GetReg
and
GenCode
: Example 2/10
reserved
free
reserved
0,1
2-11
12-15
contents
reg.
in memory
n
owhere
a-d
u-z
address
var.
RAT:
AT:
GetReg
:
R2
Instruction:
(1) u:=a-b
Properties:
u, a, b: live
GenCode
:
load R2,a
sub
R2,b
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