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Annotation of previous/src/cpu/hatari-glue.c, revision 1.1.1.3

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"
1.1.1.3 ! root       18: #include "sysReg.h"
1.1       root       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: int pendingInterrupts = 0;
                     30: 
                     31: 
                     32: /**
                     33:  * Reset custom chips
                     34:  */
                     35: void customreset(void)
                     36: {
                     37:        pendingInterrupts = 0;
                     38: 
                     39:        /* In case the 6301 was executing a custom program from its RAM */
                     40:        /* we must turn it back to the 'normal' mode. */
                     41: //     IKBD_Reset_ExeMode ();
                     42: 
                     43:        /* Reseting the GLUE video chip should also set freq/res register to 0 */
                     44:        Video_Reset_Glue ();
                     45: }
                     46: 
                     47: 
                     48: /**
1.1.1.3 ! root       49:  * Return interrupt number (1 - 7), 0 means no interrupt.
1.1       root       50:  * Note that the interrupt stays pending if it can't be executed yet
                     51:  * due to the interrupt level field in the SR.
                     52:  */
                     53: int intlev(void)
                     54: {
1.1.1.3 ! root       55:     /* Poll interrupt level from interrupt status and mask registers
        !            56:      * --> see sysReg.c
        !            57:      */
        !            58:     return get_interrupt_level();
1.1       root       59: }
                     60: 
                     61: /**
                     62:  * Initialize 680x0 emulation
                     63:  */
                     64: int Init680x0(void)
                     65: {
                     66:        currprefs.cpu_level = changed_prefs.cpu_level = ConfigureParams.System.nCpuLevel;
                     67: 
                     68:        switch (currprefs.cpu_level) {
                     69:                case 0 : currprefs.cpu_model = 68000; break;
                     70:                case 1 : currprefs.cpu_model = 68010; break;
                     71:                case 2 : currprefs.cpu_model = 68020; break;
                     72:                case 3 : currprefs.cpu_model = 68030; break;
                     73:                case 4 : currprefs.cpu_model = 68040; break;
                     74:                case 5 : currprefs.cpu_model = 68060; break;
                     75:                default: fprintf (stderr, "Init680x0() : Error, cpu_level unknown\n");
                     76:        }
1.1.1.3 ! root       77:     
        !            78:     currprefs.fpu_model = changed_prefs.fpu_model = ConfigureParams.System.n_FPUType;
        !            79:     switch (currprefs.fpu_model) {
        !            80:         case 68881: currprefs.fpu_revision = 0x1f; break;
        !            81:         case 68882: currprefs.fpu_revision = 0x20; break;
        !            82:         case 68040:
        !            83:             if (ConfigureParams.System.bTurbo)
        !            84:                 currprefs.fpu_revision = 0x41;
        !            85:             else
        !            86:                 currprefs.fpu_revision = 0x40;
        !            87:             break;
        !            88:                default: fprintf (stderr, "Init680x0() : Error, fpu_model unknown\n");
        !            89:     }
1.1       root       90:        
                     91:        currprefs.cpu_compatible = changed_prefs.cpu_compatible = ConfigureParams.System.bCompatibleCpu;
                     92:        currprefs.address_space_24 = changed_prefs.address_space_24 = ConfigureParams.System.bAddressSpace24;
                     93:        currprefs.cpu_cycle_exact = changed_prefs.cpu_cycle_exact = ConfigureParams.System.bCycleExactCpu;
                     94:        currprefs.fpu_strict = changed_prefs.fpu_strict = ConfigureParams.System.bCompatibleFPU;
1.1.1.3 ! root       95:     currprefs.mmu_model = changed_prefs.mmu_model = ConfigureParams.System.bMMU?changed_prefs.cpu_model:0;
        !            96: 
1.1.1.2   root       97:        write_log("Init680x0() called\n");
1.1       root       98: 
                     99:        init_m68k();
                    100: 
                    101:        return true;
                    102: }
                    103: 
                    104: 
                    105: /**
                    106:  * Deinitialize 680x0 emulation
                    107:  */
                    108: void Exit680x0(void)
                    109: {
                    110:        memory_uninit();
                    111: 
                    112:        free(table68k);
                    113:        table68k = NULL;
                    114: }

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