progress: new assembler works, instruction set fully implemented with call/ret and push/pop, bf.dsa works which means the dsa assembly language works reliably. still a few bugs to fix. might be able to squeeze out a tiny bit more performance

2026-03-09 03:24:20 +00:00
parent fc972b9b7b
commit e01a9f2808
63 changed files with 4975 additions and 1579 deletions
@@ -0,0 +1,7 @@
+LoadConfig(
+    // defined as the bootloader in dsa.mmap.ron
+    start_address: 0x1000,
+
+    // maximum allowed bootloader size (as to not overlap MMIO)
+    max_size: 0x4000,
+)
@@ -0,0 +1,7 @@
+[
+    IoMapping(
+        device: Display,
+        base: 0x0000_0000,
+        size: 0x0000_07D0, // 2000 bytes (80x25)
+    ),
+],
@@ -0,0 +1,41 @@
+MemoryMap(
+    table_addr: 0x1000,
+    regions: [
+        // 0000-1000 = reserved
+        Region(
+            base: 0x0,
+            size: 0x1000,
+            region_type: Reserved
+        ),
+        // 1000-4000 = bootloader
+        Region(
+            base: 0x1000,
+            size: 0x3000,
+            region_type: Bootloader
+        ),
+        // 5000-0FFFFFFF = MMIO
+        Region(
+            base: 0x5000,
+            size: 0x0FFF_FFFF,
+            region_type: MMIO
+        ),
+        // 10000000-BFFFFFFF = userspace
+        Region(
+            base: 0x1000_0000,
+            size: 0xBFFF_FFFF,
+            region_type: Usable
+        ),
+        // C0000000-C0FFFFFF = kernel page tables
+        Region(
+            base: 0xC000_0000,
+            size: 0x100_0000,
+            region_type: KernelTables
+        ),
+        // C1000000-FFFFFFFF = kernel
+        Region(
+            base: 0xC100_0000,
+            size: 0x3EFF_FFFF,
+            region_type: Kernel
+        )
+    ]
+)