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1.1 root 1: /*
2: Hatari
3:
1.1.1.4 root 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.
1.1 root 8: */
1.1.1.8 ! root 9: char Reset_rcsid[] = "Hatari $Id: reset.c,v 1.10 2005/08/21 21:13:43 thothy Exp $";
1.1 root 10:
11: #include "main.h"
12: #include "cart.h"
1.1.1.8 ! root 13: #include "dmaSnd.h"
1.1 root 14: #include "fdc.h"
15: #include "floppy.h"
16: #include "gemdos.h"
17: #include "ikbd.h"
18: #include "int.h"
19: #include "m68000.h"
20: #include "misc.h"
21: #include "mfp.h"
22: #include "psg.h"
23: #include "reset.h"
24: #include "screen.h"
25: #include "sound.h"
26: #include "stMemory.h"
27: #include "tos.h"
28: #include "video.h"
29:
1.1.1.2 root 30:
31: /*-----------------------------------------------------------------------*/
1.1 root 32: /*
33: Cold reset ST (reset memory, all registers and reboot)
34: */
1.1.1.4 root 35: int Reset_Cold(void)
1.1 root 36: {
1.1.1.7 root 37: Main_WarpMouse(sdlscrn->w/2, sdlscrn->h/2); /* Set mouse pointer to the middle of the screen */
38:
1.1.1.4 root 39: return Reset_ST(TRUE);
1.1 root 40: }
41:
1.1.1.2 root 42:
43: /*-----------------------------------------------------------------------*/
1.1 root 44: /*
45: Warm reset ST (reset registers, leave in same state and reboot)
46: */
1.1.1.4 root 47: int Reset_Warm(void)
1.1 root 48: {
1.1.1.4 root 49: return Reset_ST(FALSE);
1.1 root 50: }
51:
1.1.1.2 root 52:
53: /*-----------------------------------------------------------------------*/
1.1 root 54: /*
55: Reset ST emulator states, chips, interrupts and registers
56: */
1.1.1.4 root 57: int Reset_ST(BOOL bCold)
1.1 root 58: {
1.1.1.4 root 59: if (bCold)
60: {
61: int ret;
62:
63: STMemory_Clear(0x00000000, 0x00400000); /* Clear First 4Mb */
64: STMemory_Clear(0x00e00000, 0x00ffffff); /* Clear Upper memory */
65: STMemory_WriteLong(4, 0x00fc0000); /* Set reset vector */
66: STMemory_WriteLong(0, 0x0000f000); /* And reset stack pointer */
1.1.1.2 root 67:
68: Floppy_GetBootDrive(); /* Find which device to boot from(A: or C:) */
69: Cart_LoadImage(); /* Load program into cartridge memory. Used for gemdos loading */
1.1.1.4 root 70:
71: ret = TOS_LoadImage(); /* Load TOS, writes into cartridge memory */
72: if(ret)
73: {
74: return ret; /* If we can not load a TOS image, return now! */
75: }
1.1 root 76: }
1.1.1.2 root 77: Int_Reset(); /* Reset interrupts */
78: MFP_Reset(); /* Setup MFP chip */
79: Video_Reset(); /* Reset video */
1.1.1.4 root 80:
1.1.1.5 root 81: GemDOS_Reset(); /* Reset GEMDOS emulation */
1.1.1.4 root 82: if (bCold)
83: {
1.1.1.2 root 84: FDC_Reset(); /* Reset FDC */
1.1 root 85: }
1.1.1.4 root 86:
1.1.1.8 ! root 87: DmaSnd_Reset(bCold); /* Reset DMA sound */
1.1.1.2 root 88: PSG_Reset(); /* Reset PSG */
89: Sound_Reset(); /* Reset Sound */
90: IKBD_Reset(bCold); /* Keyboard */
91: Screen_Reset(); /* Reset screen */
92: M68000_Reset(bCold); /* Reset CPU */
1.1 root 93:
1.1.1.2 root 94: /* And VBL interrupt, MUST always be one interrupt ready to trigger */
1.1.1.4 root 95: Int_AddAbsoluteInterrupt(CYCLES_ENDLINE, INTERRUPT_VIDEO_ENDLINE);
96: Int_AddAbsoluteInterrupt(CYCLES_HBL, INTERRUPT_VIDEO_HBL);
97: Int_AddAbsoluteInterrupt(CYCLES_PER_FRAME, INTERRUPT_VIDEO_VBL);
98:
99: return 0;
1.1 root 100: }
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