m4 test

m4-bochs/readme.md

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+mkdir ~/bochs-m4 && cd ~/bochs-m4 && clear
+
+# =======================================================================
+# BOOTLOADER hello.asm (16-bit real-mode, BIOS int 0x10)
+# =======================================================================
+cat > hello.asm << 'EOF'
+[BITS 16]
+[ORG 0x7C00]
+
+start:
+    xor ax, ax           ; Zero segment registers
+    mov ds, ax
+    mov es, ax
+    mov si, msg          ; SI = pointer na zprávu
+
+print_loop:
+    lodsb                ; AL = [SI++]
+    cmp al, 0            ; konec stringu?
+    je hlt_loop
+    mov ah, 0x0E         ; Teletype BIOS funkce
+    int 0x10             ; Vypis znak
+    jmp print_loop
+
+hlt_loop:
+    hlt                  ; Zastav CPU
+    jmp hlt_loop
+
+msg: db 'Hello M4 Bochs v2026!', 0
+times 510-($-$$) db 0
+dw 0xAA55                 ; Boot signature (povinné!)
+EOF
+
+# =======================================================================
+# KOMPILACE + 1.44MB FLOPPY IMAGE
+# =======================================================================
+nasm -f bin hello.asm -o hello.bin
+dd if=/dev/zero of=boot.img bs=512 count=2880    # Plný floppy
+dd if=hello.bin of=boot.img bs=512 count=1 conv=notrunc
+echo "✅ Boot signature: $(hexdump -C boot.img | tail -1)"
+
+# =======================================================================
+# BOCHS 3.0 CESTY (Homebrew Apple Silicon M4)
+# =======================================================================
+VGA_PATH="/opt/homebrew/Cellar/bochs/3.0/share/bochs/VGABIOS-lgpl-latest.bin"
+BIOS_PATH="/opt/homebrew/Cellar/bochs/3.0/share/bochs/BIOS-bochs-latest"
+echo "✅ VGABIOS: $VGA_PATH"
+echo "✅ BIOS:   $BIOS_PATH"
+ls -la "$VGA_PATH" "$BIOS_PATH"
+
+# =======================================================================
+# BOCHSRC CONFIG (SDL2 GUI + rychlost)
+# =======================================================================
+cat > bochsrc << EOF
+# Memory + CPU
+megs: 32
+cpu: count=1, ips=20000000
+
+# Display (SDL2 GUI okno)
+display_library: sdl2
+
+# ROM images (Homebrew M4 paths)
+romimage: file="$BIOS_PATH"
+vgaromimage: file="$VGA_PATH"
+
+# Boot floppy
+boot: floppy
+floppya: 1_44=boot.img, status=inserted
+
+# Keyboard + log
+keyboard: type=mf
+log: bochsout.txt
+EOF
+
+echo "✅ VŠE PŘIPRAVENO! 🚀"
+ls -la *.asm *.bin *.img bochsrc
+echo "START: bochs -f bochsrc -q"
+