Update imgfile to dummy

src/imgfile/Makefile

@@ -1,9 +1,10 @@
 CSRCS = $(wildcard *.c)
 EMU_CC ?= riscv64-linux-gnu-gcc
 EMU_OBJCOPY ?= riscv64-linux-gnu-objcopy
+OUT_BIN = dummy
 
 compile:
 	@echo "Compiling..."
-	$(EMU_CC) -march=rv64g -ffreestanding -nostdlib -static -Wl,-Ttext=0 -O2 -o prog $(CSRCS)
-	$(EMU_OBJCOPY) -O binary --only-section=.text prog prog.bin
+	$(EMU_CC) -march=rv64g -ffreestanding -nostdlib -static -Wl,-Ttext=0x80000000 -O2 -o $(OUT_BIN) $(CSRCS)
+	$(EMU_OBJCOPY) -O binary --only-section=.text $(OUT_BIN) $(OUT_BIN).bin
 	@echo "Compilation complete."

src/imgfile/dummy.c

@@ -0,0 +1,10 @@
+static void ebreak(long arg0, long arg1) {
+  asm volatile("addi a0, x0, %0;"
+               "addi a1, x0, %1;"
+               "ebreak" : : "i"(arg0), "i"(arg1));
+}
+static void halt(int code) { ebreak(1, code); while (1); }
+int main() {
+	halt(0);
+	return 0;
+}

src/mem.zig

@@ -17,6 +17,7 @@ pub const MEM = struct {
     pub var memory = std.mem.zeroes([size]u8);
 
     pub fn paddr(addr: u64) u64 {
+        std.debug.print("addr:{x}\n", .{addr});
         return addr - base;
     }
 
@@ -35,7 +36,7 @@ pub const MEM = struct {
     }
 };
 
-const filePath = "imgfile/dummy-riscv64-npc.bin";
+const filePath = "imgfile/dummy.bin";
 
 pub fn initMem() void {
     const memSlice: []u8 = MEM.memory[0..];