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1.1 root 1: /*
2: * UAE - The U*nix Amiga Emulator
1.1.1.3 root 3: *
1.1 root 4: * UAE Library v0.1
1.1.1.3 root 5: *
1.1 root 6: * (c) 1996 Tauno Taipaleenmaki <[email protected]>
7: *
1.1.1.3 root 8: * Change UAE parameters and other stuff from inside the emulation.
1.1 root 9: */
10:
11: #include "sysconfig.h"
12: #include "sysdeps.h"
13:
14: #include <assert.h>
15: #include <string.h>
16:
17: #include "config.h"
18: #include "options.h"
1.1.1.9 root 19: #include "threaddep/thread.h"
1.1.1.3 root 20: #include "uae.h"
21: #include "include/memory.h"
1.1 root 22: #include "custom.h"
23: #include "newcpu.h"
24: #include "xwin.h"
25: #include "autoconf.h"
26: #include "disk.h"
1.1.1.3 root 27: #include "debug.h"
28: #include "gensound.h"
29: #include "picasso96.h"
1.1 root 30:
31: /*
32: * Returns UAE Version
33: */
1.1.1.4 root 34: static uae_u32 emulib_GetVersion (void)
1.1 root 35: {
1.1.1.3 root 36: return version;
1.1 root 37: }
38:
39: /*
40: * Resets your amiga
41: */
1.1.1.4 root 42: static uae_u32 emulib_HardReset (void)
1.1 root 43: {
1.1.1.11! root 44: uae_reset(1);
1.1.1.3 root 45: return 0;
1.1 root 46: }
47:
1.1.1.4 root 48: static uae_u32 emulib_Reset (void)
1.1 root 49: {
1.1.1.11! root 50: uae_reset(0);
1.1.1.3 root 51: return 0;
1.1 root 52: }
53:
54: /*
55: * Enables SOUND
56: */
1.1.1.3 root 57: static uae_u32 emulib_EnableSound (uae_u32 val)
1.1 root 58: {
1.1.1.3 root 59: if (!sound_available || currprefs.produce_sound == 2)
1.1 root 60: return 0;
61:
1.1.1.3 root 62: currprefs.produce_sound = val;
1.1 root 63: return 1;
64: }
65:
66: /*
67: * Enables FAKE JOYSTICK
68: */
1.1.1.3 root 69: static uae_u32 emulib_EnableJoystick (uae_u32 val)
1.1 root 70: {
1.1.1.5 root 71: currprefs.jport0 = val & 255;
72: currprefs.jport1 = (val >> 8) & 255;
1.1 root 73: return 1;
74: }
75:
76: /*
77: * Sets the framerate
78: */
1.1.1.3 root 79: static uae_u32 emulib_SetFrameRate (uae_u32 val)
1.1 root 80: {
1.1.1.3 root 81: if (val == 0)
1.1 root 82: return 0;
1.1.1.3 root 83: else if (val > 20)
1.1 root 84: return 0;
85: else {
1.1.1.6 root 86: currprefs.gfx_framerate = val;
1.1 root 87: return 1;
88: }
89: }
90:
91: /*
92: * Changes keyboard language settings
93: */
1.1.1.3 root 94: static uae_u32 emulib_ChangeLanguage (uae_u32 which)
1.1 root 95: {
1.1.1.8 root 96: if (which > 6)
1.1 root 97: return 0;
98: else {
1.1.1.3 root 99: switch (which) {
1.1 root 100: case 0:
1.1.1.3 root 101: currprefs.keyboard_lang = KBD_LANG_US;
1.1 root 102: break;
103: case 1:
1.1.1.8 root 104: currprefs.keyboard_lang = KBD_LANG_DK;
1.1 root 105: break;
106: case 2:
1.1.1.8 root 107: currprefs.keyboard_lang = KBD_LANG_DE;
1.1 root 108: break;
109: case 3:
1.1.1.8 root 110: currprefs.keyboard_lang = KBD_LANG_SE;
1.1 root 111: break;
112: case 4:
1.1.1.8 root 113: currprefs.keyboard_lang = KBD_LANG_FR;
1.1 root 114: break;
1.1.1.2 root 115: case 5:
1.1.1.8 root 116: currprefs.keyboard_lang = KBD_LANG_IT;
117: break;
118: case 6:
1.1.1.3 root 119: currprefs.keyboard_lang = KBD_LANG_ES;
1.1.1.2 root 120: break;
1.1 root 121: default:
122: break;
123: }
124: return 1;
125: }
126: }
127:
1.1.1.3 root 128: /* The following ones don't work as we never realloc the arrays... */
1.1 root 129: /*
1.1.1.3 root 130: * Changes chip memory size
1.1 root 131: * (reboots)
132: */
1.1.1.3 root 133: static uae_u32 emulib_ChgCMemSize (uae_u32 memsize)
1.1 root 134: {
1.1.1.3 root 135: if (memsize != 0x80000 && memsize != 0x100000 &&
1.1 root 136: memsize != 0x200000) {
137: memsize = 0x200000;
1.1.1.10 root 138: write_log ("Unsupported chipmem size!\n");
1.1 root 139: }
1.1.1.2 root 140: m68k_dreg(regs, 0) = 0;
1.1.1.3 root 141:
1.1.1.4 root 142: currprefs.chipmem_size = memsize;
1.1.1.11! root 143: uae_reset(0);
1.1 root 144: return 1;
145: }
146:
147: /*
1.1.1.3 root 148: * Changes slow memory size
1.1 root 149: * (reboots)
150: */
1.1.1.3 root 151: static uae_u32 emulib_ChgSMemSize (uae_u32 memsize)
1.1 root 152: {
1.1.1.3 root 153: if (memsize != 0x80000 && memsize != 0x100000 &&
154: memsize != 0x180000 && memsize != 0x1C0000) {
155: memsize = 0;
1.1.1.10 root 156: write_log ("Unsupported bogomem size!\n");
1.1.1.3 root 157: }
1.1 root 158:
1.1.1.3 root 159: m68k_dreg(regs, 0) = 0;
1.1.1.4 root 160: currprefs.bogomem_size = memsize;
1.1.1.11! root 161: uae_reset (0);
1.1.1.3 root 162: return 1;
1.1 root 163: }
164:
165: /*
1.1.1.3 root 166: * Changes fast memory size
167: * (reboots)
1.1 root 168: */
1.1.1.3 root 169: static uae_u32 emulib_ChgFMemSize (uae_u32 memsize)
1.1 root 170: {
1.1.1.3 root 171: if (memsize != 0x100000 && memsize != 0x200000 &&
172: memsize != 0x400000 && memsize != 0x800000) {
173: memsize = 0;
1.1.1.10 root 174: write_log ("Unsupported fastmem size!\n");
1.1.1.3 root 175: }
176: m68k_dreg(regs, 0) = 0;
1.1.1.4 root 177: currprefs.fastmem_size = memsize;
1.1.1.11! root 178: uae_reset (0);
1.1.1.3 root 179: return 0;
1.1 root 180: }
181:
182: /*
183: * Inserts a disk
184: */
1.1.1.4 root 185: static uae_u32 emulib_InsertDisk (uaecptr name, uae_u32 drive)
1.1 root 186: {
1.1.1.3 root 187: int i = 0;
188: char real_name[256];
189:
1.1 root 190: if (drive > 3)
191: return 0;
192:
1.1.1.3 root 193: while ((real_name[i] = get_byte (name + i)) != 0 && i++ != 254)
194: ;
1.1 root 195:
1.1.1.3 root 196: if (i == 255)
197: return 0; /* ENAMETOOLONG */
1.1 root 198:
1.1.1.3 root 199: strcpy (changed_prefs.df[drive], real_name);
1.1 root 200:
1.1.1.3 root 201: return 1;
1.1 root 202: }
203:
204: /*
205: * Exits the emulator
206: */
1.1.1.4 root 207: static uae_u32 emulib_ExitEmu (void)
1.1 root 208: {
1.1.1.3 root 209: uae_quit ();
210: return 1;
1.1 root 211: }
212:
213: /*
214: * Gets UAE Configuration
215: */
1.1.1.4 root 216: static uae_u32 emulib_GetUaeConfig (uaecptr place)
1.1 root 217: {
1.1.1.3 root 218: int i,j;
1.1 root 219:
1.1.1.4 root 220: put_long (place, version);
221: put_long (place + 4, allocated_chipmem);
222: put_long (place + 8, allocated_bogomem);
223: put_long (place + 12, allocated_fastmem);
1.1.1.6 root 224: put_long (place + 16, currprefs.gfx_framerate);
1.1.1.4 root 225: put_long (place + 20, currprefs.produce_sound);
1.1.1.5 root 226: put_long (place + 24, currprefs.jport0 | (currprefs.jport1 << 8));
1.1.1.4 root 227: put_long (place + 28, currprefs.keyboard_lang);
228: if (disk_empty (0))
229: put_byte (place + 32, 0);
1.1.1.3 root 230: else
1.1.1.4 root 231: put_byte (place + 32, 1);
232: if (disk_empty (1))
233: put_byte (place + 33, 0);
1.1.1.3 root 234: else
1.1.1.4 root 235: put_byte (place + 33, 1);
1.1.1.3 root 236: if (disk_empty(2))
1.1.1.4 root 237: put_byte (place + 34, 0);
1.1.1.3 root 238: else
1.1.1.4 root 239: put_byte (place + 34, 1);
1.1.1.3 root 240: if (disk_empty(3))
1.1.1.4 root 241: put_byte (place + 35, 0);
1.1.1.3 root 242: else
1.1.1.4 root 243: put_byte (place + 35, 1);
1.1.1.3 root 244:
245: for (i = 0; i < 256; i++) {
1.1.1.4 root 246: put_byte ((place + 36 + i), currprefs.df[0][i]);
247: put_byte ((place + 36 + i + 256), currprefs.df[1][i]);
248: put_byte ((place + 36 + i + 512), currprefs.df[2][i]);
249: put_byte ((place + 36 + i + 768), currprefs.df[3][i]);
1.1.1.3 root 250: }
251: return 1;
1.1 root 252: }
253:
254: /*
255: * Sets UAE Configuration
1.1.1.3 root 256: *
1.1 root 257: * NOT IMPLEMENTED YET
258: */
1.1.1.4 root 259: static uae_u32 emulib_SetUaeConfig (uaecptr place)
1.1 root 260: {
1.1.1.3 root 261: return 1;
1.1 root 262: }
263:
264: /*
265: * Gets the name of the disk in the given drive
266: */
1.1.1.4 root 267: static uae_u32 emulib_GetDisk (uae_u32 drive, uaecptr name)
1.1 root 268: {
269: int i;
1.1.1.3 root 270: if (drive > 3)
1.1 root 271: return 0;
272:
1.1.1.3 root 273: for (i = 0;i < 256; i++) {
274: put_byte (name + i, currprefs.df[drive][i]);
1.1 root 275: }
276: return 1;
277: }
278:
279: /*
280: * Enter debugging state
281: */
1.1.1.4 root 282: static uae_u32 emulib_Debug (void)
1.1 root 283: {
1.1.1.3 root 284: activate_debugger ();
1.1 root 285: return 1;
286: }
287:
1.1.1.3 root 288: /* We simply find the first "text" hunk, get the offset of its actual code segment (20 bytes away)
289: * and add that offset to the base address of the object. Now we've got code to execute.
290: *
291: * @@@ Brian: does anything actually use this yet?
1.1.1.5 root 292: * @@@ Bernd: Not yet. It needs to get much better. Should spawn off a seperate task to handle the
293: * function, and then somehow "signal" the Amiga caller that completion or error has
294: * occurred. I don't know how to do that, so right now it is a synchronous call. Yuck!
295: * Would be nice to implement jpg decompression functionality for the Amiga which used
296: * the UAE Host to do all the work, for example.
297: * @@@ Brian: I disabled it to prevent people from starting to use it - if that happens, we're
298: * stuck with this.
1.1.1.3 root 299: */
300: static uae_u32 FindFunctionInObject (uae_u8 *objectptr)
1.1 root 301: {
1.1.1.3 root 302: uae_u8 *text_hdr;
303: uae_u8 offset;
304: text_hdr = (uae_u8 *)strstr ("text", (char *)objectptr);
305: if (text_hdr != 0) {
306: offset = *(text_hdr + 19);
307: return (uae_u32)(objectptr + offset);
308: }
309: return 0;
1.1 root 310: }
311:
1.1.1.3 root 312: #define CREATE_NATIVE_FUNC_PTR uae_u32 (* native_func)( uae_u32, uae_u32, uae_u32, uae_u32, uae_u32, uae_u32, uae_u32, \
313: uae_u32, uae_u32, uae_u32, uae_u32, uae_u32, uae_u32)
314: #define SET_NATIVE_FUNC(x) native_func = (uae_u32 (*)(uae_u32, uae_u32, uae_u32, uae_u32, uae_u32, uae_u32, uae_u32, uae_u32, uae_u32, uae_u32, uae_u32, uae_u32, uae_u32))(x)
315: #define CALL_NATIVE_FUNC( d1,d2,d3,d4,d5,d6,d7,a1,a2,a3,a4,a5,a6 ) if(native_func) native_func( d1,d2,d3,d4,d5,d6,d7,a1,a2,a3,a4,a5,a6 )
316: /* A0 - Contains a ptr to the native .obj data. This ptr is Amiga-based. */
317: /* We simply find the first function in this .obj data, and execute it. */
1.1.1.4 root 318: static uae_u32 emulib_ExecuteNativeCode (void)
1.1.1.3 root 319: {
1.1.1.5 root 320: #if 0
1.1.1.3 root 321: uaecptr object_AAM = m68k_areg( regs, 0 );
322: uae_u32 d1 = m68k_dreg( regs, 1 );
323: uae_u32 d2 = m68k_dreg( regs, 2 );
324: uae_u32 d3 = m68k_dreg( regs, 3 );
325: uae_u32 d4 = m68k_dreg( regs, 4 );
326: uae_u32 d5 = m68k_dreg( regs, 5 );
327: uae_u32 d6 = m68k_dreg( regs, 6 );
328: uae_u32 d7 = m68k_dreg( regs, 7 );
329: uae_u32 a1 = m68k_areg( regs, 1 );
330: uae_u32 a2 = m68k_areg( regs, 2 );
331: uae_u32 a3 = m68k_areg( regs, 3 );
332: uae_u32 a4 = m68k_areg( regs, 4 );
333: uae_u32 a5 = m68k_areg( regs, 5 );
334: uae_u32 a6 = m68k_areg( regs, 6 );
335:
336: uae_u8* object_UAM = NULL;
337: CREATE_NATIVE_FUNC_PTR;
338:
339: if( get_mem_bank( object_AAM ).check( object_AAM, 1 ) )
340: object_UAM = get_mem_bank( object_AAM).xlateaddr( object_AAM );
341:
342: if( object_UAM )
343: {
344: SET_NATIVE_FUNC( FindFunctionInObject( object_UAM ) );
345: CALL_NATIVE_FUNC( d1, d2, d3, d4, d5, d6, d7, a1, a2, a3, a4, a5, a6);
346: }
347: return 1;
1.1.1.5 root 348: #endif
349: return 0;
1.1.1.3 root 350: }
351:
352: static uae_u32 uaelib_demux (void)
1.1 root 353: {
1.1.1.3 root 354: #define ARG0 (get_long (m68k_areg (regs, 7) + 4))
355: #define ARG1 (get_long (m68k_areg (regs, 7) + 8))
356: #define ARG2 (get_long (m68k_areg (regs, 7) + 12))
357: #define ARG3 (get_long (m68k_areg (regs, 7) + 16))
358:
359: switch (ARG0) {
360: case 0: return emulib_GetVersion ();
361: case 1: return emulib_GetUaeConfig (ARG1);
362: case 2: return emulib_SetUaeConfig (ARG1);
363: case 3: return emulib_HardReset ();
364: case 4: return emulib_Reset ();
365: case 5: return emulib_InsertDisk (ARG1, ARG2);
366: case 6: return emulib_EnableSound (ARG1);
367: case 7: return emulib_EnableJoystick (ARG1);
368: case 8: return emulib_SetFrameRate (ARG1);
369: case 9: return emulib_ChgCMemSize (ARG1);
370: case 10: return emulib_ChgSMemSize (ARG1);
371: case 11: return emulib_ChgFMemSize (ARG1);
372: case 12: return emulib_ChangeLanguage (ARG1);
373: /* The next call brings bad luck */
374: case 13: return emulib_ExitEmu ();
375: case 14: return emulib_GetDisk (ARG1, ARG2);
376: case 15: return emulib_Debug ();
377:
378: #ifdef PICASSO96
1.1.1.4 root 379: case 16: return picasso_FindCard ();
380: case 17: return picasso_FillRect ();
381: case 18: return picasso_SetSwitch ();
382: case 19: return picasso_SetColorArray ();
383: case 20: return picasso_SetDAC ();
384: case 21: return picasso_SetGC ();
385: case 22: return picasso_SetPanning ();
386: case 23: return picasso_CalculateBytesPerRow ();
387: case 24: return picasso_BlitPlanar2Chunky ();
388: case 25: return picasso_BlitRect ();
389: case 26: return picasso_SetDisplay ();
390: case 27: return picasso_BlitTemplate ();
391: case 28: return picasso_BlitRectNoMaskComplete ();
392: case 29: return picasso_InitCard ();
393: case 30: return picasso_BlitPattern ();
394: case 31: return picasso_InvertRect ();
395: case 32: return picasso_BlitPlanar2Direct ();
396: case 34: return picasso_WaitVerticalSync ();
397: case 35: return allocated_gfxmem ? 1 : 0;
1.1.1.3 root 398: #endif
1.1 root 399:
1.1.1.4 root 400: case 69: return emulib_ExecuteNativeCode ();
1.1 root 401: }
402: return 0;
403: }
404:
405: /*
406: * Installs the UAE LIBRARY
407: */
1.1.1.4 root 408: void emulib_install (void)
1.1 root 409: {
1.1.1.3 root 410: uaecptr a = here ();
1.1.1.10 root 411: org (RTAREA_BASE + 0xFF60);
1.1.1.3 root 412: calltrap (deftrap (uaelib_demux));
413: dw (RTS);
414: org (a);
1.1 root 415: }
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