diff --git a/example.s b/example.s
new file mode 100644
index 0000000..946538f
--- /dev/null
+++ b/example.s
@@ -0,0 +1,329 @@
+.inesprg 1
+.ineschr 1
+.inesmap 0
+.inesmir 1
+
+.bank 0
+.org $C000
+RESET:
+sei
+cld
+ldx #$40
+stx $4017
+ldx #$FF
+txs
+inx
+stx $2000
+stx $2001
+stx $4010
+vblankwait1:
+bit $2002
+bpl vblankwait1
+clrmem:
+lda #$00
+sta $0000, x
+sta $0100, x
+sta $0200, x
+sta $0400, x
+sta $0500, x
+sta $0600, x
+sta $0700, x
+lda #$FE
+sta $0300, x
+inx
+bne clrmem
+vblankwait2:
+bit $2002
+bpl vblankwait2
+
+lda $2002
+lda #$3F
+sta $2006
+lda #$00
+sta $2006
+ldx #$00
+LoadPalettesLoop:
+lda PaletteData, x
+sta $2007
+inx
+cpx #$20
+bne LoadPalettesLoop
+LoadSprites:
+ldx #$00
+LoadSpritesLoop:
+lda sprites, x
+sta $0200, x
+inx
+cpx #$10
+bne LoadSpritesLoop
+
+LoadBackgrounds:
+lda $2002
+lda #$20
+sta $2006
+lda #$00
+sta $2006
+ldx #$00
+LoadBackground1:
+lda background1, x
+sta $2007
+inx
+cpx #$00
+bne LoadBackground1
+LoadBackground2:
+lda background2, x
+sta $2007
+inx
+cpx #$00
+bne LoadBackground2
+LoadBackground3:
+lda background3, x
+sta $2007
+inx
+cpx #$00
+bne LoadBackground3
+LoadBackground4:
+lda background4, x
+sta $2007
+inx
+cpx #$00
+bne LoadBackground4
+LoadAttribute:
+lda $2002
+lda #$23
+sta $2006
+lda #$C0
+sta $2006
+ldx #$00
+LoadAttributeLoop:
+lda attribute, x
+sta $2007
+inx
+cpx #$40
+bne LoadAttributeLoop
+
+lda #%10010000
+sta $2000
+lda #%00011110
+sta $2001
+Forever:
+jmp Forever
+NMI:
+
+lda #$00
+sta $2003
+lda #$02
+sta $4014
+
+lda #$01
+sta $4016
+lda #$00
+sta $4016
+ReadA:
+lda $4016
+and #%00000001
+beq ReadADone
+ReadADone:
+ReadB:
+lda $4016
+and #%00000001
+beq ReadBDone
+ReadBDone:
+ReadSel:
+lda $4016
+and #%00000001
+beq ReadSelDone
+ReadSelDone:
+ReadStart:
+lda $4016
+and #%00000001
+beq ReadStartDone
+ReadStartDone:
+ReadUp:
+lda $4016
+and #%00000001
+beq ReadUpDone
+lda $0200
+sec
+sbc #$01
+sta $0200
+lda $0204
+sec
+sbc #$01
+sta $0204
+lda $0208
+sec
+sbc #$01
+sta $0208
+lda $020C
+sec
+sbc #$01
+sta $020C
+ReadUpDone:
+ReadDown:
+lda $4016
+and #%00000001
+beq ReadDownDone
+lda $0200
+clc
+adc #$01
+sta $0200
+lda $0204
+clc
+adc #$01
+sta $0204
+lda $0208
+clc
+adc #$01
+sta $0208
+lda $020C
+clc
+adc #$01
+sta $020C
+ReadDownDone:
+ReadLeft:
+lda $4016
+and #%00000001
+beq ReadLeftDone
+lda $0203
+sec
+sbc #$01
+sta $0203
+lda $0207
+sec
+sbc #$01
+sta $0207
+lda $020B
+sec
+sbc #$01
+sta $020B
+lda $020F
+sec
+sbc #$01
+sta $020F
+ReadLeftDone:
+ReadRight:
+lda $4016
+and #%00000001
+beq ReadRightDone
+lda $0203
+clc
+adc #$01
+sta $0203
+lda $0207
+clc
+adc #$01
+sta $0207
+lda $020B
+clc
+adc #$01
+sta $020B
+lda $020F
+clc
+adc #$01
+sta $020F
+ReadRightDone:
+lda #%10010000
+sta $2000
+lda #%00011110
+sta $2001
+lda #$00
+sta $2005
+sta $2005
+
+rti
+.bank 1
+.org $E000
+
+PaletteData:
+.db $22,$29,$1A,$0F,$22,$36,$17,$0F,$22,$30,$21,$0F,$22,$27,$17,$0F
+.db $0F,$16,$27,$18,$22,$02,$38,$3C,$22,$1C,$15,$14,$22,$02,$38,$3C
+
+sprites:
+.db $80, 112, $0, $80
+.db $80, 113, $0, $88
+.db $88, 114, $0, $80
+.db $88, 115, $0, $88
+
+background1:
+.db $24,$24,$24,$24,$24,$24,$24,$24,$24,$24,$24,$24,$24,$24,$24,$24
+.db $24,$24,$24,$24,$24,$24,$24,$24,$24,$24,$24,$24,$24,$24,$24,$24
+.db $24,$24,$24,$24,$24,$24,$24,$24,$24,$24,$24,$24,$24,$24,$24,$24
+.db $24,$24,$24,$24,$24,$24,$24,$24,$24,$24,$24,$24,$24,$24,$24,$24
+.db $24,$24,$24,$24,$45,$45,$24,$24,$45,$45,$45,$45,$45,$45,$24,$24
+.db $24,$24,$24,$24,$24,$24,$24,$24,$24,$24,$24,$24,$53,$54,$24,$24
+.db $24,$24,$24,$24,$47,$47,$24,$24,$47,$47,$47,$47,$47,$47,$24,$24
+.db $24,$24,$24,$24,$24,$24,$24,$24,$24,$24,$24,$24,$55,$56,$24,$24
+.db $24,$24,$24,$24,$24,$24,$24,$24,$24,$24,$24,$24,$24,$24,$24,$24
+.db $24,$24,$24,$24,$24,$24,$24,$24,$24,$24,$24,$24,$24,$24,$24,$24
+.db $24,$24,$24,$24,$24,$24,$24,$24,$24,$24,$24,$24,$24,$24,$24,$24
+.db $24,$24,$24,$24,$24,$24,$24,$24,$24,$24,$24,$24,$24,$24,$24,$24
+.db $24,$24,$24,$24,$24,$24,$24,$24,$24,$24,$24,$24,$24,$24,$24,$24
+.db $24,$24,$24,$24,$24,$24,$24,$24,$24,$24,$24,$24,$24,$24,$24,$24
+.db $24,$24,$24,$24,$24,$24,$24,$24,$24,$24,$24,$24,$24,$24,$24,$24
+background2:
+.db $24,$24,$24,$24,$24,$24,$24,$24,$24,$24,$24,$24,$24,$24,$24,$24
+.db $24,$24,$24,$24,$24,$24,$24,$24,$24,$24,$24,$24,$24,$24,$24,$24
+.db $24,$24,$24,$24,$24,$24,$24,$24,$24,$24,$24,$24,$24,$24,$24,$24
+.db $24,$24,$24,$24,$24,$24,$24,$24,$24,$24,$24,$24,$24,$24,$24,$24
+.db $24,$24,$24,$24,$45,$45,$24,$24,$45,$45,$45,$45,$45,$45,$24,$24
+.db $24,$24,$24,$24,$24,$24,$24,$24,$24,$24,$24,$24,$53,$54,$24,$24
+.db $24,$24,$24,$24,$47,$47,$24,$24,$47,$47,$47,$47,$47,$47,$24,$24
+.db $24,$24,$24,$24,$24,$24,$24,$24,$24,$24,$24,$24,$55,$56,$24,$24
+.db $24,$24,$24,$24,$24,$24,$24,$24,$24,$24,$24,$24,$24,$24,$24,$24
+.db $24,$24,$24,$24,$24,$24,$24,$24,$24,$24,$24,$24,$24,$24,$24,$24
+.db $24,$24,$24,$24,$24,$24,$24,$24,$24,$24,$24,$24,$24,$24,$24,$24
+.db $24,$24,$24,$24,$24,$24,$24,$24,$24,$24,$24,$24,$24,$24,$24,$24
+.db $24,$24,$24,$24,$24,$24,$24,$24,$24,$24,$24,$24,$24,$24,$24,$24
+.db $24,$24,$24,$24,$24,$24,$24,$24,$24,$24,$24,$24,$24,$24,$24,$24
+.db $24,$24,$24,$24,$24,$24,$24,$24,$24,$24,$24,$24,$24,$24,$24,$24
+background3:
+.db $24,$24,$24,$24,$24,$24,$24,$24,$24,$24,$24,$24,$24,$24,$24,$24
+.db $24,$24,$24,$24,$24,$24,$24,$24,$24,$24,$24,$24,$24,$24,$24,$24
+.db $24,$24,$24,$24,$24,$24,$24,$24,$24,$24,$24,$24,$24,$24,$24,$24
+.db $24,$24,$24,$24,$24,$24,$24,$24,$24,$24,$24,$24,$24,$24,$24,$24
+.db $24,$24,$24,$24,$45,$45,$24,$24,$45,$45,$45,$45,$45,$45,$24,$24
+.db $24,$24,$24,$24,$24,$24,$24,$24,$24,$24,$24,$24,$53,$54,$24,$24
+.db $24,$24,$24,$24,$47,$47,$24,$24,$47,$47,$47,$47,$47,$47,$24,$24
+.db $24,$24,$24,$24,$24,$24,$24,$24,$24,$24,$24,$24,$55,$56,$24,$24
+.db 17,14,21,21,24,36,32,24,27,21,13,36,36,36,36,36
+.db $24,$24,$24,$24,$24,$24,$24,$24,$24,$24,$24,$24,$24,$24,$24,$24
+.db $24,$24,$24,$24,$24,$24,$24,$24,$24,$24,$24,$24,$24,$24,$24,$24
+.db $24,$24,$24,$24,$24,$24,$24,$24,$24,$24,$24,$24,$24,$24,$24,$24
+.db $24,$24,$24,$24,$24,$24,$24,$24,$24,$24,$24,$24,$24,$24,$24,$24
+.db $24,$24,$24,$24,$24,$24,$24,$24,$24,$24,$24,$24,$24,$24,$24,$24
+.db $24,$24,$24,$24,$24,$24,$24,$24,$24,$24,$24,$24,$24,$24,$24,$24
+background4:
+.db $24,$24,$24,$24,$24,$24,$24,$24,$24,$24,$24,$24,$24,$24,$24,$24
+.db $24,$24,$24,$24,$24,$24,$24,$24,$24,$24,$24,$24,$24,$24,$24,$24
+.db $24,$24,$24,$24,$24,$24,$24,$24,$24,$24,$24,$24,$24,$24,$24,$24
+.db $24,$24,$24,$24,$24,$24,$24,$24,$24,$24,$24,$24,$24,$24,$24,$24
+.db $24,$24,$24,$24,$45,$45,$24,$24,$45,$45,$45,$45,$45,$45,$24,$24
+.db $24,$24,$24,$24,$24,$24,$24,$24,$24,$24,$24,$24,$53,$54,$24,$24
+.db $24,$24,$24,$24,$47,$47,$24,$24,$47,$47,$47,$47,$47,$47,$24,$24
+.db $24,$24,$24,$24,$24,$24,$24,$24,$24,$24,$24,$24,$55,$56,$24,$24
+.db $24,$24,$24,$24,$24,$24,$24,$24,$24,$24,$24,$24,$24,$24,$24,$24
+.db $24,$24,$24,$24,$24,$24,$24,$24,$24,$24,$24,$24,$24,$24,$24,$24
+.db $24,$24,$24,$24,$24,$24,$24,$24,$24,$24,$24,$24,$24,$24,$24,$24
+.db $24,$24,$24,$24,$24,$24,$24,$24,$24,$24,$24,$24,$24,$24,$24,$24
+.db $24,$24,$24,$24,$24,$24,$24,$24,$24,$24,$24,$24,$24,$24,$24,$24
+.db $24,$24,$24,$24,$24,$24,$24,$24,$24,$24,$24,$24,$24,$24,$24,$24
+.db $24,$24,$24,$24,$24,$24,$24,$24,$24,$24,$24,$24,$24,$24,$24,$24
+attribute:
+.db %00010001, %00010001, %01010101, %00010001, %00010001, %00010001, %00010001, %01110111
+.db %00010001, %00010001, %01010101, %00010001, %00010001, %00010001, %00010001, %01110111
+.db %00010001, %00010001, %01010101, %00010001, %00010001, %00010001, %00010001, %01110111
+.db %00010001, %00010001, %01010101, %00010001, %00010001, %00010001, %00010001, %01110111
+.db %00010001, %00010001, %01010101, %00010001, %00010001, %00010001, %00010001, %01110111
+.db %00010001, %00010001, %01010101, %00010001, %00010001, %00010001, %00010001, %01110111
+.db %00010001, %00010001, %01010101, %00010001, %00010001, %00010001, %00010001, %01110111
+.db %00010001, %00010001, %01010101, %00010001, %00010001, %00010001, %00010001, %01110111
+
+.org $FFFA
+
+.dw NMI
+.dw RESET
+.dw 0
+.bank 2
+.org $0000
+.incbin "mario.chr"
diff --git a/index.js b/index.js
new file mode 100644
index 0000000..dfc449f
--- /dev/null
+++ b/index.js
@@ -0,0 +1,23 @@
+const mona = require('mona')
+
+const directive = require('./parsers/directive')
+const instruction = require('./parsers/instruction')
+const label = require('./parsers/label')
+
+function assembler (input) {
+  return mona.parse(
+    mona.collect(
+      mona.or(
+        directive(),
+        instruction(),
+        label(),
+        mona.eol()
+      )
+    ),
+    input
+  )
+}
+
+module.exports = assembler
+// const result = mona.parse(mona.collect(assembler()), c)
+// console.log(result)
diff --git a/package.json b/package.json
new file mode 100644
index 0000000..61c84b7
--- /dev/null
+++ b/package.json
@@ -0,0 +1,33 @@
+{
+  "name": "parser-6502",
+  "version": "1.0.0",
+  "description": "Parser for 6502 assembler.",
+  "main": "index.js",
+  "dependencies": {
+    "mona": "^0.9.1"
+  },
+  "devDependencies": {
+    "standard": "^8.1.0",
+    "tap": "^7.1.2"
+  },
+  "scripts": {
+    "test": "tap test/*.js --cov && standard"
+  },
+  "repository": {
+    "type": "git",
+    "url": "git+https://github.com/emkay/parser-6502.git"
+  },
+  "keywords": [
+    "parser",
+    "6502",
+    "nesly",
+    "nes",
+    "assembler"
+  ],
+  "author": "Michael Matuzak",
+  "license": "MIT",
+  "bugs": {
+    "url": "https://github.com/emkay/parser-6502/issues"
+  },
+  "homepage": "https://github.com/emkay/parser-6502#readme"
+}
diff --git a/parsers/directive.js b/parsers/directive.js
new file mode 100644
index 0000000..851d6fc
--- /dev/null
+++ b/parsers/directive.js
@@ -0,0 +1,36 @@
+const mona = require('mona')
+const parameters = require('./parameters')
+
+function directiveName () {
+  return mona.oneOf([
+    '.inesprg',
+    '.ineschr',
+    '.inesmap',
+    '.inesmir',
+    '.bank',
+    '.org',
+    '.db',
+    '.byte',
+    '.dw',
+    '.word',
+    '.incbin',
+    '.rsset',
+    '.rs'
+  ])
+}
+
+// <directive> ::= <directive-name> [<spaces> <parameter>]*
+function directive () {
+  return mona.sequence((s) => {
+    const d = s(directiveName())
+    const args = s(mona.map((a) => (a[0]), parameters()))
+    // const nl = s(mona.eol())
+
+    return mona.value({
+      directive: d,
+      args: args
+    })
+  })
+}
+
+module.exports = directive
diff --git a/parsers/instruction.js b/parsers/instruction.js
new file mode 100644
index 0000000..5fc7891
--- /dev/null
+++ b/parsers/instruction.js
@@ -0,0 +1,37 @@
+const mona = require('mona')
+const parameters = require('./parameters')
+
+const instructions = [
+  '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'
+]
+
+function instructionName () {
+  return mona.oneOf(instructions)
+}
+
+function instruction () {
+  return mona.sequence((s) => {
+    const i = s(instructionName())
+    const args = s(mona.map((a) => (a[0]), parameters()))
+    // const nl = s(mona.eol())
+    return mona.value({
+      instruction: i,
+      args: args
+    })
+  })
+}
+
+module.exports = instruction
diff --git a/parsers/label.js b/parsers/label.js
new file mode 100644
index 0000000..0aadfd2
--- /dev/null
+++ b/parsers/label.js
@@ -0,0 +1,15 @@
+const mona = require('mona')
+
+function label () {
+  return mona.sequence((s) => {
+    const label = s(mona.text(mona.alphanum()))
+    const end = s(mona.string(':'))
+    const nl = s(mona.eol())
+
+    return mona.value({
+      label: `${label}${end}`
+    })
+  })
+}
+
+module.exports = label
diff --git a/parsers/parameters.js b/parsers/parameters.js
new file mode 100644
index 0000000..624c79f
--- /dev/null
+++ b/parsers/parameters.js
@@ -0,0 +1,59 @@
+const mona = require('mona')
+
+function quotedChar () {
+  return mona.or(mona.noneOf('"'),
+                 mona.and(mona.string('""'),
+                          mona.value('"')))
+}
+
+// pulled out, because in the future, this might be more detailed!
+// <parameter> ::= <alphanum>+
+function parameter () {
+  const param = () => {
+    return mona.or(
+      mona.join(
+        mona.string('$'),
+        mona.alphanum()
+      ),
+      mona.join(
+        mona.string('#'),
+        mona.string('$'),
+        mona.alphanum()
+      ),
+      mona.join(
+        mona.string('#'),
+        mona.string('%'),
+        mona.alphanum()
+      ),
+      mona.join(
+        mona.string('%'),
+        mona.alphanum()
+      ),
+      mona.between(
+        mona.string('"'),
+        mona.string('"'),
+        mona.text(quotedChar())
+      ),
+      mona.alphanum()
+    )
+  }
+
+  return mona.text(param(), {min: 1})
+}
+
+function parameters () {
+  return mona.collect(
+    mona.and(
+      mona.spaces(),
+      mona.split(
+        parameter(),
+        mona.or(
+          mona.and(mona.string(','), mona.spaces()),
+          mona.string(',')
+        )
+      )
+    )
+  )
+}
+
+module.exports = parameters
diff --git a/test/assembler.js b/test/assembler.js
new file mode 100644
index 0000000..5657efd
--- /dev/null
+++ b/test/assembler.js
@@ -0,0 +1,18 @@
+const tap = require('tap')
+const parser = require('..')
+
+tap.test('should parse the basics', (t) => {
+  t.plan(1)
+  const input = '.org $C000\nRESET:\n'
+  t.deepEqual(parser(input), [
+    {
+      directive: '.org',
+      args: [
+        '$,C000'
+      ]
+    },
+    {
+      label: 'RESET:'
+    }
+  ])
+})
diff --git a/test/directive.js b/test/directive.js
new file mode 100644
index 0000000..61be3a0
--- /dev/null
+++ b/test/directive.js
@@ -0,0 +1,86 @@
+const tap = require('tap')
+const mona = require('mona')
+const directiveParser = require('../parsers/directive')
+
+tap.test('will parse a directive', (t) => {
+  t.plan(1)
+  t.deepEqual(mona.parse(directiveParser(), '.inesprg 1'), {
+    args: [
+      '1'
+    ],
+    directive: '.inesprg'
+  })
+})
+
+tap.test('will parse a directive with direct address', (t) => {
+  t.plan(1)
+  t.deepEqual(mona.parse(directiveParser(), '.inesprg $0000'), {
+    args: [
+      '$,0000'
+    ],
+    directive: '.inesprg'
+  })
+})
+
+tap.test('will parse a directive with hex arg', (t) => {
+  t.plan(1)
+  t.deepEqual(mona.parse(directiveParser(), '.inesprg #$FE'), {
+    args: [
+      '#,$,FE'
+    ],
+    directive: '.inesprg'
+  })
+})
+
+tap.test('will parse a directive with binary arg', (t) => {
+  t.plan(2)
+  t.deepEqual(mona.parse(directiveParser(), '.db %00010001'), {
+    args: [
+      '%,00010001'
+    ],
+    directive: '.db'
+  })
+
+  t.deepEqual(mona.parse(directiveParser(), '.db #%00010001'), {
+    args: [
+      '#,%,00010001'
+    ],
+    directive: '.db'
+  })
+})
+
+tap.test('will parse a directive with multiple args', (t) => {
+  t.plan(1)
+  t.deepEqual(mona.parse(directiveParser(), '.db %00010001,%00010001,%00010001,%00010001'), {
+    args: [
+      '%,00010001',
+      '%,00010001',
+      '%,00010001',
+      '%,00010001'
+    ],
+    directive: '.db'
+  })
+})
+
+tap.test('will parse a directive with multiple args with spaces between them', (t) => {
+  t.plan(1)
+  t.deepEqual(mona.parse(directiveParser(), '.db %00010001, %00010001, %00010001, %00010001'), {
+    args: [
+      '%,00010001',
+      '%,00010001',
+      '%,00010001',
+      '%,00010001'
+    ],
+    directive: '.db'
+  })
+})
+
+tap.test('will parse a directive with string arg', (t) => {
+  t.plan(1)
+  t.deepEqual(mona.parse(directiveParser(), '.incbin "mario.chr"'), {
+    args: [
+      'mario.chr'
+    ],
+    directive: '.incbin'
+  })
+})
diff --git a/test/instruction.js b/test/instruction.js
new file mode 100644
index 0000000..00f504b
--- /dev/null
+++ b/test/instruction.js
@@ -0,0 +1,27 @@
+const tap = require('tap')
+const mona = require('mona')
+const instructionParser = require('../parsers/instruction')
+
+tap.test('will parse an instruction', (t) => {
+  t.plan(1)
+  t.deepEqual(mona.parse(instructionParser(), 'sei'), {
+    args: null,
+    instruction: 'sei'
+  })
+})
+
+tap.test('will parse an instruction with args', (t) => {
+  t.plan(1)
+  t.deepEqual(mona.parse(instructionParser(), 'stx $2000'), {
+    args: ['$,2000'],
+    instruction: 'stx'
+  })
+})
+
+tap.test('will parse an instruction with multiple args', (t) => {
+  t.plan(1)
+  t.deepEqual(mona.parse(instructionParser(), 'lda background3, x'), {
+    args: ['background3', 'x'],
+    instruction: 'lda'
+  })
+})
diff --git a/test/label.js b/test/label.js
new file mode 100644
index 0000000..5c00495
--- /dev/null
+++ b/test/label.js
@@ -0,0 +1,10 @@
+const tap = require('tap')
+const mona = require('mona')
+const labelParser = require('../parsers/label')
+
+tap.test('should parse a label', (t) => {
+  t.plan(2)
+  t.deepEqual(mona.parse(labelParser(), 'SOMETHING:'), {
+    label: 'SOMETHING:'
+  })
+})