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Added some patterns

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This commit is contained in:
ceriel 1988-04-11 09:38:31 +00:00
parent 8a51ae7b94
commit 9abbd9eb10
1 changed files with 3 additions and 0 deletions
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mach/pdp/top/table
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@ -28,10 +28,13 @@ add ZERO,A {carry_dead(REST)} -> ;
add ONE, X {carry_dead(REST)} -> inc X;
sub ONE, X {carry_dead(REST)} -> dec X;
mov A,A -> tst A;
/* tst-elimination */
tst (sp)+ : tst X -> mov X,(sp)+;
tst (sp)+ : mov X,-(sp) -> mov X,(sp);
mov A,X : tst A -> mov A,X;
mov X,A : tst A -> mov X,A;
/* register subsumption */
mov REG,A : ANY A,X -> mov REG,A : ANY REG,X;