* sh-tdep.h (sh_show_regs): Add FRAME parameter.

	* sh-tdep.c (sh_show_regs): Likewise.
	(sh_show_regs_command): Pass current frame to sh_show_regs routine.
	(sh_generic_show_regs): Add FRAME parameter.  Use register
	values from that frame instead of calling read_register.
	(sh3_show_regs, sh2e_show_regs, sh2a_show_regs, sh2a_nofpu_show_regs,
	sh3e_show_regs, sh3_dsp_show_regs, sh4_show_regs, sh4_nofpu_show_regs,
	sh_dsp_show_regs): Likewise.
	* sh64-tdep.c (sh64_show_media_regs, sh64_show_compact_regs,
	sh64_show_regs): Likewise.

1 files changed, 553 insertions, 429 deletions

diff --git a/gdb/sh-tdep.c b/gdb/sh-tdep.c
index 0d2b5ea..19f5a40 100644
--- a/gdb/sh-tdep.c
+++ b/gdb/sh-tdep.c
@@ -56,7 +56,7 @@
 /* registers numbers shared with the simulator */
 #include "gdb/sim-sh.h"
 
-static void (*sh_show_regs) (void);
+static void (*sh_show_regs) (struct frame_info *);
 
 #define SH_NUM_REGS 67
 
@@ -1332,501 +1332,625 @@ sh_return_value_fpu (struct gdbarch *gdbarch, struct type *type,
 /* Print the registers in a form similar to the E7000 */
 
 static void
-sh_generic_show_regs (void)
+sh_generic_show_regs (struct frame_info *frame)
 {
-  printf_filtered ("      PC %s       SR %08lx       PR %08lx     MACH %08lx\n",
-		   paddr (read_register (PC_REGNUM)),
-		   (long) read_register (SR_REGNUM),
-		   (long) read_register (PR_REGNUM),
-		   (long) read_register (MACH_REGNUM));
+  printf_filtered
+    ("      PC %s       SR %08lx       PR %08lx     MACH %08lx\n",
+     paddr (get_frame_register_unsigned (frame, PC_REGNUM)),
+     (long) get_frame_register_unsigned (frame, SR_REGNUM),
+     (long) get_frame_register_unsigned (frame, PR_REGNUM),
+     (long) get_frame_register_unsigned (frame, MACH_REGNUM));
 
-  printf_filtered (
-	"     GBR %08lx      VBR %08lx                       MACL %08lx\n",
-		   (long) read_register (GBR_REGNUM),
-		   (long) read_register (VBR_REGNUM),
-		   (long) read_register (MACL_REGNUM));
+  printf_filtered
+    ("     GBR %08lx      VBR %08lx                       MACL %08lx\n",
+     (long) get_frame_register_unsigned (frame, GBR_REGNUM),
+     (long) get_frame_register_unsigned (frame, VBR_REGNUM),
+     (long) get_frame_register_unsigned (frame, MACL_REGNUM));
 
   printf_filtered
     ("R0-R7    %08lx %08lx %08lx %08lx %08lx %08lx %08lx %08lx\n",
-     (long) read_register (0), (long) read_register (1),
-     (long) read_register (2), (long) read_register (3),
-     (long) read_register (4), (long) read_register (5),
-     (long) read_register (6), (long) read_register (7));
-  printf_filtered ("R8-R15   %08lx %08lx %08lx %08lx %08lx %08lx %08lx %08lx\n",
-		   (long) read_register (8), (long) read_register (9),
-		   (long) read_register (10), (long) read_register (11),
-		   (long) read_register (12), (long) read_register (13),
-		   (long) read_register (14), (long) read_register (15));
+     (long) get_frame_register_unsigned (frame, 0),
+     (long) get_frame_register_unsigned (frame, 1),
+     (long) get_frame_register_unsigned (frame, 2),
+     (long) get_frame_register_unsigned (frame, 3),
+     (long) get_frame_register_unsigned (frame, 4),
+     (long) get_frame_register_unsigned (frame, 5),
+     (long) get_frame_register_unsigned (frame, 6),
+     (long) get_frame_register_unsigned (frame, 7));
+  printf_filtered
+    ("R8-R15   %08lx %08lx %08lx %08lx %08lx %08lx %08lx %08lx\n",
+     (long) get_frame_register_unsigned (frame, 8),
+     (long) get_frame_register_unsigned (frame, 9),
+     (long) get_frame_register_unsigned (frame, 10),
+     (long) get_frame_register_unsigned (frame, 11),
+     (long) get_frame_register_unsigned (frame, 12),
+     (long) get_frame_register_unsigned (frame, 13),
+     (long) get_frame_register_unsigned (frame, 14),
+     (long) get_frame_register_unsigned (frame, 15));
 }
 
 static void
-sh3_show_regs (void)
+sh3_show_regs (struct frame_info *frame)
 {
-  printf_filtered ("      PC %s       SR %08lx       PR %08lx     MACH %08lx\n",
-		   paddr (read_register (PC_REGNUM)),
-		   (long) read_register (SR_REGNUM),
-		   (long) read_register (PR_REGNUM),
-		   (long) read_register (MACH_REGNUM));
+  printf_filtered
+    ("      PC %s       SR %08lx       PR %08lx     MACH %08lx\n",
+     paddr (get_frame_register_unsigned (frame, PC_REGNUM)),
+     (long) get_frame_register_unsigned (frame, SR_REGNUM),
+     (long) get_frame_register_unsigned (frame, PR_REGNUM),
+     (long) get_frame_register_unsigned (frame, MACH_REGNUM));
 
-  printf_filtered (
-	"     GBR %08lx      VBR %08lx                       MACL %08lx\n",
-		   (long) read_register (GBR_REGNUM),
-		   (long) read_register (VBR_REGNUM),
-		   (long) read_register (MACL_REGNUM));
-  printf_filtered ("     SSR %08lx      SPC %08lx\n",
-		   (long) read_register (SSR_REGNUM),
-		   (long) read_register (SPC_REGNUM));
+  printf_filtered
+    ("     GBR %08lx      VBR %08lx                       MACL %08lx\n",
+     (long) get_frame_register_unsigned (frame, GBR_REGNUM),
+     (long) get_frame_register_unsigned (frame, VBR_REGNUM),
+     (long) get_frame_register_unsigned (frame, MACL_REGNUM));
+  printf_filtered
+    ("     SSR %08lx      SPC %08lx\n",
+     (long) get_frame_register_unsigned (frame, SSR_REGNUM),
+     (long) get_frame_register_unsigned (frame, SPC_REGNUM));
 
   printf_filtered
     ("R0-R7    %08lx %08lx %08lx %08lx %08lx %08lx %08lx %08lx\n",
-     (long) read_register (0), (long) read_register (1),
-     (long) read_register (2), (long) read_register (3),
-     (long) read_register (4), (long) read_register (5),
-     (long) read_register (6), (long) read_register (7));
-  printf_filtered ("R8-R15   %08lx %08lx %08lx %08lx %08lx %08lx %08lx %08lx\n",
-		   (long) read_register (8), (long) read_register (9),
-		   (long) read_register (10), (long) read_register (11),
-		   (long) read_register (12), (long) read_register (13),
-		   (long) read_register (14), (long) read_register (15));
+     (long) get_frame_register_unsigned (frame, 0),
+     (long) get_frame_register_unsigned (frame, 1),
+     (long) get_frame_register_unsigned (frame, 2),
+     (long) get_frame_register_unsigned (frame, 3),
+     (long) get_frame_register_unsigned (frame, 4),
+     (long) get_frame_register_unsigned (frame, 5),
+     (long) get_frame_register_unsigned (frame, 6),
+     (long) get_frame_register_unsigned (frame, 7));
+  printf_filtered
+    ("R8-R15   %08lx %08lx %08lx %08lx %08lx %08lx %08lx %08lx\n",
+     (long) get_frame_register_unsigned (frame, 8),
+     (long) get_frame_register_unsigned (frame, 9),
+     (long) get_frame_register_unsigned (frame, 10),
+     (long) get_frame_register_unsigned (frame, 11),
+     (long) get_frame_register_unsigned (frame, 12),
+     (long) get_frame_register_unsigned (frame, 13),
+     (long) get_frame_register_unsigned (frame, 14),
+     (long) get_frame_register_unsigned (frame, 15));
 }
 
-
 static void
-sh2e_show_regs (void)
-{
-  printf_filtered ("      PC %s       SR %08lx       PR %08lx     MACH %08lx\n",
-		   paddr (read_register (PC_REGNUM)),
-		   (long) read_register (SR_REGNUM),
-		   (long) read_register (PR_REGNUM),
-		   (long) read_register (MACH_REGNUM));
-
-  printf_filtered (
-	"     GBR %08lx      VBR %08lx                       MACL %08lx\n",
-		   (long) read_register (GBR_REGNUM),
-		   (long) read_register (VBR_REGNUM),
-		   (long) read_register (MACL_REGNUM));
-  printf_filtered (
-	"     SSR %08lx      SPC %08lx     FPUL %08lx    FPSCR %08lx\n",
-		   (long) read_register (SSR_REGNUM),
-		   (long) read_register (SPC_REGNUM),
-		   (long) read_register (FPUL_REGNUM),
-		   (long) read_register (FPSCR_REGNUM));
+sh2e_show_regs (struct frame_info *frame)
+{
+  printf_filtered
+    ("      PC %s       SR %08lx       PR %08lx     MACH %08lx\n",
+     paddr (get_frame_register_unsigned (frame, PC_REGNUM)),
+     (long) get_frame_register_unsigned (frame, SR_REGNUM),
+     (long) get_frame_register_unsigned (frame, PR_REGNUM),
+     (long) get_frame_register_unsigned (frame, MACH_REGNUM));
+
+  printf_filtered
+    ("     GBR %08lx      VBR %08lx                       MACL %08lx\n",
+     (long) get_frame_register_unsigned (frame, GBR_REGNUM),
+     (long) get_frame_register_unsigned (frame, VBR_REGNUM),
+     (long) get_frame_register_unsigned (frame, MACL_REGNUM));
+  printf_filtered
+    ("     SSR %08lx      SPC %08lx     FPUL %08lx    FPSCR %08lx\n",
+     (long) get_frame_register_unsigned (frame, SSR_REGNUM),
+     (long) get_frame_register_unsigned (frame, SPC_REGNUM),
+     (long) get_frame_register_unsigned (frame, FPUL_REGNUM),
+     (long) get_frame_register_unsigned (frame, FPSCR_REGNUM));
 
   printf_filtered
     ("R0-R7    %08lx %08lx %08lx %08lx %08lx %08lx %08lx %08lx\n",
-     (long) read_register (0), (long) read_register (1),
-     (long) read_register (2), (long) read_register (3),
-     (long) read_register (4), (long) read_register (5),
-     (long) read_register (6), (long) read_register (7));
-  printf_filtered ("R8-R15   %08lx %08lx %08lx %08lx %08lx %08lx %08lx %08lx\n",
-		   (long) read_register (8), (long) read_register (9),
-		   (long) read_register (10), (long) read_register (11),
-		   (long) read_register (12), (long) read_register (13),
-		   (long) read_register (14), (long) read_register (15));
-
-  printf_filtered ("FP0-FP7  %08lx %08lx %08lx %08lx %08lx %08lx %08lx %08lx\n",
-		   (long) read_register (FP0_REGNUM + 0),
-		   (long) read_register (FP0_REGNUM + 1),
-		   (long) read_register (FP0_REGNUM + 2),
-		   (long) read_register (FP0_REGNUM + 3),
-		   (long) read_register (FP0_REGNUM + 4),
-		   (long) read_register (FP0_REGNUM + 5),
-		   (long) read_register (FP0_REGNUM + 6),
-		   (long) read_register (FP0_REGNUM + 7));
-  printf_filtered ("FP8-FP15 %08lx %08lx %08lx %08lx %08lx %08lx %08lx %08lx\n",
-		   (long) read_register (FP0_REGNUM + 8),
-		   (long) read_register (FP0_REGNUM + 9),
-		   (long) read_register (FP0_REGNUM + 10),
-		   (long) read_register (FP0_REGNUM + 11),
-		   (long) read_register (FP0_REGNUM + 12),
-		   (long) read_register (FP0_REGNUM + 13),
-		   (long) read_register (FP0_REGNUM + 14),
-		   (long) read_register (FP0_REGNUM + 15));
+     (long) get_frame_register_unsigned (frame, 0),
+     (long) get_frame_register_unsigned (frame, 1),
+     (long) get_frame_register_unsigned (frame, 2),
+     (long) get_frame_register_unsigned (frame, 3),
+     (long) get_frame_register_unsigned (frame, 4),
+     (long) get_frame_register_unsigned (frame, 5),
+     (long) get_frame_register_unsigned (frame, 6),
+     (long) get_frame_register_unsigned (frame, 7));
+  printf_filtered
+    ("R8-R15   %08lx %08lx %08lx %08lx %08lx %08lx %08lx %08lx\n",
+     (long) get_frame_register_unsigned (frame, 8),
+     (long) get_frame_register_unsigned (frame, 9),
+     (long) get_frame_register_unsigned (frame, 10),
+     (long) get_frame_register_unsigned (frame, 11),
+     (long) get_frame_register_unsigned (frame, 12),
+     (long) get_frame_register_unsigned (frame, 13),
+     (long) get_frame_register_unsigned (frame, 14),
+     (long) get_frame_register_unsigned (frame, 15));
+
+  printf_filtered
+    ("FP0-FP7  %08lx %08lx %08lx %08lx %08lx %08lx %08lx %08lx\n",
+     (long) get_frame_register_unsigned (frame, FP0_REGNUM + 0),
+     (long) get_frame_register_unsigned (frame, FP0_REGNUM + 1),
+     (long) get_frame_register_unsigned (frame, FP0_REGNUM + 2),
+     (long) get_frame_register_unsigned (frame, FP0_REGNUM + 3),
+     (long) get_frame_register_unsigned (frame, FP0_REGNUM + 4),
+     (long) get_frame_register_unsigned (frame, FP0_REGNUM + 5),
+     (long) get_frame_register_unsigned (frame, FP0_REGNUM + 6),
+     (long) get_frame_register_unsigned (frame, FP0_REGNUM + 7));
+  printf_filtered
+    ("FP8-FP15 %08lx %08lx %08lx %08lx %08lx %08lx %08lx %08lx\n",
+     (long) get_frame_register_unsigned (frame, FP0_REGNUM + 8),
+     (long) get_frame_register_unsigned (frame, FP0_REGNUM + 9),
+     (long) get_frame_register_unsigned (frame, FP0_REGNUM + 10),
+     (long) get_frame_register_unsigned (frame, FP0_REGNUM + 11),
+     (long) get_frame_register_unsigned (frame, FP0_REGNUM + 12),
+     (long) get_frame_register_unsigned (frame, FP0_REGNUM + 13),
+     (long) get_frame_register_unsigned (frame, FP0_REGNUM + 14),
+     (long) get_frame_register_unsigned (frame, FP0_REGNUM + 15));
 }
 
 static void
-sh2a_show_regs (void)
-{
-  int pr = read_register (FPSCR_REGNUM) & 0x80000;
-  printf_filtered ("      PC %s       SR %08lx       PR %08lx     MACH %08lx\n",
-		   paddr (read_register (PC_REGNUM)),
-		   (long) read_register (SR_REGNUM),
-		   (long) read_register (PR_REGNUM),
-		   (long) read_register (MACH_REGNUM));
-
-  printf_filtered (
-	"     GBR %08lx      VBR %08lx      TBR %08lx     MACL %08lx\n",
-		   (long) read_register (GBR_REGNUM),
-		   (long) read_register (VBR_REGNUM),
-		   (long) read_register (TBR_REGNUM),
-		   (long) read_register (MACL_REGNUM));
-  printf_filtered (
-	"     SSR %08lx      SPC %08lx     FPUL %08lx    FPSCR %08lx\n",
-		   (long) read_register (SSR_REGNUM),
-		   (long) read_register (SPC_REGNUM),
-		   (long) read_register (FPUL_REGNUM),
-		   (long) read_register (FPSCR_REGNUM));
-
-  printf_filtered ("R0-R7    %08lx %08lx %08lx %08lx %08lx %08lx %08lx %08lx\n",
-		   (long) read_register (0), (long) read_register (1),
-		   (long) read_register (2), (long) read_register (3),
-		   (long) read_register (4), (long) read_register (5),
-		   (long) read_register (6), (long) read_register (7));
-  printf_filtered ("R8-R15   %08lx %08lx %08lx %08lx %08lx %08lx %08lx %08lx\n",
-		   (long) read_register (8), (long) read_register (9),
-		   (long) read_register (10), (long) read_register (11),
-		   (long) read_register (12), (long) read_register (13),
-		   (long) read_register (14), (long) read_register (15));
-
-  printf_filtered (
-	(pr ? "DR0-DR6  %08lx%08lx  %08lx%08lx  %08lx%08lx  %08lx%08lx\n"
-	    : "FP0-FP7  %08lx %08lx %08lx %08lx %08lx %08lx %08lx %08lx\n"),
-		   (long) read_register (FP0_REGNUM + 0),
-		   (long) read_register (FP0_REGNUM + 1),
-		   (long) read_register (FP0_REGNUM + 2),
-		   (long) read_register (FP0_REGNUM + 3),
-		   (long) read_register (FP0_REGNUM + 4),
-		   (long) read_register (FP0_REGNUM + 5),
-		   (long) read_register (FP0_REGNUM + 6),
-		   (long) read_register (FP0_REGNUM + 7));
-  printf_filtered (
-	(pr ? "DR8-DR14 %08lx%08lx  %08lx%08lx  %08lx%08lx  %08lx%08lx\n"
-	    : "FP8-FP15 %08lx %08lx %08lx %08lx %08lx %08lx %08lx %08lx\n"),
-		   (long) read_register (FP0_REGNUM + 8),
-		   (long) read_register (FP0_REGNUM + 9),
-		   (long) read_register (FP0_REGNUM + 10),
-		   (long) read_register (FP0_REGNUM + 11),
-		   (long) read_register (FP0_REGNUM + 12),
-		   (long) read_register (FP0_REGNUM + 13),
-		   (long) read_register (FP0_REGNUM + 14),
-		   (long) read_register (FP0_REGNUM + 15));
-  printf_filtered ("BANK=%-3d\n", (int) read_register (BANK_REGNUM));
-  printf_filtered (
-	"R0b-R7b  %08lx %08lx %08lx %08lx %08lx %08lx %08lx %08lx\n",
-		   (long) read_register (R0_BANK0_REGNUM + 0),
-		   (long) read_register (R0_BANK0_REGNUM + 1),
-		   (long) read_register (R0_BANK0_REGNUM + 2),
-		   (long) read_register (R0_BANK0_REGNUM + 3),
-		   (long) read_register (R0_BANK0_REGNUM + 4),
-		   (long) read_register (R0_BANK0_REGNUM + 5),
-		   (long) read_register (R0_BANK0_REGNUM + 6),
-		   (long) read_register (R0_BANK0_REGNUM + 7));
-  printf_filtered ("R8b-R14b %08lx %08lx %08lx %08lx %08lx %08lx %08lx\n",
-		   (long) read_register (R0_BANK0_REGNUM + 8),
-		   (long) read_register (R0_BANK0_REGNUM + 9),
-		   (long) read_register (R0_BANK0_REGNUM + 10),
-		   (long) read_register (R0_BANK0_REGNUM + 11),
-		   (long) read_register (R0_BANK0_REGNUM + 12),
-		   (long) read_register (R0_BANK0_REGNUM + 13),
-		   (long) read_register (R0_BANK0_REGNUM + 14));
-  printf_filtered ("MACHb=%08lx IVNb=%08lx PRb=%08lx GBRb=%08lx MACLb=%08lx\n",
-		   (long) read_register (R0_BANK0_REGNUM + 15),
-		   (long) read_register (R0_BANK0_REGNUM + 16),
-		   (long) read_register (R0_BANK0_REGNUM + 17),
-		   (long) read_register (R0_BANK0_REGNUM + 18),
-		   (long) read_register (R0_BANK0_REGNUM + 19));
+sh2a_show_regs (struct frame_info *frame)
+{
+  int pr = get_frame_register_unsigned (frame, FPSCR_REGNUM) & 0x80000;
+
+  printf_filtered
+    ("      PC %s       SR %08lx       PR %08lx     MACH %08lx\n",
+     paddr (get_frame_register_unsigned (frame, PC_REGNUM)),
+     (long) get_frame_register_unsigned (frame, SR_REGNUM),
+     (long) get_frame_register_unsigned (frame, PR_REGNUM),
+     (long) get_frame_register_unsigned (frame, MACH_REGNUM));
+
+  printf_filtered
+    ("     GBR %08lx      VBR %08lx      TBR %08lx     MACL %08lx\n",
+     (long) get_frame_register_unsigned (frame, GBR_REGNUM),
+     (long) get_frame_register_unsigned (frame, VBR_REGNUM),
+     (long) get_frame_register_unsigned (frame, TBR_REGNUM),
+     (long) get_frame_register_unsigned (frame, MACL_REGNUM));
+  printf_filtered
+    ("     SSR %08lx      SPC %08lx     FPUL %08lx    FPSCR %08lx\n",
+     (long) get_frame_register_unsigned (frame, SSR_REGNUM),
+     (long) get_frame_register_unsigned (frame, SPC_REGNUM),
+     (long) get_frame_register_unsigned (frame, FPUL_REGNUM),
+     (long) get_frame_register_unsigned (frame, FPSCR_REGNUM));
+
+  printf_filtered
+    ("R0-R7    %08lx %08lx %08lx %08lx %08lx %08lx %08lx %08lx\n",
+     (long) get_frame_register_unsigned (frame, 0),
+     (long) get_frame_register_unsigned (frame, 1),
+     (long) get_frame_register_unsigned (frame, 2),
+     (long) get_frame_register_unsigned (frame, 3),
+     (long) get_frame_register_unsigned (frame, 4),
+     (long) get_frame_register_unsigned (frame, 5),
+     (long) get_frame_register_unsigned (frame, 6),
+     (long) get_frame_register_unsigned (frame, 7));
+  printf_filtered
+    ("R8-R15   %08lx %08lx %08lx %08lx %08lx %08lx %08lx %08lx\n",
+     (long) get_frame_register_unsigned (frame, 8),
+     (long) get_frame_register_unsigned (frame, 9),
+     (long) get_frame_register_unsigned (frame, 10),
+     (long) get_frame_register_unsigned (frame, 11),
+     (long) get_frame_register_unsigned (frame, 12),
+     (long) get_frame_register_unsigned (frame, 13),
+     (long) get_frame_register_unsigned (frame, 14),
+     (long) get_frame_register_unsigned (frame, 15));
+
+  printf_filtered
+    (pr ? "DR0-DR6  %08lx%08lx  %08lx%08lx  %08lx%08lx  %08lx%08lx\n"
+	: "FP0-FP7  %08lx %08lx %08lx %08lx %08lx %08lx %08lx %08lx\n",
+     (long) get_frame_register_unsigned (frame, FP0_REGNUM + 0),
+     (long) get_frame_register_unsigned (frame, FP0_REGNUM + 1),
+     (long) get_frame_register_unsigned (frame, FP0_REGNUM + 2),
+     (long) get_frame_register_unsigned (frame, FP0_REGNUM + 3),
+     (long) get_frame_register_unsigned (frame, FP0_REGNUM + 4),
+     (long) get_frame_register_unsigned (frame, FP0_REGNUM + 5),
+     (long) get_frame_register_unsigned (frame, FP0_REGNUM + 6),
+     (long) get_frame_register_unsigned (frame, FP0_REGNUM + 7));
+  printf_filtered
+    (pr ? "DR8-DR14 %08lx%08lx  %08lx%08lx  %08lx%08lx  %08lx%08lx\n"
+	: "FP8-FP15 %08lx %08lx %08lx %08lx %08lx %08lx %08lx %08lx\n",
+     (long) get_frame_register_unsigned (frame, FP0_REGNUM + 8),
+     (long) get_frame_register_unsigned (frame, FP0_REGNUM + 9),
+     (long) get_frame_register_unsigned (frame, FP0_REGNUM + 10),
+     (long) get_frame_register_unsigned (frame, FP0_REGNUM + 11),
+     (long) get_frame_register_unsigned (frame, FP0_REGNUM + 12),
+     (long) get_frame_register_unsigned (frame, FP0_REGNUM + 13),
+     (long) get_frame_register_unsigned (frame, FP0_REGNUM + 14),
+     (long) get_frame_register_unsigned (frame, FP0_REGNUM + 15));
+  printf_filtered
+    ("BANK=%-3d\n", (int) get_frame_register_unsigned (frame, BANK_REGNUM));
+  printf_filtered
+    ("R0b-R7b  %08lx %08lx %08lx %08lx %08lx %08lx %08lx %08lx\n",
+     (long) get_frame_register_unsigned (frame, R0_BANK0_REGNUM + 0),
+     (long) get_frame_register_unsigned (frame, R0_BANK0_REGNUM + 1),
+     (long) get_frame_register_unsigned (frame, R0_BANK0_REGNUM + 2),
+     (long) get_frame_register_unsigned (frame, R0_BANK0_REGNUM + 3),
+     (long) get_frame_register_unsigned (frame, R0_BANK0_REGNUM + 4),
+     (long) get_frame_register_unsigned (frame, R0_BANK0_REGNUM + 5),
+     (long) get_frame_register_unsigned (frame, R0_BANK0_REGNUM + 6),
+     (long) get_frame_register_unsigned (frame, R0_BANK0_REGNUM + 7));
+  printf_filtered
+    ("R8b-R14b %08lx %08lx %08lx %08lx %08lx %08lx %08lx\n",
+     (long) get_frame_register_unsigned (frame, R0_BANK0_REGNUM + 8),
+     (long) get_frame_register_unsigned (frame, R0_BANK0_REGNUM + 9),
+     (long) get_frame_register_unsigned (frame, R0_BANK0_REGNUM + 10),
+     (long) get_frame_register_unsigned (frame, R0_BANK0_REGNUM + 11),
+     (long) get_frame_register_unsigned (frame, R0_BANK0_REGNUM + 12),
+     (long) get_frame_register_unsigned (frame, R0_BANK0_REGNUM + 13),
+     (long) get_frame_register_unsigned (frame, R0_BANK0_REGNUM + 14));
+  printf_filtered
+    ("MACHb=%08lx IVNb=%08lx PRb=%08lx GBRb=%08lx MACLb=%08lx\n",
+     (long) get_frame_register_unsigned (frame, R0_BANK0_REGNUM + 15),
+     (long) get_frame_register_unsigned (frame, R0_BANK0_REGNUM + 16),
+     (long) get_frame_register_unsigned (frame, R0_BANK0_REGNUM + 17),
+     (long) get_frame_register_unsigned (frame, R0_BANK0_REGNUM + 18),
+     (long) get_frame_register_unsigned (frame, R0_BANK0_REGNUM + 19));
 }
 
 static void
-sh2a_nofpu_show_regs (void)
-{
-  int pr = read_register (FPSCR_REGNUM) & 0x80000;
-  printf_filtered ("      PC %s       SR %08lx       PR %08lx     MACH %08lx\n",
-		   paddr (read_register (PC_REGNUM)),
-		   (long) read_register (SR_REGNUM),
-		   (long) read_register (PR_REGNUM),
-		   (long) read_register (MACH_REGNUM));
-
-  printf_filtered (
-	"     GBR %08lx      VBR %08lx      TBR %08lx     MACL %08lx\n",
-		   (long) read_register (GBR_REGNUM),
-		   (long) read_register (VBR_REGNUM),
-		   (long) read_register (TBR_REGNUM),
-		   (long) read_register (MACL_REGNUM));
-  printf_filtered (
-	"     SSR %08lx      SPC %08lx     FPUL %08lx    FPSCR %08lx\n",
-		   (long) read_register (SSR_REGNUM),
-		   (long) read_register (SPC_REGNUM),
-		   (long) read_register (FPUL_REGNUM),
-		   (long) read_register (FPSCR_REGNUM));
-
-  printf_filtered ("R0-R7    %08lx %08lx %08lx %08lx %08lx %08lx %08lx %08lx\n",
-		   (long) read_register (0), (long) read_register (1),
-		   (long) read_register (2), (long) read_register (3),
-		   (long) read_register (4), (long) read_register (5),
-		   (long) read_register (6), (long) read_register (7));
-  printf_filtered ("R8-R15   %08lx %08lx %08lx %08lx %08lx %08lx %08lx %08lx\n",
-		   (long) read_register (8), (long) read_register (9),
-		   (long) read_register (10), (long) read_register (11),
-		   (long) read_register (12), (long) read_register (13),
-		   (long) read_register (14), (long) read_register (15));
-
-  printf_filtered ("BANK=%-3d\n", (int) read_register (BANK_REGNUM));
-  printf_filtered (
-	"R0b-R7b  %08lx %08lx %08lx %08lx %08lx %08lx %08lx %08lx\n",
-		   (long) read_register (R0_BANK0_REGNUM + 0),
-		   (long) read_register (R0_BANK0_REGNUM + 1),
-		   (long) read_register (R0_BANK0_REGNUM + 2),
-		   (long) read_register (R0_BANK0_REGNUM + 3),
-		   (long) read_register (R0_BANK0_REGNUM + 4),
-		   (long) read_register (R0_BANK0_REGNUM + 5),
-		   (long) read_register (R0_BANK0_REGNUM + 6),
-		   (long) read_register (R0_BANK0_REGNUM + 7));
-  printf_filtered ("R8b-R14b %08lx %08lx %08lx %08lx %08lx %08lx %08lx\n",
-		   (long) read_register (R0_BANK0_REGNUM + 8),
-		   (long) read_register (R0_BANK0_REGNUM + 9),
-		   (long) read_register (R0_BANK0_REGNUM + 10),
-		   (long) read_register (R0_BANK0_REGNUM + 11),
-		   (long) read_register (R0_BANK0_REGNUM + 12),
-		   (long) read_register (R0_BANK0_REGNUM + 13),
-		   (long) read_register (R0_BANK0_REGNUM + 14));
-  printf_filtered ("MACHb=%08lx IVNb=%08lx PRb=%08lx GBRb=%08lx MACLb=%08lx\n",
-		   (long) read_register (R0_BANK0_REGNUM + 15),
-		   (long) read_register (R0_BANK0_REGNUM + 16),
-		   (long) read_register (R0_BANK0_REGNUM + 17),
-		   (long) read_register (R0_BANK0_REGNUM + 18),
-		   (long) read_register (R0_BANK0_REGNUM + 19));
+sh2a_nofpu_show_regs (struct frame_info *frame)
+{
+  int pr = get_frame_register_unsigned (frame, FPSCR_REGNUM) & 0x80000;
+
+  printf_filtered
+    ("      PC %s       SR %08lx       PR %08lx     MACH %08lx\n",
+     paddr (get_frame_register_unsigned (frame, PC_REGNUM)),
+     (long) get_frame_register_unsigned (frame, SR_REGNUM),
+     (long) get_frame_register_unsigned (frame, PR_REGNUM),
+     (long) get_frame_register_unsigned (frame, MACH_REGNUM));
+
+  printf_filtered
+    ("     GBR %08lx      VBR %08lx      TBR %08lx     MACL %08lx\n",
+     (long) get_frame_register_unsigned (frame, GBR_REGNUM),
+     (long) get_frame_register_unsigned (frame, VBR_REGNUM),
+     (long) get_frame_register_unsigned (frame, TBR_REGNUM),
+     (long) get_frame_register_unsigned (frame, MACL_REGNUM));
+  printf_filtered
+    ("     SSR %08lx      SPC %08lx     FPUL %08lx    FPSCR %08lx\n",
+     (long) get_frame_register_unsigned (frame, SSR_REGNUM),
+     (long) get_frame_register_unsigned (frame, SPC_REGNUM),
+     (long) get_frame_register_unsigned (frame, FPUL_REGNUM),
+     (long) get_frame_register_unsigned (frame, FPSCR_REGNUM));
+
+  printf_filtered
+    ("R0-R7    %08lx %08lx %08lx %08lx %08lx %08lx %08lx %08lx\n",
+     (long) get_frame_register_unsigned (frame, 0),
+     (long) get_frame_register_unsigned (frame, 1),
+     (long) get_frame_register_unsigned (frame, 2),
+     (long) get_frame_register_unsigned (frame, 3),
+     (long) get_frame_register_unsigned (frame, 4),
+     (long) get_frame_register_unsigned (frame, 5),
+     (long) get_frame_register_unsigned (frame, 6),
+     (long) get_frame_register_unsigned (frame, 7));
+  printf_filtered
+    ("R8-R15   %08lx %08lx %08lx %08lx %08lx %08lx %08lx %08lx\n",
+     (long) get_frame_register_unsigned (frame, 8),
+     (long) get_frame_register_unsigned (frame, 9),
+     (long) get_frame_register_unsigned (frame, 10),
+     (long) get_frame_register_unsigned (frame, 11),
+     (long) get_frame_register_unsigned (frame, 12),
+     (long) get_frame_register_unsigned (frame, 13),
+     (long) get_frame_register_unsigned (frame, 14),
+     (long) get_frame_register_unsigned (frame, 15));
+
+  printf_filtered
+    ("BANK=%-3d\n", (int) get_frame_register_unsigned (frame, BANK_REGNUM));
+  printf_filtered
+    ("R0b-R7b  %08lx %08lx %08lx %08lx %08lx %08lx %08lx %08lx\n",
+     (long) get_frame_register_unsigned (frame, R0_BANK0_REGNUM + 0),
+     (long) get_frame_register_unsigned (frame, R0_BANK0_REGNUM + 1),
+     (long) get_frame_register_unsigned (frame, R0_BANK0_REGNUM + 2),
+     (long) get_frame_register_unsigned (frame, R0_BANK0_REGNUM + 3),
+     (long) get_frame_register_unsigned (frame, R0_BANK0_REGNUM + 4),
+     (long) get_frame_register_unsigned (frame, R0_BANK0_REGNUM + 5),
+     (long) get_frame_register_unsigned (frame, R0_BANK0_REGNUM + 6),
+     (long) get_frame_register_unsigned (frame, R0_BANK0_REGNUM + 7));
+  printf_filtered
+    ("R8b-R14b %08lx %08lx %08lx %08lx %08lx %08lx %08lx\n",
+     (long) get_frame_register_unsigned (frame, R0_BANK0_REGNUM + 8),
+     (long) get_frame_register_unsigned (frame, R0_BANK0_REGNUM + 9),
+     (long) get_frame_register_unsigned (frame, R0_BANK0_REGNUM + 10),
+     (long) get_frame_register_unsigned (frame, R0_BANK0_REGNUM + 11),
+     (long) get_frame_register_unsigned (frame, R0_BANK0_REGNUM + 12),
+     (long) get_frame_register_unsigned (frame, R0_BANK0_REGNUM + 13),
+     (long) get_frame_register_unsigned (frame, R0_BANK0_REGNUM + 14));
+  printf_filtered
+    ("MACHb=%08lx IVNb=%08lx PRb=%08lx GBRb=%08lx MACLb=%08lx\n",
+     (long) get_frame_register_unsigned (frame, R0_BANK0_REGNUM + 15),
+     (long) get_frame_register_unsigned (frame, R0_BANK0_REGNUM + 16),
+     (long) get_frame_register_unsigned (frame, R0_BANK0_REGNUM + 17),
+     (long) get_frame_register_unsigned (frame, R0_BANK0_REGNUM + 18),
+     (long) get_frame_register_unsigned (frame, R0_BANK0_REGNUM + 19));
 }
 
 static void
-sh3e_show_regs (void)
-{
-  printf_filtered ("      PC %s       SR %08lx       PR %08lx     MACH %08lx\n",
-		   paddr (read_register (PC_REGNUM)),
-		   (long) read_register (SR_REGNUM),
-		   (long) read_register (PR_REGNUM),
-		   (long) read_register (MACH_REGNUM));
-
-  printf_filtered (
-	"     GBR %08lx      VBR %08lx                       MACL %08lx\n",
-		   (long) read_register (GBR_REGNUM),
-		   (long) read_register (VBR_REGNUM),
-		   (long) read_register (MACL_REGNUM));
-  printf_filtered (
-	"     SSR %08lx      SPC %08lx     FPUL %08lx    FPSCR %08lx\n",
-		   (long) read_register (SSR_REGNUM),
-		   (long) read_register (SPC_REGNUM),
-		   (long) read_register (FPUL_REGNUM),
-		   (long) read_register (FPSCR_REGNUM));
+sh3e_show_regs (struct frame_info *frame)
+{
+  printf_filtered
+    ("      PC %s       SR %08lx       PR %08lx     MACH %08lx\n",
+     paddr (get_frame_register_unsigned (frame, PC_REGNUM)),
+     (long) get_frame_register_unsigned (frame, SR_REGNUM),
+     (long) get_frame_register_unsigned (frame, PR_REGNUM),
+     (long) get_frame_register_unsigned (frame, MACH_REGNUM));
+
+  printf_filtered
+    ("     GBR %08lx      VBR %08lx                       MACL %08lx\n",
+     (long) get_frame_register_unsigned (frame, GBR_REGNUM),
+     (long) get_frame_register_unsigned (frame, VBR_REGNUM),
+     (long) get_frame_register_unsigned (frame, MACL_REGNUM));
+  printf_filtered
+    ("     SSR %08lx      SPC %08lx     FPUL %08lx    FPSCR %08lx\n",
+     (long) get_frame_register_unsigned (frame, SSR_REGNUM),
+     (long) get_frame_register_unsigned (frame, SPC_REGNUM),
+     (long) get_frame_register_unsigned (frame, FPUL_REGNUM),
+     (long) get_frame_register_unsigned (frame, FPSCR_REGNUM));
 
   printf_filtered
     ("R0-R7    %08lx %08lx %08lx %08lx %08lx %08lx %08lx %08lx\n",
-     (long) read_register (0), (long) read_register (1),
-     (long) read_register (2), (long) read_register (3),
-     (long) read_register (4), (long) read_register (5),
-     (long) read_register (6), (long) read_register (7));
-  printf_filtered ("R8-R15   %08lx %08lx %08lx %08lx %08lx %08lx %08lx %08lx\n",
-		   (long) read_register (8), (long) read_register (9),
-		   (long) read_register (10), (long) read_register (11),
-		   (long) read_register (12), (long) read_register (13),
-		   (long) read_register (14), (long) read_register (15));
-
-  printf_filtered ("FP0-FP7  %08lx %08lx %08lx %08lx %08lx %08lx %08lx %08lx\n",
-		   (long) read_register (FP0_REGNUM + 0),
-		   (long) read_register (FP0_REGNUM + 1),
-		   (long) read_register (FP0_REGNUM + 2),
-		   (long) read_register (FP0_REGNUM + 3),
-		   (long) read_register (FP0_REGNUM + 4),
-		   (long) read_register (FP0_REGNUM + 5),
-		   (long) read_register (FP0_REGNUM + 6),
-		   (long) read_register (FP0_REGNUM + 7));
-  printf_filtered ("FP8-FP15 %08lx %08lx %08lx %08lx %08lx %08lx %08lx %08lx\n",
-		   (long) read_register (FP0_REGNUM + 8),
-		   (long) read_register (FP0_REGNUM + 9),
-		   (long) read_register (FP0_REGNUM + 10),
-		   (long) read_register (FP0_REGNUM + 11),
-		   (long) read_register (FP0_REGNUM + 12),
-		   (long) read_register (FP0_REGNUM + 13),
-		   (long) read_register (FP0_REGNUM + 14),
-		   (long) read_register (FP0_REGNUM + 15));
+     (long) get_frame_register_unsigned (frame, 0),
+     (long) get_frame_register_unsigned (frame, 1),
+     (long) get_frame_register_unsigned (frame, 2),
+     (long) get_frame_register_unsigned (frame, 3),
+     (long) get_frame_register_unsigned (frame, 4),
+     (long) get_frame_register_unsigned (frame, 5),
+     (long) get_frame_register_unsigned (frame, 6),
+     (long) get_frame_register_unsigned (frame, 7));
+  printf_filtered
+    ("R8-R15   %08lx %08lx %08lx %08lx %08lx %08lx %08lx %08lx\n",
+     (long) get_frame_register_unsigned (frame, 8),
+     (long) get_frame_register_unsigned (frame, 9),
+     (long) get_frame_register_unsigned (frame, 10),
+     (long) get_frame_register_unsigned (frame, 11),
+     (long) get_frame_register_unsigned (frame, 12),
+     (long) get_frame_register_unsigned (frame, 13),
+     (long) get_frame_register_unsigned (frame, 14),
+     (long) get_frame_register_unsigned (frame, 15));
+
+  printf_filtered
+    ("FP0-FP7  %08lx %08lx %08lx %08lx %08lx %08lx %08lx %08lx\n",
+     (long) get_frame_register_unsigned (frame, FP0_REGNUM + 0),
+     (long) get_frame_register_unsigned (frame, FP0_REGNUM + 1),
+     (long) get_frame_register_unsigned (frame, FP0_REGNUM + 2),
+     (long) get_frame_register_unsigned (frame, FP0_REGNUM + 3),
+     (long) get_frame_register_unsigned (frame, FP0_REGNUM + 4),
+     (long) get_frame_register_unsigned (frame, FP0_REGNUM + 5),
+     (long) get_frame_register_unsigned (frame, FP0_REGNUM + 6),
+     (long) get_frame_register_unsigned (frame, FP0_REGNUM + 7));
+  printf_filtered
+    ("FP8-FP15 %08lx %08lx %08lx %08lx %08lx %08lx %08lx %08lx\n",
+     (long) get_frame_register_unsigned (frame, FP0_REGNUM + 8),
+     (long) get_frame_register_unsigned (frame, FP0_REGNUM + 9),
+     (long) get_frame_register_unsigned (frame, FP0_REGNUM + 10),
+     (long) get_frame_register_unsigned (frame, FP0_REGNUM + 11),
+     (long) get_frame_register_unsigned (frame, FP0_REGNUM + 12),
+     (long) get_frame_register_unsigned (frame, FP0_REGNUM + 13),
+     (long) get_frame_register_unsigned (frame, FP0_REGNUM + 14),
+     (long) get_frame_register_unsigned (frame, FP0_REGNUM + 15));
 }
 
 static void
-sh3_dsp_show_regs (void)
+sh3_dsp_show_regs (struct frame_info *frame)
 {
-  printf_filtered ("      PC %s       SR %08lx       PR %08lx     MACH %08lx\n",
-		   paddr (read_register (PC_REGNUM)),
-		   (long) read_register (SR_REGNUM),
-		   (long) read_register (PR_REGNUM),
-		   (long) read_register (MACH_REGNUM));
+  printf_filtered
+    ("      PC %s       SR %08lx       PR %08lx     MACH %08lx\n",
+     paddr (get_frame_register_unsigned (frame, PC_REGNUM)),
+     (long) get_frame_register_unsigned (frame, SR_REGNUM),
+     (long) get_frame_register_unsigned (frame, PR_REGNUM),
+     (long) get_frame_register_unsigned (frame, MACH_REGNUM));
 
-  printf_filtered (
-	"     GBR %08lx      VBR %08lx                       MACL %08lx\n",
-		   (long) read_register (GBR_REGNUM),
-		   (long) read_register (VBR_REGNUM),
-		   (long) read_register (MACL_REGNUM));
+  printf_filtered
+    ("     GBR %08lx      VBR %08lx                       MACL %08lx\n",
+     (long) get_frame_register_unsigned (frame, GBR_REGNUM),
+     (long) get_frame_register_unsigned (frame, VBR_REGNUM),
+     (long) get_frame_register_unsigned (frame, MACL_REGNUM));
 
-  printf_filtered ("     SSR %08lx      SPC %08lx      DSR %08lx\n",
-		   (long) read_register (SSR_REGNUM),
-		   (long) read_register (SPC_REGNUM),
-		   (long) read_register (DSR_REGNUM));
+  printf_filtered
+    ("     SSR %08lx      SPC %08lx      DSR %08lx\n",
+     (long) get_frame_register_unsigned (frame, SSR_REGNUM),
+     (long) get_frame_register_unsigned (frame, SPC_REGNUM),
+     (long) get_frame_register_unsigned (frame, DSR_REGNUM));
 
   printf_filtered
     ("R0-R7    %08lx %08lx %08lx %08lx %08lx %08lx %08lx %08lx\n",
-     (long) read_register (0), (long) read_register (1),
-     (long) read_register (2), (long) read_register (3),
-     (long) read_register (4), (long) read_register (5),
-     (long) read_register (6), (long) read_register (7));
-  printf_filtered ("R8-R15   %08lx %08lx %08lx %08lx %08lx %08lx %08lx %08lx\n",
-		   (long) read_register (8), (long) read_register (9),
-		   (long) read_register (10), (long) read_register (11),
-		   (long) read_register (12), (long) read_register (13),
-		   (long) read_register (14), (long) read_register (15));
+     (long) get_frame_register_unsigned (frame, 0),
+     (long) get_frame_register_unsigned (frame, 1),
+     (long) get_frame_register_unsigned (frame, 2),
+     (long) get_frame_register_unsigned (frame, 3),
+     (long) get_frame_register_unsigned (frame, 4),
+     (long) get_frame_register_unsigned (frame, 5),
+     (long) get_frame_register_unsigned (frame, 6),
+     (long) get_frame_register_unsigned (frame, 7));
+  printf_filtered
+    ("R8-R15   %08lx %08lx %08lx %08lx %08lx %08lx %08lx %08lx\n",
+     (long) get_frame_register_unsigned (frame, 8),
+     (long) get_frame_register_unsigned (frame, 9),
+     (long) get_frame_register_unsigned (frame, 10),
+     (long) get_frame_register_unsigned (frame, 11),
+     (long) get_frame_register_unsigned (frame, 12),
+     (long) get_frame_register_unsigned (frame, 13),
+     (long) get_frame_register_unsigned (frame, 14),
+     (long) get_frame_register_unsigned (frame, 15));
 
   printf_filtered
     ("A0G=%02lx A0=%08lx M0=%08lx X0=%08lx Y0=%08lx RS=%08lx MOD=%08lx\n",
-     (long) read_register (A0G_REGNUM) & 0xff,
-     (long) read_register (A0_REGNUM), (long) read_register (M0_REGNUM),
-     (long) read_register (X0_REGNUM), (long) read_register (Y0_REGNUM),
-     (long) read_register (RS_REGNUM), (long) read_register (MOD_REGNUM));
-  printf_filtered ("A1G=%02lx A1=%08lx M1=%08lx X1=%08lx Y1=%08lx RE=%08lx\n",
-		   (long) read_register (A1G_REGNUM) & 0xff,
-		   (long) read_register (A1_REGNUM),
-		   (long) read_register (M1_REGNUM),
-		   (long) read_register (X1_REGNUM),
-		   (long) read_register (Y1_REGNUM),
-		   (long) read_register (RE_REGNUM));
+     (long) get_frame_register_unsigned (frame, A0G_REGNUM) & 0xff,
+     (long) get_frame_register_unsigned (frame, A0_REGNUM),
+     (long) get_frame_register_unsigned (frame, M0_REGNUM),
+     (long) get_frame_register_unsigned (frame, X0_REGNUM),
+     (long) get_frame_register_unsigned (frame, Y0_REGNUM),
+     (long) get_frame_register_unsigned (frame, RS_REGNUM),
+     (long) get_frame_register_unsigned (frame, MOD_REGNUM));
+  printf_filtered
+    ("A1G=%02lx A1=%08lx M1=%08lx X1=%08lx Y1=%08lx RE=%08lx\n",
+     (long) get_frame_register_unsigned (frame, A1G_REGNUM) & 0xff,
+     (long) get_frame_register_unsigned (frame, A1_REGNUM),
+     (long) get_frame_register_unsigned (frame, M1_REGNUM),
+     (long) get_frame_register_unsigned (frame, X1_REGNUM),
+     (long) get_frame_register_unsigned (frame, Y1_REGNUM),
+     (long) get_frame_register_unsigned (frame, RE_REGNUM));
 }
 
 static void
-sh4_show_regs (void)
-{
-  int pr = read_register (FPSCR_REGNUM) & 0x80000;
-  printf_filtered ("      PC %s       SR %08lx       PR %08lx     MACH %08lx\n",
-		   paddr (read_register (PC_REGNUM)),
-		   (long) read_register (SR_REGNUM),
-		   (long) read_register (PR_REGNUM),
-		   (long) read_register (MACH_REGNUM));
-
-  printf_filtered (
-	"     GBR %08lx      VBR %08lx                       MACL %08lx\n",
-		   (long) read_register (GBR_REGNUM),
-		   (long) read_register (VBR_REGNUM),
-		   (long) read_register (MACL_REGNUM));
-  printf_filtered (
-	"     SSR %08lx      SPC %08lx     FPUL %08lx    FPSCR %08lx\n",
-		   (long) read_register (SSR_REGNUM),
-		   (long) read_register (SPC_REGNUM),
-		   (long) read_register (FPUL_REGNUM),
-		   (long) read_register (FPSCR_REGNUM));
-
-  printf_filtered ("R0-R7    %08lx %08lx %08lx %08lx %08lx %08lx %08lx %08lx\n",
-     		   (long) read_register (0), (long) read_register (1),
-     		   (long) read_register (2), (long) read_register (3),
-     		   (long) read_register (4), (long) read_register (5),
-     		   (long) read_register (6), (long) read_register (7));
-  printf_filtered ("R8-R15   %08lx %08lx %08lx %08lx %08lx %08lx %08lx %08lx\n",
-		   (long) read_register (8), (long) read_register (9),
-		   (long) read_register (10), (long) read_register (11),
-		   (long) read_register (12), (long) read_register (13),
-		   (long) read_register (14), (long) read_register (15));
-
-  printf_filtered (
-	(pr ? "DR0-DR6  %08lx%08lx  %08lx%08lx  %08lx%08lx  %08lx%08lx\n"
-	    : "FP0-FP7  %08lx %08lx %08lx %08lx %08lx %08lx %08lx %08lx\n"),
-		   (long) read_register (FP0_REGNUM + 0),
-		   (long) read_register (FP0_REGNUM + 1),
-		   (long) read_register (FP0_REGNUM + 2),
-		   (long) read_register (FP0_REGNUM + 3),
-		   (long) read_register (FP0_REGNUM + 4),
-		   (long) read_register (FP0_REGNUM + 5),
-		   (long) read_register (FP0_REGNUM + 6),
-		   (long) read_register (FP0_REGNUM + 7));
-  printf_filtered (
-	(pr ? "DR8-DR14 %08lx%08lx  %08lx%08lx  %08lx%08lx  %08lx%08lx\n"
-	    : "FP8-FP15 %08lx %08lx %08lx %08lx %08lx %08lx %08lx %08lx\n"),
-		   (long) read_register (FP0_REGNUM + 8),
-		   (long) read_register (FP0_REGNUM + 9),
-		   (long) read_register (FP0_REGNUM + 10),
-		   (long) read_register (FP0_REGNUM + 11),
-		   (long) read_register (FP0_REGNUM + 12),
-		   (long) read_register (FP0_REGNUM + 13),
-		   (long) read_register (FP0_REGNUM + 14),
-		   (long) read_register (FP0_REGNUM + 15));
+sh4_show_regs (struct frame_info *frame)
+{
+  int pr = get_frame_register_unsigned (frame, FPSCR_REGNUM) & 0x80000;
+
+  printf_filtered
+    ("      PC %s       SR %08lx       PR %08lx     MACH %08lx\n",
+     paddr (get_frame_register_unsigned (frame, PC_REGNUM)),
+     (long) get_frame_register_unsigned (frame, SR_REGNUM),
+     (long) get_frame_register_unsigned (frame, PR_REGNUM),
+     (long) get_frame_register_unsigned (frame, MACH_REGNUM));
+
+  printf_filtered
+    ("     GBR %08lx      VBR %08lx                       MACL %08lx\n",
+     (long) get_frame_register_unsigned (frame, GBR_REGNUM),
+     (long) get_frame_register_unsigned (frame, VBR_REGNUM),
+     (long) get_frame_register_unsigned (frame, MACL_REGNUM));
+  printf_filtered
+    ("     SSR %08lx      SPC %08lx     FPUL %08lx    FPSCR %08lx\n",
+     (long) get_frame_register_unsigned (frame, SSR_REGNUM),
+     (long) get_frame_register_unsigned (frame, SPC_REGNUM),
+     (long) get_frame_register_unsigned (frame, FPUL_REGNUM),
+     (long) get_frame_register_unsigned (frame, FPSCR_REGNUM));
+
+  printf_filtered
+    ("R0-R7    %08lx %08lx %08lx %08lx %08lx %08lx %08lx %08lx\n",
+     (long) get_frame_register_unsigned (frame, 0),
+     (long) get_frame_register_unsigned (frame, 1),
+     (long) get_frame_register_unsigned (frame, 2),
+     (long) get_frame_register_unsigned (frame, 3),
+     (long) get_frame_register_unsigned (frame, 4),
+     (long) get_frame_register_unsigned (frame, 5),
+     (long) get_frame_register_unsigned (frame, 6),
+     (long) get_frame_register_unsigned (frame, 7));
+  printf_filtered
+    ("R8-R15   %08lx %08lx %08lx %08lx %08lx %08lx %08lx %08lx\n",
+     (long) get_frame_register_unsigned (frame, 8),
+     (long) get_frame_register_unsigned (frame, 9),
+     (long) get_frame_register_unsigned (frame, 10),
+     (long) get_frame_register_unsigned (frame, 11),
+     (long) get_frame_register_unsigned (frame, 12),
+     (long) get_frame_register_unsigned (frame, 13),
+     (long) get_frame_register_unsigned (frame, 14),
+     (long) get_frame_register_unsigned (frame, 15));
+
+  printf_filtered
+    (pr ? "DR0-DR6  %08lx%08lx  %08lx%08lx  %08lx%08lx  %08lx%08lx\n"
+	: "FP0-FP7  %08lx %08lx %08lx %08lx %08lx %08lx %08lx %08lx\n",
+     (long) get_frame_register_unsigned (frame, FP0_REGNUM + 0),
+     (long) get_frame_register_unsigned (frame, FP0_REGNUM + 1),
+     (long) get_frame_register_unsigned (frame, FP0_REGNUM + 2),
+     (long) get_frame_register_unsigned (frame, FP0_REGNUM + 3),
+     (long) get_frame_register_unsigned (frame, FP0_REGNUM + 4),
+     (long) get_frame_register_unsigned (frame, FP0_REGNUM + 5),
+     (long) get_frame_register_unsigned (frame, FP0_REGNUM + 6),
+     (long) get_frame_register_unsigned (frame, FP0_REGNUM + 7));
+  printf_filtered
+    (pr ? "DR8-DR14 %08lx%08lx  %08lx%08lx  %08lx%08lx  %08lx%08lx\n"
+	: "FP8-FP15 %08lx %08lx %08lx %08lx %08lx %08lx %08lx %08lx\n",
+     (long) get_frame_register_unsigned (frame, FP0_REGNUM + 8),
+     (long) get_frame_register_unsigned (frame, FP0_REGNUM + 9),
+     (long) get_frame_register_unsigned (frame, FP0_REGNUM + 10),
+     (long) get_frame_register_unsigned (frame, FP0_REGNUM + 11),
+     (long) get_frame_register_unsigned (frame, FP0_REGNUM + 12),
+     (long) get_frame_register_unsigned (frame, FP0_REGNUM + 13),
+     (long) get_frame_register_unsigned (frame, FP0_REGNUM + 14),
+     (long) get_frame_register_unsigned (frame, FP0_REGNUM + 15));
 }
 
 static void
-sh4_nofpu_show_regs (void)
-{
-  printf_filtered ("      PC %s       SR %08lx       PR %08lx     MACH %08lx\n",
-		   paddr (read_register (PC_REGNUM)),
-		   (long) read_register (SR_REGNUM),
-		   (long) read_register (PR_REGNUM),
-		   (long) read_register (MACH_REGNUM));
-
-  printf_filtered (
-	"     GBR %08lx      VBR %08lx                       MACL %08lx\n",
-		   (long) read_register (GBR_REGNUM),
-		   (long) read_register (VBR_REGNUM),
-		   (long) read_register (MACL_REGNUM));
-  printf_filtered (
-	"     SSR %08lx      SPC %08lx     FPUL %08lx    FPSCR %08lx\n",
-		   (long) read_register (SSR_REGNUM),
-		   (long) read_register (SPC_REGNUM),
-		   (long) read_register (FPUL_REGNUM),
-		   (long) read_register (FPSCR_REGNUM));
-
-  printf_filtered ("R0-R7    %08lx %08lx %08lx %08lx %08lx %08lx %08lx %08lx\n",
-     		   (long) read_register (0), (long) read_register (1),
-     		   (long) read_register (2), (long) read_register (3),
-     		   (long) read_register (4), (long) read_register (5),
-     		   (long) read_register (6), (long) read_register (7));
-  printf_filtered ("R8-R15   %08lx %08lx %08lx %08lx %08lx %08lx %08lx %08lx\n",
-		   (long) read_register (8), (long) read_register (9),
-		   (long) read_register (10), (long) read_register (11),
-		   (long) read_register (12), (long) read_register (13),
-		   (long) read_register (14), (long) read_register (15));
+sh4_nofpu_show_regs (struct frame_info *frame)
+{
+  printf_filtered
+    ("      PC %s       SR %08lx       PR %08lx     MACH %08lx\n",
+     paddr (get_frame_register_unsigned (frame, PC_REGNUM)),
+     (long) get_frame_register_unsigned (frame, SR_REGNUM),
+     (long) get_frame_register_unsigned (frame, PR_REGNUM),
+     (long) get_frame_register_unsigned (frame, MACH_REGNUM));
+
+  printf_filtered
+    ("     GBR %08lx      VBR %08lx                       MACL %08lx\n",
+     (long) get_frame_register_unsigned (frame, GBR_REGNUM),
+     (long) get_frame_register_unsigned (frame, VBR_REGNUM),
+     (long) get_frame_register_unsigned (frame, MACL_REGNUM));
+  printf_filtered
+    ("     SSR %08lx      SPC %08lx     FPUL %08lx    FPSCR %08lx\n",
+     (long) get_frame_register_unsigned (frame, SSR_REGNUM),
+     (long) get_frame_register_unsigned (frame, SPC_REGNUM),
+     (long) get_frame_register_unsigned (frame, FPUL_REGNUM),
+     (long) get_frame_register_unsigned (frame, FPSCR_REGNUM));
+
+  printf_filtered
+    ("R0-R7    %08lx %08lx %08lx %08lx %08lx %08lx %08lx %08lx\n",
+     (long) get_frame_register_unsigned (frame, 0),
+     (long) get_frame_register_unsigned (frame, 1),
+     (long) get_frame_register_unsigned (frame, 2),
+     (long) get_frame_register_unsigned (frame, 3),
+     (long) get_frame_register_unsigned (frame, 4),
+     (long) get_frame_register_unsigned (frame, 5),
+     (long) get_frame_register_unsigned (frame, 6),
+     (long) get_frame_register_unsigned (frame, 7));
+  printf_filtered
+    ("R8-R15   %08lx %08lx %08lx %08lx %08lx %08lx %08lx %08lx\n",
+     (long) get_frame_register_unsigned (frame, 8),
+     (long) get_frame_register_unsigned (frame, 9),
+     (long) get_frame_register_unsigned (frame, 10),
+     (long) get_frame_register_unsigned (frame, 11),
+     (long) get_frame_register_unsigned (frame, 12),
+     (long) get_frame_register_unsigned (frame, 13),
+     (long) get_frame_register_unsigned (frame, 14),
+     (long) get_frame_register_unsigned (frame, 15));
 }
 
 static void
-sh_dsp_show_regs (void)
+sh_dsp_show_regs (struct frame_info *frame)
 {
+  printf_filtered
+    ("      PC %s       SR %08lx       PR %08lx     MACH %08lx\n",
+     paddr (get_frame_register_unsigned (frame, PC_REGNUM)),
+     (long) get_frame_register_unsigned (frame, SR_REGNUM),
+     (long) get_frame_register_unsigned (frame, PR_REGNUM),
+     (long) get_frame_register_unsigned (frame, MACH_REGNUM));
 
-  printf_filtered ("      PC %s       SR %08lx       PR %08lx     MACH %08lx\n",
-		   paddr (read_register (PC_REGNUM)),
-		   (long) read_register (SR_REGNUM),
-		   (long) read_register (PR_REGNUM),
-		   (long) read_register (MACH_REGNUM));
-
-  printf_filtered (
-	"     GBR %08lx      VBR %08lx      DSR %08lx     MACL %08lx\n",
-		   (long) read_register (GBR_REGNUM),
-		   (long) read_register (VBR_REGNUM),
-		   (long) read_register (DSR_REGNUM),
-		   (long) read_register (MACL_REGNUM));
+  printf_filtered
+    ("     GBR %08lx      VBR %08lx      DSR %08lx     MACL %08lx\n",
+     (long) get_frame_register_unsigned (frame, GBR_REGNUM),
+     (long) get_frame_register_unsigned (frame, VBR_REGNUM),
+     (long) get_frame_register_unsigned (frame, DSR_REGNUM),
+     (long) get_frame_register_unsigned (frame, MACL_REGNUM));
 
   printf_filtered
     ("R0-R7    %08lx %08lx %08lx %08lx %08lx %08lx %08lx %08lx\n",
-     (long) read_register (0), (long) read_register (1),
-     (long) read_register (2), (long) read_register (3),
-     (long) read_register (4), (long) read_register (5),
-     (long) read_register (6), (long) read_register (7));
-  printf_filtered ("R8-R15   %08lx %08lx %08lx %08lx %08lx %08lx %08lx %08lx\n",
-		   (long) read_register (8), (long) read_register (9),
-		   (long) read_register (10), (long) read_register (11),
-		   (long) read_register (12), (long) read_register (13),
-		   (long) read_register (14), (long) read_register (15));
+     (long) get_frame_register_unsigned (frame, 0),
+     (long) get_frame_register_unsigned (frame, 1),
+     (long) get_frame_register_unsigned (frame, 2),
+     (long) get_frame_register_unsigned (frame, 3),
+     (long) get_frame_register_unsigned (frame, 4),
+     (long) get_frame_register_unsigned (frame, 5),
+     (long) get_frame_register_unsigned (frame, 6),
+     (long) get_frame_register_unsigned (frame, 7));
+  printf_filtered
+    ("R8-R15   %08lx %08lx %08lx %08lx %08lx %08lx %08lx %08lx\n",
+     (long) get_frame_register_unsigned (frame, 8),
+     (long) get_frame_register_unsigned (frame, 9),
+     (long) get_frame_register_unsigned (frame, 10),
+     (long) get_frame_register_unsigned (frame, 11),
+     (long) get_frame_register_unsigned (frame, 12),
+     (long) get_frame_register_unsigned (frame, 13),
+     (long) get_frame_register_unsigned (frame, 14),
+     (long) get_frame_register_unsigned (frame, 15));
 
   printf_filtered
     ("A0G=%02lx A0=%08lx M0=%08lx X0=%08lx Y0=%08lx RS=%08lx MOD=%08lx\n",
-     (long) read_register (A0G_REGNUM) & 0xff,
-     (long) read_register (A0_REGNUM), (long) read_register (M0_REGNUM),
-     (long) read_register (X0_REGNUM), (long) read_register (Y0_REGNUM),
-     (long) read_register (RS_REGNUM), (long) read_register (MOD_REGNUM));
+     (long) get_frame_register_unsigned (frame, A0G_REGNUM) & 0xff,
+     (long) get_frame_register_unsigned (frame, A0_REGNUM),
+     (long) get_frame_register_unsigned (frame, M0_REGNUM),
+     (long) get_frame_register_unsigned (frame, X0_REGNUM),
+     (long) get_frame_register_unsigned (frame, Y0_REGNUM),
+     (long) get_frame_register_unsigned (frame, RS_REGNUM),
+     (long) get_frame_register_unsigned (frame, MOD_REGNUM));
   printf_filtered ("A1G=%02lx A1=%08lx M1=%08lx X1=%08lx Y1=%08lx RE=%08lx\n",
-		   (long) read_register (A1G_REGNUM) & 0xff,
-		   (long) read_register (A1_REGNUM),
-		   (long) read_register (M1_REGNUM),
-		   (long) read_register (X1_REGNUM),
-		   (long) read_register (Y1_REGNUM),
-		   (long) read_register (RE_REGNUM));
+     (long) get_frame_register_unsigned (frame, A1G_REGNUM) & 0xff,
+     (long) get_frame_register_unsigned (frame, A1_REGNUM),
+     (long) get_frame_register_unsigned (frame, M1_REGNUM),
+     (long) get_frame_register_unsigned (frame, X1_REGNUM),
+     (long) get_frame_register_unsigned (frame, Y1_REGNUM),
+     (long) get_frame_register_unsigned (frame, RE_REGNUM));
 }
 
 static void
 sh_show_regs_command (char *args, int from_tty)
 {
   if (sh_show_regs)
-    (*sh_show_regs) ();
+    (*sh_show_regs) (get_current_frame ());
 }
 
 static struct type *