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Adapted for PAREN_OPEN and PAREN_CLOSE, and better adaption for type-setter

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ceriel 1988-03-14 16:37:00 +00:00
parent 63a89b7080
commit 539e01b5bc
1 changed files with 15 additions and 8 deletions
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doc/top/top.n
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@ -1,6 +1,9 @@
.ND .ND
.tr ~ .tr ~
.ds <.
.ds <,
.ds >. . .ds >. .
.ds >, ,
.ds [. [ .ds [. [
.ds .] ] .ds .] ]
.TL .TL
@ -27,7 +30,6 @@ write such a table for a new machine.
It also discusses the implementation of the It also discusses the implementation of the
Target Optimizer and its generator. Target Optimizer and its generator.
.AE .AE
.bp
.NH 1 .NH 1
Introduction Introduction
.PP .PP
@ -106,7 +108,6 @@ algorithm and to the definition of the table format.
Chapters 3 and 4 discuss the implementation of the target optimizer Chapters 3 and 4 discuss the implementation of the target optimizer
and the target optimizer generator. and the target optimizer generator.
Appendix A gives full information for writing a description table. Appendix A gives full information for writing a description table.
.bp
.NH 1 .NH 1
Global structure of the target optimizer Global structure of the target optimizer
.PP .PP
@ -463,7 +464,6 @@ The keyword REST contains the mnemonic of the first instruction of
the rest of the input. the rest of the input.
If this instruction uses the carry-bit (e.g. an adc, subc, bhis) If this instruction uses the carry-bit (e.g. an adc, subc, bhis)
the transformation is not allowed. the transformation is not allowed.
.bp
.NH 1 .NH 1
Implementation of the target optimizer Implementation of the target optimizer
.PP .PP
@ -650,7 +650,6 @@ its current value (a string).
The restrictions on variables and the constraints are stored The restrictions on variables and the constraints are stored
in a switch-statement, in a switch-statement,
indexed by variable number and entry number respectively. indexed by variable number and entry number respectively.
.bp
.NH 1 .NH 1
Implementation of the target optimizer generator Implementation of the target optimizer generator
.PP .PP
@ -696,6 +695,12 @@ Topgen maintains two symbol tables, one for variable names and one
for tunable parameters. for tunable parameters.
The symbol tables are organized as binary trees. The symbol tables are organized as binary trees.
.bp .bp
.NH 1
References
.[
$LIST$
.]
.bp
.SH .SH
Appendix A Appendix A
.PP .PP
@ -751,6 +756,8 @@ MAXOPLEN 25
MAX_OPC_LEN 10 MAX_OPC_LEN 10
MAXVARLEN 25 MAXVARLEN 25
MAXLINELEN 100 MAXLINELEN 100
PAREN_OPEN not defined
PAREN_CLOSE not defined
.TE .TE
.ce 1 .ce 1
table 1: parameter names and defaults table 1: parameter names and defaults
@ -774,6 +781,10 @@ As variables may be set by user routines (see "bitw" example for
the Vax) the table-writer must have access to this length and the Vax) the table-writer must have access to this length and
must be able to change it. must be able to change it.
MAXLINELEN denotes the maximum length of a line of assembly code. MAXLINELEN denotes the maximum length of a line of assembly code.
PAREN_OPEN and PAREN_CLOSE must be used when the operand separator can also
occur within operands, between parentheses of some kind. In this case,
PAREN_OPEN must be set to a string containing the opening parentheses, and
PAREN_CLOSE must be set to a string containing the closing parentheses.
.PP .PP
If a line of assembly code violates any of the assumptions or If a line of assembly code violates any of the assumptions or
exceeds some limit, exceeds some limit,
@ -856,7 +867,3 @@ user_routines -> anything .
.ft R .ft R
.DE .DE
The remainder of the table consists of user-defined subroutines. The remainder of the table consists of user-defined subroutines.
.bp
.[
$LIST$
.]