Added Wavedrom register diagrams for the instruction encoding formats

Makefile

@@ -3,7 +3,7 @@
 
 DOCS := central-execution-engine-spec
 
-DOCKER_IMG := asciidoctor/docker-asciidoctor:latest 
+DOCKER_IMG := docker-asciidoctor-wavedrom:latest 
 
 ENV := LANG=C.utf8
 
@@ -40,13 +40,14 @@ WORKDIR_TEARDOWN = \
     mv $@.workdir/$@ $@ && \
     rm -rf $@.workdir
 
-SRC_DIR   := src
+SRC_DIR    := src
-BUILD_DIR := build
+BUILD_DIR  := build
+DOCKER_DIR := docker
 
 ALL_SRC  := $(shell find $(SRC_DIR) -type f -name '*.adoc' -print)
 DOCS_PDF := $(addprefix $(BUILD_DIR)/, $(addsuffix .pdf, $(DOCS)))
 
-.PHONY: all build docker-pull-latest clean
+.PHONY: all build create-docker-image clean
 
 all: build-pdf
 
@@ -57,8 +58,8 @@ $(BUILD_DIR)/%.pdf: $(SRC_DIR)/%.adoc $(ALL_SRC)
 	$(DOCKER_CMD) '$(ENV) asciidoctor-pdf $(OPTIONS) $(REQUIRES) $<'
 	$(WORKDIR_TEARDOWN)
 
-docker-pull-latest:
+create-docker-image:
-	$(SUDO_PREFIX) docker pull $(DOCKER_IMG)
+	$(SUDO_PREFIX) docker build -t $(DOCKER_IMG) $(DOCKER_DIR)
 
 clean:
 	@echo "Cleaning up generated files..."

README.md

@@ -5,5 +5,5 @@ This repository contains the documentation on the Central(Architecture).
 To build the documentation, `make` and `docker` should be installed in the build environment.
 
 ```bash
-make clean && make
+make create-docker-image && make
 ```

docker/Dockerfile

@@ -0,0 +1,4 @@
+FROM asciidoctor/docker-asciidoctor:latest
+
+RUN apk add npm
+RUN npm install -g wavedrom-cli bytefield-svg

src/central-execution-engine-spec.adoc

@@ -9,3 +9,5 @@ This means that the amount of information pertaining to the internals of an _Exe
 include::execution-engine-spec/glossary.adoc[]
 
 include::execution-engine-spec/data-manipulation.adoc[]
+
+include::execution-engine-spec/instructions.adoc[]

src/execution-engine-spec/images/instruction-formats.adoc

@@ -0,0 +1,48 @@
+[wavedrom, ,svg]
+....
+{reg: [
+  {bits: 7,  name: 'opcode'},
+  {bits: 5,  name: 'rd'},
+  {bits: 5,  name: 'rs1'},
+  {bits: 5,  name: 'rs2'},
+  {bits: 10,  name: 'imm'}
+], config: {label: {right: 'A-Type'}}}
+....
+
+[wavedrom, ,svg]
+....
+{reg: [
+  {bits: 7,  name: 'opcode'},
+  {bits: 5,  name: 'rd'},
+  {bits: 5,  name: 'rs'},
+  {bits: 15,  name: 'imm'}
+], config: {label: {right: 'B-Type'}}}
+....
+
+[wavedrom, ,svg]
+....
+{reg: [
+  {bits: 7,  name: 'opcode'},
+  {bits: 5,  name: 'rd'},
+  {bits: 20,  name: 'imm'}
+], config: {label: {right: 'C-Type'}}}
+....
+
+[wavedrom, ,svg]
+....
+{reg: [
+  {bits: 7,  name: 'opcode'},
+  {bits: 25,  name: 'imm'}
+], config: {label: {right: 'D-Type'}}}
+....
+
+[wavedrom, ,svg]
+....
+{reg: [
+  {bits: 7,  name: 'opcode'},
+  {bits: 5,  name: 'reg'},
+  {bits: 4,  name: 'sid'},
+  {bits: 8,  name: 'sre'},
+  {bits: 8,  name: 'cmd'}
+], config: {label: {right: 'E-Type'}}}
+....

src/execution-engine-spec/instructions.adoc

@@ -0,0 +1,5 @@
+== Instructions
+
+=== Instruction Encoding Formats
+
+include::images/instruction-formats.adoc[]