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Linted utils

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Saf 2020-08-30 14:18:52 -07:00
parent 4123bf0b06
commit dbeaf4170a
2 changed files with 68 additions and 67 deletions
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3
.rubocop.yml
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@ -13,6 +13,9 @@ Style/Documentation:
Lint/MissingSuper:
Enabled: false
Style/ParallelAssignment:
Enabled: false
Layout/EmptyLinesAroundAttributeAccessor:
Enabled: true

132
utils/opcode_table_to_yaml.rb
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@ -1,91 +1,89 @@
#!/usr/bin/env ruby
# frozen_string_literal: true
###############################################################################
## http://www.6502.org/tutorials/6502opcodes.html
## This web page has information about each and every 6502 instruction
## Specifically:
##
## - Description of what each of the instructions do
## - Which modes are supported by which instructions, immediate, zero page
## zero page x, and y, absolute, indirect, relative etc.
## - The hex codes each instruction assembles to, in each mode.
## - The lengths in bytes of each instruction, by mode
## - The possibly variable number of cycles each instruction takes.
##
## There are 56 of them, and in my programmer laziness I just wrote this
## script to parse the page into the data structure that you see in
## opcodes.yaml. This really helped in creating the assembler, and
## it had basically everything I needed to know, and sped up writing
## this by huge factor. So, yay to this page, and this script!
##############################################################################
# From http://www.6502.org/tutorials/6502opcodes.html
# This web page has information about each and every 6502 instruction
# Specifically:
#
# - Description of what each of the instructions do
# - Which modes are supported by which instructions, immediate, zero page
# zero page x, and y, absolute, indirect, relative etc.
# - The hex codes each instruction assembles to, in each mode.
# - The lengths in bytes of each instruction, by mode
# - The possibly variable number of cycles each instruction takes.
#
# There are 56 of them, and in my programmer laziness I just wrote this
# script to parse the page into the data structure that you see in
# opcodes.yaml. This really helped in creating the assembler, and
# it had basically everything I needed to know, and sped up writing
# this by huge factor. So, yay to this page, and this script!
require 'yaml'
## Instruction name, and output structure to fill in.
# Instruction name, and output structure to fill in.
name = :adc
output = {name => {}}
output = { name: {} }
## Copy paste the tables from that website into this heredoc:
text =<<-TEXT
Immediate ADC #$44 $69 2 2
Zero Page ADC $44 $65 2 3
Zero Page,X ADC $44,X $75 2 4
Absolute ADC $4400 $6D 3 4
Absolute,X ADC $4400,X $7D 3 4+
Absolute,Y ADC $4400,Y $79 3 4+
Indirect,X ADC ($44,X) $61 2 6
Indirect,Y ADC ($44),Y $71 2 5+
# Copy paste the tables from that website into this heredoc:
text = <<~'TEXT'
Immediate ADC #$44 $69 2 2
Zero Page ADC $44 $65 2 3
Zero Page,X ADC $44,X $75 2 4
Absolute ADC $4400 $6D 3 4
Absolute,X ADC $4400,X $7D 3 4+
Absolute,Y ADC $4400,Y $79 3 4+
Indirect,X ADC ($44,X) $61 2 6
Indirect,Y ADC ($44),Y $71 2 5+
TEXT
## And now iterate over each line to extract the info
# And now iterate over each line to extract the info
lines = text.split(/\n/)
lines.each do |line|
## Grab out the values we care about
# Grab out the values we care about
parts = line.split
cycles, len, hex = parts[-1], parts[-2], parts[-3]
hex = "0x%X" % hex.gsub('$', '').to_i(16)
hex = format('0x%X', hex.gsub('$', '').to_i(16))
match_data = cycles.match(/([0-9]+)(\+?)/)
cycles = match_data[1]
boundary = match_data[2]
hash = {:hex => hex, :len => len, :cycles => cycles, :boundry_add => boundary != ""}
hash = { hex: hex, len: len, cycles: cycles, boundry_add: boundary != '' }
## And now decide which mode the line belongs to, collecting each listed mode
# And now decide which mode the line belongs to, collecting each listed mode
hash = case line
when /^Accumulator/
{:accumulator => hash}
when /^Immediate/
{:immediate => hash}
when /^Zero Page,X/
{:zero_page_x => hash}
when /^Zero Page,Y/
{:zero_page_y => hash}
when /^Zero Page/
{:zero_page => hash}
when /^Absolute,X/
{:absolute_x => hash}
when /^Absolute,Y/
{:absolute_y => hash}
when /^Absolute/
{:absolute => hash}
when /^Indirect,X/
{:indirect_x => hash}
when /^Indirect,Y/
{:indirect_y => hash}
when /^Indirect/
{:indirect => hash}
when /^Implied/
{:implied => hash}
else
{}
end
when /^Accumulator/
{ accumulator: hash }
when /^Immediate/
{ immediate: hash }
when /^Zero Page,X/
{ zero_page_x: hash }
when /^Zero Page,Y/
{ zero_page_y: hash }
when /^Zero Page/
{ zero_page: hash }
when /^Absolute,X/
{ absolute_x: hash }
when /^Absolute,Y/
{ absolute_y: hash }
when /^Absolute/
{ absolute: hash }
when /^Indirect,X/
{ indirect_x: hash }
when /^Indirect,Y/
{ indirect_y: hash }
when /^Indirect/
{ indirect: hash }
when /^Implied/
{ implied: hash }
else
{}
end
output[name].merge!(hash)
end
## Now output some yaml, and I only had to do this about 45 times
## instead of laboriously and mistak-pronely doing it by hand.
# Now output some yaml, and I only had to do this about 45 times
# instead of laboriously and mistak-pronely doing it by hand.
puts YAML.dump(output).gsub("'", '')
## See opcodes.yaml
# See opcodes.yaml