GetReg
and
GenCode
: Example 3/10
reserved
u
free
reserved
0,1
2
3-11
12-15
contents
reg.
in memory
2
nowhere
a-d
u
v-z
address
var.
RAT:
AT:
GetReg
:
R3
Instruction:
(2) v:=c-a
Properties:
v, c, a: live
GenCode
:
load R3,c
sub
R3,a
32/43