From 481c4ff5ba6ca301229160e7d4b8de40dec20288 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Daniel=20Kn=C3=BCttel?= <daniel.knuettel@daknuett.eu>
Date: Tue, 9 Oct 2018 11:43:27 +0200
Subject: [PATCH] added language and bytecode definition

---
 bytecode.pdf | 244 ++++++++++++++
 bytecode.rst |  46 +++
 language.pdf | 881 +++++++++++++++++++++++++++++++++++++++++++++++++++
 language.rst | 180 +++++++++++
 4 files changed, 1351 insertions(+)
 create mode 100644 bytecode.pdf
 create mode 100644 bytecode.rst
 create mode 100644 language.pdf
 create mode 100644 language.rst

diff --git a/bytecode.pdf b/bytecode.pdf
new file mode 100644
index 0000000..bdd4dda
--- /dev/null
+++ b/bytecode.pdf
@@ -0,0 +1,244 @@
+%PDF-1.4
+%“Œ‹ž ReportLab Generated PDF document http://www.reportlab.com
+1 0 obj
+<< /F1 2 0 R /F2 3 0 R /F3 10 0 R >>
+endobj
+2 0 obj
+<< /BaseFont /Helvetica /Encoding /WinAnsiEncoding /Name /F1 /Subtype /Type1 /Type /Font >>
+endobj
+3 0 obj
+<< /BaseFont /Helvetica-Bold /Encoding /WinAnsiEncoding /Name /F2 /Subtype /Type1 /Type /Font >>
+endobj
+4 0 obj
+<< /Border [ 0 0 0 ] /Contents () /Dest [ 13 0 R /XYZ 62.69291 636.0236 0 ] /Rect [ 62.69291 687.0236 178.2829 699.0236 ] /Subtype /Link /Type /Annot >>
+endobj
+5 0 obj
+<< /Border [ 0 0 0 ] /Contents () /Dest [ 13 0 R /XYZ 62.69291 636.0236 0 ] /Rect [ 527.0227 687.7736 532.5827 699.7736 ] /Subtype /Link /Type /Annot >>
+endobj
+6 0 obj
+<< /Border [ 0 0 0 ] /Contents () /Dest [ 13 0 R /XYZ 62.69291 525.0236 0 ] /Rect [ 62.69291 669.0236 197.7229 681.0236 ] /Subtype /Link /Type /Annot >>
+endobj
+7 0 obj
+<< /Border [ 0 0 0 ] /Contents () /Dest [ 13 0 R /XYZ 62.69291 525.0236 0 ] /Rect [ 527.0227 669.7736 532.5827 681.7736 ] /Subtype /Link /Type /Annot >>
+endobj
+8 0 obj
+<< /Border [ 0 0 0 ] /Contents () /Dest [ 13 0 R /XYZ 62.69291 414.0236 0 ] /Rect [ 62.69291 651.0236 213.8229 663.0236 ] /Subtype /Link /Type /Annot >>
+endobj
+9 0 obj
+<< /Border [ 0 0 0 ] /Contents () /Dest [ 13 0 R /XYZ 62.69291 414.0236 0 ] /Rect [ 527.0227 651.7736 532.5827 663.7736 ] /Subtype /Link /Type /Annot >>
+endobj
+10 0 obj
+<< /BaseFont /Courier /Encoding /WinAnsiEncoding /Name /F3 /Subtype /Type1 /Type /Font >>
+endobj
+11 0 obj
+<< /Border [ 0 0 0 ] /Contents () /Dest [ 13 0 R /XYZ 62.69291 528.5236 0 ] /Rect [ 515.3527 333.0236 532.1177 345.0236 ] /Subtype /Link /Type /Annot >>
+endobj
+12 0 obj
+<< /Border [ 0 0 0 ] /Contents () /Dest [ 13 0 R /XYZ 62.69291 528.5236 0 ] /Rect [ 62.69291 321.0236 168.2829 333.0236 ] /Subtype /Link /Type /Annot >>
+endobj
+13 0 obj
+<< /Annots [ 4 0 R 5 0 R 6 0 R 7 0 R 8 0 R 9 0 R 11 0 R 12 0 R ] /Contents 21 0 R /MediaBox [ 0 0 595.2756 841.8898 ] /Parent 20 0 R /Resources << /Font 1 0 R /ProcSet [ /PDF /Text /ImageB /ImageC /ImageI ] >> /Rotate 0 
+  /Trans <<  >> /Type /Page >>
+endobj
+14 0 obj
+<< /Outlines 16 0 R /PageLabels 22 0 R /PageMode /UseNone /Pages 20 0 R /Type /Catalog >>
+endobj
+15 0 obj
+<< /Author () /CreationDate (D:20181006214730+00'00') /Creator (\(unspecified\)) /Keywords () /ModDate (D:20181006214730+00'00') /Producer (ReportLab PDF Library - www.reportlab.com) 
+  /Subject (\(unspecified\)) /Title (BCI Bytecode) /Trapped /False >>
+endobj
+16 0 obj
+<< /Count 3 /First 17 0 R /Last 19 0 R /Type /Outlines >>
+endobj
+17 0 obj
+<< /Dest [ 13 0 R /XYZ 62.69291 636.0236 0 ] /Next 18 0 R /Parent 16 0 R /Title (Assembly and Bytecode) >>
+endobj
+18 0 obj
+<< /Dest [ 13 0 R /XYZ 62.69291 525.0236 0 ] /Next 19 0 R /Parent 16 0 R /Prev 17 0 R /Title (The Dynamic Instruction Set) >>
+endobj
+19 0 obj
+<< /Dest [ 13 0 R /XYZ 62.69291 414.0236 0 ] /Parent 16 0 R /Prev 18 0 R /Title (Byte Code Interpreter Definition) >>
+endobj
+20 0 obj
+<< /Count 1 /Kids [ 13 0 R ] /Type /Pages >>
+endobj
+21 0 obj
+<< /Length 3790 >>
+stream
+1 0 0 1 0 0 cm  BT /F1 12 Tf 14.4 TL ET
+q
+1 0 0 1 62.69291 741.0236 cm
+q
+0 0 0 rg
+BT 1 0 0 1 0 4 Tm /F2 20 Tf 24 TL 169.9349 0 Td (BCI Bytecode) Tj T* -169.9349 0 Td ET
+Q
+Q
+q
+1 0 0 1 62.69291 708.0236 cm
+q
+BT 1 0 0 1 0 3.5 Tm 21 TL /F2 17.5 Tf 0 0 0 rg (Contents) Tj T* ET
+Q
+Q
+q
+1 0 0 1 62.69291 648.0236 cm
+0 0 0 rg
+BT /F1 10 Tf 12 TL ET
+q
+1 0 0 1 0 39 cm
+q
+BT 1 0 0 1 0 2 Tm 12 TL /F2 10 Tf 0 0 .501961 rg (Assembly and Bytecode) Tj T* ET
+Q
+Q
+q
+1 0 0 1 397.8898 39 cm
+q
+0 0 .501961 rg
+0 0 .501961 RG
+BT 1 0 0 1 0 2 Tm /F2 10 Tf 12 TL 66.44 0 Td (1) Tj T* -66.44 0 Td ET
+Q
+Q
+q
+1 0 0 1 0 21 cm
+q
+BT 1 0 0 1 0 2 Tm 12 TL /F2 10 Tf 0 0 .501961 rg (The Dynamic Instruction Set) Tj T* ET
+Q
+Q
+q
+1 0 0 1 397.8898 21 cm
+q
+0 0 .501961 rg
+0 0 .501961 RG
+BT 1 0 0 1 0 2 Tm /F2 10 Tf 12 TL 66.44 0 Td (1) Tj T* -66.44 0 Td ET
+Q
+Q
+q
+1 0 0 1 0 3 cm
+q
+BT 1 0 0 1 0 2 Tm 12 TL /F2 10 Tf 0 0 .501961 rg (Byte Code Interpreter Definition) Tj T* ET
+Q
+Q
+q
+1 0 0 1 397.8898 3 cm
+q
+0 0 .501961 rg
+0 0 .501961 RG
+BT 1 0 0 1 0 2 Tm /F2 10 Tf 12 TL 66.44 0 Td (1) Tj T* -66.44 0 Td ET
+Q
+Q
+q
+Q
+Q
+q
+1 0 0 1 62.69291 615.0236 cm
+q
+BT 1 0 0 1 0 3.5 Tm 21 TL /F2 17.5 Tf 0 0 0 rg (Assembly and Bytecode) Tj T* ET
+Q
+Q
+q
+1 0 0 1 62.69291 585.0236 cm
+q
+BT 1 0 0 1 0 14 Tm 3.309982 Tw 12 TL /F1 10 Tf 0 0 0 rg (Unlike machine code \(and other bytecode\) BCI bytecode has dynamic opcodes. This means that) Tj T* 0 Tw (bytecode is ) Tj /F2 10 Tf (not ) Tj /F1 10 Tf (necessarily portable.) Tj T* ET
+Q
+Q
+q
+1 0 0 1 62.69291 567.0236 cm
+q
+0 0 0 rg
+BT 1 0 0 1 0 2 Tm /F1 10 Tf 12 TL (This makes sense since the BCI instruction set can be extended for applications.) Tj T* ET
+Q
+Q
+q
+1 0 0 1 62.69291 537.0236 cm
+q
+0 0 0 rg
+BT 1 0 0 1 0 14 Tm /F1 10 Tf 12 TL .742619 Tw (If one wants to share code that should run on any BCI it should be shared as assembly. The assembler) Tj T* 0 Tw (will then use the local interpreter definition and generate suiting bytecode.) Tj T* ET
+Q
+Q
+q
+1 0 0 1 62.69291 504.0236 cm
+q
+BT 1 0 0 1 0 3.5 Tm 21 TL /F2 17.5 Tf 0 0 0 rg (The Dynamic Instruction Set) Tj T* ET
+Q
+Q
+q
+1 0 0 1 62.69291 474.0236 cm
+q
+0 0 0 rg
+BT 1 0 0 1 0 14 Tm /F1 10 Tf 12 TL 1.093876 Tw (The BCI comes with a set of prepared instructions. These are complete and provide a way to do basic) Tj T* 0 Tw (operations like routines, loops and branching.) Tj T* ET
+Q
+Q
+q
+1 0 0 1 62.69291 444.0236 cm
+q
+BT 1 0 0 1 0 14 Tm .743672 Tw 12 TL /F1 10 Tf 0 0 0 rg (The methods are organized in a binary tree internally. To build the tree in a comfortable way there is an) Tj T* 0 Tw (autoinserter that can insert up to ) Tj /F3 10 Tf 0 0 0 rg (1023 ) Tj /F1 10 Tf 0 0 0 rg (methods into the tree.) Tj T* ET
+Q
+Q
+q
+1 0 0 1 62.69291 426.0236 cm
+q
+0 0 0 rg
+BT 1 0 0 1 0 2 Tm /F1 10 Tf 12 TL (The autoinserter creates the opcode basing on the order of the method that he inserts.) Tj T* ET
+Q
+Q
+q
+1 0 0 1 62.69291 393.0236 cm
+q
+BT 1 0 0 1 0 3.5 Tm 21 TL /F2 17.5 Tf 0 0 0 rg (Byte Code Interpreter Definition) Tj T* ET
+Q
+Q
+q
+1 0 0 1 62.69291 351.0236 cm
+q
+0 0 0 rg
+BT 1 0 0 1 0 26 Tm /F1 10 Tf 12 TL 1.843555 Tw (A Bytecode Interpreter Definition consists of two mayor parts: The memory definition that defines the) Tj T* 0 Tw 1.896098 Tw (number of data registers \(up to 63\), the number of memory words \(up to 65535\) and the number of) Tj T* 0 Tw (program memory words \(up to 65535\).) Tj T* ET
+Q
+Q
+q
+1 0 0 1 62.69291 321.0236 cm
+q
+BT 1 0 0 1 0 14 Tm .464985 Tw 12 TL /F1 10 Tf 0 0 0 rg (The second part defines the commands. The definition contains bot the order of the commands \(see ) Tj 0 0 .501961 rg (The) Tj T* 0 Tw (Dynamic Instruction Set) Tj 0 0 0 rg (\) and the required arguments.) Tj T* ET
+Q
+Q
+ 
+endstream
+endobj
+22 0 obj
+<< /Nums [ 0 23 0 R ] >>
+endobj
+23 0 obj
+<< /S /D /St 1 >>
+endobj
+xref
+0 24
+0000000000 65535 f
+0000000075 00000 n
+0000000130 00000 n
+0000000240 00000 n
+0000000355 00000 n
+0000000526 00000 n
+0000000697 00000 n
+0000000868 00000 n
+0000001039 00000 n
+0000001210 00000 n
+0000001381 00000 n
+0000001490 00000 n
+0000001662 00000 n
+0000001834 00000 n
+0000002106 00000 n
+0000002215 00000 n
+0000002489 00000 n
+0000002566 00000 n
+0000002692 00000 n
+0000002837 00000 n
+0000002974 00000 n
+0000003038 00000 n
+0000006885 00000 n
+0000006929 00000 n
+trailer
+<< /ID 
+ % ReportLab generated PDF document -- digest (http://www.reportlab.com)
+ [(\003\236V\37247z\240'\2312!\276\204\362\214) (\003\236V\37247z\240'\2312!\276\204\362\214)]
+ /Info 15 0 R /Root 14 0 R /Size 24 >>
+startxref
+6966
+%%EOF
diff --git a/bytecode.rst b/bytecode.rst
new file mode 100644
index 0000000..ea2f634
--- /dev/null
+++ b/bytecode.rst
@@ -0,0 +1,46 @@
+BCI Bytecode 
+*************
+
+.. contents::
+
+Assembly and Bytecode
+=====================
+
+Unlike machine code (and other bytecode) BCI bytecode has
+dynamic opcodes. This means that bytecode is **not**
+necessarily portable. 
+
+This makes sense since the BCI instruction set can be
+extended for applications.
+
+If one wants to share code that should run on any BCI it
+should be shared as assembly. The assembler will then use
+the local interpreter definition and generate suiting
+bytecode.
+
+The Dynamic Instruction Set
+===========================
+
+The BCI comes with a set of prepared instructions. These are
+complete and provide a way to do basic operations like
+routines, loops and branching.
+
+The methods are organized in a binary tree internally. To
+build the tree in a comfortable way there is an autoinserter
+that can insert up to ``1023`` methods into the tree.
+
+The autoinserter creates the opcode basing on the order of
+the method that he inserts.
+
+Byte Code Interpreter Definition
+================================
+
+A Bytecode Interpreter Definition consists of two mayor
+parts: The memory definition that defines the number of data
+registers (up to 63), the number of memory words (up to
+65535) and the number of program memory words (up to 65535).
+
+The second part defines the commands. The definition
+contains bot the order of the commands (see `The Dynamic
+Instruction Set`_) and the required arguments.
+
diff --git a/language.pdf b/language.pdf
new file mode 100644
index 0000000..0c9f798
--- /dev/null
+++ b/language.pdf
@@ -0,0 +1,881 @@
+%PDF-1.4
+%“Œ‹ž ReportLab Generated PDF document http://www.reportlab.com
+1 0 obj
+<< /F1 2 0 R /F2 3 0 R /F3 14 0 R >>
+endobj
+2 0 obj
+<< /BaseFont /Helvetica /Encoding /WinAnsiEncoding /Name /F1 /Subtype /Type1 /Type /Font >>
+endobj
+3 0 obj
+<< /BaseFont /Helvetica-Bold /Encoding /WinAnsiEncoding /Name /F2 /Subtype /Type1 /Type /Font >>
+endobj
+4 0 obj
+<< /Border [ 0 0 0 ] /Contents () /Dest [ 15 0 R /XYZ 62.69291 600.0236 0 ] /Rect [ 62.69291 687.0236 299.9529 699.0236 ] /Subtype /Link /Type /Annot >>
+endobj
+5 0 obj
+<< /Border [ 0 0 0 ] /Contents () /Dest [ 15 0 R /XYZ 62.69291 600.0236 0 ] /Rect [ 527.0227 687.7736 532.5827 699.7736 ] /Subtype /Link /Type /Annot >>
+endobj
+6 0 obj
+<< /Border [ 0 0 0 ] /Contents () /Dest [ 15 0 R /XYZ 62.69291 224.2236 0 ] /Rect [ 62.69291 669.0236 154.3629 681.0236 ] /Subtype /Link /Type /Annot >>
+endobj
+7 0 obj
+<< /Border [ 0 0 0 ] /Contents () /Dest [ 15 0 R /XYZ 62.69291 224.2236 0 ] /Rect [ 527.0227 669.7736 532.5827 681.7736 ] /Subtype /Link /Type /Annot >>
+endobj
+8 0 obj
+<< /Border [ 0 0 0 ] /Contents () /Dest [ 16 0 R /XYZ 62.69291 380.0236 0 ] /Rect [ 62.69291 651.0236 114.3629 663.0236 ] /Subtype /Link /Type /Annot >>
+endobj
+9 0 obj
+<< /Border [ 0 0 0 ] /Contents () /Dest [ 16 0 R /XYZ 62.69291 380.0236 0 ] /Rect [ 527.0227 651.7736 532.5827 663.7736 ] /Subtype /Link /Type /Annot >>
+endobj
+10 0 obj
+<< /Border [ 0 0 0 ] /Contents () /Dest [ 16 0 R /XYZ 62.69291 329.0236 0 ] /Rect [ 62.69291 633.0236 91.59291 645.0236 ] /Subtype /Link /Type /Annot >>
+endobj
+11 0 obj
+<< /Border [ 0 0 0 ] /Contents () /Dest [ 16 0 R /XYZ 62.69291 329.0236 0 ] /Rect [ 527.0227 633.7736 532.5827 645.7736 ] /Subtype /Link /Type /Annot >>
+endobj
+12 0 obj
+<< /Border [ 0 0 0 ] /Contents () /Dest [ 18 0 R /XYZ 62.69291 765.0236 0 ] /Rect [ 62.69291 615.0236 118.2529 627.0236 ] /Subtype /Link /Type /Annot >>
+endobj
+13 0 obj
+<< /Border [ 0 0 0 ] /Contents () /Dest [ 18 0 R /XYZ 62.69291 765.0236 0 ] /Rect [ 527.0227 615.7736 532.5827 627.7736 ] /Subtype /Link /Type /Annot >>
+endobj
+14 0 obj
+<< /BaseFont /Courier /Encoding /WinAnsiEncoding /Name /F3 /Subtype /Type1 /Type /Font >>
+endobj
+15 0 obj
+<< /Annots [ 4 0 R 5 0 R 6 0 R 7 0 R 8 0 R 9 0 R 10 0 R 11 0 R 12 0 R 13 0 R ] /Contents 28 0 R /MediaBox [ 0 0 595.2756 841.8898 ] /Parent 27 0 R /Resources << /Font 1 0 R /ProcSet [ /PDF /Text /ImageB /ImageC /ImageI ] >> /Rotate 0 
+  /Trans <<  >> /Type /Page >>
+endobj
+16 0 obj
+<< /Contents 29 0 R /MediaBox [ 0 0 595.2756 841.8898 ] /Parent 27 0 R /Resources << /Font 1 0 R /ProcSet [ /PDF /Text /ImageB /ImageC /ImageI ] >> /Rotate 0 /Trans <<  >> 
+  /Type /Page >>
+endobj
+17 0 obj
+<< /Border [ 0 0 0 ] /Contents () /Dest [ 16 0 R /XYZ 62.69291 332.5236 0 ] /Rect [ 62.69291 680.7736 91.59291 692.7736 ] /Subtype /Link /Type /Annot >>
+endobj
+18 0 obj
+<< /Annots [ 17 0 R ] /Contents 30 0 R /MediaBox [ 0 0 595.2756 841.8898 ] /Parent 27 0 R /Resources << /Font 1 0 R /ProcSet [ /PDF /Text /ImageB /ImageC /ImageI ] >> /Rotate 0 
+  /Trans <<  >> /Type /Page >>
+endobj
+19 0 obj
+<< /Outlines 21 0 R /PageLabels 31 0 R /PageMode /UseNone /Pages 27 0 R /Type /Catalog >>
+endobj
+20 0 obj
+<< /Author () /CreationDate (D:20181006214702+00'00') /Creator (\(unspecified\)) /Keywords () /ModDate (D:20181006214702+00'00') /Producer (ReportLab PDF Library - www.reportlab.com) 
+  /Subject (\(unspecified\)) /Title (BCI Assembly Language) /Trapped /False >>
+endobj
+21 0 obj
+<< /Count 5 /First 22 0 R /Last 26 0 R /Type /Outlines >>
+endobj
+22 0 obj
+<< /Dest [ 15 0 R /XYZ 62.69291 600.0236 0 ] /Next 23 0 R /Parent 21 0 R /Title (Commands, Small Arguments and Big Arguments) >>
+endobj
+23 0 obj
+<< /Dest [ 15 0 R /XYZ 62.69291 224.2236 0 ] /Next 24 0 R /Parent 21 0 R /Prev 22 0 R /Title (Built-In Commands) >>
+endobj
+24 0 obj
+<< /Dest [ 16 0 R /XYZ 62.69291 380.0236 0 ] /Next 25 0 R /Parent 21 0 R /Prev 23 0 R /Title (Comments) >>
+endobj
+25 0 obj
+<< /Dest [ 16 0 R /XYZ 62.69291 329.0236 0 ] /Next 26 0 R /Parent 21 0 R /Prev 24 0 R /Title (Marks) >>
+endobj
+26 0 obj
+<< /Dest [ 18 0 R /XYZ 62.69291 765.0236 0 ] /Parent 21 0 R /Prev 25 0 R /Title (Direct Input) >>
+endobj
+27 0 obj
+<< /Count 3 /Kids [ 15 0 R 16 0 R 18 0 R ] /Type /Pages >>
+endobj
+28 0 obj
+<< /Length 6815 >>
+stream
+1 0 0 1 0 0 cm  BT /F1 12 Tf 14.4 TL ET
+q
+1 0 0 1 62.69291 741.0236 cm
+q
+0 0 0 rg
+BT 1 0 0 1 0 4 Tm /F2 20 Tf 24 TL 117.6949 0 Td (BCI Assembly Language) Tj T* -117.6949 0 Td ET
+Q
+Q
+q
+1 0 0 1 62.69291 708.0236 cm
+q
+BT 1 0 0 1 0 3.5 Tm 21 TL /F2 17.5 Tf 0 0 0 rg (Contents) Tj T* ET
+Q
+Q
+q
+1 0 0 1 62.69291 612.0236 cm
+0 0 0 rg
+BT /F1 10 Tf 12 TL ET
+q
+1 0 0 1 0 75 cm
+q
+BT 1 0 0 1 0 2 Tm 12 TL /F2 10 Tf 0 0 .501961 rg (Commands, Small Arguments and Big Arguments) Tj T* ET
+Q
+Q
+q
+1 0 0 1 397.8898 75 cm
+q
+0 0 .501961 rg
+0 0 .501961 RG
+BT 1 0 0 1 0 2 Tm /F2 10 Tf 12 TL 66.44 0 Td (1) Tj T* -66.44 0 Td ET
+Q
+Q
+q
+1 0 0 1 0 57 cm
+q
+BT 1 0 0 1 0 2 Tm 12 TL /F2 10 Tf 0 0 .501961 rg (Built-In Commands) Tj T* ET
+Q
+Q
+q
+1 0 0 1 397.8898 57 cm
+q
+0 0 .501961 rg
+0 0 .501961 RG
+BT 1 0 0 1 0 2 Tm /F2 10 Tf 12 TL 66.44 0 Td (1) Tj T* -66.44 0 Td ET
+Q
+Q
+q
+1 0 0 1 0 39 cm
+q
+BT 1 0 0 1 0 2 Tm 12 TL /F2 10 Tf 0 0 .501961 rg (Comments) Tj T* ET
+Q
+Q
+q
+1 0 0 1 397.8898 39 cm
+q
+0 0 .501961 rg
+0 0 .501961 RG
+BT 1 0 0 1 0 2 Tm /F2 10 Tf 12 TL 66.44 0 Td (2) Tj T* -66.44 0 Td ET
+Q
+Q
+q
+1 0 0 1 0 21 cm
+q
+BT 1 0 0 1 0 2 Tm 12 TL /F2 10 Tf 0 0 .501961 rg (Marks) Tj T* ET
+Q
+Q
+q
+1 0 0 1 397.8898 21 cm
+q
+0 0 .501961 rg
+0 0 .501961 RG
+BT 1 0 0 1 0 2 Tm /F2 10 Tf 12 TL 66.44 0 Td (2) Tj T* -66.44 0 Td ET
+Q
+Q
+q
+1 0 0 1 0 3 cm
+q
+BT 1 0 0 1 0 2 Tm 12 TL /F2 10 Tf 0 0 .501961 rg (Direct Input) Tj T* ET
+Q
+Q
+q
+1 0 0 1 397.8898 3 cm
+q
+0 0 .501961 rg
+0 0 .501961 RG
+BT 1 0 0 1 0 2 Tm /F2 10 Tf 12 TL 66.44 0 Td (3) Tj T* -66.44 0 Td ET
+Q
+Q
+q
+Q
+Q
+q
+1 0 0 1 62.69291 579.0236 cm
+q
+BT 1 0 0 1 0 3.5 Tm 21 TL /F2 17.5 Tf 0 0 0 rg (Commands, Small Arguments and Big Arguments) Tj T* ET
+Q
+Q
+q
+1 0 0 1 62.69291 549.0236 cm
+q
+BT 1 0 0 1 0 14 Tm .87311 Tw 12 TL /F1 10 Tf 0 0 0 rg (A command in BCI Assembly is a word starting with an alphabetic character \() Tj /F3 10 Tf 0 0 0 rg (a..zA..Z) Tj /F1 10 Tf 0 0 0 rg (\) following by a) Tj T* 0 Tw (sequence of alphanumeric characters \() Tj /F3 10 Tf 0 0 0 rg (a..zA..Z0..9) Tj /F1 10 Tf 0 0 0 rg (\). This word will be converted to a 10bit opcode.) Tj T* ET
+Q
+Q
+q
+1 0 0 1 62.69291 519.0236 cm
+q
+0 0 0 rg
+BT 1 0 0 1 0 14 Tm /F1 10 Tf 12 TL 2.147882 Tw (Embedded in the 16bits of a word there is also a 6bit small argument. If a command has no small) Tj T* 0 Tw (argument these bits will be zeroed. In the assembly the command will be only one word, for example:) Tj T* ET
+Q
+Q
+q
+1 0 0 1 62.69291 485.8236 cm
+q
+q
+1 0 0 1 0 0 cm
+q
+1 0 0 1 6.6 6.6 cm
+q
+.662745 .662745 .662745 RG
+.5 w
+.960784 .960784 .862745 rg
+n -6 -6 468.6898 24 re B*
+Q
+q
+0 0 0 rg
+BT 1 0 0 1 0 2 Tm /F3 10 Tf 12 TL (cli) Tj T* ET
+Q
+Q
+Q
+Q
+Q
+q
+1 0 0 1 62.69291 453.8236 cm
+q
+0 0 0 rg
+BT 1 0 0 1 0 14 Tm /F1 10 Tf 12 TL .345988 Tw (If the command has a small argument, the 6 bit will be filled with the small argument. In the assembly the) Tj T* 0 Tw (small argument is separated by one whitespace, for example:) Tj T* ET
+Q
+Q
+q
+1 0 0 1 62.69291 420.6236 cm
+q
+q
+1 0 0 1 0 0 cm
+q
+1 0 0 1 6.6 6.6 cm
+q
+.662745 .662745 .662745 RG
+.5 w
+.960784 .960784 .862745 rg
+n -6 -6 468.6898 24 re B*
+Q
+q
+0 0 0 rg
+BT 1 0 0 1 0 2 Tm /F3 10 Tf 12 TL (inc r0) Tj T* ET
+Q
+Q
+Q
+Q
+Q
+q
+1 0 0 1 62.69291 376.6236 cm
+q
+BT 1 0 0 1 0 26 Tm .629431 Tw 12 TL /F1 10 Tf 0 0 0 rg (Any other arguments are stored in further words and have thus a width of 16bits. They are separated by) Tj T* 0 Tw 2.211751 Tw (commas \() Tj /F3 10 Tf 0 0 0 rg (,) Tj /F1 10 Tf 0 0 0 rg (\) from both the first and any other arguments. It is recommended to only add one more) Tj T* 0 Tw (argument.) Tj T* ET
+Q
+Q
+q
+1 0 0 1 62.69291 358.6236 cm
+q
+0 0 0 rg
+BT 1 0 0 1 0 2 Tm /F1 10 Tf 12 TL (Example for one big argument:) Tj T* ET
+Q
+Q
+q
+1 0 0 1 62.69291 325.4236 cm
+q
+q
+1 0 0 1 0 0 cm
+q
+1 0 0 1 6.6 6.6 cm
+q
+.662745 .662745 .662745 RG
+.5 w
+.960784 .960784 .862745 rg
+n -6 -6 468.6898 24 re B*
+Q
+q
+0 0 0 rg
+BT 1 0 0 1 0 2 Tm /F3 10 Tf 12 TL (ldi r0, 0xdead) Tj T* ET
+Q
+Q
+Q
+Q
+Q
+q
+1 0 0 1 62.69291 293.4236 cm
+q
+0 0 0 rg
+BT 1 0 0 1 0 14 Tm /F1 10 Tf 12 TL 1.571318 Tw (It might be useful to have more arguments for other applications, like double precision floating points.) Tj T* 0 Tw (Example \(not implemented\):) Tj T* ET
+Q
+Q
+q
+1 0 0 1 62.69291 236.2236 cm
+q
+q
+1 0 0 1 0 0 cm
+q
+1 0 0 1 6.6 6.6 cm
+q
+.662745 .662745 .662745 RG
+.5 w
+.960784 .960784 .862745 rg
+n -6 -6 468.6898 48 re B*
+Q
+q
+0 0 0 rg
+BT 1 0 0 1 0 26 Tm /F3 10 Tf 12 TL (lddfi r0, 0xdead, 0xbeef) Tj T* (; load double precision floating point) Tj T* (; to r0 and r1) Tj T* ET
+Q
+Q
+Q
+Q
+Q
+q
+1 0 0 1 62.69291 203.2236 cm
+q
+BT 1 0 0 1 0 3.5 Tm 21 TL /F2 17.5 Tf 0 0 0 rg (Built-In Commands) Tj T* ET
+Q
+Q
+q
+1 0 0 1 62.69291 185.2236 cm
+q
+BT 1 0 0 1 0 2 Tm 12 TL /F3 10 Tf 0 0 0 rg (ldi) Tj ( ) Tj (<) Tj (sa) Tj (>) Tj (,) Tj ( ) Tj (<) Tj (ba) Tj (>) Tj T* ET
+Q
+Q
+q
+1 0 0 1 62.69291 170.2236 cm
+0 0 0 rg
+BT /F1 10 Tf 12 TL ET
+BT 1 0 0 1 0 2 Tm  T* ET
+q
+1 0 0 1 20 0 cm
+q
+BT 1 0 0 1 0 2 Tm 12 TL /F1 10 Tf 0 0 0 rg (Load the value ) Tj /F3 10 Tf 0 0 0 rg (<) Tj (ba) Tj (> ) Tj /F1 10 Tf 0 0 0 rg (into register ) Tj /F3 10 Tf 0 0 0 rg (<) Tj (sa) Tj (>) Tj /F1 10 Tf 0 0 0 rg (.) Tj T* ET
+Q
+Q
+q
+Q
+Q
+q
+1 0 0 1 62.69291 154.2236 cm
+q
+BT 1 0 0 1 0 2 Tm 12 TL /F3 10 Tf 0 0 0 rg (ld) Tj ( ) Tj (<) Tj (sa) Tj (>) Tj (,) Tj ( ) Tj (<) Tj (ba) Tj (>) Tj T* ET
+Q
+Q
+q
+1 0 0 1 62.69291 139.2236 cm
+0 0 0 rg
+BT /F1 10 Tf 12 TL ET
+BT 1 0 0 1 0 2 Tm  T* ET
+q
+1 0 0 1 20 0 cm
+q
+BT 1 0 0 1 0 2 Tm 12 TL /F1 10 Tf 0 0 0 rg (Load the value of the memory cell at ) Tj /F3 10 Tf 0 0 0 rg (<) Tj (ba) Tj (> ) Tj /F1 10 Tf 0 0 0 rg (into register ) Tj /F3 10 Tf 0 0 0 rg (<) Tj (sa) Tj (>) Tj /F1 10 Tf 0 0 0 rg (.) Tj T* ET
+Q
+Q
+q
+Q
+Q
+q
+1 0 0 1 62.69291 123.2236 cm
+q
+BT 1 0 0 1 0 2 Tm 12 TL /F3 10 Tf 0 0 0 rg (st) Tj ( ) Tj (<) Tj (sa) Tj (>) Tj (,) Tj ( ) Tj (<) Tj (ba) Tj (>) Tj T* ET
+Q
+Q
+q
+1 0 0 1 62.69291 108.2236 cm
+0 0 0 rg
+BT /F1 10 Tf 12 TL ET
+BT 1 0 0 1 0 2 Tm  T* ET
+q
+1 0 0 1 20 0 cm
+q
+BT 1 0 0 1 0 2 Tm 12 TL /F1 10 Tf 0 0 0 rg (Store the value of register ) Tj /F3 10 Tf 0 0 0 rg (<) Tj (sa) Tj (> ) Tj /F1 10 Tf 0 0 0 rg (into the memory cell at ) Tj /F3 10 Tf 0 0 0 rg (<) Tj (ba) Tj (>) Tj /F1 10 Tf 0 0 0 rg (.) Tj T* ET
+Q
+Q
+q
+Q
+Q
+q
+1 0 0 1 62.69291 92.22362 cm
+q
+BT 1 0 0 1 0 2 Tm 12 TL /F3 10 Tf 0 0 0 rg (inc) Tj ( ) Tj (<) Tj (sa) Tj (>) Tj T* ET
+Q
+Q
+q
+1 0 0 1 62.69291 77.22362 cm
+0 0 0 rg
+BT /F1 10 Tf 12 TL ET
+BT 1 0 0 1 0 2 Tm  T* ET
+q
+1 0 0 1 20 0 cm
+q
+BT 1 0 0 1 0 2 Tm 12 TL /F1 10 Tf 0 0 0 rg (Increment the value of register ) Tj /F3 10 Tf 0 0 0 rg (<) Tj (sa) Tj (>) Tj /F1 10 Tf 0 0 0 rg (.) Tj T* ET
+Q
+Q
+q
+Q
+Q
+ 
+endstream
+endobj
+29 0 obj
+<< /Length 7261 >>
+stream
+1 0 0 1 0 0 cm  BT /F1 12 Tf 14.4 TL ET
+q
+1 0 0 1 62.69291 753.0236 cm
+q
+BT 1 0 0 1 0 2 Tm 12 TL /F3 10 Tf 0 0 0 rg (dec) Tj ( ) Tj (<) Tj (sa) Tj (>) Tj T* ET
+Q
+Q
+q
+1 0 0 1 62.69291 738.0236 cm
+0 0 0 rg
+BT /F1 10 Tf 12 TL ET
+BT 1 0 0 1 0 2 Tm  T* ET
+q
+1 0 0 1 20 0 cm
+q
+BT 1 0 0 1 0 2 Tm 12 TL /F1 10 Tf 0 0 0 rg (Decrement the value of register ) Tj /F3 10 Tf 0 0 0 rg (<) Tj (sa) Tj (>) Tj /F1 10 Tf 0 0 0 rg (.) Tj T* ET
+Q
+Q
+q
+Q
+Q
+q
+1 0 0 1 62.69291 722.0236 cm
+q
+BT 1 0 0 1 0 2 Tm 12 TL /F3 10 Tf 0 0 0 rg (add|sub|mul|div) Tj ( ) Tj (<) Tj (sa) Tj (>) Tj (,) Tj ( ) Tj (<) Tj (ba) Tj (>) Tj T* ET
+Q
+Q
+q
+1 0 0 1 62.69291 695.0236 cm
+0 0 0 rg
+BT /F1 10 Tf 12 TL ET
+BT 1 0 0 1 0 14 Tm  T* ET
+q
+1 0 0 1 20 0 cm
+q
+BT 1 0 0 1 0 14 Tm 1.127318 Tw 12 TL /F3 10 Tf 0 0 0 rg (<) Tj (sa) Tj (>) Tj ( ) Tj (=) Tj ( ) Tj (<) Tj (sa) Tj (>) Tj ( ) Tj (+|-|*|/) Tj ( ) Tj (<) Tj (ba) Tj (> ) Tj /F1 10 Tf 0 0 0 rg (where ) Tj /F3 10 Tf 0 0 0 rg (<) Tj (sa) Tj (> ) Tj /F1 10 Tf 0 0 0 rg (and ) Tj /F3 10 Tf 0 0 0 rg (<) Tj (ba) Tj (> ) Tj /F1 10 Tf 0 0 0 rg (are registers. Write the overflow into the) Tj T* 0 Tw (status register.) Tj T* ET
+Q
+Q
+q
+Q
+Q
+q
+1 0 0 1 62.69291 679.0236 cm
+q
+BT 1 0 0 1 0 2 Tm 12 TL /F3 10 Tf 0 0 0 rg (gt|ge|lt|le|eq) Tj ( ) Tj (<) Tj (sa) Tj (>) Tj T* ET
+Q
+Q
+q
+1 0 0 1 62.69291 652.0236 cm
+0 0 0 rg
+BT /F1 10 Tf 12 TL ET
+BT 1 0 0 1 0 14 Tm  T* ET
+q
+1 0 0 1 20 0 cm
+q
+BT 1 0 0 1 0 14 Tm 2.431098 Tw 12 TL /F1 10 Tf 0 0 0 rg (Check if the value of register ) Tj /F3 10 Tf 0 0 0 rg (<) Tj (sa) Tj (> ) Tj /F1 10 Tf 0 0 0 rg (is ) Tj /F3 10 Tf 0 0 0 rg (>) Tj (|) Tj (>) Tj (=|) Tj (<) Tj (|) Tj (<) Tj (=|== ) Tj /F1 10 Tf 0 0 0 rg (to ) Tj /F3 10 Tf 0 0 0 rg (0) Tj /F1 10 Tf 0 0 0 rg (. Set the status register to ) Tj /F3 10 Tf 0 0 0 rg (1 ) Tj /F1 10 Tf 0 0 0 rg (if it) Tj T* 0 Tw (evaluates true, else to ) Tj /F3 10 Tf 0 0 0 rg (0) Tj /F1 10 Tf 0 0 0 rg (.) Tj T* ET
+Q
+Q
+q
+Q
+Q
+q
+1 0 0 1 62.69291 636.0236 cm
+q
+0 0 0 rg
+BT 1 0 0 1 0 2 Tm /F3 10 Tf 12 TL (not) Tj T* ET
+Q
+Q
+q
+1 0 0 1 62.69291 621.0236 cm
+0 0 0 rg
+BT /F1 10 Tf 12 TL ET
+BT 1 0 0 1 0 2 Tm  T* ET
+q
+1 0 0 1 20 0 cm
+q
+BT 1 0 0 1 0 2 Tm 12 TL /F1 10 Tf 0 0 0 rg (If the status register is ) Tj /F3 10 Tf 0 0 0 rg (0 ) Tj /F1 10 Tf 0 0 0 rg (set it to ) Tj /F3 10 Tf 0 0 0 rg (1) Tj /F1 10 Tf 0 0 0 rg (, else set it to ) Tj /F3 10 Tf 0 0 0 rg (0) Tj /F1 10 Tf 0 0 0 rg (.) Tj T* ET
+Q
+Q
+q
+Q
+Q
+q
+1 0 0 1 62.69291 605.0236 cm
+q
+BT 1 0 0 1 0 2 Tm 12 TL /F3 10 Tf 0 0 0 rg (jmp) Tj ( ) Tj (<) Tj (sa) Tj (>) Tj T* ET
+Q
+Q
+q
+1 0 0 1 62.69291 590.0236 cm
+0 0 0 rg
+BT /F1 10 Tf 12 TL ET
+BT 1 0 0 1 0 2 Tm  T* ET
+q
+1 0 0 1 20 0 cm
+q
+BT 1 0 0 1 0 2 Tm 12 TL /F1 10 Tf 0 0 0 rg (Set the program counter to the value of register ) Tj /F3 10 Tf 0 0 0 rg (<) Tj (sa) Tj (>) Tj /F1 10 Tf 0 0 0 rg (.) Tj T* ET
+Q
+Q
+q
+Q
+Q
+q
+1 0 0 1 62.69291 574.0236 cm
+q
+BT 1 0 0 1 0 2 Tm 12 TL /F3 10 Tf 0 0 0 rg (call) Tj ( ) Tj (<) Tj (sa) Tj (>) Tj T* ET
+Q
+Q
+q
+1 0 0 1 62.69291 547.0236 cm
+0 0 0 rg
+BT /F1 10 Tf 12 TL ET
+BT 1 0 0 1 0 14 Tm  T* ET
+q
+1 0 0 1 20 0 cm
+q
+BT 1 0 0 1 0 14 Tm .797633 Tw 12 TL /F1 10 Tf 0 0 0 rg (Push the current program counter on the stack and set the program counter to the value of register) Tj T* 0 Tw /F3 10 Tf 0 0 0 rg (<) Tj (sa) Tj (>) Tj /F1 10 Tf 0 0 0 rg (.) Tj T* ET
+Q
+Q
+q
+Q
+Q
+q
+1 0 0 1 62.69291 531.0236 cm
+q
+0 0 0 rg
+BT 1 0 0 1 0 2 Tm /F3 10 Tf 12 TL (ret) Tj T* ET
+Q
+Q
+q
+1 0 0 1 62.69291 516.0236 cm
+0 0 0 rg
+BT /F1 10 Tf 12 TL ET
+BT 1 0 0 1 0 2 Tm  T* ET
+q
+1 0 0 1 20 0 cm
+q
+0 0 0 rg
+BT 1 0 0 1 0 2 Tm /F1 10 Tf 12 TL (Pop the previously pushed program counter from the stack.) Tj T* ET
+Q
+Q
+q
+Q
+Q
+q
+1 0 0 1 62.69291 500.0236 cm
+q
+0 0 0 rg
+BT 1 0 0 1 0 2 Tm /F3 10 Tf 12 TL (stop) Tj T* ET
+Q
+Q
+q
+1 0 0 1 62.69291 485.0236 cm
+0 0 0 rg
+BT /F1 10 Tf 12 TL ET
+BT 1 0 0 1 0 2 Tm  T* ET
+q
+1 0 0 1 20 0 cm
+q
+BT 1 0 0 1 0 2 Tm 12 TL /F1 10 Tf 0 0 0 rg (Write ) Tj /F3 10 Tf 0 0 0 rg (1 ) Tj /F1 10 Tf 0 0 0 rg (into the shutdown register. This will cause the interpreter to halt.) Tj T* ET
+Q
+Q
+q
+Q
+Q
+q
+1 0 0 1 62.69291 469.0236 cm
+q
+0 0 0 rg
+BT 1 0 0 1 0 2 Tm /F3 10 Tf 12 TL (cl) Tj T* ET
+Q
+Q
+q
+1 0 0 1 62.69291 454.0236 cm
+0 0 0 rg
+BT /F1 10 Tf 12 TL ET
+BT 1 0 0 1 0 2 Tm  T* ET
+q
+1 0 0 1 20 0 cm
+q
+BT 1 0 0 1 0 2 Tm 12 TL /F1 10 Tf 0 0 0 rg (Write ) Tj /F3 10 Tf 0 0 0 rg (0 ) Tj /F1 10 Tf 0 0 0 rg (into the status register.) Tj T* ET
+Q
+Q
+q
+Q
+Q
+q
+1 0 0 1 62.69291 438.0236 cm
+q
+BT 1 0 0 1 0 2 Tm 12 TL /F3 10 Tf 0 0 0 rg (cjmp) Tj ( ) Tj (<) Tj (sa) Tj (>) Tj T* ET
+Q
+Q
+q
+1 0 0 1 62.69291 423.0236 cm
+0 0 0 rg
+BT /F1 10 Tf 12 TL ET
+BT 1 0 0 1 0 2 Tm  T* ET
+q
+1 0 0 1 20 0 cm
+q
+BT 1 0 0 1 0 2 Tm 12 TL /F1 10 Tf 0 0 0 rg (If there not a ) Tj /F3 10 Tf 0 0 0 rg (0 ) Tj /F1 10 Tf 0 0 0 rg (in the status register, ) Tj /F3 10 Tf 0 0 0 rg (jmp <) Tj (sa) Tj (>) Tj /F1 10 Tf 0 0 0 rg (, else continue execution.) Tj T* ET
+Q
+Q
+q
+Q
+Q
+q
+1 0 0 1 62.69291 407.0236 cm
+q
+BT 1 0 0 1 0 2 Tm 12 TL /F3 10 Tf 0 0 0 rg (ccall) Tj ( ) Tj (<) Tj (sa) Tj (>) Tj T* ET
+Q
+Q
+q
+1 0 0 1 62.69291 392.0236 cm
+0 0 0 rg
+BT /F1 10 Tf 12 TL ET
+BT 1 0 0 1 0 2 Tm  T* ET
+q
+1 0 0 1 20 0 cm
+q
+BT 1 0 0 1 0 2 Tm 12 TL /F1 10 Tf 0 0 0 rg (Like ) Tj /F3 10 Tf 0 0 0 rg (cjmp) Tj ( ) Tj (<) Tj (sa) Tj (> ) Tj /F1 10 Tf 0 0 0 rg (but with ) Tj /F3 10 Tf 0 0 0 rg (call ) Tj /F1 10 Tf 0 0 0 rg (instead.) Tj T* ET
+Q
+Q
+q
+Q
+Q
+q
+1 0 0 1 62.69291 359.0236 cm
+q
+BT 1 0 0 1 0 3.5 Tm 21 TL /F2 17.5 Tf 0 0 0 rg (Comments) Tj T* ET
+Q
+Q
+q
+1 0 0 1 62.69291 341.0236 cm
+q
+BT 1 0 0 1 0 2 Tm 12 TL /F1 10 Tf 0 0 0 rg (Comments start with a ) Tj /F3 10 Tf 0 0 0 rg (; ) Tj /F1 10 Tf 0 0 0 rg (at the beginning of the line and end at the end of the line.) Tj T* ET
+Q
+Q
+q
+1 0 0 1 62.69291 308.0236 cm
+q
+BT 1 0 0 1 0 3.5 Tm 21 TL /F2 17.5 Tf 0 0 0 rg (Marks) Tj T* ET
+Q
+Q
+q
+1 0 0 1 62.69291 278.0236 cm
+q
+0 0 0 rg
+BT 1 0 0 1 0 14 Tm /F1 10 Tf 12 TL .467485 Tw (Marks represent a special location of the assembly code. The assembler keeps track of those marks and) Tj T* 0 Tw (they can be used as immediate input.) Tj T* ET
+Q
+Q
+q
+1 0 0 1 62.69291 236.0236 cm
+q
+BT 1 0 0 1 0 26 Tm 2.869983 Tw 12 TL /F1 10 Tf 0 0 0 rg (A mark is defined by a single word, starting with an alphabetic character \() Tj /F3 10 Tf 0 0 0 rg (a..zA...Z) Tj /F1 10 Tf 0 0 0 rg (\) containing) Tj T* 0 Tw 2.330814 Tw (alphanumeric characters and underscores \() Tj /F3 10 Tf 0 0 0 rg (a..zA..Z0..9_) Tj /F1 10 Tf 0 0 0 rg (\) followed by a colon \() Tj /F3 10 Tf 0 0 0 rg (:) Tj /F1 10 Tf 0 0 0 rg (\) and a newline) Tj T* 0 Tw (character.) Tj T* ET
+Q
+Q
+q
+1 0 0 1 62.69291 218.0236 cm
+q
+0 0 0 rg
+BT 1 0 0 1 0 2 Tm /F1 10 Tf 12 TL (Example:) Tj T* ET
+Q
+Q
+q
+1 0 0 1 62.69291 100.8236 cm
+q
+q
+1 0 0 1 0 0 cm
+q
+1 0 0 1 6.6 6.6 cm
+q
+.662745 .662745 .662745 RG
+.5 w
+.960784 .960784 .862745 rg
+n -6 -6 468.6898 108 re B*
+Q
+q
+0 0 0 rg
+BT 1 0 0 1 0 86 Tm /F3 10 Tf 12 TL (ldi r0, this_is_a_mark) Tj T* (ldi r1, 0xfefe) Tj T* (ldi r2, 0xefef) Tj T*  T* (this_is_a_mark:) Tj T* (add r2, r1) Tj T* (; this will result in an infinite loop.) Tj T* (jmp r0) Tj T* ET
+Q
+Q
+Q
+Q
+Q
+ 
+endstream
+endobj
+30 0 obj
+<< /Length 2972 >>
+stream
+1 0 0 1 0 0 cm  BT /F1 12 Tf 14.4 TL ET
+q
+1 0 0 1 62.69291 744.0236 cm
+q
+BT 1 0 0 1 0 3.5 Tm 21 TL /F2 17.5 Tf 0 0 0 rg (Direct Input) Tj T* ET
+Q
+Q
+q
+1 0 0 1 62.69291 726.0236 cm
+q
+BT 1 0 0 1 0 2 Tm 12 TL /F1 10 Tf 0 0 0 rg (The core instruction set contains the ) Tj /F3 10 Tf 0 0 0 rg (ldi ) Tj /F1 10 Tf 0 0 0 rg (command that can be used to load data into a register directly.) Tj T* ET
+Q
+Q
+q
+1 0 0 1 62.69291 696.0236 cm
+q
+0 0 0 rg
+BT 1 0 0 1 0 14 Tm /F1 10 Tf 12 TL 2.501318 Tw (The first \(big\) argument of this command is always a 16bit word. The assembler can automatically) Tj T* 0 Tw (generate the correct value if the argument is provided in the following ways:) Tj T* ET
+Q
+Q
+q
+1 0 0 1 62.69291 680.0236 cm
+q
+0 0 .501961 rg
+0 0 .501961 RG
+BT 1 0 0 1 0 2 Tm /F2 10 Tf 12 TL (Marks) Tj T* ET
+Q
+Q
+q
+1 0 0 1 62.69291 665.0236 cm
+0 0 0 rg
+BT /F1 10 Tf 12 TL ET
+BT 1 0 0 1 0 2 Tm  T* ET
+q
+1 0 0 1 20 0 cm
+q
+0 0 0 rg
+BT 1 0 0 1 0 2 Tm /F1 10 Tf 12 TL (The assembler inserts the absolute offset of the Mark.) Tj T* ET
+Q
+Q
+q
+Q
+Q
+q
+1 0 0 1 62.69291 649.0236 cm
+q
+0 0 0 rg
+BT 1 0 0 1 0 2 Tm /F2 10 Tf 12 TL (A decimal value) Tj T* ET
+Q
+Q
+q
+1 0 0 1 62.69291 634.0236 cm
+0 0 0 rg
+BT /F1 10 Tf 12 TL ET
+BT 1 0 0 1 0 2 Tm  T* ET
+q
+1 0 0 1 20 0 cm
+q
+BT 1 0 0 1 0 2 Tm 12 TL /F1 10 Tf 0 0 0 rg (The assembler inserts the value \(i.e. ) Tj /F3 10 Tf 0 0 0 rg (ldi) Tj ( ) Tj (r0, 12) Tj /F1 10 Tf 0 0 0 rg (\).) Tj T* ET
+Q
+Q
+q
+Q
+Q
+q
+1 0 0 1 62.69291 618.0236 cm
+q
+0 0 0 rg
+BT 1 0 0 1 0 2 Tm /F2 10 Tf 12 TL (A hexadecimal value) Tj T* ET
+Q
+Q
+q
+1 0 0 1 62.69291 603.0236 cm
+0 0 0 rg
+BT /F1 10 Tf 12 TL ET
+BT 1 0 0 1 0 2 Tm  T* ET
+q
+1 0 0 1 20 0 cm
+q
+BT 1 0 0 1 0 2 Tm 12 TL /F1 10 Tf 0 0 0 rg (If the argument starts with ) Tj /F3 10 Tf 0 0 0 rg (0x ) Tj /F1 10 Tf 0 0 0 rg (the assembler will interpret the argument as hexadecimal.) Tj T* ET
+Q
+Q
+q
+Q
+Q
+q
+1 0 0 1 62.69291 587.0236 cm
+q
+0 0 0 rg
+BT 1 0 0 1 0 2 Tm /F2 10 Tf 12 TL (A binary value) Tj T* ET
+Q
+Q
+q
+1 0 0 1 62.69291 572.0236 cm
+0 0 0 rg
+BT /F1 10 Tf 12 TL ET
+BT 1 0 0 1 0 2 Tm  T* ET
+q
+1 0 0 1 20 0 cm
+q
+BT 1 0 0 1 0 2 Tm 12 TL /F1 10 Tf 0 0 0 rg (If the argument starts with ) Tj /F3 10 Tf 0 0 0 rg (0b ) Tj /F1 10 Tf 0 0 0 rg (the assembler will interpret the value as binary.) Tj T* ET
+Q
+Q
+q
+Q
+Q
+q
+1 0 0 1 62.69291 556.0236 cm
+q
+0 0 0 rg
+BT 1 0 0 1 0 2 Tm /F2 10 Tf 12 TL (A character) Tj T* ET
+Q
+Q
+q
+1 0 0 1 62.69291 529.0236 cm
+0 0 0 rg
+BT /F1 10 Tf 12 TL ET
+BT 1 0 0 1 0 14 Tm  T* ET
+q
+1 0 0 1 20 0 cm
+q
+BT 1 0 0 1 0 14 Tm .82811 Tw 12 TL /F1 10 Tf 0 0 0 rg (If the argument is either a single character surrounded by two ) Tj /F3 10 Tf 0 0 0 rg (' ) Tj /F1 10 Tf 0 0 0 rg (characters or any unicode escape) Tj T* 0 Tw (sequence surrounded by ) Tj /F3 10 Tf 0 0 0 rg (' ) Tj /F1 10 Tf 0 0 0 rg (characters the assembler will insert the integer representation.) Tj T* ET
+Q
+Q
+q
+Q
+Q
+ 
+endstream
+endobj
+31 0 obj
+<< /Nums [ 0 32 0 R 1 33 0 R 2 34 0 R ] >>
+endobj
+32 0 obj
+<< /S /D /St 1 >>
+endobj
+33 0 obj
+<< /S /D /St 2 >>
+endobj
+34 0 obj
+<< /S /D /St 3 >>
+endobj
+xref
+0 35
+0000000000 65535 f
+0000000075 00000 n
+0000000130 00000 n
+0000000240 00000 n
+0000000355 00000 n
+0000000526 00000 n
+0000000697 00000 n
+0000000868 00000 n
+0000001039 00000 n
+0000001210 00000 n
+0000001381 00000 n
+0000001553 00000 n
+0000001725 00000 n
+0000001897 00000 n
+0000002069 00000 n
+0000002178 00000 n
+0000002464 00000 n
+0000002674 00000 n
+0000002846 00000 n
+0000003075 00000 n
+0000003184 00000 n
+0000003467 00000 n
+0000003544 00000 n
+0000003692 00000 n
+0000003827 00000 n
+0000003953 00000 n
+0000004076 00000 n
+0000004193 00000 n
+0000004271 00000 n
+0000011143 00000 n
+0000018461 00000 n
+0000021490 00000 n
+0000021552 00000 n
+0000021589 00000 n
+0000021626 00000 n
+trailer
+<< /ID 
+ % ReportLab generated PDF document -- digest (http://www.reportlab.com)
+ [(\372\(\217\316\222\3169q\222\376\355\325c1\302>) (\372\(\217\316\222\3169q\222\376\355\325c1\302>)]
+ /Info 20 0 R /Root 19 0 R /Size 35 >>
+startxref
+21663
+%%EOF
diff --git a/language.rst b/language.rst
new file mode 100644
index 0000000..c7f53b5
--- /dev/null
+++ b/language.rst
@@ -0,0 +1,180 @@
+BCI Assembly Language
+*********************
+
+.. contents::
+
+Commands, Small Arguments and Big Arguments
+===========================================
+
+A command in BCI Assembly is a word starting with an
+alphabetic character (``a..zA..Z``) following by a sequence
+of alphanumeric characters (``a..zA..Z0..9``).
+This word will be converted to a 10bit opcode.
+
+Embedded in the 16bits of a word there is also a 6bit small
+argument. If a command has no small argument these bits will
+be zeroed. In the assembly the command will be only one
+word, for example::
+
+	cli
+
+If the command has a small argument, the 6 bit will be
+filled with the small argument. In the assembly the small
+argument is separated by one whitespace, for example::
+
+	inc r0
+
+Any other arguments are stored in further words and have
+thus a width of 16bits. They are separated by commas (``,``)
+from both the first and any other arguments.
+It is recommended to only add one more argument.
+
+Example for one big argument::
+
+	ldi r0, 0xdead
+
+It might be useful to have more arguments for other
+applications, like double precision floating points.
+Example (not implemented)::
+
+	lddfi r0, r1, 0xdead, 0xbeef
+	; load double precision floating point
+	; to r0 and r1
+
+Register Names
+==============
+
+Only data registers can be accessed directly. They are
+prefixed with a ``r`` and are indexed starting with ``0``.
+
+Examples: ``r0, r1, r2, ..., r11, r12``
+
+
+Built-In Commands
+=================
+
+``ldi <sa>, <ba>``
+	Load the value ``<ba>``  into register ``<sa>``.
+
+``ld <sa>, <ba>``
+	Load the value of the memory cell at ``<ba>`` into
+	register ``<sa>``.
+
+``st <sa>, <ba>``
+	Store the value of register ``<sa>`` into the memory
+	cell at ``<ba>``.
+
+``inc <sa>``
+	Increment the value of register ``<sa>``.
+
+``dec <sa>``
+	Decrement the value of register ``<sa>``.
+
+``add|sub|mul|div <sa>, <ba>``
+	``<sa> = <sa> +|-|*|/ <ba>`` where ``<sa>`` and
+	``<ba>`` are registers. Write the overflow into the
+	status register.
+
+``gt|ge|lt|le|eq <sa>``
+	Check if the value of register ``<sa>`` is
+	``>|>=|<|<=|==`` to ``0``. Set the status register
+	to ``1`` if it evaluates true, else to ``0``.
+
+``not``
+	If the status register is ``0`` set it to ``1``,
+	else set it to ``0``.
+
+``jmp <sa>``
+	Set the program counter to the value of register
+	``<sa>``.
+
+``call <sa>``
+	Push the current program counter on the stack and
+	set the program counter to the value of register ``<sa>``.
+
+``ret``
+	Pop the previously pushed program counter from the stack.
+
+``stop``
+	Write ``1`` into the shutdown register. This will
+	cause the interpreter to halt.
+``cl``
+	Write ``0`` into the status register.
+
+``cjmp <sa>``
+	If there not a ``0`` in the status register, ``jmp
+	<sa>``, else continue execution.
+
+``ccall <sa>``
+	Like ``cjmp <sa>`` but with ``call`` instead.
+
+Comments
+========
+
+Comments start with a ``;`` at the beginning of the line and
+end at the end of the line.
+
+Marks
+=====
+
+Marks represent a special location of the assembly code. The
+assembler keeps track of those marks and they can be used as
+immediate input.
+
+A mark is defined by a single word, starting with an
+alphabetic character (``a..zA...Z``) containing alphanumeric
+characters and underscores (``a..zA..Z0..9_``) followed by
+a colon (``:``) and a newline character.
+
+Example::
+
+	ldi r0, this_is_a_mark
+	ldi r1, 0xfefe
+	ldi r2, 0xefef
+
+	this_is_a_mark:
+	add r2, r1
+	; this will result in an infinite loop.
+	jmp r0
+
+
+Direct Input
+============
+
+The core instruction set contains the ``ldi`` command that
+can be used to load data into a register directly.
+
+The first (big) argument of this command is always a 16bit
+word. The assembler can automatically generate the correct
+value if the argument is provided in the following ways:
+
+`Marks`_
+	The assembler inserts the absolute offset of the
+	Mark.
+A decimal value
+	The assembler inserts the value (i.e. ``ldi r0,
+	12``).
+A hexadecimal value
+	If the argument starts with ``0x`` the assembler
+	will interpret the argument as hexadecimal.
+A binary value
+	If the argument starts with ``0b`` the assembler
+	will interpret the value as binary.
+A character
+	If the argument is either a single character
+	surrounded by two ``'`` characters or any unicode
+	escape sequence surrounded by ``'`` characters the
+	assembler will insert the integer representation.
+
+Explicit Data Programming
+=========================
+
+One can explicitly set data in the program memory by using
+the ``.set`` directive. It uses the following semantics::
+
+	".set" "[" <value> {,<value>} "]"
+
+Where ``<value>`` is a `Direct Input`_ value. The assembler
+will insert the data at exactly the location where the
+``.set`` appears. The assembler ignores any whitespace or
+newline characters between the brackets ``[]``.