89 lines
2.3 KiB
Factor
89 lines
2.3 KiB
Factor
! Copyright (C) 2008, 2009 Slava Pestov.
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! See http://factorcode.org/license.txt for BSD license.
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USING: kernel namespaces make sequences words math
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math.bitwise io.binary parser lexer fry ;
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IN: cpu.ppc.assembler.backend
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: insn ( operand opcode -- ) { 26 0 } bitfield 4 >be % ;
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: a-insn ( d a b c xo rc opcode -- )
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[ { 0 1 6 11 16 21 } bitfield ] dip insn ;
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: b-insn ( bo bi bd aa lk opcode -- )
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[ { 0 1 2 16 21 } bitfield ] dip insn ;
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: s>u16 ( s -- u ) HEX: ffff bitand ;
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: d-insn ( d a simm opcode -- )
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[ s>u16 { 0 16 21 } bitfield ] dip insn ;
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: define-d-insn ( word opcode -- )
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[ d-insn ] curry (( d a simm -- )) define-declared ;
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SYNTAX: D: CREATE scan-word define-d-insn ;
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: sd-insn ( d a simm opcode -- )
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[ s>u16 { 0 21 16 } bitfield ] dip insn ;
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: define-sd-insn ( word opcode -- )
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[ sd-insn ] curry (( d a simm -- )) define-declared ;
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SYNTAX: SD: CREATE scan-word define-sd-insn ;
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: i-insn ( li aa lk opcode -- )
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[ { 0 1 0 } bitfield ] dip insn ;
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: x-insn ( a s b rc xo opcode -- )
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[ { 1 0 11 21 16 } bitfield ] dip insn ;
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: (X) ( -- word quot )
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CREATE scan-word scan-word scan-word [ x-insn ] 3curry ;
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SYNTAX: X: (X) (( a s b -- )) define-declared ;
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: (1) ( quot -- quot' ) [ 0 ] prepose ;
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SYNTAX: X1: (X) (1) (( a s -- )) define-declared ;
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: xfx-insn ( d spr xo opcode -- )
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[ { 1 11 21 } bitfield ] dip insn ;
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: CREATE-MF ( -- word ) scan "MF" prepend create-in ;
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SYNTAX: MFSPR:
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CREATE-MF scan-word 5 shift [ 339 31 xfx-insn ] curry
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(( d -- )) define-declared ;
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: CREATE-MT ( -- word ) scan "MT" prepend create-in ;
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SYNTAX: MTSPR:
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CREATE-MT scan-word 5 shift [ 467 31 xfx-insn ] curry
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(( d -- )) define-declared ;
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: xo-insn ( d a b oe rc xo opcode -- )
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[ { 1 0 10 11 16 21 } bitfield ] dip insn ;
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: (XO) ( -- word quot )
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CREATE scan-word scan-word scan-word scan-word
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[ xo-insn ] 2curry 2curry ;
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SYNTAX: XO: (XO) (( a s b -- )) define-declared ;
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SYNTAX: XO1: (XO) (1) (( a s -- )) define-declared ;
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GENERIC# (B) 2 ( dest aa lk -- )
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M: integer (B) 18 i-insn ;
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GENERIC: BC ( a b c -- )
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M: integer BC 0 0 16 b-insn ;
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: CREATE-B ( -- word ) scan "B" prepend create-in ;
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SYNTAX: BC:
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CREATE-B scan-word scan-word
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'[ [ _ _ ] dip BC ] (( c -- )) define-declared ;
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SYNTAX: B:
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CREATE-B scan-word scan-word scan-word scan-word scan-word
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'[ _ _ _ _ _ b-insn ] (( bo -- )) define-declared ;
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