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ceriel 1987-03-11 21:47:25 +00:00
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@ -234,7 +234,7 @@ to register variables in the rest of this document.
.PP .PP
The front ends generate messages to the back ends telling them which The front ends generate messages to the back ends telling them which
local variables could go into registers. local variables could go into registers.
The information given is the offset of the local, it's size and type The information given is the offset of the local, its size and type
and a scoring number, roughly the number of times it occurs. and a scoring number, roughly the number of times it occurs.
.PP .PP
The decision which variable to put in which register is taken by the The decision which variable to put in which register is taken by the
@ -578,7 +578,7 @@ that can adjust the time/space tradeoff to all positions
from 100% time to 100% space. from 100% time to 100% space.
.LP .LP
By supplying different code rules in certain situations By supplying different code rules in certain situations
it is possible to get a code generator that can adjust it's it is possible to get a code generator that can adjust its
code to the need of the moment. code to the need of the moment.
This is probably most useful with small machines, This is probably most useful with small machines,
experience has shown that on the larger micro's and mini's experience has shown that on the larger micro's and mini's
@ -1458,7 +1458,7 @@ with exact REG src2-REG
This rule for This rule for
.I sbi .I sbi
has a normal first part, has a normal first part,
and a hand optimized special case as it's second part. and a hand optimized special case as its second part.
.DS .DS
.ta 7.5c .ta 7.5c
pat mli $1==2 pat mli $1==2
@ -1604,7 +1604,7 @@ This rule shows the exchanging of two elements on the fake stack.
Code rules using procedures Code rules using procedures
.PP .PP
To start this section it must be admitted at once that the To start this section it must be admitted at once that the
word procedure is chosen here mainly for it's advertising word procedure is chosen here mainly for its advertising
value. value.
It more resembles a glorified goto but this of course can It more resembles a glorified goto but this of course can
not be admitted in the glossy brochures. not be admitted in the glossy brochures.
@ -2681,7 +2681,7 @@ otherwise the register is marked empty.
.NH 4 .NH 4
DO_INSTR DO_INSTR
.PP .PP
This prints an instruction and it's operands. This prints an instruction and its operands.
Only done on toplevel. Only done on toplevel.
.NH 4 .NH 4
DO_MOVE DO_MOVE