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[/] [eco32/] [trunk/] [fp/] [implementation/] [mmix/] [permu-plain.mms] - Rev 279
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* Permutation generator a la plain-changes (mockup only)
t IS $255
a GREG 0
p GREG 0
c GREG 0
fmask GREG #f
magic GREG #8844221188442211
ffmask GREG #ff000000
u IS $0
LOC #100
GREG @
T OCTA #194cb4594cb4594c,#b44,0
Main SET a,#1234
SLU a,a,12 [needed to make the MXOR stuff work]
LDA p,T
JMP 3F
1H SRU u,a,12 (trace this)
% SLU u,fmask,t
% SLU t,a,4
% XOR t,t,a
% AND t,t,u
% SRU u,t,4
% OR t,t,u
% XOR a,a,t
SLU u,a,t
MXOR u,magic,u
AND u,u,ffmask
SRU u,u,t
XOR a,a,u
SRU c,c,3
2H AND t,c,#1c
PBNZ t,1B
ADD p,p,8
3H LDO c,p,0
PBNZ c,2B
TRAP 0,Halt,0
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