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updated for photo-typesetter

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dick
1986-02-04 17:37:41 +00:00
parent d72f604a96
commit 80fd35f736
19 changed files with 3724 additions and 2420 deletions
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20
doc/em/dspace.nr
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@@ -23,7 +23,7 @@ Examples are LOE, LAE and STE.
Part of the global data area is initialized by the
compiler, the
rest is not initialized at all or is initialized
with a value, typically -32768 or 0.
with a value, typically \-32768 or 0.
Part of the initialized global data may be made read-only
if the implementation supports protection.
.P
@@ -47,7 +47,7 @@ addressed with the use of the DCH instruction.
.A
Many instructions have offsets to LB as argument,
for instance LOL, LAL and STL.
The arguments of these instructions range from -1 to some
The arguments of these instructions range from \-1 to some
(negative) minimum
for the access of local storage and from 0 to some (positive)
maximum for parameter access.
@@ -246,7 +246,7 @@ reserved.
The parameters and local storage are accessed by the same instructions.
Negative offsets are used for access to local variables.
The highest byte, that is the byte nearest
to LB, has to be accessed with offset -1.
to LB, has to be accessed with offset \-1.
The pseudoinstruction specifying the entry point of a
procedure, has an argument that specifies the amount of local
storage needed.
@@ -255,7 +255,7 @@ are the only ones that can be accessed with a fixed negative offset.
The initial value of the allocated words is
not defined, but implementations that check for undefined
values will probably initialize them with a
special 'undefined' pattern, typically -32768.
special 'undefined' pattern, typically \-32768.
.A
Fourth, any EM implementation is allowed to reserve a variable size
block beneath the local variables.
@@ -297,7 +297,7 @@ This can be done with the aforementioned ASP instruction.
Each procedure frame is a separate fragment.
Because any fragment may be placed anywhere in memory,
procedure frames need not be contiguous.
.DS
.Dr 47
|===============================|
| actual parameter n-1 |
|-------------------------------|
@@ -305,14 +305,14 @@ procedure frames need not be contiguous.
| . |
| . |
|-------------------------------|
| actual parameter 0 | ( <- AB )
| actual parameter 0 | ( <\- AB )
|===============================|
|===============================|
|///////////////////////////////|
|///// return status block /////|
|///////////////////////////////| <- LB
|///////////////////////////////| <\- LB
|===============================|
| |
| local variables |
@@ -340,11 +340,11 @@ procedure frames need not be contiguous.
| . |
| . |
|-------------------------------|
| parameter 0 | <- SP
| parameter 0 | <\- SP
|===============================|
.Df
Figure 1. A sample procedure frame and parameters.
.DE
.De
.S2 "Heap data area"
The heap area starts empty, with HP
pointing to the low end of it.