"(BUSCC)"

src/cpu.c

@@ -326,7 +326,7 @@ static void Addr2RS( Nibble* d, Address a )
   ---------------------------------------------------------------------------*/
 
 /* Read a field of a DataRegister from memory */
-void ReadDAT( Nibble* d, Address s, int fs )
+static void ReadDAT( Nibble* d, Address s, int fs )
 {
     register int lo = cpu_status.fs_idx_lo[ fs ];
     register int hi = cpu_status.fs_idx_hi[ fs ];
@@ -336,14 +336,14 @@ void ReadDAT( Nibble* d, Address s, int fs )
 }
 
 /* Read a field of a DataRegister from memory, with immediate fs */
-void ReadDATImm( Nibble* d, Address s, int imm_fs )
+static void ReadDATImm( Nibble* d, Address s, int imm_fs )
 {
     for ( register int n = 0; n <= imm_fs; n++ )
         d[ n ] = ReadNibble( s++ );
 }
 
 /* Write a field of a DataRegister into memory */
-void WriteDAT( Address d, const Nibble* r, int fs )
+static void WriteDAT( Address d, const Nibble* r, int fs )
 {
     register int lo = cpu_status.fs_idx_lo[ fs ];
     register int hi = cpu_status.fs_idx_hi[ fs ];
@@ -353,7 +353,7 @@ void WriteDAT( Address d, const Nibble* r, int fs )
 }
 
 /* Write a field of a DataRegister into memory, with immediate fs */
-void WriteDATImm( Address d, const Nibble* r, int imm_fs )
+static void WriteDATImm( Address d, const Nibble* r, int imm_fs )
 {
     for ( register int n = 0; n <= imm_fs; n++ )
         WriteNibble( d++, r[ n ] );
@@ -400,7 +400,7 @@ static Address Get5NibblesAbs( Address pc )
 /* Fetch the lower 'n' nibbles of the D register pointed by 'd' from the
    current instruction body
 */
-void FetchD( Address* d, register int n )
+static void FetchD( Address* d, register int n )
 {
     register Address mask = ADDRESS_MASK;
     register Address v = 0x00000;
@@ -418,7 +418,7 @@ void FetchD( Address* d, register int n )
 /* Fetch 'n'+1 nibbles of the DataRegister r from the current instruction body,
    starting from the nibble pointed by the P register.
 */
-void FetchR( Nibble* r, register int n )
+static void FetchR( Nibble* r, register int n )
 {
     register int p = ( int )cpu_status.P;
 
@@ -432,7 +432,7 @@ void FetchR( Nibble* r, register int n )
 /*---------------------------------------------------------------------------
         Private functions: P register setting
   ---------------------------------------------------------------------------*/
-void SetP( Nibble n )
+static void SetP( Nibble n )
 {
     cpu_status.P = n;
 
@@ -958,13 +958,13 @@ static void SubRImm( register Nibble* r, int fs, Nibble v )
 /*---------------------------------------------------------------------------
         Private functions: DataRegister bit operations
   ---------------------------------------------------------------------------*/
-void ExecBIT0( Nibble* r, Nibble n ) { r[ n / 4 ] &= ~nibble_bit_mask[ n % 4 ]; }
+static void ExecBIT0( Nibble* r, Nibble n ) { r[ n / 4 ] &= ~nibble_bit_mask[ n % 4 ]; }
 
-void ExecBIT1( Nibble* r, Nibble n ) { r[ n / 4 ] |= nibble_bit_mask[ n % 4 ]; }
+static void ExecBIT1( Nibble* r, Nibble n ) { r[ n / 4 ] |= nibble_bit_mask[ n % 4 ]; }
 
-void TestBIT0( Nibble* r, Nibble n ) { cpu_status.carry = ( ( r[ n / 4 ] & nibble_bit_mask[ n % 4 ] ) == 0 ); }
+static void TestBIT0( Nibble* r, Nibble n ) { cpu_status.carry = ( ( r[ n / 4 ] & nibble_bit_mask[ n % 4 ] ) == 0 ); }
 
-void TestBIT1( Nibble* r, Nibble n ) { cpu_status.carry = ( ( r[ n / 4 ] & nibble_bit_mask[ n % 4 ] ) != 0 ); }
+static void TestBIT1( Nibble* r, Nibble n ) { cpu_status.carry = ( ( r[ n / 4 ] & nibble_bit_mask[ n % 4 ] ) != 0 ); }
 
 /*---------------------------------------------------------------------------
         Private functions: jumps/subroutine calls
@@ -2402,9 +2402,9 @@ static void ExecGroup_80BF( void )
 
 static void ExecGroup_80B( void )
 {
-    debug1( CPU_CHF_MODULE_ID, DEBUG_C_TRACE, CPU_I_CALLED, "ExecGroup_80B" );
+    debug1( CPU_CHF_MODULE_ID, DEBUG_C_TRACE, CPU_I_CALLED, "ExecGroup_80B (BUSCC)" );
 
-    if ( config.implement_BUSCC ) {
+    if ( config.enable_BUSCC ) {
         Nibble n = FetchNibble( cpu_status.PC++ );
 
         switch ( n ) {
@@ -2748,7 +2748,7 @@ static void ExecGroup_8( void )
         Private functions: dump
   ---------------------------------------------------------------------------*/
 
-const char* DumpR( Nibble* r )
+static const char* DumpR( Nibble* r )
 {
     static char b[ NIBBLE_PER_REGISTER + 1 ];
     static const char hex_char[ NIBBLE_PER_REGISTER ] = "0123456789ABCDEF";
@@ -3240,17 +3240,6 @@ void DumpCpuStatus( char ob[ DUMP_CPU_STATUS_OB_SIZE ] )
     ob += strlen( ob );
 }
 
-void DEBUG_print_cpu_instruction( void )
-{
-    if ( config.debug_level > 0 && config.debug_level & DEBUG_C_OPCODES ) {
-        char dob[ DISASSEMBLE_OB_SIZE ];
-
-        /* Dump PC and current instruction */
-        ( void )Disassemble( cpu_status.PC, dob );
-        fprintf( stderr, "%s\n", dob );
-    }
-}
-
 /* .+
 
 .title	      : OneStep
@@ -3279,13 +3268,18 @@ void DEBUG_print_cpu_instruction( void )
 void OneStep( void )
 {
     debug1( CPU_CHF_MODULE_ID, DEBUG_C_TRACE, CPU_I_EXECUTING, cpu_status.PC );
-    DEBUG_print_cpu_instruction();
 
-    Nibble n;
+    if ( config.debug_level > 0 && config.debug_level & DEBUG_C_OPCODES ) {
+        char dob[ DISASSEMBLE_OB_SIZE ];
+
+        /* Dump PC and current instruction */
+        ( void )Disassemble( cpu_status.PC, dob );
+        fprintf( stderr, "%s\n", dob );
+    }
+
     Address offset;
-
     /* Get first instruction nibble */
-    n = FetchNibble( cpu_status.PC++ );
+    Nibble n = FetchNibble( cpu_status.PC++ );
 
     switch ( n ) {
         case 0x0: /* Group_0 */

src/cpu.h

@@ -337,6 +337,5 @@ bool CpuHaltAllowed( void );              /* 3.13 */
 
 Address Disassemble( Address pc, char ob[ DISASSEMBLE_OB_SIZE ] ); /* dis.c */
 void DumpCpuStatus( char ob[ DUMP_CPU_STATUS_OB_SIZE ] );
-void DEBUG_print_cpu_instruction( void );
 
 #endif /*!_CPU_H*/

src/modules.c

@@ -1246,8 +1246,6 @@ void ModConfig( Address config_info )
     if ( mod == N_MOD ) {
         /* All modules are configured - Signal a warning */
         // FIXME: 48gx bugs here when running VERSION
-        // DEBUG_print_cpu_instruction();
-
         ChfGenerate( MOD_CHF_MODULE_ID, __FILE__, __LINE__, MOD_W_BAD_CONFIG, CHF_WARNING, config_info );
         ChfSignal( MOD_CHF_MODULE_ID );
     } else {

src/romram.c

@@ -230,8 +230,6 @@ void RomWrite( Address rel_address, Nibble datum )
     debug1( MOD_CHF_MODULE_ID, DEBUG_C_TRACE, MOD_I_CALLED, "RomWrite" );
 
     // FIXME: 48gx: saturn48gx-Mid <12>d (src/romram.c,235)-E-Write into ROM A[1B632] D[9]
-    // DEBUG_print_cpu_instruction();
-
     ChfGenerate( MOD_CHF_MODULE_ID, __FILE__, __LINE__, MOD_E_ROM_WRITE, CHF_ERROR, rel_address, datum );
     ChfSignal( MOD_CHF_MODULE_ID );
 }

src/ui4x/config.c

@@ -51,7 +51,7 @@ static config_t config = {
     .state_dir_path = ( char* )".",
 
     .debug_level = DEBUG_C_NONE,
-    .implement_BUSCC = false,
+    .enable_BUSCC = false,
 };
 
 lua_State* config_lua_values;
@@ -224,7 +224,7 @@ config_t* config_init( int argc, char* argv[] )
     int clopt_reset = -1;
     int clopt_monitor = -1;
     /* int clopt_batchXfer = -1; */
-    int clopt_implement_BUSCC = -1;
+    int clopt_enable_BUSCC = -1;
 
     char* clopt_state_dir_path = ( char* )".";
 
@@ -275,7 +275,7 @@ config_t* config_init( int argc, char* argv[] )
         {"debug-modules",        no_argument,       NULL,                   38611           },
         {"debug-trace",          no_argument,       NULL,                   38612           },
 
-        {"implement-BUSCC",      no_argument,       &clopt_implement_BUSCC, true            },
+        {"implement-BUSCC",      no_argument,       &clopt_enable_BUSCC,    true            },
 
         {0,                      0,                 0,                      0               }
     };
@@ -517,8 +517,8 @@ config_t* config_init( int argc, char* argv[] )
         config.monitor = clopt_monitor;
     /* if ( clopt_batchXfer != -1 ) */
     /*     config.batchXfer = clopt_batchXfer; */
-    if ( clopt_implement_BUSCC != -1 )
-        config.implement_BUSCC = clopt_implement_BUSCC;
+    if ( clopt_enable_BUSCC != -1 )
+        config.enable_BUSCC = clopt_enable_BUSCC;
 
     if ( config.model == MODEL_49G )
         config.black_lcd = true;

src/ui4x/config.h

@@ -51,7 +51,7 @@ typedef struct {
     char* port_2_file_name;
 
     int debug_level;
-    bool implement_BUSCC;
+    bool enable_BUSCC;
 } config_t;
 
 /*************/