sim: moxie: replace custom "word" type with int32_t

This is a 32-bit architecture with 32-bit registers, so replace the
custom "word" int typedef with an explicit int32_t.  Practically
speaking, this produces the same code, but it should hopefully make
it easier to merge common code in the future.

sim/moxie/interp.c

diff --git a/sim/moxie/interp.c b/sim/moxie/interp.c
index 4291865..74a6fda 100644
--- a/sim/moxie/interp.c
+++ b/sim/moxie/interp.c
@@ -37,8 +37,6 @@
 #include "sim-signal.h"
 #include "target-newlib-syscall.h"
 
-typedef int word;
-
 /* Extract the signed 10-bit offset from a 16-bit branch
    instruction.  */
 #define INST2OFFSET(o) ((((signed short)((o & ((1<<10)-1))<<6))>>6)<<1)
@@ -114,9 +112,9 @@
 /* TODO: This should be moved to sim-main.h:_sim_cpu.  */
 struct moxie_regset
 {
-  word		  regs[NUM_MOXIE_REGS + 1]; /* primary registers */
-  word		  sregs[256];             /* special registers */
-  word            cc;                   /* the condition code reg */
+  int32_t	     regs[NUM_MOXIE_REGS + 1]; /* primary registers */
+  int32_t	     sregs[256];           /* special registers */
+  int32_t	     cc;                   /* the condition code reg */
   unsigned long long insts;                /* instruction counter */
 };
 
@@ -130,7 +128,7 @@
 union
 {
   struct moxie_regset asregs;
-  word asints [1];		/* but accessed larger... */
+  int32_t asints [1];		/* but accessed larger... */
 } cpu;
 
 static void
@@ -152,7 +150,7 @@
 /* Write a 1 byte value to memory.  */
 
 static INLINE void
-wbat (sim_cpu *scpu, word pc, word x, word v)
+wbat (sim_cpu *scpu, int32_t pc, int32_t x, int32_t v)
 {
   address_word cia = CPU_PC_GET (scpu);
   
@@ -162,7 +160,7 @@
 /* Write a 2 byte value to memory.  */
 
 static INLINE void
-wsat (sim_cpu *scpu, word pc, word x, word v)
+wsat (sim_cpu *scpu, int32_t pc, int32_t x, int32_t v)
 {
   address_word cia = CPU_PC_GET (scpu);
   
@@ -172,7 +170,7 @@
 /* Write a 4 byte value to memory.  */
 
 static INLINE void
-wlat (sim_cpu *scpu, word pc, word x, word v)
+wlat (sim_cpu *scpu, int32_t pc, int32_t x, int32_t v)
 {
   address_word cia = CPU_PC_GET (scpu);
 	
@@ -182,7 +180,7 @@
 /* Read 2 bytes from memory.  */
 
 static INLINE int
-rsat (sim_cpu *scpu, word pc, word x)
+rsat (sim_cpu *scpu, int32_t pc, int32_t x)
 {
   address_word cia = CPU_PC_GET (scpu);
   
@@ -192,7 +190,7 @@
 /* Read 1 byte from memory.  */
 
 static INLINE int
-rbat (sim_cpu *scpu, word pc, word x)
+rbat (sim_cpu *scpu, int32_t pc, int32_t x)
 {
   address_word cia = CPU_PC_GET (scpu);
   
@@ -202,7 +200,7 @@
 /* Read 4 bytes from memory.  */
 
 static INLINE int
-rlat (sim_cpu *scpu, word pc, word x)
+rlat (sim_cpu *scpu, int32_t pc, int32_t x)
 {
   address_word cia = CPU_PC_GET (scpu);
   
@@ -248,7 +246,7 @@
 		int nr_cpus, /* ignore  */
 		int siggnal) /* ignore  */
 {
-  word pc, opc;
+  int32_t pc, opc;
   unsigned short inst;
   sim_cpu *scpu = STATE_CPU (sd, 0); /* FIXME */
   address_word cia = CPU_PC_GET (scpu);