBFBD> <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>४<EFBFBD><EFBFBD><EFBFBD><EFBFBD> <EFBFBD><EFBFBD>ଠ<EFBFBD>
jne .loc_chk_error
; <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>⥫<EFBFBD> <EFBFBD><EFBFBD> <EFBFBD><EFBFBD>砫<EFBFBD> <EFBFBD><EFBFBD>ᯮ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
mov [exp],esi
; <EFBFBD>ࠧ<EFBFBD> <EFBFBD><EFBFBD>᫥ <EFBFBD><EFBFBD>ᯮ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <EFBFBD><EFBFBD> <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <EFBFBD><EFBFBD><EFBFBD><EFBFBD> <EFBFBD><EFBFBD><EFBFBD><EFBFBD>
cmp byte [esi],0
je .loc_chk_error
; <EFBFBD><EFBFBD>᫥ <EFBFBD><EFBFBD>ᯮ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <EFBFBD><EFBFBD><EFBFBD><EFBFBD> <EFBFBD><EFBFBD><EFBFBD><EFBFBD>
cmp byte [esi],'-'
je @f
cmp byte [esi],'+'
jne .loc_chk_loop
@@:
inc esi
; <EFBFBD>ࠧ<EFBFBD> <EFBFBD><EFBFBD>᫥ <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <EFBFBD><EFBFBD> <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <EFBFBD><EFBFBD><EFBFBD><EFBFBD> <EFBFBD><EFBFBD><EFBFBD><EFBFBD>
cmp byte [esi],0
je .loc_chk_error
; <EFBFBD>஢<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> ᫥<EFBFBD><EFBFBD><EFBFBD>騩 ᨬ<EFBFBD><EFBFBD><EFBFBD>
jmp .loc_chk_loop
.loc_chk_error:
; <EFBFBD><EFBFBD>ப<EFBFBD> <EFBFBD><EFBFBD> <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <EFBFBD><EFBFBD>᫮<EFBFBD>
mov [digit],0
jmp .loc_ret
.loc_chk_complete:
; <EFBFBD><EFBFBD><EFBFBD>樠<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> ᮯ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
finit
; <EFBFBD><EFBFBD>砫쭮<EFBFBD> <EFBFBD><EFBFBD><EFBFBD>祭<EFBFBD><EFBFBD> <EFBFBD><EFBFBD>᫠
fldz
; <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>⥫<EFBFBD> <EFBFBD> <EFBFBD><EFBFBD><EFBFBD><EFBFBD>⥫<EFBFBD>
mov [digit],10
fild dword [digit]
; <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <EFBFBD><EFBFBD><EFBFBD>祭<EFBFBD><EFBFBD> <EFBFBD><EFBFBD> <EFBFBD><EFBFBD><EFBFBD><EFBFBD>⮩
mov esi,[lpStr]
; <EFBFBD> <EFBFBD><EFBFBD>砫<EFBFBD> <EFBFBD><EFBFBD>ப<EFBFBD> <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>?
cmp byte [esi],'-'
je @f
cmp byte [esi],'+'
jne .loc_before_dot
@@:
inc esi
; <EFBFBD>८<EFBFBD>ࠧ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <EFBFBD><EFBFBD>᫠ <EFBFBD><EFBFBD> <EFBFBD><EFBFBD><EFBFBD><EFBFBD>⮩
.loc_before_dot:
lodsb
; <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <EFBFBD><EFBFBD>ப<EFBFBD>?
or al,al
jz .loc_complete
cmp al,'.'
je .loc_complete_before_dot
cmp al,'e'
je .loc_exp
cmp al,'E'
je .loc_exp
; <EFBFBD><EFBFBD><EFBFBD>।<EFBFBD><EFBFBD><EFBFBD> <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
sub al,'0'
movzx eax,al
mov [digit],eax
; <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
fild dword [digit]
fxch st2
fmul st0,st1
fxch st2
fadd st2,st0
ffree st0 ; <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <EFBFBD>⥪
fincstp
jmp .loc_before_dot
; <EFBFBD>८<EFBFBD>ࠧ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <EFBFBD>஡<EFBFBD><EFBFBD><EFBFBD> <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <EFBFBD><EFBFBD>᫠
.loc_complete_before_dot:
; <EFBFBD>஡<EFBFBD><EFBFBD><EFBFBD> <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <EFBFBD><EFBFBD><EFBFBD><EFBFBD>?
cmp [dot],0
je .loc_complete_after_dot
; <EFBFBD><EFBFBD>ᯮ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <EFBFBD><EFBFBD><EFBFBD><EFBFBD>?
cmp [exp],0
je @f
; <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>⥫<EFBFBD> <EFBFBD><EFBFBD> <EFBFBD><EFBFBD>砫<EFBFBD> <EFBFBD><EFBFBD>ᯮ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
mov esi,[exp]
jmp .loc_start_after_dot
@@:
; <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <EFBFBD><EFBFBD>७<EFBFBD><EFBFBD><EFBFBD><EFBFBD> 㪠<EFBFBD><EFBFBD>⥫<EFBFBD> <EFBFBD><EFBFBD> <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <EFBFBD><EFBFBD>ப<EFBFBD>
xor ecx,ecx
dec ecx
xor eax,eax
mov edi,esi
repne scasb
mov esi,edi
.loc_start_after_dot:
std
dec esi
dec esi
; <EFBFBD>஡<EFBFBD><EFBFBD><EFBFBD> <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
fldz
fxch st1
.loc_after_dot:
lodsb
; <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <EFBFBD>஡<EFBFBD><EFBFBD><EFBFBD> <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>?
cmp al,'.'
je .loc_complete_after_dot
; <EFBFBD><EFBFBD><EFBFBD>।<EFBFBD><EFBFBD><EFBFBD> <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
sub al,'0'
movzx eax,al
mov [digit],eax
; <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
fild dword [digit]
fadd st2,st0
fxch st2
fdiv st0,st1
fxch st2
ffree st0 ; <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <EFBFBD>⥪
fincstp
jmp .loc_after_dot
.loc_complete_after_dot:
; <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> 䫠<EFBFBD> <EFBFBD><EFBFBD><EFBFBD>ࠢ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
cld
ffree st0 ; <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <EFBFBD>⥪
fincstp
; <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <EFBFBD>஡<EFBFBD><EFBFBD><EFBFBD> <EFBFBD> 楫<EFBFBD><EFBFBD> <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
fadd st1,st0
.loc_exp:
; <EFBFBD><EFBFBD>ᯮ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <EFBFBD><EFBFBD><EFBFBD><EFBFBD>?
cmp [exp],0
je .loc_complete
; <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <EFBFBD><EFBFBD><EFBFBD>祭<EFBFBD><EFBFBD> <EFBFBD><EFBFBD>ᯮ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
xor ecx,ecx
mov esi,[exp]
; <EFBFBD> <EFBFBD><EFBFBD>砫<EFBFBD> <EFBFBD><EFBFBD>ப<EFBFBD> <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>?
cmp byte [esi],'-'
je @f
cmp byte [esi],'+'
jne .loc_start_exp
@@:
inc esi
.loc_start_exp:
lodsb
or al,al
jz .loc_end_exp
sub al,'0'
movzx eax,al
imul ecx,10
add ecx,eax
jmp .loc_start_exp
.loc_end_exp:
or ecx,ecx
jz .loc_complete
ffree st0 ; <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <EFBFBD>⥪
fincstp
mov [digit],10
fild dword [digit]
; <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <EFBFBD><EFBFBD><EFBFBD> 㬭<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>?
mov esi,[exp]
cmp byte [esi],'-'
je .loc_exp_divide
.loc_exp_multiple:
fmul st1,st0
loop .loc_exp_multiple
jmp .loc_complete
.loc_exp_divide:
fdiv st1,st0
loop .loc_exp_divide
.loc_complete:
ffree st0 ; <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <EFBFBD>⥪
fincstp
; <EFBFBD> <EFBFBD><EFBFBD>砫<EFBFBD> <EFBFBD><EFBFBD>ப<EFBFBD> <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>?
mov esi,[lpStr]
cmp byte [esi],'-'
jne @f
; <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <EFBFBD><EFBFBD><EFBFBD><EFBFBD> <EFBFBD><EFBFBD>᫠
fchs
@@:
; <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <EFBFBD><EFBFBD><EFBFBD>祭<EFBFBD><EFBFBD> <EFBFBD> <EFBFBD>祩<EFBFBD><EFBFBD> <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
mov eax,[lpResult]
; <EFBFBD>᫨ <EFBFBD>ॡ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <EFBFBD><EFBFBD><EFBFBD><EFBFBD>襭<EFBFBD><EFBFBD><EFBFBD> <EFBFBD><EFBFBD>筮<EFBFBD><EFBFBD><EFBFBD>, <EFBFBD><EFBFBD> <EFBFBD>ਥ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>
; <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> ࠧ<EFBFBD><EFBFBD><EFBFBD> QWORD, <EFBFBD> ᫥<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
; <EFBFBD><EFBFBD><EFBFBD><EFBFBD> <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <EFBFBD><EFBFBD> fstp qword [eax]
fstp tword [eax]
; <EFBFBD>ᯥ譮<EFBFBD> <EFBFBD>८<EFBFBD>ࠧ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
mov [digit],1
.loc_ret:
popa
; <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <EFBFBD>८<EFBFBD>ࠧ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
mov eax,[digit]
ret
endp
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