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Improved comments on the generated opcodes.h file.

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FossilOrigin-Name: f2a17f1fad08779486e4d50d0d9277c7f87a9558a53af1a68aa5fe2ec30e820e
This commit is contained in:
drh
2021-05-18 12:36:35 +00:00
parent 8ed1da195a
commit e74ca517b4
3 changed files with 13 additions and 12 deletions
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11
tool/mkopcodeh.tcl
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@ -145,7 +145,9 @@ foreach name {OP_Noop OP_Explain OP_Abortable} {
incr nOp
}
# The following are the opcodes that are processed by resolveP2Values()
# The following are the opcodes that receive special processing in the
# resolveP2Values() routine. Update this list whenever new cases are
# added to the pOp->opcode switch within resolveP2Values().
#
set rp2v_ops {
OP_Transaction
@ -157,13 +159,11 @@ set rp2v_ops {
OP_VUpdate
OP_VFilter
OP_Next
OP_NextIfOpen
OP_SorterNext
OP_Prev
OP_PrevIfOpen
}
# Assign small values to opcodes that are processed by resolveP2Values()
# Assign the smallest values to opcodes that are processed by resolveP2Values()
# to make code generation for the switch() statement smaller and faster.
#
set cnt -1
@ -177,6 +177,7 @@ for {set i 0} {$i<$nOp} {incr i} {
set def($cnt) $name
}
}
set mxCase1 $cnt
# Assign the next group of values to JUMP opcodes
#
@ -311,7 +312,7 @@ for {set i 0} {$i<=$max} {incr i} {
}
puts "\175"
puts ""
puts "/* The sqlite3P2Values() routine is able to run faster if it knows"
puts "/* The resolve3P2Values() routine is able to run faster if it knows"
puts "** the value of the largest JUMP opcode. The smaller the maximum"
puts "** JUMP opcode the better, so the mkopcodeh.tcl script that"
puts "** generated this include file strives to group all JUMP opcodes"