feature: add architecture-agnostic kernel panic (BSOD) engine

Introduce core.panic, a new architecture-agnostic kernel panic engine
with a pre-allocated LVGL BSOD screen. The screen and all widgets are
created at init time so that zero LVGL allocation occurs at panic time.

Layout features:
- Top banner with decoded teapot TGA image (128x128) and title/subtitle
- Two-column content area with dark semi-transparent cards:
  - Left: Fault Details, CPU Registers, Process Info, System Info
  - Right: Call Stack (full height)
- Pastel red background (#7A2828), monospace text for data sections

Key changes:
- Add core.panic.pas with pre-built BSOD screen, register/trace/system
  info formatting, hex conversion helpers, and syslog fallback
- Add arch.x86.panic.pas as the x86 bridge: packs interrupt registers
  into a TRegisterSnapshot and calls core.panic.panic()
- Simplify all 19 x86 fault handlers to one-liner panic calls
- Remove legacy BSOD code from arch.x86.util.pas
- Add teapot.tga (256x256) embedded via splash_tga.asm
- Add LVGL bindings: lv_refr_now, lv_image_create, lv_image_set_src,
  lv_image_set_scale, lv_image_set_inner_align, and style helpers
- Wire up panic init and test command in asuro.pas

.drone.yml

@@ -22,8 +22,8 @@ steps:
     commands:
       - git fetch --tags
       - find . -type f -print0 | xargs -0 dos2unix
-      - chmod +x /drone/src/*.sh
-      - /drone/src/compile.sh
+      - chmod +x /drone/src/toolchain/*.sh
+      - /drone/src/toolchain/compile.sh
       
   - name: upload-iso-artifact
     image: alpine/git

.gitignore

@@ -1,17 +1,21 @@
-*.o
-*.ppu
-*.s
-*.iso
-*.elf
-lib/
-release/
-doc/
-bin/
+/lib/*.ppu
+/lib/*.a
+/lib/*.o
+/release/*.svg
+/release/*.iso
+/bin/*.bin
+/iso/boot/asuro.bin
+/*.iso
+/*.md5
+/*.sh~
 /*.img
 src/include/asuro.pas
 localenv.json
 /lvgl/
 dockerout.txt
 AGENTS.md
+lessons_learnt.md
 *.log
 /doc/*.md
+wasuro
+src/core/core.version.pas

Dockerfile

@@ -14,10 +14,9 @@ RUN curl -sL https://sourceforge.net/projects/freepascal/files/Linux/$FPC_VERSIO
 	pushd fpc-$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
 WORKDIR /code
 RUN find . -type f -print0 | xargs -0 dos2unix
 ENTRYPOINT ["/bin/bash", "-c"]
-CMD ["/compile.sh"]
+CMD ["find toolchain -name '*.sh' -exec dos2unix {} + 2>/dev/null; find toolchain -name '*.sh' -exec chmod +x {} +; bash toolchain/compile.sh"]

checksums.md5

@@ -1,135 +0,0 @@
-
-c1e267c6b88cab4d1e3c86fa7f2f8ab1  src//contextswitcher.pas
-0be0d543ea50325c0dee1693c5854c48  src//cpu.pas
-ac76654ddebbeb1d3cc16ca4c85e77ff  src//drivermanagement.pas
-693ca299a852a25d3d8820bb0d76dfeb  src//faults.pas
-eff5f36e129bc22770d643173c426cbd  src//gdt.pas
-42d014445ddc0fd4d01c59e690795532  src//idt.pas
-b40f0c2f3ec166a0bf2ebcf8f11f5614  src//irq.pas
-160ca7f01eb779595a5c90174f8d545e  src//isr.pas
-03963c1b5cf5f661df5598de9af51458  src//kernel.pas
-71a3e1a6c21a76ff71e06e0743c0c57f  src//lmemorymanager.pas
-8e6a6f36c53ecd90e4669189aa9312b4  src//pmemorymanager.pas
-4a5f5bf0f2ca7fff89074ad02813091c  src//processloader.pas
-e600e339593a8bb35964e7531c074e7b  src//progmanager.pas
-81d4b5c4a25a1a855d75a88c725b77fe  src//scheduler.pas
-1be263e53e4838f6a06d2ece86400ef2  src//stdio.pas
-940a7ed5808841c6ba344b67965ecba7  src//syslog.pas
-fe1dba288d3a3ab427a9dea0a9f747ae  src//tracer.pas
-4598f9b19f3e3748394b6f1cb8e52043  src//tss.pas
-1a0461e1028921131594edae0a01e608  src//vmemorymanager.pas
-44b09f7af29af7d7fb9711ee0ea5968d  src/driver/bus/PCI.pas
-6e970ae957a3fbc600c8ee6b42634c78  src/driver/bus/usb/EHCI.pas
-181e6c09e33ff59b3eb827085591d19f  src/driver/bus/usb/OHCI.pas
-820defeb214b59d2329881670cbb493f  src/driver/bus/usb/UHCI.pas
-6edd4a1e9c92e092aea1368d9aa2724f  src/driver/bus/usb/USB.pas
-8588f4da48c37646c969b7d51aa28676  src/driver/bus/usb/XHCI.pas
-e064e466ca4a89b2c88df80f75ab0bdc  src/driver/bus/usb/usbcore.pas
-e8aabf9e1ba0c09ede43ed2844802aa0  src/driver/bus/usb/usbhub.pas
-631d06f67ee6af6bfdcec3279967bca0  src/driver/bus/usb/usbtypes.pas
-45f1afa1170ab00ec92e52de18f1de19  src/driver/exp/testdriver.pas
-28e9e1ff635893639c4442656b763d4b  src/driver/hid/keyboard.pas
-25a86d7379eae581d6c69ccbcfb9d722  src/driver/hid/mouse.pas
-84ceeacce04bc9659c73cba838c94cca  src/driver/hid/ps2/ps2_keyboard.pas
-16a706312825c01b6dd13f51aa385c5f  src/driver/hid/ps2/ps2_keyboard_isr.pas
-d272f2bd62399a119e93118a81a74833  src/driver/hid/ps2/ps2_mouse.pas
-57615a202dd2cf26c64601d86bd5e36c  src/driver/hid/usb/usb_keyboard.pas
-da94fe43ff22d2050ccd8eec602aa4b5  src/driver/hid/usb/usb_mouse.pas
-3f6f56b05d141194fa1e48d46d441042  src/driver/include/drivertypes.pas
-8a6f0bf9d2c77d32f2ce5dede4e15d9a  src/driver/interface/serial.pas
-2d3bcfceef94d7e1138ca465bb32aea5  src/driver/net/include/nettypes.pas
-63a3fa928b17ffd31c9ea033f3443b41  src/driver/net/include/netutils.pas
-9aca959358eaa2159421434a4d1855df  src/driver/net/l1/net.pas
-033c08a36b2e99d573e09f1e182937e0  src/driver/net/l2/eth2.pas
-418cdb2657980f11172bb0c70ff4326d  src/driver/net/l3/arp.pas
-e71bc0e877d736be29378ecdfb91c615  src/driver/net/l3/ipv4.pas
-38facb711f1153b80011e1adee8cfba5  src/driver/net/l4/icmp.pas
-fd577fe3e13389f4ffddfe7480935ae1  src/driver/net/l4/tcp.pas
-0cda1d5d8c298b577b49cc8f1ae031bf  src/driver/net/l4/udp.pas
-004a93b3d4cc1efe1172564239eaf795  src/driver/net/l5/dhcp.pas
-1cf47de6c18308e1d140ce47e74bb204  src/driver/netdev/E1000.pas
-bd529497b38ce6bc7697a6dcde6f7fd7  src/driver/storage/MBR.pas
-333c3bb46b3ca14746281b4921a25630  src/driver/storage/iobuffer.pas
-08a8280503120f3a90a9a041bc8b67d3  src/driver/storage/partitiontable.pas
-2bc09f8f54dd10717440b74017bdeb3d  src/driver/storage/storagemanager.pas
-91d10f7ef29d62e633968d72ceeea2b1  src/driver/storage/storagetypes.pas
-76e01e83220c1882dc429129c0ad937b  src/driver/storage/usb_storage.pas
-e42fdff36185dd92498378ab470a4b35  src/driver/storage/vfs.pas
-621d834536a649b3b483016060bbfafc  src/driver/storage/volumemanager.pas
-0e300d4c833bab776e8d91a348a5b60c  src/driver/storage/AHCI/AHCI.pas
-16304358a6278c23a751e31bb464eae5  src/driver/storage/AHCI/AHCITypes.pas
-b5e3bcb914b585a95ac646cfea7d016e  src/driver/storage/Filesystems/asfs.pas
-cb23855b8bad502999656d3121882c74  src/driver/storage/Filesystems/fat32.pas
-9bceba956d3eeffe97e07bdd45a9476f  src/driver/storage/Filesystems/filesystemmanager.pas
-e03d028cc2915c3cb0a8245407c99b7b  src/driver/storage/Filesystems/flatfs.pas
-5bd48e9a8c97ea11edc2789d2ec7902a  src/driver/storage/Filesystems/iso9660.pas
-753c6bbb3c5f84cdd7300330456980d7  src/driver/storage/IDE/IDE.pas
-f5e13673000388c7b8fa980824139163  src/driver/storage/IDE/ata.pas
-5760feea5b9a4ce3fad820b542113c56  src/driver/storage/IDE/atapi.pas
-900eb584e797111c1a54ca86542e71d0  src/driver/storage/IDE/idetypes.pas
-6d9508503dca0543fe932c32ef8267fc  src/driver/timers/RTC.pas
-c025ffabb5bba2272578d04903637d11  src/driver/timers/TMR_0_ISR.pas
-4a7434e5567f738b8545d56558902d9f  src/driver/timers/TMR_1_ISR.pas
-a4459a13e30281d020d0a8730e243b02  src/driver/timers/graphicsrefresh.pas
-4503465b3f62464f25e17e1d1a67e54d  src/driver/timers/usbhotplug.pas
-0434cc7b77429f971d372e89a8a6972d  src/driver/video/desktop.pas
-fef57dc0269caad191652df07da04466  src/driver/video/doublebuffer.pas
-a2c0d973e133f2624599d12fc0ec13f6  src/driver/video/lvgl.pas
-dce8755865885e41c08b062c162b06c9  src/driver/video/uidebug.pas
-20dc95321989d632fa4c39a5faf74733  src/driver/video/vesa.pas
-19c988cfcc36bcc78e73747662672d8f  src/driver/video/vesa16.pas
-f6714e6972770155cf2c72822ab76128  src/driver/video/vesa24.pas
-81e2f271055c2a89dfc8b7f1d19bf509  src/driver/video/vesa32.pas
-8ea870a31f4a9b11b3dcd639a65d9ca8  src/driver/video/vesa8.pas
-542aa1da8f8e9d6e5cb5e0b90a3c9de5  src/driver/video/video.pas
-d499b828752660e1a03272eb4f63eebb  src/driver/video/videotypes.pas
-b9f4c8f07d26c77cb49bd032202775c0  src/driver/video/windows.pas
-aadcb02abac658feec02042bf5ea4ad0  src/fault/ACE.pas
-d530d3094d335ce5ab78475de5b5a39a  src/fault/BPE.pas
-84c5c4e3981b9718403e7fdeb9ef9f7f  src/fault/BTSSE.pas
-01acde61a8f3f27592e9c6d15349348d  src/fault/CFE.pas
-0f5db45e5979949114dba7d9ba205103  src/fault/CSOE.pas
-a7565ac9d1dadc801c16758d2c4e84fe  src/fault/DBGE.pas
-c45fb023b19f7240a911e189c1771c41  src/fault/DBZ.pas
-b5453d37dd18e375a15f50a870c6dea2  src/fault/DFE.pas
-25fdec8dd1c72680acd5a6246ced55eb  src/fault/GPF.pas
-3c7671f86051aa727adcf547f175d338  src/fault/IDOE.pas
-710aadf1e601c74a0cd8563632f35c50  src/fault/IOPE.pas
-85d27bbbe7002ec3e5e73ff9e971844f  src/fault/MCE.pas
-3f81337468d131b0c9896a588f230772  src/fault/NCE.pas
-7548539c52222f081d75841b929d439f  src/fault/NMIE.pas
-f6a105e5873cc14a8a5c5b05298bdfd1  src/fault/OOBE.pas
-8f976f5663439e533347758cc79add39  src/fault/PF.pas
-3870beacc5b322fa63f633f14b1a8320  src/fault/SFE.pas
-522c6788021d8ebf966096311dd1f38d  src/fault/SNPE.pas
-f32ed5dffb58626b7657a24866c6af4e  src/fault/UIE.pas
-b6bfdc59f9962fc257e9adc7b57a3273  src/include/base64.pas
-dee8388dac0ca79ee6aef73469d75f6b  src/include/bios_data_area.pas
-717b8c0a42983f6b8864d5deda4dd532  src/include/color.pas
-1987f262a6053e02080023554d942ae1  src/include/crc.pas
-7f6c812b5d7ae1a8af5ef00d42a4eb1d  src/include/fonts.pas
-bf9fe2883789147e08980ab4c43220f7  src/include/hashmap.pas
-513d59ae08ba6d753a871e1a82b46ed4  src/include/lists.pas
-c5ef14ac60dad5a32ebfa43da153d05c  src/include/md5.pas
-124f12d75de7ade6993ccd2f02b53ad4  src/include/multiboot.pas
-d8beadde6ebb05c8a3e74aae57d61f34  src/include/rand.pas
-cfa50e59e4bd9ea3a5b05c6b1275858d  src/include/strings.pas
-cb254f95c5e09595c90db690bf98794f  src/include/system.pas
-5df11e0052010580d13f1a5ce3acd60f  src/include/targa.pas
-833967cf14697db6da421a4be58e9044  src/include/texture.pas
-635e5a8936a088a244ddfe48cd658a3f  src/include/types.pas
-a770014537fb6c8d70cf4bc3ec325500  src/include/util.pas
-e23b0bef333262860e1f68034331e529  src/isr/ioapic.pas
-63f4a330383220a5cfad0253c09afde3  src/isr/isr_types.pas
-851217f90e902ca65bebb017eeb172e7  src/isr/isrmanager.pas
-027f34dc6d4e67d15cf10d6db5edd514  src/prog/base64_prog.pas
-2e9d0c9db496dafc3c3423deee644c83  src/prog/dhclient.pas
-6c58870722f8b5fd86308123ae8c934b  src/prog/diskcmd.pas
-a0fa8cf89bee89802d506f2cd3a4dad7  src/prog/diskutil.pas
-31c7601131e09b0dfcc427cdb14bffb6  src/prog/edit.pas
-6fff6024194143a6ebbe849f9aff0326  src/prog/inio.pas
-1ff556cd50088e3ee3efa3103fdc6ba0  src/prog/md5sum.pas
-0f0e6dc1b2d1a6e14b2fd103826d1f12  src/prog/partcmd.pas
-0c7c7f62e8bf76fc2eec7f02e7a092b7  src/prog/vbeinfo.pas
-60bf159fa0a3efb34f73fa15a93acd7c  src/prog/volcmd.pas
-88d71b607256928831a33b363a44c006  src/prog/vterminal.pas

compat/lmemorymanager.pas

@@ -0,0 +1,75 @@
+{ Compatibility shim: wasuro references the old unit name 'lmemorymanager'.
+  Since wasuro/ cannot be modified, this unit re-exports the public API of
+  memory.heap so that 'uses lmemorymanager' continues to compile. }
+unit lmemorymanager;
+
+interface
+
+uses
+    memory.heap;
+
+const
+    ALLOC_UNIT        = memory.heap.ALLOC_UNIT;
+    DATA_OFFSET       = memory.heap.DATA_OFFSET;
+    PAGE_SIZE_LMM     = memory.heap.PAGE_SIZE_LMM;
+    TOTAL_UNITS       = memory.heap.TOTAL_UNITS;
+    BITMAP_DWORDS     = memory.heap.BITMAP_DWORDS;
+    SIZE_PREFIX       = memory.heap.SIZE_PREFIX;
+    LARGE_ALLOC_MAGIC = memory.heap.LARGE_ALLOC_MAGIC;
+
+type
+    PHeapPageHeader = memory.heap.PHeapPageHeader;
+    THeapPageHeader = memory.heap.THeapPageHeader;
+
+procedure init;
+function kalloc(size : uint32) : void;
+function klalloc(size : uint32) : void;
+procedure klfree(address : uint32);
+function kpalloc(address : uint32) : void;
+procedure kfree(area : void);
+function lmm_total_free : uint32;
+function lmm_page_count : uint32;
+
+implementation
+
+procedure init;
+begin
+    memory.heap.init;
+end;
+
+function kalloc(size : uint32) : void; inline;
+begin
+    kalloc := memory.heap.kalloc(size);
+end;
+
+function klalloc(size : uint32) : void; inline;
+begin
+    klalloc := memory.heap.klalloc(size);
+end;
+
+procedure klfree(address : uint32); inline;
+begin
+    memory.heap.klfree(address);
+end;
+
+function kpalloc(address : uint32) : void; inline;
+begin
+    kpalloc := memory.heap.kpalloc(address);
+end;
+
+procedure kfree(area : void); inline;
+begin
+    memory.heap.kfree(area);
+end;
+
+function lmm_total_free : uint32; inline;
+begin
+    lmm_total_free := memory.heap.lmm_total_free;
+end;
+
+function lmm_page_count : uint32; inline;
+begin
+    lmm_page_count := memory.heap.lmm_page_count;
+end;
+
+end.

compat/types.pas

@@ -0,0 +1,7 @@
+unit types;
+
+interface
+
+implementation
+
+end.

compile_sources.sh

@@ -1,7 +0,0 @@
-#!/usr/bin/env bash
-echo " "
-echo "======================="
-echo " "
-echo "Compiling FPC Sources..."
-echo " "
-fpc -Aelf -gw -g -gl -n -v0ew -O3 -OpPENTIUM3 -Si -Sc -Sg -Xd -CX -XXs -CfSSE -CfSSE2 -Rintel -Pi386 -Tlinux -FElib/ -Fusrc/* -Fusrc/include/data_structures/* -Fusrc/driver/* -Fusrc/driver/net/* -Fusrc/driver/bus/* -Fusrc/driver/bus/usb/* -Fusrc/driver/hid/* -Fusrc/driver/storage/* -Fusrc/driver/storage/AHCI/* -Fusrc/driver/storage/IDE/* -Fusrc/driver/storage/Filesystems/* -Fusrc/prog/* src/kernel.pas

compile_stub.sh

@@ -1,7 +0,0 @@
-#!/usr/bin/env bash
-echo " "
-echo "======================="
-echo " "
-echo "Compiling Stub..."
-echo " "
-nasm -f elf src/stub/stub.asm -o lib/stub.o

src/app/app.base64.pas

@@ -17,12 +17,12 @@
 	
 	@author(Angus C <[email protected]>)
 }
-unit base64_prog;
+unit app.base64;
 
 interface
 
 uses
-    stdio, util, strings, tracer, base64, lmemorymanager;
+    io.stdio, core.util, arch.x86.util, core.strings, debug.tracer, core.enc.base64, memory.heap;
 
 procedure init();
 
@@ -38,7 +38,7 @@ var
     PSize     : uInt32;
 
 begin
-    tracer.push_trace('base64_prog.run');
+    debug.tracer.push_trace('base64_prog.run');
     if paramCount(Params) > 1 then begin
         encdec := getParam(0, Params);
         if stringEquals(encdec, 'encode') then begin
@@ -58,23 +58,23 @@ begin
             dec(pinput);
             pinput^ := #0;
             result := b64_encode_str(input);
-            stdio.bufWriteStrLn(stdout_buf, result);
+            io.stdio.bufWriteStrLn(stdout_buf, result);
             kfree(void(result));
         end else if stringEquals(encdec, 'decode') then begin
             input := getParam(1, Params);
             result := b64_decode_str(input);
-            stdio.bufWriteStrLn(stdout_buf, result);
+            io.stdio.bufWriteStrLn(stdout_buf, result);
             kfree(void(result));
-        end else stdio.bufWriteStrLn(stderr_buf, 'Usage: base64 <encode/decode> <text>');
+        end else io.stdio.bufWriteStrLn(stderr_buf, 'Usage: core.enc.base64 <encode/decode> <text>');
     end else begin
-        stdio.bufWriteStrLn(stderr_buf, 'Usage: base64 <encode/decode> <text>');
+        io.stdio.bufWriteStrLn(stderr_buf, 'Usage: core.enc.base64 <encode/decode> <text>');
     end;
 end;
 
 procedure init();
 begin
-    tracer.push_trace('base64_prog.init');
-    stdio.registerCommand('BASE64', @Run, 'Perform Base64 Encode/Decode.');
+    debug.tracer.push_trace('base64_prog.init');
+    io.stdio.registerCommand('BASE64', @Run, 'Perform Base64 Encode/Decode.');
 end;
 
 end.

src/app/app.dhclient.pas

@@ -17,12 +17,12 @@
 	
 	@author(Kieron Morris <[email protected]>)
 }
-unit dhclient;
+unit app.dhclient;
 
 interface
 
 uses
-    stdio, util, strings, tracer, dhcp;
+    io.stdio, core.util, arch.x86.util, core.strings, debug.tracer, driver.net.proto.dhcp;
 
 procedure init();
 
@@ -30,14 +30,14 @@ implementation
 
 procedure run(Params : PParamList; stdin_buf, stdout_buf, stderr_buf : POutBuf);
 begin
-    tracer.push_trace('dhclient.run');
+    debug.tracer.push_trace('dhclient.run');
     DHCPDiscover();
 end;
 
 procedure init();
 begin
-    tracer.push_trace('dhclient.init');
-    stdio.registerCommand('DHClient', @Run, 'Run the DHCP configuration utility.');
+    debug.tracer.push_trace('dhclient.init');
+    io.stdio.registerCommand('DHClient', @Run, 'Run the DHCP configuration utility.');
 end;
 
 end.