diff --git a/gdb/sh-tdep.c b/gdb/sh-tdep.c
index 2c2b26847d58808ef912ed4969bc28c799ad9bbd..a87547d4ceda1b6db4157d181ae1b982444a867c 100644
--- a/gdb/sh-tdep.c
+++ b/gdb/sh-tdep.c
@@ -1648,13 +1648,14 @@ sh_pseudo_register_read (struct gdbarch *gdbarch, struct regcache *regcache,
 			 int reg_nr, gdb_byte *buffer)
 {
   int base_regnum;
-  gdb_byte temp_buffer[MAX_REGISTER_SIZE];
   enum register_status status;

   if (reg_nr == PSEUDO_BANK_REGNUM)
     return regcache_raw_read (regcache, BANK_REGNUM, buffer);
   else if (reg_nr >= DR0_REGNUM && reg_nr <= DR_LAST_REGNUM)
     {
+      /* Enough space for two float registers.  */
+      gdb_byte temp_buffer[4 * 2];
       base_regnum = dr_reg_base_num (gdbarch, reg_nr);

       /* Build the value in the provided buffer.  */
@@ -1687,7 +1688,6 @@ sh_pseudo_register_write (struct gdbarch *gdbarch, struct regcache *regcache,
 			  int reg_nr, const gdb_byte *buffer)
 {
   int base_regnum, portion;
-  gdb_byte temp_buffer[MAX_REGISTER_SIZE];

   if (reg_nr == PSEUDO_BANK_REGNUM)
     {
@@ -1703,6 +1703,8 @@ sh_pseudo_register_write (struct gdbarch *gdbarch, struct regcache *regcache,
     }
   else if (reg_nr >= DR0_REGNUM && reg_nr <= DR_LAST_REGNUM)
     {
+      /* Enough space for two float registers.  */
+      gdb_byte temp_buffer[4 * 2];
       base_regnum = dr_reg_base_num (gdbarch, reg_nr);

       /* We must pay attention to the endiannes.  */
diff --git a/gdb/sh64-tdep.c b/gdb/sh64-tdep.c
index 06ae04e9da1eff6e2b9e3e977e4f52fa398f69f2..4eb8947f74a5d3a5be33ca68e34194d6ac9f983c 100644
--- a/gdb/sh64-tdep.c
+++ b/gdb/sh64-tdep.c
@@ -1528,12 +1528,12 @@ sh64_pseudo_register_read (struct gdbarch *gdbarch, struct regcache *regcache,
   enum bfd_endian byte_order = gdbarch_byte_order (gdbarch);
   int base_regnum;
   int offset = 0;
-  gdb_byte temp_buffer[MAX_REGISTER_SIZE];
   enum register_status status;

   if (reg_nr >= DR0_REGNUM
       && reg_nr <= DR_LAST_REGNUM)
     {
+      gdb_byte temp_buffer[8];
       base_regnum = sh64_dr_reg_base_num (gdbarch, reg_nr);

       /* Build the value in the provided buffer.  */
@@ -1580,6 +1580,7 @@ sh64_pseudo_register_read (struct gdbarch *gdbarch, struct regcache *regcache,
   else if (reg_nr >= R0_C_REGNUM
 	   && reg_nr <= T_C_REGNUM)
     {
+      gdb_byte temp_buffer[8];
       base_regnum = sh64_compact_reg_base_num (gdbarch, reg_nr);

       /* Build the value in the provided buffer.  */
@@ -1607,6 +1608,7 @@ sh64_pseudo_register_read (struct gdbarch *gdbarch, struct regcache *regcache,
   else if (reg_nr >= DR0_C_REGNUM
 	   && reg_nr <= DR_LAST_C_REGNUM)
     {
+      gdb_byte temp_buffer[8];
       base_regnum = sh64_compact_reg_base_num (gdbarch, reg_nr);

       /* DR_C regs are double precision registers obtained by
@@ -1639,8 +1641,8 @@ sh64_pseudo_register_read (struct gdbarch *gdbarch, struct regcache *regcache,
     {
       int fpscr_base_regnum;
       int sr_base_regnum;
-      unsigned int fpscr_value;
-      unsigned int sr_value;
+      ULONGEST fpscr_value;
+      ULONGEST sr_value;
       unsigned int fpscr_c_value;
       unsigned int fpscr_c_part1_value;
       unsigned int fpscr_c_part2_value;
@@ -1662,18 +1664,14 @@ sh64_pseudo_register_read (struct gdbarch *gdbarch, struct regcache *regcache,
             21-31     reserved
        */
       /* *INDENT-ON* */
-      /* Get FPSCR into a local buffer.  */
-      status = regcache_raw_read (regcache, fpscr_base_regnum, temp_buffer);
+      /* Get FPSCR as an int.  */
+      status = regcache->raw_read_unsigned (fpscr_base_regnum, &fpscr_value);
       if (status != REG_VALID)
 	return status;
-      /* Get value as an int.  */
-      fpscr_value = extract_unsigned_integer (temp_buffer, 4, byte_order);
-      /* Get SR into a local buffer */
-      status = regcache_raw_read (regcache, sr_base_regnum, temp_buffer);
+      /* Get SR as an int.  */
+      status = regcache->raw_read_unsigned (sr_base_regnum, &sr_value);
       if (status != REG_VALID)
 	return status;
-      /* Get value as an int.  */
-      sr_value = extract_unsigned_integer (temp_buffer, 4, byte_order);
       /* Build the new value.  */
       fpscr_c_part1_value = fpscr_value & 0x3fffd;
       fpscr_c_part2_value = (sr_value & 0x7000) << 6;
@@ -1704,11 +1702,11 @@ sh64_pseudo_register_write (struct gdbarch *gdbarch, struct regcache *regcache,
   enum bfd_endian byte_order = gdbarch_byte_order (gdbarch);
   int base_regnum, portion;
   int offset;
-  gdb_byte temp_buffer[MAX_REGISTER_SIZE];

   if (reg_nr >= DR0_REGNUM
       && reg_nr <= DR_LAST_REGNUM)
     {
+      gdb_byte temp_buffer[8];
       base_regnum = sh64_dr_reg_base_num (gdbarch, reg_nr);
       /* We must pay attention to the endianness.  */
       sh64_register_convert_to_raw (gdbarch, register_type (gdbarch, reg_nr),
@@ -1752,6 +1750,7 @@ sh64_pseudo_register_write (struct gdbarch *gdbarch, struct regcache *regcache,
   else if (reg_nr >= R0_C_REGNUM
 	   && reg_nr <= T_C_REGNUM)
     {
+      gdb_byte temp_buffer[8];
       base_regnum = sh64_compact_reg_base_num (gdbarch, reg_nr);
       /* reg_nr is 32 bit here, and base_regnum is 64 bits.  */
       if (gdbarch_byte_order (gdbarch) == BFD_ENDIAN_BIG)
@@ -1779,6 +1778,7 @@ sh64_pseudo_register_write (struct gdbarch *gdbarch, struct regcache *regcache,
   else if (reg_nr >= DR0_C_REGNUM
 	   && reg_nr <= DR_LAST_C_REGNUM)
     {
+      gdb_byte temp_buffer[8];
       base_regnum = sh64_compact_reg_base_num (gdbarch, reg_nr);
       for (portion = 0; portion < 2; portion++)
 	{
@@ -1813,10 +1813,10 @@ sh64_pseudo_register_write (struct gdbarch *gdbarch, struct regcache *regcache,
     {
       int fpscr_base_regnum;
       int sr_base_regnum;
-      unsigned int fpscr_value;
-      unsigned int sr_value;
-      unsigned int old_fpscr_value;
-      unsigned int old_sr_value;
+      ULONGEST fpscr_value;
+      ULONGEST sr_value;
+      ULONGEST old_fpscr_value;
+      ULONGEST old_sr_value;
       unsigned int fpscr_c_value;
       unsigned int fpscr_mask;
       unsigned int sr_mask;
@@ -1847,19 +1847,15 @@ sh64_pseudo_register_write (struct gdbarch *gdbarch, struct regcache *regcache,
       fpscr_value = fpscr_c_value & fpscr_mask;
       sr_value = (fpscr_value & sr_mask) >> 6;

-      regcache_raw_read (regcache, fpscr_base_regnum, temp_buffer);
-      old_fpscr_value = extract_unsigned_integer (temp_buffer, 4, byte_order);
+      regcache->raw_read_unsigned (fpscr_base_regnum, &old_fpscr_value);
       old_fpscr_value &= 0xfffc0002;
       fpscr_value |= old_fpscr_value;
-      store_unsigned_integer (temp_buffer, 4, byte_order, fpscr_value);
-      regcache_raw_write (regcache, fpscr_base_regnum, temp_buffer);
-
-      regcache_raw_read (regcache, sr_base_regnum, temp_buffer);
-      old_sr_value = extract_unsigned_integer (temp_buffer, 4, byte_order);
+      regcache->raw_write_unsigned (fpscr_base_regnum, fpscr_value);
+
+      regcache->raw_read_unsigned (sr_base_regnum, &old_sr_value);
       old_sr_value &= 0xffff8fff;
       sr_value |= old_sr_value;
-      store_unsigned_integer (temp_buffer, 4, byte_order, sr_value);
-      regcache_raw_write (regcache, sr_base_regnum, temp_buffer);
+      regcache->raw_write_unsigned (sr_base_regnum, sr_value);
     }

   else if (reg_nr == FPUL_C_REGNUM)
