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Annotation of previous_trunk/src/cpu/hatari-glue.c, revision 1.1.1.1

1.1       root        1: /*
                      2:   Hatari - hatari-glue.c
                      3: 
                      4:   This file is distributed under the GNU Public License, version 2 or at
                      5:   your option any later version. Read the file gpl.txt for details.
                      6: 
                      7:   This file contains some code to glue the UAE CPU core to the rest of the
                      8:   emulator and Hatari's "illegal" opcodes.
                      9: */
                     10: const char HatariGlue_fileid[] = "Hatari hatari-glue.c : " __DATE__ " " __TIME__;
                     11: 
                     12: 
                     13: #include <stdio.h>
                     14: 
                     15: #include "main.h"
                     16: #include "configuration.h"
                     17: #include "video.h"
                     18: #include "sysReg.h"
                     19: 
                     20: #include "sysdeps.h"
                     21: #include "maccess.h"
                     22: #include "memory.h"
                     23: #include "newcpu.h"
                     24: #include "hatari-glue.h"
                     25: 
                     26: 
                     27: struct uae_prefs currprefs, changed_prefs;
                     28: 
                     29: 
                     30: 
                     31: /**
                     32:  * Return interrupt number (1 - 7), 0 means no interrupt.
                     33:  * Note that the interrupt stays pending if it can't be executed yet
                     34:  * due to the interrupt level field in the SR.
                     35:  */
                     36: int intlev(void) {
                     37:     /* Poll interrupt level from interrupt status and mask registers
                     38:      * --> see sysReg.c
                     39:      */
                     40:     return get_interrupt_level();
                     41: }
                     42: 
                     43: /**
                     44:  * Initialize 680x0 emulation
                     45:  */
                     46: int Init680x0(void) {
                     47:        currprefs.cpu_level = changed_prefs.cpu_level = ConfigureParams.System.nCpuLevel;
                     48: 
                     49:        switch (currprefs.cpu_level) {
                     50:                case 3 : currprefs.cpu_model = 68030; break;
                     51:                case 4 : currprefs.cpu_model = 68040; break;
                     52:                default: fprintf (stderr, "Init680x0() : Error, cpu_level not supported (%i)\n",currprefs.cpu_model);
                     53:        }
                     54:     
                     55:     currprefs.fpu_model = changed_prefs.fpu_model = ConfigureParams.System.n_FPUType;
                     56:     switch (currprefs.fpu_model) {
                     57:         case 68881: currprefs.fpu_revision = 0x1f; break;
                     58:         case 68882: currprefs.fpu_revision = 0x20; break;
                     59:         case 68040:
                     60:             if (ConfigureParams.System.bTurbo)
                     61:                 currprefs.fpu_revision = 0x41;
                     62:             else
                     63:                 currprefs.fpu_revision = 0x40;
                     64:             break;
                     65:                default: fprintf (stderr, "Init680x0() : Error, fpu_model unknown\n");
                     66:     }
                     67:        
                     68:        currprefs.cpu_compatible = changed_prefs.cpu_compatible = ConfigureParams.System.bCompatibleCpu;
                     69:        currprefs.fpu_strict = changed_prefs.fpu_strict = ConfigureParams.System.bCompatibleFPU;
                     70:     currprefs.mmu_model = changed_prefs.mmu_model = ConfigureParams.System.bMMU?changed_prefs.cpu_model:0;
                     71: 
                     72:        write_log("Init680x0() called\n");
                     73: 
                     74:        init_m68k();
                     75: 
                     76:        return true;
                     77: }
                     78: 
                     79: 
                     80: /**
                     81:  * Deinitialize 680x0 emulation
                     82:  */
                     83: void Exit680x0(void)
                     84: {
                     85:        memory_uninit();
                     86: 
                     87:        free(table68k);
                     88:        table68k = NULL;
                     89: }

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