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Further x86 assembler fixes

slava 2006-02-24 01:22:18 +00:00
parent 3c2d412dac
commit 2ed71bcaf3
1 changed files with 18 additions and 20 deletions
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38
library/compiler/x86/assembler.factor
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@ -110,28 +110,26 @@ TUPLE: indirect base index scale displacement ;
#! quirks.
dup canonicalize-EBP canonicalize-ESP ;
: set-indirect-index/scale ( { index scale } indirect -- )
over first over set-indirect-index
swap second swap set-indirect-scale ;
C: indirect ( base index scale displacement -- indirect )
[ set-indirect-displacement ] keep
[ set-indirect-scale ] keep
[ set-indirect-index ] keep
[ set-indirect-base ] keep
dup canonicalize ;
C: indirect ( spec -- indirect )
swap [
{
{ [ dup integer? ] [ over set-indirect-displacement ] }
{ [ dup register? ] [ over set-indirect-base ] }
{ [ dup array? ] [ over set-indirect-index/scale ] }
} cond
] each dup canonicalize ;
: [] ( reg/displacement -- indirect )
dup integer? [ >r f f f r> ] [ f f f ] if <indirect> ;
: >operand dup array? [ <indirect> ] when ;
: [+] ( reg displacement -- indirect )
dup integer? [ >r f f r> ] [ f f ] if <indirect> ;
: reg-code "register" word-prop 7 bitand ;
: indirect-base*
indirect-base [ EBP ] unless* reg-code ;
: indirect-base* indirect-base [ EBP ] unless* reg-code ;
: indirect-index*
indirect-index [ ESP ] unless* reg-code ;
: indirect-index* indirect-index [ ESP ] unless* reg-code ;
: indirect-scale* indirect-scale [ 0 ] unless* ;
GENERIC: sib-present?
@ -159,7 +157,7 @@ M: indirect modifier
drop BIN: 00
] if ;
M: register modifier drop BIN: 10 ;
M: register modifier drop BIN: 11 ;
: mod-r/m ( reg# indirect -- byte )
dup modifier 6 shift rot 3 shift
@ -169,7 +167,7 @@ M: register modifier drop BIN: 10 ;
dup sib-present? [
dup indirect-base*
over indirect-index* 3 shift bitor
swap indirect-scale 6 shift bitor
swap indirect-scale* 6 shift bitor
] [
drop f
] if ;
@ -233,7 +231,7 @@ UNION: operand register indirect ;
#! Sets the opcode's direction bit. It is set if the
#! destination is a direct register operand.
pick register? [ BIN: 10 bitor swapd ] when
>r 2dup t prefix r> assemble-1 register swap addressing ;
>r 2dup t prefix r> assemble-1 reg-code swap addressing ;
: from ( addr -- addr )
#! Relative to after next 32-bit immediate.
@ -363,7 +361,7 @@ M: operand CMP OCT: 071 2-operand ;
: 2-operand-sse ( dst src op1 op2 -- )
pick register-128? [ nip ] [ drop swapd ] if
>r 2dup t prefix HEX: 0f assemble-1 r>
assemble-1 register swap addressing ;
assemble-1 reg-code swap addressing ;
: MOVLPD ( dest src -- )
HEX: 66 assemble-1 HEX: 12 HEX: 13 2-operand-sse ;