%YAML 1.2
---
name: NinjaForce Assembler
file_extensions: [s]
scope: source.asm.65816.ninjaforce

variables:
  ws: '[ \t]+'
  ident: '[A-Za-z_][A-Za-z0-9_]*'

contexts:
  main:
    - include: label


  label:

    - match: '{{ws}}'
      push: opcode

    - match: '^({{ident}}){{ws}}((?i)MAC)\b'
      captures:
        1: entity.name.macro
        2: keyword.directive
      push: operand  

    - match: '^]?{{ident}}'
      scope: entity.name.label

    - match: ^[*]|;
      push:
        - meta_scope: comment.line
        - match: \n
          pop: true

  opcode:
    - match: '{{ws}}'
      set: operand
    - include: comment
    - include: mnemonics-6502
    - include: mnemonics-65c02
    - include: mnemonics-65816
    - include: mnemonics-65816-long
    - include: mnemonics-65816-alt

    - match: \b(?i:IMP|INS)\b
      scope: keyword.control.import
      set: operand-string
    - match: \b(?i:ORG|EQU|COD|TYP|LNK|SHT|LNG|M08|M16|X08|X16|LST|LOP)\b
      scope: keyword.directive
    - match: =
      scope: keyword.directive
    - match: \b(?i:ASC|STR)\b
      scope: keyword.directive.data
      set: operand-string
    - match: \b(?i:DLW|DW|DFB)\b
      scope: keyword.directive.data

    - match: \b(?i:HEX)\b
      scope: keyword.directive.data
      set: operand-hex

    - match: \b(?i:MSB)\b
      scope: keyword.directive
      set: operand-on-off

    - match: \^\^\^|<<<
      scope: keyword.directive



  operand:
    - include: comment
    - include: numbers
    - include: strings
    - include: macro-parm 

  operand-string:
    - include: comment
    - include: strings

    - match: \S
      scope: invalid.illegal.operand

  operand-hex:
    - include: comment
    - match: '[0-9A-Fa-f]{1,2}'
      scope: constant.numeric.hex
    - match: '[^ \t,]'
      scope: invalid.illegal.operand

  operand-on-off:
    - include: comment
    - match: \b(?i:ON|OFF)\b
      scope: constant.language
    - match: \S
      scope: invalid.illegal.operand


  comment:
    - match: ;[^\n]*
      scope: comment.line.partial
    - match: \n
      pop: true

  mnemonics-6502:
    - match: \b(?i:ADC|AND|ASL|BCC|BCS|BEQ|BIT|BMI|BNE|BPL|BRK|BVC|BVS|CLC|CLD|CLI|CLV|CMP|CPX|CPY|DEC|DEX|DEY|EOR|INC|INX|INY|JMP|JSR|LDA|LDX|LDY|LSR|NOP|ORA|PHA|PHP|PLA|PLP|ROL|ROR|RTI|RTS|SBC|SEC|SED|SEI|STA|STX|STY|TAX|TAY|TSX|TXA|TXS|TYA)\b
      scope: keyword.mnemonic.6502

  mnemonics-65c02:
    - match: \b(?i:BRA|PHX|PHY|PLX|PLY|STP|STZ|TRB|TSB|WAI)\b
      scope: keyword.mnemonic.65c02

  mnemonics-65816:
    - match: \b(?i:BRL|COP|JML|JSL|MVN|MVP|PEA|PEI|PER|PHB|PHD|PHK|PLB|PLD|REP|RTL|SEP|TCD|TCS|TDC|TSC|TXY|TYX|WDM|XBA|XCE)\b
      scope: keyword.mnemonic.65816

  mnemonics-65816-long:
    - match: \b(?i:ADCL|ANDL|CMPL|EORL|LDAL|ORAL|SBCL|STAL)\b
      scope: keyword.mnemonic.65816.long

  mnemonics-65816-alt:
    - match: \b(?i:BLT|BGE)\b
      scope: keyword.mnemonic.65816.alt


  numbers:
    - match: \d+
      scope: constant.numeric
    - match: \$[0-9a-fA-F]+
      scope: constant.numeric.hex
    - match: \%[01]+
      scope: constant.numeric.binary

  macro-parm:
    - match: '&\d'
      scope: variable.other

  strings:
    - match: '"'
      scope: punctuation.definition.string.begin
      push:
        - match: '"'
          scope: punctuation.definition.string.end
          pop: true
        - match: \n
          scope: invalid.illegal.newline.asm
          pop: true
        - match: .
          scope: string.quoted.double