- added testbench for de-nano

- added workaround for DCache_inv_all() for de-nano

git-svn-id: http://moon:8086/svn/mips@124 a8ebac50-d88d-4704-bea3-6648445a41b3

src/libsys/Makefile

@@ -31,8 +31,8 @@ OBJDUMP=mips-elf-objdump
 OBJCOPY=mips-elf-objcopy
 FLASHGEN=flashgen
 
-OBJS-ml402=$(addprefix $(BUILD_DIR)/, libsys.o xcpt.o syscalls.o cop0.o irq.o mips_dbg.o mips_dis.o mips_ps2.o mips_gfx.o console.o screen.o uart.o board.o gpio.o)
-OBJS-denano=$(addprefix $(BUILD_DIR)/, libsys.o xcpt.o syscalls.o cop0.o irq.o mips_dbg.o mips_dis.o console.o uart.o board.o gdb_stub.o)
+OBJS-ml402=$(addprefix $(BUILD_DIR)/, libsys.o xcpt.o syscalls.o cop0.o irq.o mips_dbg.o mips_dis.o mips_ps2.o mips_gfx.o console.o screen.o uart.o board.o gpio.o gdb_stub.o)
+OBJS-denano=$(addprefix $(BUILD_DIR)/, libsys.o xcpt.o syscalls.o cop0.o irq.o mips_dbg.o mips_dis.o console.o uart.o board.o gpio.o gdb_stub.o)
 
 all: $(BUILD_DIR) $(BUILD_DIR)/libsys.a
 	

src/libsys/cop0.c

@@ -144,6 +144,7 @@ void DCACHE_invalidate_at(uint32_t* pPtr)
 	(
 		"mtc0   %[pPtr], $31\n"
 		"cop0	35\n"
+		"nop"				// fix needed: don't work without nop on de-nano
 		:
 		: [pPtr] "r" (pPtr)
 	);