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Annotation of frontvm/hardware/reset.c, revision 1.1.1.1

1.1       root        1: /*
                      2:   Hatari
                      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:   Reset emulation state.
                      8: */
                      9: 
                     10: #include "main.h"
                     11: #include "decode.h"
                     12: #include "hostcall.h"
                     13: #include "int.h"
                     14: #include "m68000.h"
                     15: #include "misc.h"
                     16: #include "reset.h"
                     17: #include "screen.h"
                     18: #include "audio.h"
                     19: #include "stMemory.h"
                     20: #include "video.h"
                     21: #include "loadfe2.h"
                     22: #include "dialog.h"
                     23: 
                     24: unsigned long STRamEnd;                 /* End of ST Ram, above this address is no-mans-land and hardware vectors */
                     25: 
                     26: /*-----------------------------------------------------------------------*/
                     27: /*
                     28:   Set default memory configuration, connected floppies and memory size
                     29: */
                     30: void SetDefaultMemoryConfig(void)
                     31: {
                     32:   STMemory_WriteLong(0x42e, MEMORY_SIZE);          /* phys top */
                     33:   
                     34:   /* Set memory range */
                     35:   STRamEnd = MEMORY_SIZE;  /* Set end of RAM */
                     36: 
                     37:   /* Initialize the memory banks: */
                     38:   memory_uninit();
                     39:   memory_init(STRamEnd, 0, MEMORY_SIZE);
                     40: }
                     41: 
                     42: 
                     43: /*-----------------------------------------------------------------------*/
                     44: /*
                     45:   Reset ST emulator states, chips, interrupts and registers
                     46: */
                     47: int Reset_VM ()
                     48: {
                     49:   STMemory_Clear(0x00000000, MEMORY_SIZE);   /* Clear First 4Mb */
                     50: 
                     51:   SetDefaultMemoryConfig();
                     52:   LoadFE2 ();
                     53:   STMemory_WriteLong(4, FE2BASE);        /* Set reset vector */
                     54:   STMemory_WriteLong(0, MEMORY_SIZE);        /* And reset stack pointer */
                     55:   
                     56:   Int_Reset();                  /* Reset interrupts */
                     57:   Video_Reset();                /* Reset video */
                     58: 
                     59:   GemDOS_Reset();               /* Reset GEMDOS emulation */
                     60: 
                     61:   Audio_Reset();                /* Reset Sound */
                     62:   Screen_Reset();               /* Reset screen */
                     63:   M68000_Reset(TRUE);          /* Reset CPU */
                     64: 
                     65:   /* And keyboard check for debugger */
                     66: #ifdef USE_DEBUGGER
                     67:   Int_AddAbsoluteInterrupt(CYCLES_DEBUGGER, INTERRUPT_DEBUGGER);
                     68: #endif
                     69: 
                     70:   return 0;
                     71: }

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