95 lines
2.7 KiB
Factor
95 lines
2.7 KiB
Factor
! Copyright (C) 2008 Slava Pestov.
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! See http://factorcode.org/license.txt for BSD license.
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USING: compiler.codegen.fixup cpu.architecture
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compiler.constants kernel namespaces make sequences words math
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math.bitwise io.binary parser lexer ;
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IN: cpu.ppc.assembler.backend
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: insn ( operand opcode -- ) { 26 0 } bitfield , ;
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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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: D: CREATE scan-word define-d-insn ; parsing
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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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: SD: CREATE scan-word define-sd-insn ; parsing
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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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: X: (X) (( a s b -- )) define-declared ; parsing
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: (1) ( quot -- quot' ) [ 0 ] prepose ;
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: X1: (X) (1) (( a s -- )) define-declared ; parsing
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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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: MFSPR:
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CREATE-MF scan-word 5 shift [ 339 31 xfx-insn ] curry
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(( d -- )) define-declared ; parsing
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: CREATE-MT ( -- word ) scan "MT" prepend create-in ;
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: MTSPR:
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CREATE-MT scan-word 5 shift [ 467 31 xfx-insn ] curry
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(( d -- )) define-declared ; parsing
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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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: XO: (XO) (( a s b -- )) define-declared ; parsing
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: XO1: (XO) (1) (( a s -- )) define-declared ; parsing
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GENERIC# (B) 2 ( dest aa lk -- )
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M: integer (B) 18 i-insn ;
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M: word (B) [ 0 ] 2dip (B) rc-relative-ppc-3 rel-word ;
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M: label (B) [ 0 ] 2dip (B) rc-relative-ppc-3 label-fixup ;
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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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M: word BC [ 0 BC ] dip rc-relative-ppc-2 rel-word ;
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M: label BC [ 0 BC ] dip rc-relative-ppc-2 label-fixup ;
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: CREATE-B ( -- word ) scan "B" prepend create-in ;
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: BC:
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CREATE-B scan-word scan-word
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[ rot BC ] 2curry (( c -- )) define-declared ; parsing
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: B:
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CREATE-B scan-word scan-word scan-word scan-word scan-word
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[ b-insn ] curry curry curry curry curry
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(( bo -- )) define-declared ; parsing
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