435 lines
9.6 KiB
PHP
435 lines
9.6 KiB
PHP
;
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; äãªæ¨¨ ¤«ï à ¡®âë á ç¨á« ¬¨ float
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;
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; Š®«¨ç¥á⢮ § ª®¢ ç¨á« ¯®á«¥ § ¯ï⮩ (1-17)
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NumberSymbolsAD DW 5
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; Š®áâ âë (10 ¢ á⥯¥¨ N)
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MConst DQ 1.0E1,1.0E2,1.0E3,1.0E4,1.0E5
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DQ 1.0E6,1.0E7,1.0E8,1.0E9,1.0E10
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DQ 1.0E11,1.0E12,1.0E13,1.0E14,1.0E15
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DQ 1.0E16,1.0E17,1.0E18,1.0E19,1.0E20
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DQ 1.0E21,1.0E22,1.0E23,1.0E24,1.0E25
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DQ 1.0E26,1.0E27,1.0E28,1.0E29,1.0E30
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DQ 1.0E31,1.0E32,1.0E33,1.0E34,1.0E35
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DQ 1.0E36,1.0E37,1.0E38,1.0E39,1.0E40
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DQ 1.0E41,1.0E42,1.0E43,1.0E44,1.0E45
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DQ 1.0E46,1.0E47,1.0E48,1.0E49,1.0E50
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DQ 1.0E51,1.0E52,1.0E53,1.0E54,1.0E55
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DQ 1.0E56,1.0E57,1.0E58,1.0E59,1.0E60
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DQ 1.0E61,1.0E62,1.0E63,1.0E64,1.0E65
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DQ 1.0E66,1.0E67,1.0E68,1.0E69,1.0E70
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DQ 1.0E71,1.0E72,1.0E73,1.0E74,1.0E75
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DQ 1.0E76,1.0E77,1.0E78,1.0E79,1.0E80
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DQ 1.0E81,1.0E82,1.0E83,1.0E84,1.0E85
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DQ 1.0E86,1.0E87,1.0E88,1.0E89,1.0E90
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DQ 1.0E91,1.0E92,1.0E93,1.0E94,1.0E95
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DQ 1.0E96,1.0E97,1.0E98,1.0E99,1.0E100
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DQ 1.0E101,1.0E102,1.0E103,1.0E104,1.0E105
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DQ 1.0E106,1.0E107,1.0E108,1.0E109,1.0E110
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DQ 1.0E111,1.0E112,1.0E113,1.0E114,1.0E115
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DQ 1.0E116,1.0E117,1.0E118,1.0E119,1.0E120
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DQ 1.0E121,1.0E122,1.0E123,1.0E124,1.0E125
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DQ 1.0E126,1.0E127,1.0E128
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; —¨á«® á ¯« ¢ î饩 § ¯ï⮩ ¤¢®©®© â®ç®áâ¨
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Data_Double DQ ?
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; —¨á«® ¢ BCD-ä®à¬ â¥
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Data_BCD DT ?
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; ‚ᯮ¬®£ ⥫ìë© ä« £
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Data_Flag DB ?
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; ‡ ª १ã«ìâ â (¥á«¨ ¥ 0 - ®âà¨æ ⥫쮥 ç¨á«®)
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Data_Sign DB ?
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; ‡ ª १ã«ìâ â - 0 ¤«ï ..e+.. ¨ 1 ¤«ï ..e-..
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Data_Sign_Exp DB ?
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align 4
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; ‘âப ¤«ï åà ¥¨ï ç¨á« ¢ ª®¤¥ ASCII
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Data_String DB 32 DUP (?)
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;*******************************************************
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;* <EFBFBD><EFBFBD>…Ž<EFBFBD><EFBFBD>€‡Ž‚€<EFBFBD>ˆ… —ˆ‘‹€ ‘ <EFBFBD>‹€‚€ž™…‰ ‡€<EFBFBD>Ÿ’Ž‰ ‚ ‘’<EFBFBD>ŽŠ“ *
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;* —¨á«® ¨¬¥¥â ä®à¬ â á 㤢®¥®© â®ç®áâìî, १ã«ìâ â *
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;* ¢ë¤ ¥âáï ¢ ¤¥áïâ¨ç®¬ ª®¤¥, ¢ "¡ë⮢®¬" ä®à¬ ⥠á *
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;* 䨪á¨à®¢ ë¬ ª®«¨ç¥á⢮¬ § ª®¢ ¯®á«¥ § ¯ï⮩. *
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;* ‚å®¤ë¥ ¯ à ¬¥âàë: *
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;* Data_Double - ¯à¥®¡à §ã¥¬®¥ ç¨á«®; *
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;* NumberSymbolsAD - ª®«¨ç¥á⢮ § ª®¢ ¯®á«¥ *
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;* § ¯ï⮩ (0-17). *
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;* ‚ëå®¤ë¥ ¯ à ¬¥âàë: *
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;* Data_String - áâப -१ã«ìâ â. *
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;*******************************************************
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align 4
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DoubleFloat_to_String:
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pushad
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; <EFBFBD>¥§ã«ìâ â § ¯¨áë¢ âì ¢ áâபã Data_String
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mov EDI, Data_String
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; ‘¤¢¨£ ¥¬ ç¨á«® ¢«¥¢® NumberSymbolsAD
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; ¤¥áïâ¨çëå à §à冷¢
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fninit ;á¡à®á ᮯà®æ¥áá®à
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fld [Data_Double] ;§ £à㧨âì ç¨á«®
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xor ebx,ebx
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mov BX,[NumberSymbolsAD]
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cmp BX, 0
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je .NoShifts ;¥â æ¨äà ¯®á«¥ § ¯ï⮩
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jl .Error ;®è¨¡ª
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dec BX
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lea ebx,[MConst+8*ebx]
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fmul qword [EBX] ;㬮¦¨âì ª®áâ âã
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.NoShifts:
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; ˆ§¢«¥çì ç¨á«® ¢ ª®¤¥ BCD
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fbstp [Data_BCD]
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; <EFBFBD>஢¥à¨âì १ã«ìâ â ¯¥à¥¯®«¥¨¥
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mov AX,word [Data_BCD + 8]
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cmp AX,0FFFFh ;"¤¥áïâ¨ç®¥" ¯¥à¥¯®«¥¨¥?
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je .Overflow
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; ‚뤥«¨âì § ª ç¨á« ¨ § ¯¨á âì ¥£® ¢ ASCII-ª®¤¥
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mov AL, byte [Data_BCD + 9]
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and AL,AL
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jz .NoSign
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mov AL,'-'
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stosb
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.NoSign:
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; <EFBFBD> ᯠª®¢ âì ç¨á«® ¢ ª®¤ ASCII
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mov ebx,8 ;ᬥ饨¥ ¯®á«¥¤¥© ¯ àë æ¨äà
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mov ecx,9 ;áç¥â稪 ¯ à æ¨äà
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; Ž¯à¥¤¥«¨âì ¯®§¨æ¨î ¤¥áïâ¨ç®© â®çª¨ ¢ ç¨á«¥
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mov DX,18
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sub DX,[NumberSymbolsAD]
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js .Error ;®è¨¡ª , ¥á«¨ ®âà¨æ ⥫ì ï
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jz .Error ;¨«¨ ã«¥¢ ï ¯®§¨æ¨ï
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.NextPair:
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; ‡ £à㧨âì ®ç¥à¥¤ãî ¯ àã à §à冷¢
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mov AL, byte [ebx + Data_BCD]
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mov AH,AL
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; ‚뤥«¨âì, ¯¥à¥¢¥á⨠¢ ASCII ¨
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; á®åà ¨âì áâ àèãî â¥âà ¤ã
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shr AL,4
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add AL,'0'
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stosb
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dec DX
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jnz .N0
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mov AL,'.'
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stosb
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.N0: ; ‚뤥«¨âì, ¯¥à¥¢¥á⨠¢ ASCII ¨
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; á®åà ¨âì ¬« ¤èãî â¥âà ¤ã
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mov AL,AH
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and AL,0Fh
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add AL,'0'
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stosb
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dec DX
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jnz .N1
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mov AL,'.'
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stosb
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.N1:
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dec BX
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loop .NextPair
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mov AL,0
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stosb
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; “¡à âì ¥§ ç 騥 㫨 á«¥¢
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mov EDI, Data_String
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mov ESI, Data_String
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; <EFBFBD>யãáâ¨âì § ª ç¨á« , ¥á«¨ ® ¥áâì
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cmp byte [ESI],'-'
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jne .N2
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inc ESI
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inc EDI
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.N2: ; ‡ £à㧨âì ¢ áç¥â稪 横« ª®«¨ç¥á⢮ à §à冷¢
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; ç¨á« ¯«îá 1 (¡ ©â ¤¥áïâ¨ç®© â®çª¨)
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mov ecx,18+1+1
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; <EFBFBD>யãáâ¨âì ¥§ ç 騥 㫨
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.N3:
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cmp byte [ESI],'0'
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jne .N4
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cmp byte [ESI+1],'.'
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je .N4
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inc ESI
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loop .N3
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; Žè¨¡ª - ¥â § ç é¨å æ¨äà
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jmp .Error
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; ‘ª®¯¨à®¢ âì § ç éãî ç áâì ç¨á« ¢ ç «® áâப¨
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align 4
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.N4: rep movsb
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jmp .End
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; Žè¨¡ª
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align 4
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.Error:
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mov AL,'E'
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stosb
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mov AL,'R'
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stosb
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mov AL,'R'
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stosb
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xor AL,AL
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stosb
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jmp .End
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; <EFBFBD>¥à¥¯®«¥¨¥ à §à冷© á¥âª¨
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align 4
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.Overflow:
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mov AL,'#'
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stosb
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xor AL,AL
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stosb
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; Š®¥æ ¯à®æ¥¤ãàë
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align 4
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.End:
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popad
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ret
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;****************************************************
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;* <EFBFBD><EFBFBD>…Ž<EFBFBD><EFBFBD>€‡Ž‚€’œ ‘’<EFBFBD>ŽŠ“ ‚ —ˆ‘‹Ž ‘ <EFBFBD>‹€‚€ž™…‰ ‡€<EFBFBD>Ÿ’Ž‰ *
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;* (ç¨á«® ¨¬¥¥â ®¡ëçë©, "¡ë⮢®©" ä®à¬ â) *
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;* ‚å®¤ë¥ ¯ à ¬¥âàë: *
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;* Data_String - ç¨á«® ¢ ª®¤¥ ASCII. *
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;* ‚ëå®¤ë¥ ¯ à ¬¥âàë: *
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;* Data_Double - ç¨á«® ¢ ¤¢®¨ç®¬ ª®¤¥. *
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;****************************************************
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align 4
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String_to_DoubleFloat:
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pushad
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cld
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; Žç¨é ¥¬ Data_BCD
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mov dword [Data_BCD],0
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mov dword [Data_BCD+4],0
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mov word [Data_BCD+8],0
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; Žç¨é ¥¬ ¡ ©â § ª
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mov [Data_Sign],0
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; ‡ ®á¨¬ ¢ esi 㪠§ ⥫ì áâபã
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mov esi, Data_String
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; <EFBFBD>யã᪠¥¬ ¯à®¡¥«ë ¯¥à¥¤ ç¨á«®¬
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mov ecx,64 ;§ é¨â ®â § 横«¨¢ ¨ï
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.ShiftIgnore:
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lodsb
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cmp al,' '
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jne .ShiftIgnoreEnd
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loop .ShiftIgnore
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jmp .Error
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align 4
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.ShiftIgnoreEnd:
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; <EFBFBD>஢¥à塞 § ª ç¨á«
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cmp al,'-'
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jne .Positive
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mov [Data_Sign],80h
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lodsb
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.Positive:
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mov [Data_Flag],0 ;¯à¨§ ª «¨ç¨ï â®çª¨
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xor edx,edx ;¯®§¨æ¨ï â®çª¨
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mov ecx,18 ;¬ ªá. ç¨á«® à §à冷¢
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align 4
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.ASCIItoBCDConversion:
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cmp al,'.' ;â®çª ?
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jne .NotDot
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cmp [Data_Flag],0 ;â®çª ¥ ¢áâà¥ç « áì?
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jne .Error ;¥á«¨ â®çª 㦥 ¡ë«
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mov [Data_Flag],1
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lodsb
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or al,al ;ª®¥æ áâப¨?
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jnz .NotDot
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jmp .ASCIItoBCDConversionEnd
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align 4
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.NotDot:
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; “¢¥«¨ç¨âì 1 § 票¥ ¯®§¨æ¨¨ â®çª¨,
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; ¥á«¨ ® ¥é¥ ¥ ¢áâà¥ç « áì
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cmp [Data_Flag],0
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jnz .Figures
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inc edx
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.Figures:
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cmp al,'e'
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je .exp_form
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cmp al,'E'
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jne @f
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.exp_form:
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call string_ExpForm ;¥á«¨ ç¨á«® ¢ ä®à¬ ⥠..e..
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or al,al
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jnz .Error
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jmp .ASCIItoBCDConversionEnd
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@@:
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; ‘¨¬¢®«ë ç¨á« ¤®«¦ë ¡ëâì æ¨äà ¬¨
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cmp al,'0'
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jb .Error
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cmp al,'9'
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ja .Error
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; <EFBFBD>¨è¥¬ ®ç¥à¥¤ãî æ¨äàã ¢ ¬« ¤èãî â¥âà ¤ã BCD
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and al,15 ;ᨬ¢®«ë 0-9 ¯¥à¥¢®¤¨¬ ¢ ç¨á«®
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or byte [Data_BCD],al
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; <EFBFBD>஢¥àª ª®¥æ áâப¨
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cmp byte [esi],0
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je .ASCIItoBCDConversionEnd
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; ‘¤¢¨£ ¥¬ BCD 4 à §àï¤ ¢«¥¢®
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; (ᤢ¨£ ¥¬ áâ à訥 2 ¡ ©â )
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mov ax,word [Data_BCD+6]
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shld word [Data_BCD+8],ax,4
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; (ᤢ¨£ ¥¬ á।¨¥ 4 ¡ ©â )
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mov eax,dword [Data_BCD]
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shld dword [Data_BCD+4],eax,4
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; (ᤢ¨£ ¥¬ ¬« ¤è¨¥ 4 ¡ ©â )
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shl dword [Data_BCD],4
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; ‡ £à㦠¥¬ á«¥¤ãî騩 ᨬ¢®« ¢ AL
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lodsb
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loop .ASCIItoBCDConversion ;¥á«¨ ¥ ª®¬¯¨«. â® ¯®áâ ¢¨âì dec ecx, jnz ...
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; …᫨ 19-© ᨬ¢®« ¥ 0 ¨ ¥ â®çª ,
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; â® ®è¨¡ª ¯¥à¥¯®«¥¨ï
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cmp al,'.'
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jne .NotDot2
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inc ecx ;¯à®¯ã᪠â®çª¨ ¢ ª®æ¥ ®ç¥ì ¡®«ì讣® ç¨á«
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lodsb
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.NotDot2:
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or al,al ;¯¥à¥¯®«¥¨¥ à §à冷© á¥âª¨?
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jz .ASCIItoBCDConversionEnd
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align 4
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.Error: ; <EFBFBD>ਠ«î¡®© ®è¨¡ª¥ ®¡ã«¨âì १ã«ìâ â
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fldz ;§ ¥á⨠®«ì á á⥪ ᮯà®æ¥áá®à
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fstp [Data_Double]
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jmp .End
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; <EFBFBD><EFBFBD>…Ž<EFBFBD><EFBFBD>€‡Ž‚€’œ —ˆ‘‹Ž ˆ‡ ŠŽ„€ BCD ‚ ‚…™…‘’‚…<EFBFBD><EFBFBD>Ž… —ˆ‘‹Ž
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.ASCIItoBCDConversionEnd:
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; ‚¯¨á âì § ª ¢ áâ à訩 ¡ ©â
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mov al,[Data_Sign]
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mov byte [Data_BCD+9],al
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; ‘¡à®á¨âì ॣ¨áâàë ᮯà®æ¥áá®à
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fninit
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; ‡ £à㧨âì ¢ ᮯà®æ¥áá®à ç¨á«® ¢ BCD-ä®à¬ â¥
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fbld [Data_BCD]
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; ‚ëç¨á«¨âì ®¬¥à ¤¥«¨â¥«ï ¨«¨ ¬®¦¨â¥«ï
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lea ebx,[ecx+edx-18]
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cmp ebx,0
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jle .NoMul ;¥á«¨ ç¨á«® e-..
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dec ebx
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jz .NoDiv ;¥á«¨ ç¨á«® e+0
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dec ebx
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lea ebx,[MConst+8*ebx]
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fmul qword [ebx] ;㬮¦¨âì ª®áâ âã (¤«ï ç¨á¥« á ¯à¨áâ ¢ª®© e+..)
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jmp .NoDiv
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.NoMul:
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neg ebx
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lea ebx,[MConst+8*ebx]
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fdiv qword [ebx] ;à §¤¥«¨âì ª®áâ âã
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.NoDiv: ;‚ë£à㧨âì ç¨á«® ¢ ¤¢®¨ç®¬ ä®à¬ â¥
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fstp [Data_Double]
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.End:
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popad
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ret
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;output:
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; eax - 1 if error
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; edx += size
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align 4
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proc string_ExpForm uses ebx
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mov [Data_Sign_Exp],0
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xor eax,eax
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lodsb
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cmp al,'+'
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jne @f
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lodsb
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@@:
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cmp al,'-'
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jne @f
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inc [Data_Sign_Exp]
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lodsb
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@@:
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xor ebx,ebx
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.cycle0:
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cmp al,0
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je .cycle0end
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cmp al,9
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je .cycle0end
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cmp al,10
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je .cycle0end
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cmp al,13
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je .cycle0end
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cmp al,' '
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je .cycle0end
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cmp al,'0'
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jb .Error
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cmp al,'9'
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ja .Error
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imul ebx,10
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and eax,15 ;ᨬ¢®«ë 0-9 ¯¥à¥¢®¤¨¬ ¢ ç¨á«®
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add ebx,eax
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lodsb
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jmp .cycle0
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.cycle0end:
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cmp [Data_Sign_Exp],0
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je @f
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neg ebx
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@@:
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cmp [Data_Flag],0 ;â®çª ¥ ¢áâà¥ç « áì?
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jne @f
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dec edx
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@@:
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add edx,ebx
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xor eax,eax
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jmp @f
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.Error:
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xor eax,eax
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inc eax
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@@:
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ret
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endp
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align 4
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proc str_cat uses eax ecx edi esi, str1:dword, str2:dword
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mov esi,dword[str2]
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stdcall str_len,esi
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mov ecx,eax
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inc ecx
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mov edi,dword[str1]
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stdcall str_len,edi
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add edi,eax
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cld
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repne movsb
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ret
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endp
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;output:
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; eax = strlen
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align 4
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proc str_len, str1:dword
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mov eax,[str1]
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@@:
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cmp byte[eax],0
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je @f
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inc eax
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jmp @b
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@@:
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sub eax,[str1]
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ret
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endp
|
||
|
||
align 4
|
||
proc String_crop_0 uses eax ebx ecx edi
|
||
mov edi,Data_String
|
||
mov al,'.'
|
||
mov ecx,32
|
||
repne scasb
|
||
mov ebx,edi
|
||
mov edi,Data_String
|
||
xor al,al
|
||
mov ecx,32
|
||
repne scasb
|
||
cmp ebx,edi
|
||
jg .end_f
|
||
dec edi
|
||
.cycle0:
|
||
dec edi
|
||
cmp edi,Data_String
|
||
jle .end_f
|
||
cmp byte[edi],'0'
|
||
jne .cycle0end
|
||
mov byte[edi],0
|
||
jmp .cycle0
|
||
.cycle0end:
|
||
cmp byte[edi],'.'
|
||
jne .end_f
|
||
mov byte[edi],0
|
||
.end_f:
|
||
ret
|
||
endp |