2001-07-07 Ben Elliston <bje@redhat.com>

	* m88k.h: Clean up and reformat. Remove unused code.

2 files changed, 331 insertions, 313 deletions

diff --git a/include/opcode/ChangeLog b/include/opcode/ChangeLog
index 71c2dac75b4..8ab1f704f14 100644
--- a/include/opcode/ChangeLog
+++ b/include/opcode/ChangeLog
@@ -1,3 +1,7 @@
+2001-07-07  Ben Elliston  <bje@redhat.com>
+
+	* m88k.h: Clean up and reformat. Remove unused code.
+
 2001-06-14  Geoffrey Keating  <geoffk@redhat.com>
 
 	* cgen.h (cgen_keyword): Add nonalpha_chars field.
diff --git a/include/opcode/m88k.h b/include/opcode/m88k.h
index 9d403e1fc69..3dd5b733d84 100644
--- a/include/opcode/m88k.h
+++ b/include/opcode/m88k.h
@@ -1,5 +1,5 @@
-/* Table of opcodes for the motorola 88k family.
-   Copyright 1989, 1990, 1991, 1993 Free Software Foundation, Inc.
+/* Table of opcodes for the Motorola M88k family.
+   Copyright 1989, 1990, 1991, 1993, 2001 Free Software Foundation, Inc.
 
 This file is part of GDB and GAS.
 
@@ -34,22 +34,6 @@ Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.  */
  *	pointer to the next instruction in the linked list.  These pointers
  *	are initialized by init_disasm().
  *
- *				Structure Format
- *
- *       struct INSTAB {
- *          UPINT opcode;
- *          char *mnemonic;
- *          struct OPSPEC op1,op2,op3;
- *          struct SIM_FLAGS flgs;
- *          struct INSTAB *next;
- *       }
- *
- *       struct OPSPEC {
- *          UPINT offset:5;
- *          UPINT width:6;
- *          UPINT type:5;
- *       }
- *
  *				Revision History
  *
  *	Revision 1.0	11/08/85	Creation date
@@ -61,54 +45,52 @@ Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.  */
 
 #include <stdio.h>
 
+/* Define the number of bits in the primary opcode field of the instruction,
+   the destination field, the source 1 and source 2 fields.  */
 
-/*
- * This file contains the structures and constants needed to build the M88000
- * simulator.  It is the main include file, containing all the
- * structures, macros and definitions except for the floating point
- * instruction set.
- */
-
-/*
- * The following flag informs the Simulator as to what type of byte ordering
- * will be used. For instance, a BOFLAG = 1 indicates a DEC VAX and IBM type
- * of ordering shall be used.
-*/
+/* Size of opcode field.  */
+#define OP 8
 
-/* # define     BOFLAG   1 */                       /* BYTE ORDERING FLAG */
+/* Size of destination.  */
+#define DEST 6
 
-/* define the number of bits in the primary opcode field of the instruction,
- * the destination field, the source 1 and source 2 fields.
- */
-# define    OP       8                        /* size of opcode field */
-# define    DEST     6                        /* size of destination  */
-# define    SOURCE1  6                        /* size of source1      */
-# define    SOURCE2  6                        /* size of source2      */
+/* Size of source1.  */
+#define SOURCE1 6
 
-# define    REGs    32                        /* number of registers  */
+/* Size of source2.  */
+#define SOURCE2 6
 
-# define    WORD    long
-# define    FLAG    unsigned
-# define    STATE   short
+/* Number of registers.  */
+#define REGs 32
 
-# define    TRUE     1
-# define    FALSE    0
+/* Type definitions.  */
 
-# define    READ     0
-# define    WRITE    1
+typedef unsigned int UINT;
+#define    WORD    long
+#define    FLAG    unsigned
+#define    STATE   short
 
 /* The next four equates define the priorities that the various classes
  * of instructions have regarding writing results back into registers and
- * signalling exceptions.
- */
+ * signalling exceptions.  */
+
 /* PMEM is also defined in <sys/param.h> on Delta 88's.  Sigh!  */
 #undef PMEM
 
-# define    PINT  0   /* Integer Priority */
-# define    PFLT  1   /* Floating Point Priority */
-# define    PMEM  2   /* Memory Priority */
-# define    NA    3   /* Not Applicable, instruction doesnt write to regs */
-# define    HIPRI 3   /* highest of these priorities */
+/* Integer priority.  */
+#define    PINT  0
+
+/* Floating point priority.  */
+#define    PFLT  1
+
+/* Memory priority.  */
+#define    PMEM  2
+
+/* Not applicable, instruction doesn't write to regs.  */
+#define    NA    3
+
+/* Highest of these priorities.  */
+#define    HIPRI 3
 
 /* The instruction registers are an artificial mechanism to speed up
  * simulator execution.  In the real processor, an instruction register
@@ -122,231 +104,267 @@ Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.  */
  * Yes this wastes memory, but it executes much quicker.
  */
 
-struct IR_FIELDS {
-		    unsigned        op:OP,
-				    dest: DEST,
-				    src1: SOURCE1,
-				    src2: SOURCE2;
-			      int   ltncy,
-				    extime,
-				    wb_pri;     /* writeback priority     */
-		    unsigned        imm_flags:2,/* immediate size         */
-				    rs1_used:1, /* register source 1 used */
-				    rs2_used:1, /* register source 2 used */
-				    rsd_used:1, /* register source/dest. used */
-				    c_flag:1,   /* complement      */
-				    u_flag:1,   /* upper half word */
-				    n_flag:1,   /* execute next    */
-				    wb_flag:1,  /* uses writeback slot */
-				    dest_64:1,  /* dest size       */
-				    s1_64:1,    /* source 1 size   */
-				    s2_64:1,    /* source 2 size   */
-				    scale_flag:1, /* scaled register */
-				    brk_flg:1;
-                 };
-
-struct	mem_segs {
-	struct mem_wrd *seg;			/* pointer (returned by calloc) to segment */
-	unsigned long baseaddr;			/* base load address from file headers */
-	unsigned long endaddr;			/* Ending address of segment */
-	int	      flags;			/* segment control flags (none defined 12/5/86) */
+struct IR_FIELDS
+{
+  unsigned op:OP,
+    dest: DEST,
+    src1: SOURCE1,
+    src2: SOURCE2;
+  int ltncy,
+    extime,
+    /* Writeback priority.  */
+    wb_pri;
+  /* Immediate size.  */
+  unsigned        imm_flags:2,
+    /* Register source 1 used.  */
+    rs1_used:1,
+    /* Register source 2 used. */
+    rs2_used:1,
+    /* Register source/dest. used.  */
+    rsd_used:1,
+    /* Complement.  */
+    c_flag:1,
+    /* Upper half word.  */
+    u_flag:1,
+    /* Execute next.  */
+    n_flag:1,
+    /* Uses writeback slot.  */
+    wb_flag:1,
+    /* Dest size.  */
+    dest_64:1,
+    /* Source 1 size.  */
+    s1_64:1,
+    /* Source 2 size.  */
+    s2_64:1,
+    scale_flag:1,
+    /* Scaled register.  */
+    brk_flg:1;
+};
+
+struct	mem_segs
+{
+  /* Pointer (returned by calloc) to segment.  */
+  struct mem_wrd *seg;			
+
+  /* Base load address from file headers.  */
+  unsigned long baseaddr;			
+
+  /* Ending address of segment.  */
+  unsigned long endaddr;		
+
+  /* Segment control flags (none defined).  */	
+  int	      flags;			
 };
 
 #define	MAXSEGS		(10)			/* max number of segment allowed */
 #define	MEMSEGSIZE	(sizeof(struct mem_segs))/* size of mem_segs structure */
 
-
+#if 0
 #define BRK_RD		(0x01)			/* break on memory read */
 #define BRK_WR		(0x02)			/* break on memory write */
 #define BRK_EXEC	(0x04)			/* break on execution */
 #define	BRK_CNT		(0x08)			/* break on terminal count */
+#endif
 
+struct mem_wrd
+{
+  /* Simulator instruction break down.  */
+  struct IR_FIELDS opcode;
+  union {
+    /* Memory element break down.  */
+    unsigned long  l;
+    unsigned short s[2];
+    unsigned char  c[4];
+  } mem;
+};
 
-struct	mem_wrd {
-	struct IR_FIELDS opcode;		/* simulator instruction break down */
-	union {
-		unsigned long  l;		/* memory element break down */
-		unsigned short s[2];
-		unsigned char  c[4];
-	} mem;
+/* Size of each 32 bit memory model.  */
+#define	MEMWRDSIZE	(sizeof (struct mem_wrd))
+
+extern struct mem_segs memory[];
+extern struct PROCESSOR m78000;
+
+struct PROCESSOR
+{
+  unsigned WORD
+  /* Execute instruction pointer.  */
+  ip, 
+    /* Vector base register.  */
+    vbr,
+    /* Processor status register.  */
+    psr;
+  
+  /* Source 1.  */
+  WORD    S1bus,
+    /* Source 2.  */
+    S2bus,
+    /* Destination.  */
+    Dbus,
+    /* Data address bus.  */
+    DAbus,
+    ALU,
+    /* Data registers.  */
+    Regs[REGs],
+    /* Max clocks before reg is available.  */
+    time_left[REGs],
+    /* Writeback priority of reg.  */
+    wb_pri[REGs], 
+    /* Integer unit control regs.  */
+    SFU0_regs[REGs],
+    /* Floating point control regs.  */
+    SFU1_regs[REGs], 
+    Scoreboard[REGs],
+    Vbr;
+  unsigned WORD   scoreboard,
+    Psw,
+    Tpsw;
+  /* Waiting for a jump instruction.  */
+  FLAG   jump_pending:1;
 };
 
-#define	MEMWRDSIZE	(sizeof(struct mem_wrd))	/* size of each 32 bit memory model */
-
-/* External declarations */
-
-extern	struct mem_segs memory[];
-extern	struct PROCESSOR m78000;
-
-struct  PROCESSOR   {
-	     unsigned WORD
-			    ip,          /* execute instruction pointer */
-			    vbr,         /* vector base register */
-			    psr;         /* processor status register */
-
-		    WORD    S1bus, /* source 1 */
-                            S2bus, /* source 2 */
-                            Dbus,  /* destination */
-			    DAbus, /* data address bus */
-                            ALU,
-			    Regs[REGs],       /* data registers */
-			    time_left[REGs],  /* max clocks before reg is available */
-			    wb_pri[REGs],     /* writeback priority of reg */
-			    SFU0_regs[REGs],  /* integer unit control regs */
-			    SFU1_regs[REGs],  /* floating point control regs */
-			    Scoreboard[REGs],
-			    Vbr;
-	    unsigned WORD   scoreboard,
-			    Psw,
-			    Tpsw;
-		    FLAG   jump_pending:1;   /* waiting for a jump instr. */
-                    };
-
-# define    i26bit      1    /* size of immediate field */
-# define    i16bit      2
-# define    i10bit      3
-
-/* Definitions for fields in psr */
-
-# define mode  31
-# define rbo   30
-# define ser   29
-# define carry 28
-# define sf7m  11
-# define sf6m  10
-# define sf5m   9
-# define sf4m   8
-# define sf3m   7
-# define sf2m   6
-# define sf1m   5
-# define mam    4
-# define inm    3
-# define exm    2
-# define trm    1
-# define ovfm   0
-
-#define	    MODEMASK   (1<<(mode-1))
-# define    SILENT     0   /* simulate without output to crt */
-# define    VERBOSE    1   /* simulate in verbose mode */
-# define    PR_INSTR   2   /* only print instructions */
-
-# define    RESET      16 /* reset phase */
-
-# define    PHASE1     0  /* data path phases */
-# define    PHASE2     1
-
-/* the 1 clock operations */
-
-# define    ADDU        1
-# define    ADDC        2
-# define    ADDUC       3
-# define    ADD         4
-
-# define    SUBU    ADD+1
-# define    SUBB    ADD+2
-# define    SUBUB   ADD+3
-# define    SUB     ADD+4
-
-# define    AND_    ADD+5
-# define    OR      ADD+6
-# define    XOR     ADD+7
-# define    CMP     ADD+8
-
-/* the LOADS */
-
-# define    LDAB    CMP+1
-# define    LDAH    CMP+2
-# define    LDA     CMP+3
-# define    LDAD    CMP+4
-
-# define    LDB   LDAD+1
-# define    LDH   LDAD+2
-# define    LD    LDAD+3
-# define    LDD   LDAD+4
-# define    LDBU  LDAD+5
-# define    LDHU  LDAD+6
-
-/* the STORES */
-
-# define    STB    LDHU+1
-# define    STH    LDHU+2
-# define    ST     LDHU+3
-# define    STD    LDHU+4
-
-/* the exchange */
-
-# define    XMEMBU LDHU+5
-# define    XMEM   LDHU+6
-
-/* the branches */
-# define    JSR    STD+1
-# define    BSR    STD+2
-# define    BR     STD+3
-# define    JMP    STD+4
-# define    BB1    STD+5
-# define    BB0    STD+6
-# define    RTN    STD+7
-# define    BCND   STD+8
-
-/* the TRAPS */
-# define    TB1    BCND+1
-# define    TB0    BCND+2
-# define    TCND   BCND+3
-# define    RTE    BCND+4
-# define    TBND   BCND+5
-
-/* the MISC instructions */
-# define    MUL     TBND + 1
-# define    DIV     MUL  +2
-# define    DIVU    MUL  +3
-# define    MASK    MUL  +4
-# define    FF0     MUL  +5
-# define    FF1     MUL  +6
-# define    CLR     MUL  +7
-# define    SET     MUL  +8
-# define    EXT     MUL  +9
-# define    EXTU    MUL  +10
-# define    MAK     MUL  +11
-# define    ROT     MUL  +12
-
-/* control register manipulations */
-
-# define    LDCR    ROT  +1
-# define    STCR    ROT  +2
-# define    XCR     ROT  +3
-
-# define    FLDCR    ROT  +4
-# define    FSTCR    ROT  +5
-# define    FXCR     ROT  +6
-
-
-# define    NOP     XCR +1
-
-/* floating point instructions */
-
-# define    FADD    NOP +1
-# define    FSUB    NOP +2
-# define    FMUL    NOP +3
-# define    FDIV    NOP +4
-# define    FSQRT   NOP +5
-# define    FCMP    NOP +6
-# define    FIP     NOP +7
-# define    FLT     NOP +8
-# define    INT     NOP +9
-# define    NINT    NOP +10
-# define    TRNC    NOP +11
-# define    FLDC   NOP +12
-# define    FSTC   NOP +13
-# define    FXC    NOP +14
-
-# define UEXT(src,off,wid) ((((unsigned int)(src))>>(off)) & ((1<<(wid)) - 1))
-# define SEXT(src,off,wid) (((((int)(src))<<(32-((off)+(wid)))) >>(32-(wid))) )
-# define MAKE(src,off,wid) \
-  ((((unsigned int)(src)) & ((1<<(wid)) - 1)) << (off))
-
-# define opword(n) (unsigned long) (memaddr->mem.l)
-
-/*  Constants and Masks */
+/* Size of immediate field.  */
+
+#define    i26bit      1
+#define    i16bit      2
+#define    i10bit      3
+
+/* Definitions for fields in psr.  */
+
+#define mode  31
+#define rbo   30
+#define ser   29
+#define carry 28
+#define sf7m  11
+#define sf6m  10
+#define sf5m   9
+#define sf4m   8
+#define sf3m   7
+#define sf2m   6
+#define sf1m   5
+#define mam    4
+#define inm    3
+#define exm    2
+#define trm    1
+#define ovfm   0
+
+/* The 1 clock operations.  */
+
+#define    ADDU        1
+#define    ADDC        2
+#define    ADDUC       3
+#define    ADD         4
+
+#define    SUBU    ADD+1
+#define    SUBB    ADD+2
+#define    SUBUB   ADD+3
+#define    SUB     ADD+4
+
+#define    AND_    ADD+5
+#define    OR      ADD+6
+#define    XOR     ADD+7
+#define    CMP     ADD+8
+
+/* Loads.  */
+
+#define    LDAB    CMP+1
+#define    LDAH    CMP+2
+#define    LDA     CMP+3
+#define    LDAD    CMP+4
+
+#define    LDB   LDAD+1
+#define    LDH   LDAD+2
+#define    LD    LDAD+3
+#define    LDD   LDAD+4
+#define    LDBU  LDAD+5
+#define    LDHU  LDAD+6
+
+/* Stores.  */
+
+#define    STB    LDHU+1
+#define    STH    LDHU+2
+#define    ST     LDHU+3
+#define    STD    LDHU+4
+
+/* Exchange.  */
+
+#define    XMEMBU LDHU+5
+#define    XMEM   LDHU+6
+
+/* Branches.  */
+
+#define    JSR    STD+1
+#define    BSR    STD+2
+#define    BR     STD+3
+#define    JMP    STD+4
+#define    BB1    STD+5
+#define    BB0    STD+6
+#define    RTN    STD+7
+#define    BCND   STD+8
+
+/* Traps.  */
+
+#define    TB1    BCND+1
+#define    TB0    BCND+2
+#define    TCND   BCND+3
+#define    RTE    BCND+4
+#define    TBND   BCND+5
+
+/* Misc.  */
+
+#define    MUL     TBND + 1
+#define    DIV     MUL  +2
+#define    DIVU    MUL  +3
+#define    MASK    MUL  +4
+#define    FF0     MUL  +5
+#define    FF1     MUL  +6
+#define    CLR     MUL  +7
+#define    SET     MUL  +8
+#define    EXT     MUL  +9
+#define    EXTU    MUL  +10
+#define    MAK     MUL  +11
+#define    ROT     MUL  +12
+
+/* Control register manipulations.  */
+
+#define    LDCR    ROT  +1
+#define    STCR    ROT  +2
+#define    XCR     ROT  +3
+
+#define    FLDCR    ROT  +4
+#define    FSTCR    ROT  +5
+#define    FXCR     ROT  +6
+
+#define    NOP     XCR +1
+
+/* Floating point instructions.  */
+
+#define    FADD    NOP +1
+#define    FSUB    NOP +2
+#define    FMUL    NOP +3
+#define    FDIV    NOP +4
+#define    FSQRT   NOP +5
+#define    FCMP    NOP +6
+#define    FIP     NOP +7
+#define    FLT     NOP +8
+#define    INT     NOP +9
+#define    NINT    NOP +10
+#define    TRNC    NOP +11
+#define    FLDC   NOP +12
+#define    FSTC   NOP +13
+#define    FXC    NOP +14
+
+#define UEXT(src,off,wid) \
+  ((((unsigned int)(src)) >> (off)) & ((1 << (wid)) - 1))
+
+#define SEXT(src,off,wid) \
+  (((((int)(src))<<(32 - ((off) + (wid)))) >>(32 - (wid))) )
+
+#define MAKE(src,off,wid) \
+  ((((unsigned int)(src)) & ((1 << (wid)) - 1)) << (off))
+
+#define opword(n) (unsigned long) (memaddr->mem.l)
+
+/* Constants and masks.  */
 
 #define SFU0       0x80000000
 #define SFU1       0x84000000
@@ -360,72 +378,68 @@ struct  PROCESSOR   {
 #define CTRL       0x0000f000
 #define CTRLMASK   0xfc00f800
 
-/* Operands types */
+/* Operands types.  */
 
-enum operand_type {
+enum operand_type
+{
   HEX = 1,
   REG = 2,
   CONT = 3,
   IND = 3,
   BF = 4,
-  REGSC = 5    /* scaled register */,
-  CRREG = 6    /* control register */,
-  FCRREG = 7    /* floating point control register */,
+  /* Scaled register.  */
+  REGSC = 5,
+  /* Control register.  */
+  CRREG = 6,
+  /* Floating point control register.  */
+  FCRREG = 7,
   PCREL = 8,
   CONDMASK = 9,
-  XREG = 10, /* extended register */
-  DEC = 11, /* decimal */
+  /* Extended register.  */
+  XREG = 10,
+  /* Decimal.  */
+  DEC = 11
 };
 
-/* Hashing Specification */
+/* Hashing specification.  */
 
 #define HASHVAL     79
 
-/* Type definitions */
-
-typedef unsigned int UINT;
-
-/* Structure templates */
-
-#if never
-typedef struct {
-   unsigned int offset:5;
-   unsigned int width:6;
-   unsigned int type:5;
-} OPSPEC;
-#endif
+/* Structure templates.  */
 
-typedef struct {
-   unsigned int offset;
-   unsigned int width;
-   enum operand_type type;
+typedef struct
+{
+  unsigned int offset;
+  unsigned int width;
+  enum operand_type type;
 } OPSPEC;
 
-	struct SIM_FLAGS {
-	      int  ltncy,   /* latency (max number of clocks needed to execute) */
-		  extime,   /* execution time (min number of clocks needed to execute) */
-		  wb_pri;   /* writeback slot priority */
-   unsigned         op:OP,   /* simulator version of opcode */
-	     imm_flags:2,   /* 10,16 or 26 bit immediate flags */
-	      rs1_used:1,   /* register source 1 used */
-	      rs2_used:1,   /* register source 2 used */
-	      rsd_used:1,   /* register source/dest used */
-		c_flag:1,   /* complement */
-		u_flag:1,   /* upper half word */
-		n_flag:1,   /* execute next */
-	       wb_flag:1,   /* uses writeback slot */
-	       dest_64:1,   /* double precision dest */
-		 s1_64:1,   /* double precision source 1 */
-		 s2_64:1,   /* double precision source 2 */
-	    scale_flag:1;   /* register is scaled */
+struct SIM_FLAGS
+{
+  int  ltncy,   /* latency (max number of clocks needed to execute).  */
+    extime,   /* execution time (min number of clocks needed to execute).  */
+    wb_pri;   /* writeback slot priority.  */
+  unsigned         op:OP,   /* simulator version of opcode.  */
+    imm_flags:2,   /* 10,16 or 26 bit immediate flags.  */
+    rs1_used:1,   /* register source 1 used.  */
+    rs2_used:1,   /* register source 2 used.  */
+    rsd_used:1,   /* register source/dest used.  */
+    c_flag:1,   /* complement.  */
+    u_flag:1,   /* upper half word.  */
+    n_flag:1,   /* execute next.  */
+    wb_flag:1,   /* uses writeback slot.  */
+    dest_64:1,   /* double precision dest.  */
+    s1_64:1,   /* double precision source 1.  */
+    s2_64:1,   /* double precision source 2.  */
+    scale_flag:1;   /* register is scaled.  */
 };
 
 typedef struct INSTRUCTAB {
-   unsigned int  opcode;
-   char          *mnemonic;
-   OPSPEC        op1,op2,op3;
-   struct SIM_FLAGS flgs;
-   struct INSTRUCTAB    *next;
+  unsigned int  opcode;
+  char          *mnemonic;
+  OPSPEC        op1,op2,op3;
+  struct SIM_FLAGS flgs;
+  struct INSTRUCTAB    *next;
 } INSTAB;
 
 
@@ -623,7 +637,7 @@ static INSTAB  instructions[] = {
   {0x80008800,"fstcr       ",{16,5,REG}  ,{5,6,FCRREG} ,NO_OPERAND   , {1,1,PFLT,FSTC        ,0,0,1,1,0,0,0,1,0,0,0,0}   ,NULL },
   {0x8000c800,"fxcr        ",{21,5,REG}  ,{16,5,REG}   ,{5,6,FCRREG} , {1,1,PFLT,FXC         ,0,0,1,1,0,0,0,1,0,0,0,0}   ,NULL },
 
-/* The following are new for the 88110. */
+/* The following are new for the 88110.  */
 
   {0x8400aaa0,"fadd.ddd    ",{21,5,XREG} ,{16,5,XREG}  ,{0,5,XREG}, {0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0}, NULL },
   {0x8400aa80,"fadd.dds    ",{21,5,XREG} ,{16,5,XREG}  ,{0,5,XREG}, {0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0}, NULL },