preserve r9 for apple

cpu/sh2/compiler.c

@@ -270,6 +270,8 @@ typedef struct {
 #ifdef __arm__
 #include "../drc/emit_arm.c"
 
+#ifndef __MACH__
+
 static const int reg_map_g2h[] = {
    4,  5,  6,  7,
    8, -1, -1, -1,
@@ -279,6 +281,20 @@ static const int reg_map_g2h[] = {
   -1, -1, -1, -1, // SHR_GBR, SHR_VBR, SHR_MACH, SHR_MACL,
 };
 
+#else
+
+// no r9..
+static const int reg_map_g2h[] = {
+   4,  5,  6,  7,
+  -1, -1, -1, -1,
+  -1, -1, -1, -1,
+  -1, -1, -1,  8, // r12 .. sp
+  -1, -1, -1, 10, // SHR_PC,  SHR_PPC, SHR_PR,   SHR_SR,
+  -1, -1, -1, -1, // SHR_GBR, SHR_VBR, SHR_MACH, SHR_MACL,
+};
+
+#endif
+
 static temp_reg_t reg_temp[] = {
   {  0, },
   {  1, },

pico/carthw/svp/stub_arm.S

@@ -12,14 +12,6 @@
 .text
 .align 2
 
-@ externals
-#define cache_flush_d_inval_i ESYM(cache_flush_d_inval_i)
-#define ssp_get_iram_context  ESYM(ssp_get_iram_context)
-#define ssp_pm_read           ESYM(ssp_pm_read)
-#define ssp_pm_write          ESYM(ssp_pm_write)
-#define ssp_translate_block   ESYM(ssp_translate_block)
-#define tr_unhandled          ESYM(tr_unhandled)
-
 @       SSP_GR0, SSP_X,     SSP_Y,   SSP_A,
 @       SSP_ST,  SSP_STACK, SSP_PC,  SSP_P,
 @       SSP_PM0, SSP_PM1,   SSP_PM2, SSP_XST,
@@ -613,4 +605,23 @@ hle_07_036_ending2:
     mov     r0, #0x87
     b       ssp_drc_next	@ let the dispatcher finish this
 
+
+@ ios stuff - preserving r9 on external calls
+#ifdef __MACH__
+
+#define APPLE_WRAP(f) \
+  f:; \
+  push {r9,lr}; \
+  bl _##f; \
+  pop {r9,pc}
+
+APPLE_WRAP(cache_flush_d_inval_i)
+APPLE_WRAP(ssp_get_iram_context)
+APPLE_WRAP(ssp_pm_read)
+APPLE_WRAP(ssp_pm_write)
+APPLE_WRAP(ssp_translate_block)
+APPLE_WRAP(tr_unhandled)
+
+#endif
+
 @ vim:filetype=armasm