108 lines
1.6 KiB
Text
108 lines
1.6 KiB
Text
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asmprog:
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comment ?
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statement
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asmprog ; asmprog
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asmprog comment ? \n asmprog
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letter:
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[._a-zA-Z]
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digit:
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[0-9]
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identifier:
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letter (letter | digit)*
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digit [bf]
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string:
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'C-like string sequence'
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"C-like string sequence"
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number:
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C-like number
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comment:
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! .*
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statement:
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label-definition statement
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empty
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assignment
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instruction
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pseudo-instruction
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label-definition:
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identifier :
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digit :
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assignment:
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identifier = expression
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instruction:
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iX86-instruction
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pseudo-instruction:
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.extern identifier (, identifier)*
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.define identifier (, identifier)*
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.data1 expression (, expression)*
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.data2 expression (, expression)*
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.data4 expression (, expression)*
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.ascii string
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.asciz string
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.align expression
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.space expression
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.comm identifier , expression
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.sect identifier
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.base expression
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.assert expression
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.symb XXX
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.line XXX
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.file XXX
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.nolist
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.list
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iX86-pseudo
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expression:
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C-like expression with [ and ] for grouping
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iX86-instruction:
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prefix
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prefix iX86-instruction
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identifier
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identifier iX86operand
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identifier iX86operand , iX86operand
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identifier iX86operand : iX86operand
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prefix:
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o16
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o32
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a16
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a32
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rep
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repz
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repnz
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repe
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repne
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cseg | dseg | eseg | fseg | gseg | sseg
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iX86operand:
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register
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( register )
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expression
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( expression )
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expression ( register )
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expression ( register * [1248] )
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expression ? ( register ) ( register )
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expression ? ( register ) ( register * [1248] )
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register:
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al | bl | cl | dl | ah | bh | ch | dh
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ax | bx | cx | dx | si | di | bp | sp
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eax | ebx | ecx | edx | esi | edi | ebp | esp
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cs | ds | es | fs | gs | ss
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cr0 | cr1 | cr2 | cr3
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iX86-pseudo:
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.use16
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.use32
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