hwstub: major improvement in the stub and the tools

Fix the stub in many way to correctly detect the STMP family and
act upon that. Drop some unused commands and bump version.
Rewrite the tool to allows scripting in lua and load the register
description from an XML file using the regtools. Introduce a new
tool to load and run code using the hwstub (either binary format
or Rockbox additive scramble format). Also switch to an optimise
version of the memcpy/move/set functions to correctly handle
alignement issue (like writing a full word/half-word when
possible for registers which is crucial)

Change-Id: Id1d5cfe0b1b47e8b43900d32c5cd6eafae6414f6

1 files changed, 26 insertions, 3 deletions

diff --git a/utils/hwstub/stmp/config.h b/utils/hwstub/stmp/config.h
index 6bd995e147..9d6de07f33 100644
--- a/utils/hwstub/stmp/config.h
+++ b/utils/hwstub/stmp/config.h
@@ -18,8 +18,8 @@
  * KIND, either express or implied.
  *
  ****************************************************************************/
-#ifndef __HWEMUL_CONFIG__
-#define __HWEMUL_CONFIG__
+#ifndef __HWSTUB_CONFIG__
+#define __HWSTUB_CONFIG__
 
 #define MEMORYSIZE      0
 #define STACK_SIZE      0x1000
@@ -30,4 +30,27 @@
 #define DRAM_ORIG       0x40000000
 #define DRAM_SIZE       (MEMORYSIZE * 0x100000)
 
-#endif /* __HWEMUL_CONFIG__ */
+#define CPU_ARM
+#define ARM_ARCH    5
+
+#if defined(CPU_ARM) && defined(__ASSEMBLER__)
+/* ARMv4T doesn't switch the T bit when popping pc directly, we must use BX */
+.macro ldmpc cond="", order="ia", regs
+#if ARM_ARCH == 4 && defined(USE_THUMB)
+    ldm\cond\order sp!, { \regs, lr }
+    bx\cond lr
+#else
+    ldm\cond\order sp!, { \regs, pc }
+#endif
+.endm
+.macro ldrpc cond=""
+#if ARM_ARCH == 4 && defined(USE_THUMB)
+    ldr\cond lr, [sp], #4
+    bx\cond  lr
+#else
+    ldr\cond pc, [sp], #4
+#endif
+.endm
+#endif
+
+#endif /* __HWSTUB_CONFIG__ */