ide rework again

- `VirtualBox-Wrapper.ps1` now takes 'up' or 'down' as opposed to a machine name. This allows start/stop of a virtualmachine.
- `VirtualBox-Wrapper.ps1` now relies on a gitignored `localenv.json` to work.
- `VirtualBox-Wrapper.ps1` can also optionally monitor the log file generated from the serial adapter in VirtualBox.
- `readme.md` updated to provide instructions on how to populate the `localenv.json` file.
- `tasks.json` updated to have a "Clean" task to --remove-orphans, the Build task depends on this.
- `tasks.json` updated to have a "Close VirtualBox" task, this runs the `virtualbox-wrapper.ps1` in 'down' mode. The Build task depends on this.
- `launch.json` updated to run the `VirtualBox-Wrapper.ps1` with the "-Command up" argument, instead of machine name.
- .gitignore updated to ignore any instances of `localenv.json`.

# Conflicts:
#	.gitignore

.drone.yml

@@ -1,66 +0,0 @@
-kind: pipeline
-type: docker
-name: build
-
-steps:
-  - name: build-image
-    image: plugins/docker
-    settings:
-      repo: t3hn3rd/asuro-build
-      tags: latest
-      dockerfile: Dockerfile
-      registry: docker.io
-      username:
-        from_secret: docker_username
-      password:
-        from_secret: docker_password
-
-  - name: compile
-    image: t3hn3rd/asuro-build:latest
-    depends_on:
-      - build-image
-    commands:
-      - git fetch --tags
-      - find . -type f -print0 | xargs -0 dos2unix
-      - chmod +x /drone/src/*.sh
-      - /drone/src/compile.sh
-      
-  - name: upload-iso-artifact
-    image: alpine/git
-    depends_on:
-      - compile
-    when:
-      branch:
-        - master
-    environment:
-      GITEA_TOKEN:
-        from_secret: gitea_token
-    commands:
-      - apk add --no-cache curl
-      - chmod +w Asuro.iso
-      - cp Asuro.iso "Asuro-$(git rev-parse --short HEAD).iso"
-      - echo "Uploading Asuro-$(git rev-parse --short HEAD).iso to Gitea Packages..."
-      - |
-         curl -X PUT "https://gitea.spexeah.com/api/packages/Spexeah/generic/asuro-iso/$(git rev-parse --short HEAD)/Asuro.iso" \
-         -H "Authorization: token $GITEA_TOKEN" --upload-file "Asuro-$(git rev-parse --short HEAD).iso"
-      - echo "Updating latest ISO reference..."
-      - |
-        curl -X DELETE https://gitea.spexeah.com/api/packages/Spexeah/generic/asuro-iso/latest/Asuro.iso \
-        -H "Authorization: token $GITEA_TOKEN" || echo "No previous latest version found."
-      - |
-        curl -X PUT https://gitea.spexeah.com/api/packages/Spexeah/generic/asuro-iso/latest/Asuro.iso \
-        -H "Authorization: token $GITEA_TOKEN" --upload-file "Asuro-$(git rev-parse --short HEAD).iso"
-
-  - name: msg status
-    image: appleboy/drone-discord
-    failure: ignore
-    depends_on:
-      - compile
-    when:
-      status: [success, failure, changed]
-    settings:
-      webhook_id:
-        from_secret: discord_webhook_id
-      webhook_token:
-        from_secret: discord_webhook_secret
-      message: "**Asuro Build**\n\n{{#success build.status}}✅ Build successful!\n\n{{else}}❌ Build failed!\n\n{{/success}}Repository: `{{repo.namespace}}/{{repo.name}}`\nBranch: `{{commit.branch}}`\nCommit: `{{commit.sha}}`\nAuthor: `{{commit.author}} <{{commit.email}}>`\n\nGitea Diff: [Link](<{{commit.link}}>)\nDrone Build: [Link](<{{build.link}}>)\n\nMessage: {{commit.message}}"

.gitattributes

@@ -1,8 +1 @@
 * text=auto eol=lf
-lvglh/** linguist-vendored
-lvgl/** linguist-vendored
-.vscode/* linguist-vendored
-lib/* linguist-generated
-release/* linguist-generated
-iso/* linguist-generated
-*.asm linguist-detectable

.gitignore

@@ -11,10 +11,3 @@
 /*.img
 src/include/asuro.pas
 localenv.json
-/lvgl/
-dockerout.txt
-AGENTS.md
-lessons_learnt.md
-*.log
-/doc/*.md
-wasuro

.gitlab-ci.yml

@@ -0,0 +1,73 @@
+stages:
+  - Compile Versions
+  - Compile Sources
+  - Link
+  - Generate Documentation
+  - Deploy
+
+cache:
+  - key: ${CI_COMMIT_REF_SLUG}
+    paths:
+      - lib/*.o
+      - bin/kernel.bin
+      - doc
+
+before_script:
+  - chmod +x *.sh
+
+versions:
+  stage: Compile Versions
+  script:
+    - ./compile_vergen.sh
+  artifacts:
+    paths:
+      - release/*.svg
+      - src/include/asuro.pas
+
+compile_sources:
+  stage: Compile Sources
+  script:
+    - rm -f lib/*.so
+    - ./compile_sources.sh
+  needs:
+    - versions
+
+link:
+  stage: Link
+  script:
+    - ./compile_stub.sh
+    - ./compile_link.sh
+  needs:
+    - versions
+    - compile_sources
+
+isogen:
+  stage: Deploy
+  script:
+    - ./compile_isogen.sh
+    - ./compile_sumgen.sh
+  artifacts:
+    paths:
+      - ./Asuro.iso
+      - ./release/checksum.svg
+  needs:
+    - link
+
+docgen:
+  stage: Generate Documentation
+  only:
+    - master
+    - develop
+  script:
+    - ./compile_sourcelist.sh
+    - ./compile_docs.sh
+    # Remove comments when we want to use gitlab pages.
+    #- cp doc public
+  allow_failure: true
+  artifacts:
+    paths:
+      - doc
+      #- public/*
+      #- ./sources.list
+  needs:
+    - versions

.mailmap

@@ -1,13 +0,0 @@
-# Map all Aaron identities to a single preferred identity
-Aaron Hance <[email protected]> aaron <aaron@6dbc8c32-bb84-406f-8558-d1cf31a0ab0c>
-Aaron Hance <[email protected]> aaronhance <[email protected]>
-Aaron Hance <[email protected]> aaron hance <[email protected]>
-Aaron Hance <[email protected]> Aaron <[email protected]>
-
-# Map all Kieron identities to a single preferred identity
-Kieron Morris <[email protected]> kieron <kieron@6dbc8c32-bb84-406f-8558-d1cf31a0ab0c>
-Kieron Morris <[email protected]> Kieron <[email protected]>
-Kieron Morris <[email protected]> t3hn3rd <[email protected]>
-
-# Map goose's multiple identities
-goose <goose@6dbc8c32-bb84-406f-8558-d1cf31a0ab0c> goose <[email protected]>

Dockerfile

@@ -5,18 +5,18 @@ VOLUME ["/code"]
 ENV DEBIAN_FRONTEND=noninteractive
 RUN dpkg --add-architecture i386
 RUN apt-get update && apt-get install -y \
-	curl dos2unix wget git make nasm binutils xorriso grub-pc-bin gcc gcc-multilib && \
+	curl dos2unix wget git make nasm binutils:i386 xorriso grub-pc-bin && \
 	apt-get clean my room
 
 SHELL ["/bin/bash", "-c"]
-ARG FPC_VERSION=3.2.2
+ARG FPC_VERSION=2.6.4
 RUN curl -sL https://sourceforge.net/projects/freepascal/files/Linux/$FPC_VERSION/fpc-$FPC_VERSION.i386-linux.tar/download | tar -xf - && \
 	pushd fpc-$FPC_VERSION.i386-linux && ./install.sh && popd && \
 	rm -rf fpc-$FPC_VERSION.i386-linux
 
 COPY compile.sh /compile.sh
 ADD https://raw.githubusercontent.com/fsaintjacques/semver-tool/master/src/semver /usr/bin/semver
-RUN chmod +x /usr/bin/semver
+RUN mkdir /code && chmod +x /usr/bin/semver
 WORKDIR /code
 RUN find . -type f -print0 | xargs -0 dos2unix
 ENTRYPOINT ["/bin/bash", "-c"]

compile.sh

@@ -7,7 +7,7 @@ echo "Asuro Compilation"
 echo " "
 
 #Compile Stub.asm
-rm -f lib/*
+rm lib/*
 
 runOrFail() {
 	local binary=$1
@@ -20,32 +20,26 @@ runOrFail() {
 	fi
 }
 
-declare -a run_steps=(
+runOrFail $(pwd)/compile_stub.sh "Failed to compile stub!"
-	"compile_stub.sh" "Failed to compile stub!"
-	"compile_vergen.sh" "Versions failed to compile"
-	"compile_lvgl.sh" "Failed to compile LVGL!"
-	"compile_wasuro.sh" "Failed to pull Wasuro!"
-	"compile_sources.sh" "Failed to compile FPC Sources!"
-	"compile_link.sh" "Failed linking!"
-	"compile_isogen.sh" "Failed to create ISO!"
-)
 
-for ((i=0; i<${#run_steps[@]}; i+=2))
+#Generate .pas with versioning headers.
-do
+runOrFail $(pwd)/compile_vergen.sh "Versions failed to compile"
-	if [ "$ERRCOUNT" -eq "0" ]
+
-	then
+#Compile all .pas sources
-			script=$(pwd)/"${run_steps[$i]}"
+runOrFail $(pwd)/compile_sources.sh "Failed to compile FPC Sources!"
-			message="${run_steps[$i+1]}"
+
-			runOrFail "$script" "$message"
+#Link into a binary.
-	fi
+runOrFail $(pwd)/compile_link.sh "Failed linking!"
-done
+
+#Generate an ISO with GRUB as the Bootloader.
+runOrFail ./compile_isogen.sh "Failed to create ISO!"
 
 #Call generate final artifacts based on failure or success of the above.
 if [ "$ERRCOUNT" -ne "0" ]
 then
-	. ./compile_finish.sh "failed"
+	./compile_finish.sh "failed"
 else
-	. ./compile_finish.sh "success"
+	./compile_finish.sh "success"
 fi
 
 cd ..

compile_link.sh

@@ -14,9 +14,4 @@ done;
 objstring=lib/stub.o" "$objstring 
 echo "Object Files: "$objstring
 echo " "
-
+ld -m elf_i386 -s --gc-sections -Tlinker.script -o bin/kernel.bin $objstring
-# Find libgcc for i386 (needed by LVGL compiled with gcc)
-LIBGCC=$(gcc -m32 -print-libgcc-file-name)
-echo "libgcc: ${LIBGCC}"
-
-ld -m elf_i386 -s --gc-sections -Tlinker.script -o bin/kernel.bin $objstring --start-group lib/liblvgl.a ${LIBGCC} --end-group

compile_lvgl.sh

@@ -1,132 +0,0 @@
-#!/usr/bin/env bash
-# compile_lvgl.sh — Download LVGL v9.2 source and compile into lib/liblvgl.a
-# Clone & compile in /tmp (fast container-local fs).
-# Cache liblvgl.a on host mount (/code/lvgl/) to skip rebuild.
-set -e
-
-LVGL_VERSION="v9.2.2"
-LVGL_REPO="https://github.com/lvgl/lvgl.git"
-LVGL_DIR="/tmp/lvgl"
-OBJ_DIR="/tmp/lvgl_obj"
-CONF_DIR="$(pwd)/lvglh"
-OUT_DIR="$(pwd)/lib"
-CACHE_DIR="/code/lvgl"
-
-CC="gcc"
-CFLAGS="-m32 -march=i686 -ffreestanding \
-    -fno-builtin -fno-stack-protector -fno-pic -fno-pie \
-    -O2 -Wall -Wno-unused-function -Wno-unused-variable \
-    -I${CONF_DIR} \
-    -I${LVGL_DIR} \
-    -I${LVGL_DIR}/.. \
-    -DLV_CONF_INCLUDE_SIMPLE"
-
-echo " "
-echo "======================="
-echo " "
-echo "Compiling LVGL..."
-echo " "
-
-# If cached liblvgl.a exists on host mount, just copy it and skip everything
-if [ -f "${CACHE_DIR}/liblvgl.a" ]; then
-    echo "Found cached liblvgl.a in ${CACHE_DIR}, copying to ${OUT_DIR}..."
-    cp "${CACHE_DIR}/liblvgl.a" "${OUT_DIR}/liblvgl.a"
-    echo "(Delete lvgl/liblvgl.a to force a full rebuild.)"
-    echo " "
-    echo "LVGL compilation complete (cached)."
-    echo " "
-    exit 0
-fi
-
-# Clone LVGL into /tmp (container-local)
-rm -rf "$LVGL_DIR"
-echo "Downloading LVGL ${LVGL_VERSION}..."
-git clone --depth 1 --branch "${LVGL_VERSION}" "${LVGL_REPO}" "${LVGL_DIR}" 2>&1
-echo "Download complete."
-
-# Gather all LVGL .c source files (core library only, no demos/examples)
-SOURCES=$(find "${LVGL_DIR}/src" -name '*.c' -not -path '*/test/*')
-TOTAL=$(echo "$SOURCES" | wc -l)
-echo "Found ${TOTAL} LVGL source files."
-
-# Compile each .c file to .o (container-local)
-rm -rf "$OBJ_DIR"
-mkdir -p "$OBJ_DIR"
-
-COUNT=0
-ERRORS=0
-for src in $SOURCES; do
-    COUNT=$((COUNT + 1))
-    rel="${src#${LVGL_DIR}/src/}"
-    obj_path="${OBJ_DIR}/${rel%.c}.o"
-    mkdir -p "$(dirname "$obj_path")"
-
-    if ! $CC $CFLAGS -c "$src" -o "$obj_path" 2>&1; then
-        echo "FAILED: $rel"
-        ERRORS=$((ERRORS + 1))
-    fi
-
-    if [ $((COUNT % 50)) -eq 0 ]; then
-        echo "  Compiled ${COUNT}/${TOTAL}..."
-    fi
-done
-
-echo "Compiled ${COUNT} files (${ERRORS} errors)."
-
-if [ "$ERRORS" -ne 0 ]; then
-    echo "LVGL compilation FAILED with ${ERRORS} errors."
-    exit 1
-fi
-
-# Archive into static library
-OBJECTS=$(find "$OBJ_DIR" -name '*.o')
-ar rcs "${OUT_DIR}/liblvgl.a" $OBJECTS
-echo "Created ${OUT_DIR}/liblvgl.a"
-
-# Compile custom LVGL extension files from lvglh/
-LVGLH_SOURCES=$(find "${CONF_DIR}" -name '*.c' 2>/dev/null || true)
-if [ -n "$LVGLH_SOURCES" ]; then
-    echo " "
-    echo "Compiling custom LVGL files from lvglh/..."
-    LVGLH_OBJ_DIR="/tmp/lvglh_obj"
-    rm -rf "$LVGLH_OBJ_DIR"
-    mkdir -p "$LVGLH_OBJ_DIR"
-    HCOUNT=0
-    HERRORS=0
-    for src in $LVGLH_SOURCES; do
-        HCOUNT=$((HCOUNT + 1))
-        rel="${src#${CONF_DIR}/}"
-        obj_path="${LVGLH_OBJ_DIR}/${rel%.c}.o"
-        mkdir -p "$(dirname "$obj_path")"
-        echo "  [lvglh] $rel"
-        if ! $CC $CFLAGS -c "$src" -o "$obj_path" 2>&1; then
-            echo "  FAILED: $rel"
-            HERRORS=$((HERRORS + 1))
-        fi
-    done
-    echo "Compiled ${HCOUNT} custom files (${HERRORS} errors)."
-    if [ "$HERRORS" -ne 0 ]; then
-        echo "Custom LVGL compilation FAILED."
-        exit 1
-    fi
-    # Append custom objects into the existing archive
-    HOBJECTS=$(find "$LVGLH_OBJ_DIR" -name '*.o')
-    ar rcs "${OUT_DIR}/liblvgl.a" $HOBJECTS
-    echo "Updated ${OUT_DIR}/liblvgl.a with custom objects."
-else
-    echo "No custom LVGL files in lvglh/."
-fi
-
-# Cache liblvgl.a and source to host mount for next build
-echo "Caching LVGL to host mount..."
-mkdir -p "$CACHE_DIR"
-rm -rf ${CACHE_DIR}/* ${CACHE_DIR}/.[!.]* ${CACHE_DIR}/..?* 2>/dev/null || true
-cp "${OUT_DIR}/liblvgl.a" "${CACHE_DIR}/liblvgl.a"
-cp -a "$LVGL_DIR/src" "${CACHE_DIR}/src"
-cp -a "$LVGL_DIR"/*.h "${CACHE_DIR}/" 2>/dev/null || true
-cp -a "$OBJ_DIR" "${CACHE_DIR}/obj"
-echo "Done."
-
-echo " "
-echo "LVGL compilation complete."
-echo " "

compile_sources.sh

@@ -4,10 +4,4 @@ echo "======================="
 echo " "
 echo "Compiling FPC Sources..."
 echo " "
-# Build -Fu flags for all directories under src/ and wasuro/
+fpc -Aelf -gw -n -va -O3 -Op3 -Si -Sc -Sg -Xd -CX -XXs -CfSSE -CfSSE2 -Rintel -Pi386 -Tlinux -FElib/ -Fusrc/* -Fusrc/driver/* -Fusrc/driver/net/* src/kernel.pas
-FU_PATHS="-Fusrc -Fuwasuro"
-for dir in $(find src wasuro -type d 2>/dev/null); do
-    FU_PATHS="$FU_PATHS -Fu$dir"
-done
-
-fpc -Aelf -gw -g -gl -n -v0e -O3 -OpPENTIUM3 -Si -Sc -Sg -Xd -CX -XXs -CfSSE -CfSSE2 -Rintel -Pi386 -Tlinux -FElib/ $FU_PATHS src/kernel.pas

compile_stub.sh

@@ -5,4 +5,3 @@ echo " "
 echo "Compiling Stub..."
 echo " "
 nasm -f elf src/stub/stub.asm -o lib/stub.o
-nasm -f elf src/stub/splash_tga.asm -o lib/splash_tga.o

compile_wasuro.sh

@@ -1,43 +0,0 @@
-#!/usr/bin/env bash
-# compile_wasuro.sh — Pull Wasuro WASM runtime source into wasuro/
-# Clones the repo (sparse, src/wasm only) and copies the Pascal sources
-# into $PWD/wasuro so the FPC build can reference them via -Fu.
-set -e
-
-WASURO_REPO="https://gitea.spexeah.com/Spexeah/Wasuro.git"
-WASURO_BRANCH="develop"
-WASURO_TMP="/tmp/wasuro"
-WASURO_OUT="$(pwd)/wasuro"
-
-echo " "
-echo "======================="
-echo " "
-echo "Pulling Wasuro WASM runtime..."
-echo " "
-
-# Skip if wasuro/ already has .pas files (cached from previous build)
-if [ -n "$(find "${WASURO_OUT}" -name '*.pas' 2>/dev/null | head -1)" ]; then
-    echo "Wasuro sources already present in ${WASURO_OUT}, skipping pull."
-    echo " "
-    exit 0
-fi
-
-# Clone sparse checkout (only src/wasm)
-rm -rf "$WASURO_TMP"
-git clone --depth 1 --branch "${WASURO_BRANCH}" --filter=blob:none --sparse \
-    "${WASURO_REPO}" "${WASURO_TMP}" 2>&1
-cd "$WASURO_TMP"
-git sparse-checkout set src/wasm 2>&1
-cd -
-
-echo "Copying src/wasm to ${WASURO_OUT}..."
-rm -rf "$WASURO_OUT"
-mkdir -p "$WASURO_OUT"
-cp -a "${WASURO_TMP}/src/wasm/"* "$WASURO_OUT"/
-rm -rf "$WASURO_TMP"
-
-TOTAL=$(find "$WASURO_OUT" -name '*.pas' | wc -l)
-echo "Copied ${TOTAL} Pascal source files."
-echo " "
-echo "Wasuro pull complete."
-echo " "

iso/hello.txt

@@ -1 +0,0 @@
-Hello from the Asuro ISO!

linker.script

@@ -2,7 +2,7 @@ ENTRY(loader)
 SECTIONS
 {
   . = 0xC0100000;
-  kernel_start = .;
+
   .text : AT(ADDR(.text) - 0xC0000000)
   {
     text = .; _text = .; __text = .;
@@ -33,15 +33,4 @@ SECTIONS
     . = ALIGN(4096);
   }
   end = .; _end = .; __end = .;
-  kernel_end = .;
-
-  /DISCARD/ : {
-    *(.init_array*)
-    *(.fini_array*)
-    *(.ctors)
-    *(.dtors)
-    *(.eh_frame*)
-    *(.gcc_except_table*)
-    *(.note.GNU-stack)
-  }
 }

src/contextswitcher.pas

@@ -13,120 +13,14 @@
 //  limitations under the License.
 
 { 
-    ContextSwitcher - Custom IRQ0 handler for preemptive context switching.
+	ContextSwitcher - Switch Process Contexts when preempted.
-
-    Replaces the default ISR_32 with a naked assembly stub that saves the
-    interrupted context (PUSHAD + segment regs), calls a Pascal helper to
-    dispatch timer hooks, send EOI, and run the scheduler, then restores
-    the next process context (or idles) via the returned ESP.
 	
 	@author(Kieron Morris <[email protected]>)
 }
 unit contextswitcher;
 
-{$ASMMODE intel}
-
 interface
 
-uses
+implementation;
-    idt, isrmanager, processmanager, proctypes, util, syslog, tracer;
-
-{ Initialise: overwrite IDT gate 32 with our custom ISR. }
-procedure init;
-
-{ No idle ESP variable needed — idle is now a formal process (PID 0)
-  with its SavedESP managed like any other process. }
-
-implementation
-
-{ -----------------------------------------------------------------------
-  do_context_switch_work
-  Pascal helper called from the assembly ISR.  Receives the current ESP
-  (pointing to the GS..EFLAGS save area), dispatches timer hooks, sends
-  EOI, runs the scheduler and returns the ESP for the next context.
-  Uses register calling convention: saved_esp in EAX, result in EAX.
-  ----------------------------------------------------------------------- }
-function do_context_switch_work(saved_esp : uint32) : uint32;
-var
-    next : PProcessContext;
-begin
-    { 1. Save ESP into the current process }
-    processmanager.CurrentProcess^.SavedESP := saved_esp;
-
-    { 2. Dispatch all hooks registered on interrupt 32 (timer hooks).
-         This fires TMR_0_ISR.Main which in turn fires BDA tick,
-         graphics refresh, USB hotplug, etc. }
-    isrmanager.dispatchHooks(32);
-
-    { 3. Send End-Of-Interrupt to the master PIC }
-    outb($20, $20);
-
-    { 4. Pick the next process to run (always returns non-nil; idle as fallback) }
-    next := processmanager.scheduler_pick_next;
-    processmanager.CurrentProcess := next;
-
-    { 5. Return the selected process ESP }
-    do_context_switch_work := next^.SavedESP;
-end;
-
-{ -----------------------------------------------------------------------
-  context_switch_isr
-  Naked assembly ISR that replaces ISR_32 (IRQ0 / PIT timer).
-
-  Stack on entry (pushed by CPU):
-      [ESP+8] EFLAGS
-      [ESP+4] CS
-      [ESP+0] EIP
-
-  We push general-purpose and segment registers, call the Pascal helper,
-  switch ESP to the returned value, pop registers and IRETD.
-  ----------------------------------------------------------------------- }
-procedure context_switch_isr; assembler; nostackframe;
-asm
-    { Save all general-purpose registers (EAX,ECX,EDX,EBX,ESP,EBP,ESI,EDI) }
-    pushad
-
-    { Save segment registers }
-    push ds
-    push es
-    push fs
-    push gs
-
-    { Load kernel data segments }
-    mov ax, $10
-    mov ds, ax
-    mov es, ax
-    mov fs, ax
-    mov gs, ax
-
-    { Call Pascal helper: EAX = current ESP (register calling convention).
-      Returns new ESP in EAX. }
-    mov eax, esp
-    call do_context_switch_work
-    mov esp, eax
-
-    { Restore segment registers }
-    pop gs
-    pop fs
-    pop es
-    pop ds
-
-    { Restore general-purpose registers }
-    popad
-
-    { Return from interrupt }
-    iretd
-end;
-
-{ -----------------------------------------------------------------------
-  init
-  Override IDT gate 32 with our custom ISR.  Must be called AFTER
-  isrmanager.init so that the default gate has been set up first.
-  ----------------------------------------------------------------------- }
-procedure init;
-begin
-    idt.set_gate(32, uint32(@context_switch_isr), $08, ISR_RING_0);
-    tracer.push_trace('contextswitcher.init');
-end;
 
 end.