Add support for MSP430 F5 hardware multiply.

	* msp430-sim.c (sim_open): Check for needed memory at address
	0x500 not 0x200.
	(get_op): Add support for F5 hardware multiply addresses.
	(put_op): Likewise.

diff --git a/sim/msp430/ChangeLog b/sim/msp430/ChangeLog
index eb3f8d579cdd4d65c1f42a40ac6f93363ff46747..21f5329281c577214aa76098ec67aa75054d1b73 100644 (file)
--- a/sim/msp430/ChangeLog
+++ b/sim/msp430/ChangeLog
@@ -1,3 +1,10 @@
+2015-12-07  Nick Clifton  <nickc@redhat.com>
+
+       * msp430-sim.c (sim_open): Check for needed memory at address
+       0x500 not 0x200.
+       (get_op): Add support for F5 hardware multiply addresses.
+       (put_op): Likewise.
+
 2015-11-15  Mike Frysinger  <vapier@gentoo.org>
 
        * Makefile.in (SIM_OBJS): Delete sim-reason.o, sim-reg.o, and

diff --git a/sim/msp430/msp430-sim.c b/sim/msp430/msp430-sim.c
index 7f329c42ea9259ad0027c934cd4134dceaf8ed1b..3a20f6c0cb0eb86563a4c310c091b1fa069590c5 100644 (file)
--- a/sim/msp430/msp430-sim.c
+++ b/sim/msp430/msp430-sim.c
@@ -181,8 +181,8 @@ sim_open (SIM_OPEN_KIND kind,
      Note - these values match the memory regions in the libgloss/msp430/msp430[xl]-sim.ld scripts.  */
   if (sim_core_read_buffer (sd, MSP430_CPU (sd), read_map, &c, 0x2, 1) == 0)
     sim_do_commandf (sd, "memory-region 0,0x20"); /* Needed by the GDB testsuite.  */
-  if (sim_core_read_buffer (sd, MSP430_CPU (sd), read_map, &c, 0x200, 1) == 0)
-    sim_do_commandf (sd, "memory-region 0x200,0xfd00");  /* RAM and/or ROM */
+  if (sim_core_read_buffer (sd, MSP430_CPU (sd), read_map, &c, 0x500, 1) == 0)
+    sim_do_commandf (sd, "memory-region 0x500,0xfa00");  /* RAM and/or ROM */
   if (sim_core_read_buffer (sd, MSP430_CPU (sd), read_map, &c, 0xfffe, 1) == 0)
     sim_do_commandf (sd, "memory-region 0xffc0,0x40"); /* VECTORS.  */
   if (sim_core_read_buffer (sd, MSP430_CPU (sd), read_map, &c, 0x10000, 1) == 0)
@@ -404,10 +404,12 @@ get_op (SIM_DESC sd, MSP430_Opcode_Decoded *opc, int n)
       if (addr == 0x5dd)
        rv = 2;
 #endif
-      if (addr >= 0x130 && addr <= 0x15B)
+      if ((addr >= 0x130 && addr <= 0x15B)
+         || (addr >= 0x4C0 && addr <= 0x4EB))
        {
          switch (addr)
            {
+           case 0x4CA:
            case 0x13A:
              switch (HWMULT (sd, hwmult_type))
                {
@@ -422,6 +424,7 @@ get_op (SIM_DESC sd, MSP430_Opcode_Decoded *opc, int n)
                }
              break;
 
+           case 0x4CC:
            case 0x13C:
              switch (HWMULT (sd, hwmult_type))
                {
@@ -437,6 +440,7 @@ get_op (SIM_DESC sd, MSP430_Opcode_Decoded *opc, int n)
                }
              break;
 
+           case 0x4CE:
            case 0x13E:
              switch (HWMULT (sd, hwmult_type))
                {
@@ -455,18 +459,22 @@ get_op (SIM_DESC sd, MSP430_Opcode_Decoded *opc, int n)
                }
              break;
 
+           case 0x4E4:
            case 0x154:
              rv = zero_ext (HWMULT (sd, hw32mult_result), 16);
              break;
 
+           case 0x4E6:
            case 0x156:
              rv = zero_ext (HWMULT (sd, hw32mult_result) >> 16, 16);
              break;
 
+           case 0x4E8:
            case 0x158:
              rv = zero_ext (HWMULT (sd, hw32mult_result) >> 32, 16);
              break;
 
+           case 0x4EA:
            case 0x15A:
              switch (HWMULT (sd, hw32mult_type))
                {
@@ -581,7 +589,8 @@ put_op (SIM_DESC sd, MSP430_Opcode_Decoded *opc, int n, int val)
       if (addr == 0x5ce)
        putchar (val);
 #endif
-      if (addr >= 0x130 && addr <= 0x15B)
+      if ((addr >= 0x130 && addr <= 0x15B)
+         || (addr >= 0x4C0 && addr <= 0x4EB))
        {
          signed int a,b;
 
@@ -590,12 +599,33 @@ put_op (SIM_DESC sd, MSP430_Opcode_Decoded *opc, int n, int val)
 
          switch (addr)
            {
-           case 0x130: HWMULT (sd, hwmult_op1) = val; HWMULT (sd, hwmult_type) = UNSIGN_32; break;
-           case 0x132: HWMULT (sd, hwmult_op1) = val; HWMULT (sd, hwmult_type) = SIGN_32; break;
-           case 0x134: HWMULT (sd, hwmult_op1) = val; HWMULT (sd, hwmult_type) = UNSIGN_MAC_32; break;
-           case 0x136: HWMULT (sd, hwmult_op1) = val; HWMULT (sd, hwmult_type) = SIGN_MAC_32; break;
+           case 0x4C0:
+           case 0x130:
+             HWMULT (sd, hwmult_op1) = val;
+             HWMULT (sd, hwmult_type) = UNSIGN_32;
+             break;
+
+           case 0x4C2:
+           case 0x132:
+             HWMULT (sd, hwmult_op1) = val;
+             HWMULT (sd, hwmult_type) = SIGN_32;
+             break;
+
+           case 0x4C4:
+           case 0x134:
+             HWMULT (sd, hwmult_op1) = val;
+             HWMULT (sd, hwmult_type) = UNSIGN_MAC_32;
+             break;
+
+           case 0x4C6:
+           case 0x136:
+             HWMULT (sd, hwmult_op1) = val;
+             HWMULT (sd, hwmult_type) = SIGN_MAC_32;
+             break;
 
-           case 0x138: HWMULT (sd, hwmult_op2) = val;
+           case 0x4C8:
+           case 0x138:
+             HWMULT (sd, hwmult_op2) = val;
              switch (HWMULT (sd, hwmult_type))
                {
                case UNSIGN_32:
@@ -630,7 +660,8 @@ put_op (SIM_DESC sd, MSP430_Opcode_Decoded *opc, int n, int val)
                }
              break;
 
-           case 0x13a:
+           case 0x4CA:
+           case 0x13A:
              /* Copy into LOW result...  */
              switch (HWMULT (sd, hwmult_type))
                {
@@ -647,24 +678,34 @@ put_op (SIM_DESC sd, MSP430_Opcode_Decoded *opc, int n, int val)
                }
              break;
                
+           case 0x4D0:
            case 0x140:
              HWMULT (sd, hw32mult_op1) = val;
              HWMULT (sd, hw32mult_type) = UNSIGN_64;
              break;
+
+           case 0x4D2:
            case 0x142:
              HWMULT (sd, hw32mult_op1) = (HWMULT (sd, hw32mult_op1) & 0xFFFF) | (val << 16);
              break;
+
+           case 0x4D4:
            case 0x144:
              HWMULT (sd, hw32mult_op1) = val;
              HWMULT (sd, hw32mult_type) = SIGN_64;
              break;
+
+           case 0x4D6:
            case 0x146:
              HWMULT (sd, hw32mult_op1) = (HWMULT (sd, hw32mult_op1) & 0xFFFF) | (val << 16);
              break;
+
+           case 0x4E0:
            case 0x150:
              HWMULT (sd, hw32mult_op2) = val;
              break;
 
+           case 0x4E2:
            case 0x152:
              HWMULT (sd, hw32mult_op2) = (HWMULT (sd, hw32mult_op2) & 0xFFFF) | (val << 16);
              switch (HWMULT (sd, hw32mult_type))
@@ -1115,6 +1156,7 @@ msp430_step_once (SIM_DESC sd)
       init_disassemble_info (&info, stderr, (fprintf_ftype) fprintf);
       info.private_data = sd;
       info.read_memory_func = msp430_dis_read;
+
       fprintf (stderr, "%#8x  ", opcode_pc);
       for (i = 0; i < opsize; i += 2)
        fprintf (stderr, " %02x%02x", b[i+1], b[i]);