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start using stash (STH)

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~d6 2021-12-28 15:04:51 -05:00
parent 8a31ad4c8c
commit 524fec6ed1
1 changed files with 4 additions and 6 deletions
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math32.tal
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@ -130,12 +130,10 @@
( shift right by 0-7 bits ) ( shift right by 0-7 bits )
@right-shift0 ( x** n^ -> x<<n ) @right-shift0 ( x** n^ -> x<<n )
#0000 ;sh/z0 STA2 #0000 ;sh/z2 STA2 STHk SFT ;sh/z3 STA ( write z3 )
;sh/r STA ( n -> r ) #00 STHkr SFT2 #00 ;sh/z3 LDA ORA2 ;sh/z2 STA2 ( write z2,z3 )
;sh/r LDA SFT ;sh/z3 STA ( write z3 ) #00 STHkr SFT2 #00 ;sh/z2 LDA ORA2 ;sh/z1 STA2 ( write z1,z2 )
#00 ;sh/r LDA SFT2 ;sh/z2 LDA2 ORA2 ;sh/z2 STA2 ( write z2,z3 ) #00 STHr SFT2 #00 ;sh/z1 LDA ORA2 ;sh/z0 STA2 ( write z0,z1 )
#00 ;sh/r LDA SFT2 ;sh/z1 LDA2 ORA2 ;sh/z1 STA2 ( write z1,z2 )
#00 ;sh/r LDA SFT2 ;sh/z0 LDA2 ORA2 ;sh/z0 STA2 ( write z0,z1 )
;sh/z0 LDA2 ;sh/z2 LDA2 ;sh/z0 LDA2 ;sh/z2 LDA2
RTN RTN