32x: drc: ARM implementation, start unification with SVP (untested)

git-svn-id: file:///home/notaz/opt/svn/PicoDrive/platform@821 be3aeb3a-fb24-0410-a615-afba39da0efa

linux/Makefile

@@ -9,6 +9,10 @@ drc_debug = 1
 
 -include Makefile.local
 
+ifndef ARCH
+ARCH = x86
+endif
+
 ifeq "$(profile)" "1"
 CFLAGS += -O3 -Wall
 CFLAGS += -ftracer -fstrength-reduce -funroll-loops -fomit-frame-pointer -fstrict-aliasing -ffast-math
@@ -18,7 +22,15 @@ CFLAGS += -ggdb -Wall -falign-functions=2
 endif
 DEFINES = _UNZIP_SUPPORT IO_STATS IN_EVDEV
 CFLAGS += -I../.. -I.
-LDFLAGS += -lX11 -lpthread
+LDFLAGS += -lpthread
+ifeq "$(ARCH)" "arm"
+CFLAGS += -mcpu=arm920t
+DEFINES += ARM
+else
+LDFLAGS += -lX11
+endif
+
+CC = $(CROSS)gcc
 
 # frontend
 OBJS += platform/gp2x/emu.o blit.o in_evdev.o plat.o sndout_oss.o gp2x.o log_io.o
@@ -50,6 +62,9 @@ OBJS += pico/sound/sound.o pico/sound/sn76496.o pico/sound/ym2612.o pico/sound/m
 # Pico - carthw
 OBJS += pico/carthw/carthw.o pico/carthw/svp/svp.o pico/carthw/svp/memory.o \
 	pico/carthw/svp/ssp16.o pico/carthw/svp/compiler.o
+ifeq "$(ARCH)" "arm"
+OBJS += pico/carthw/svp/stub_arm.o
+endif
 # zlib
 OBJS += zlib/gzio.o zlib/inffast.o zlib/inflate.o zlib/inftrees.o zlib/trees.o \
 	zlib/deflate.o zlib/crc32.o zlib/adler32.o zlib/zutil.o zlib/compress.o zlib/uncompr.o
@@ -79,7 +94,7 @@ ifeq "$(use_sh2drc)" "1"
 DEFINES += DRC_SH2 DRC_TMP
 OBJS += cpu/sh2/mame/sh2pico.o
 OBJS += cpu/sh2/compiler.o
-OBJS += cpu/sh2/stub_x86.o
+OBJS += cpu/sh2/stub_$(ARCH).o
 ifeq "$(drc_debug)" "1"
 DEFINES += DRC_DEBUG=1
 OBJS += cpu/sh2/mame/sh2dasm.o
@@ -100,6 +115,8 @@ endif
 CFLAGS += $(addprefix -D,$(DEFINES))
 
 vpath %.c = ../..
+vpath %.s = ../..
+vpath %.S = ../..
 vpath %.asm = ../..
 
 DIRS = platform platform/gp2x platform/common pico pico/cd pico/pico pico/sound pico/carthw/svp \
@@ -122,7 +139,7 @@ mkdirs:
 
 include ../common/revision.mak
 
-pico/carthw/svp/compiler.o : ../../pico/carthw/svp/gen_arm.c
+pico/carthw/svp/compiler.o : ../../cpu/drc/emit_arm.c
 pico/pico.o pico/cd/pico.o : ../../pico/pico_cmn.c ../../pico/pico_int.h
 pico/memory.o pico/cd/memory.o : ../../pico/pico_int.h ../../pico/memory.h
 

linux/gp2x.c

@@ -33,6 +33,9 @@ int crashed_940 = 0;
 int default_cpu_clock = 123;
 void *gp2x_memregs = NULL;
 
+/* ifndef is for qemu build without video out */
+#ifndef ARM
+
 /* faking GP2X pad */
 enum  { GP2X_UP=0x1,       GP2X_LEFT=0x4,       GP2X_DOWN=0x10,  GP2X_RIGHT=0x40,
         GP2X_START=1<<8,   GP2X_SELECT=1<<9,    GP2X_L=1<<10,    GP2X_R=1<<11,
@@ -252,6 +255,7 @@ static void xlib_init(void)
 	sem_wait(&xlib_sem);
 	sem_destroy(&xlib_sem);
 }
+#endif // !ARM
 
 /* --- */
 
@@ -272,6 +276,7 @@ static void realloc_screen(void)
 /* gp2x/emu.c stuff, most to be rm'd */
 static void gp2x_video_flip_(void)
 {
+#ifndef ARM
 	unsigned int *image;
 	int pixel_count, i;
 
@@ -311,6 +316,7 @@ static void gp2x_video_flip_(void)
 		realloc_screen();
 		ximage_realloc(xlib_display, DefaultVisual(xlib_display, 0));
 	}
+#endif
 }
 
 static void gp2x_video_changemode_ll_(int bpp)
@@ -405,7 +411,9 @@ void plat_init(void)
 	// snd
 	sndout_oss_init();
 
+#ifndef ARM
 	xlib_init();
+#endif
 }
 
 void plat_finish(void)
@@ -459,6 +467,10 @@ void mp3_update(int *buffer, int length, int stereo)
 {
 }
 
+void cache_flush_d_inval_i()
+{
+}
+
 /* lprintf */
 void lprintf(const char *fmt, ...)
 {

linux/host_dasm.c

@@ -11,6 +11,20 @@ extern char **g_argv;
 
 static struct disassemble_info di;
 
+#ifdef ARM
+#define print_insn_func print_insn_little_arm
+#define BFD_ARCH bfd_arch_arm
+#define BFD_MACH bfd_mach_arm_4T
+#else
+#define print_insn_func print_insn_i386_intel
+#define BFD_ARCH bfd_arch_i386
+#define BFD_MACH bfd_mach_i386_i386_intel_syntax
+#endif
+
+/* hacks for ARM */
+int floatformat_to_double;
+int floatformat_ieee_single_little;
+
 /* symbols */
 static asymbol **symbols;
 static long symcount;
@@ -141,8 +155,8 @@ static void host_dasm_init(void)
   di.print_address_func = dis_asm_print_address;
 //  di.symbol_at_address_func = dis_asm_symbol_at_address;
   di.read_memory_func = dis_asm_read_memory;
-  di.arch = bfd_arch_i386;
+  di.arch = BFD_ARCH;
-  di.mach = bfd_mach_i386_i386_intel_syntax;
+  di.mach = BFD_MACH;
   di.endian = BFD_ENDIAN_LITTLE;
   disassemble_init_for_target(&di);
 }
@@ -160,7 +174,7 @@ void host_dasm(void *addr, int len)
   vma_end = vma + len;
   while (vma < vma_end) {
     printf("  %p ", (void *)(long)vma);
-    vma += print_insn_i386_intel(vma, &di);
+    vma += print_insn_func(vma, &di);
     printf("\n");
   }
 }