diff --git a/.github/workflows/ccpp.yml b/.github/workflows/ccpp.yml
new file mode 100644
index 0000000..5016564
--- /dev/null
+++ b/.github/workflows/ccpp.yml
@@ -0,0 +1,16 @@
+name: bios-build
+
+on: [push]
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    steps:
+    - uses: actions/checkout@v2
+    - name: make
+      run: make
+    - name: Upload bios.bin
+      uses: actions/upload-artifact@v1
+      with:
+        name: bios.bin
+        path: build/bios.bin
diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..188c59c
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1,5 @@
+build
+*.o
+*.d
+*.bin
+*.elf
diff --git a/Makefile b/Makefile
new file mode 100644
index 0000000..2b6eebb
--- /dev/null
+++ b/Makefile
@@ -0,0 +1,80 @@
+CC	?= $(CROSS)gcc
+AS	?= $(CROSS)gcc
+OBJCOPY	?= $(CROSS)objcopy
+O	?= build
+
+all: $O/bios.bin
+ROMSIZE = 65536
+
+$O: ; mkdir -p $@
+
+CFLAGS	= \
+	-W \
+	-Wall \
+	-m32 \
+	-march=i386 \
+	-mregparm=3 \
+	-fno-stack-protector \
+	-fno-delete-null-pointer-checks \
+	-ffreestanding \
+	-mstringop-strategy=rep_byte \
+	-minline-all-stringops \
+	-fno-pic \
+	-Iinclude \
+	-MT $@ \
+	-MMD -MP \
+	-MF $O/$*.d \
+
+ASFLAGS = $(CFLAGS)
+
+LDFLAGS	= \
+	-nostdlib \
+	-m32 \
+	-Wl,--build-id=none \
+	-Wl,-Tflat.lds \
+
+OBJS = \
+	code16.o \
+	code32seg.o \
+	cstart.o \
+	entry.o \
+	fw_cfg.o \
+	hwsetup.o \
+	linuxboot.o \
+	main.o \
+	malloc.o \
+	mptable.o \
+	pci.o \
+	printf.o \
+	string.o \
+	smbios.o \
+	tables.o \
+
+$O/bios.elf: $(addprefix $O/,$(OBJS))
+	$(CC) $(LDFLAGS) -o $@ $^
+
+$O/%.bin: $O/%.elf
+	$(OBJCOPY) \
+		-O binary \
+		-j .text \
+		-j .rodata \
+		-j .data \
+		-j .bss \
+		-j .init \
+		$< \
+		"$@.tmp"
+	@if [ `stat -c '%s' "$@.tmp"` != $(ROMSIZE) ]; then \
+		echo >&2 '$@ != $(ROMSIZE) bytes!' ; \
+		exit 1 ; \
+	fi
+	mv "$@.tmp" "$@"
+
+$O/%.o: %.c | $O
+	$(CC) $(CFLAGS) -c -o $@ $<
+$O/%.o: %.S | $O
+	$(CC) $(ASFLAGS) -c -o $@ $<
+
+clean:
+	$(RM) $O/*.o $O/bios.bin $O/bios.bin.elf $O/*.d
+
+-include $O/*.d
diff --git a/README b/README.md
similarity index 83%
rename from README
rename to README.md
index c913357..88e340b 100644
--- a/README
+++ b/README.md
@@ -1,3 +1,5 @@
+[![Build status](../../workflows/bios-build/badge.svg)](../../actions?query=workflow%3Abios-build)
+
 A simple x86 firmware that can boot Linux.
 
 Most of QEMU's startup time is spent:
@@ -5,6 +7,7 @@ Most of QEMU's startup time is spent:
 * in the dynamic linker.  This can be reduced by 150 ms simply by
   compiling a stripped down QEMU:
 
+```
     ./configure --disable-libssh2 --disable-tcmalloc --disable-glusterfs \
         --disable-seccomp --disable-{bzip2,snappy,lzo} --disable-usb-redir \
         --disable-libusb --disable-smartcard-nss --disable-libnfs  \
@@ -14,13 +17,14 @@ Most of QEMU's startup time is spent:
         --disable-fdt --disable-curl --disable-curses --disable-sdl \
         --disable-gtk  --disable-tpm --disable-vte --disable-vnc  \
         --disable-xen --disable-opengl --target-list=x86_64-softmmu
+```
 
 * in the BIOS.  qboot saves another 150 ms.
 
-* until QEMU 2.7+, in fw_cfg.  qboot uses the DMA interface which is pretty
+* until QEMU 2.7+, in `fw_cfg`.  qboot uses the DMA interface which is pretty
   much instantaneous.
 
-Compile qboot
+Compile `qboot`
 =============
 
 Clone the source:
@@ -30,9 +34,9 @@ Clone the source:
 Compile the qboot firmware (you may need to install the relevant build
 time dependancies):
 
-    $ meson build && ninja -C build
+    $ make
 
-The result will be a 64K file named bios.bin under the build/ directory.
+The result will be a 64K file named `build/bios.bin`.
 
 Usage
 =====
diff --git a/meson.build b/meson.build
deleted file mode 100644
index ce291a3..0000000
--- a/meson.build
+++ /dev/null
@@ -1,52 +0,0 @@
-project('qboot', 'c')
-
-cc = meson.get_compiler('c')
-objcopy = find_program('objcopy')
-
-c_args = [
-  '-m32',
-  '-march=i386',
-  '-mregparm=3',
-  '-fno-stack-protector',
-  '-fno-delete-null-pointer-checks',
-  '-ffreestanding',
-  '-mstringop-strategy=rep_byte',
-  '-minline-all-stringops',
-  '-fno-pic',
-]
-
-link_args = ['-nostdlib', '-m32']
-link_args += cc.get_supported_link_arguments('-Wl,--build-id=none')
-link_args += '-Wl,-T' + meson.current_source_dir() / 'flat.lds'
-
-elf = executable(
-  'bios.bin.elf',
-  files(
-    'code16.c',
-    'code32seg.c',
-    'cstart.S',
-    'entry.S',
-    'fw_cfg.c',
-    'hwsetup.c',
-    'linuxboot.c',
-    'main.c',
-    'malloc.c',
-    'mptable.c',
-    'pci.c',
-    'printf.c',
-    'string.c',
-    'smbios.c',
-    'tables.c',
-  ),
-  c_args: c_args,
-  include_directories: include_directories('include'),
-  link_args: link_args,
-)
-
-bin = custom_target(
-  'bios.bin',
-  output: 'bios.bin',
-  input: elf,
-  command: [objcopy, '-O', 'binary', '@INPUT@', '@OUTPUT@'],
-  build_by_default: true,
-)