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1.1.1.3 root 1: /*
1.1 root 2: * UAE - The Un*x Amiga Emulator
1.1.1.3 root 3: *
1.1 root 4: * Optimized blitter minterm function generator
1.1.1.3 root 5: *
1.1 root 6: * Copyright 1995,1996 Bernd Schmidt
7: * Copyright 1996 Alessandro Bissacco
8: */
9:
10: #include "sysconfig.h"
11: #include "sysdeps.h"
12:
1.1.1.2 root 13: #include "genblitter.h"
1.1 root 14:
15: /* Here is the minterm table used in blitter function generation */
1.1.1.3 root 16:
1.1 root 17: static unsigned char blttbl[]= {
18: 0x00, 0x0a, 0x2a, 0x30, 0x3a, 0x3c, 0x4a, 0x6a, 0x8a, 0x8c, 0x9a, 0xa8,
19: 0xaa, 0xb1, 0xca, 0xcc, 0xd8, 0xe2, 0xea, 0xf0, 0xfa, 0xfc
20: };
21:
22: static void generate_include(void)
23: {
24: int minterm;
1.1.1.5 root 25: printf("STATIC_INLINE uae_u32 blit_func(uae_u32 srca, uae_u32 srcb, uae_u32 srcc, uae_u8 mt)\n{\nswitch(mt){\n");
1.1 root 26: for (minterm = 0; minterm < 256; minterm++) {
27: printf("case 0x%x:\n", minterm);
1.1.1.2 root 28: printf("\treturn %s;\n", blitops[minterm].s);
1.1 root 29: }
30: printf("}\n");
31: printf("return 0;\n"); /* No, sir, it doesn't! */
32: printf("}\n");
33: }
34:
35: static void generate_func(void)
36: {
37: unsigned int i;
38: printf("#include \"sysconfig.h\"\n");
39: printf("#include \"sysdeps.h\"\n");
40: printf("#include \"options.h\"\n");
41: printf("#include \"custom.h\"\n");
1.1.1.2 root 42: printf("#include \"memory.h\"\n");
1.1 root 43: printf("#include \"blitter.h\"\n");
44: printf("#include \"blitfunc.h\"\n\n");
45:
1.1.1.3 root 46: for (i = 0; i < sizeof(blttbl); i++) {
1.1.1.2 root 47: int active = blitops[blttbl[i]].used;
1.1.1.3 root 48: int a_is_on = active & 1, b_is_on = active & 2, c_is_on = active & 4;
1.1.1.6 root 49: printf("void blitdofast_%x (uaecptr pta, uaecptr ptb, uaecptr ptc, uaecptr ptd, struct bltinfo *b)\n",blttbl[i]);
1.1 root 50: printf("{\n");
1.1.1.3 root 51: printf("int i,j;\n");
52: printf("uae_u32 totald = 0;\n");
1.1.1.6 root 53: #if 0
1.1.1.3 root 54: printf("if (currprefs.blits_32bit_enabled && b->hblitsize > 1");
55: if (a_is_on) printf(" && !b->blitashift && b->bltafwm==0xffff && b->bltalwm==0xffff");
56: if (b_is_on) printf(" && !b->blitbshift");
57: printf(") {\n");
58: if (a_is_on) printf("uae_u32 srca=((uae_u32)b->bltadat << 16) | b->bltadat;\n");
59: if (b_is_on) printf("uae_u32 srcb=((uae_u32)b->bltbdat << 16) | b->bltbdat;\n");
60: if (c_is_on) printf("uae_u32 srcc=((uae_u32)b->bltcdat << 16) | b->bltcdat;\n");
61: printf("uae_u32 dest;\n");
1.1 root 62: printf("int count=b->hblitsize/2, oddword=b->hblitsize&1;\n");
1.1.1.3 root 63: printf("for (j=0;j<b->vblitsize;j++) {\n");
64: printf("\tfor(i=0;i<count;i++) {\n");
65: if (a_is_on) printf("\t\tif (pta) {srca=*((uae_u32 *)pta); pta += 4;}\n");
66: if (b_is_on) printf("\t\tif (ptb) {srcb=*((uae_u32 *)ptb); ptb += 4;}\n");
67: if (c_is_on) printf("\t\tif (ptc) {srcc=*((uae_u32 *)ptc); ptc += 4;}\n");
1.1.1.2 root 68: printf("\t\tdest = %s;\n", blitops[blttbl[i]].s);
69: printf("\t\ttotald |= dest;\n");
1.1.1.3 root 70: printf("\t\tif (ptd) {*(uae_u32 *)ptd=dest; ptd += 4;}\n");
1.1 root 71: printf("\t}\n");
72: printf("\tif (oddword) {\n");
1.1.1.3 root 73: if (a_is_on) printf("\t\tif (pta) { srca=(uae_u32)*(uae_u16 *)pta; pta += 2; }\n");
74: if (b_is_on) printf("\t\tif (ptb) { srcb=(uae_u32)*(uae_u16 *)ptb; ptb += 2; }\n");
75: if (c_is_on) printf("\t\tif (ptc) { srcc=(uae_u32)*(uae_u16 *)ptc; ptc += 2; }\n");
1.1.1.2 root 76: printf("\t\tdest = %s;\n", blitops[blttbl[i]].s);
77: printf("\t\ttotald |= dest;\n");
1.1.1.3 root 78: printf("\t\tif (ptd) { *(uae_u16 *)ptd= dest; ptd += 2; }\n");
1.1 root 79: printf("\t}\n");
1.1.1.3 root 80: if (a_is_on) printf("\tif (pta) pta += b->bltamod;\n");
81: if (b_is_on) printf("\tif (ptb) ptb += b->bltbmod;\n");
1.1 root 82: if (c_is_on) printf("\tif (ptc) ptc += b->bltcmod;\n");
1.1.1.3 root 83: printf("\tif (ptd) ptd += b->bltdmod;\n");
1.1 root 84: printf("}\n");
1.1.1.3 root 85: if (a_is_on) printf("if (pta) b->bltadat = (*(pta-b->bltamod-2) << 8) | *(pta - b->bltamod - 1);\n"); /* Maybe not necessary, but I don't want problems */
1.1 root 86: if (b_is_on) printf("if (ptb) b->bltbdat = (*(ptb-b->bltbmod-2) << 8) | *(ptb - b->bltbmod - 1);\n");
87: if (c_is_on) printf("if (ptc) b->bltcdat = (*(ptc-b->bltcmod-2) << 8) | *(ptc - b->bltcmod - 1);\n");
88: printf("if (ptd) b->bltddat = (*(ptd-b->bltdmod-2) << 8) | *(ptd - b->bltdmod - 1);\n");
1.1.1.3 root 89:
1.1.1.2 root 90: printf("} else {\n");
1.1.1.6 root 91: #endif
1.1.1.3 root 92: if (a_is_on) printf("uae_u32 preva = 0;\n");
93: if (b_is_on) printf("uae_u32 prevb = 0, srcb = b->bltbhold;\n");
94: if (c_is_on) printf("uae_u32 srcc = b->bltcdat;\n");
95: printf("uae_u32 dstd=0;\n");
1.1.1.6 root 96: printf("uaecptr dstp = 0;\n");
1.1.1.2 root 97: printf("for (j = 0; j < b->vblitsize; j++) {\n");
1.1.1.4 root 98: printf("\tfor (i = 0; i < b->hblitsize; i++) {\n\t\tuae_u32 bltadat, srca;\n\n");
1.1.1.6 root 99: if (c_is_on) printf("\t\tif (ptc) { srcc = chipmem_wget (ptc); ptc += 2; }\n");
100: if (b_is_on) printf("\t\tif (ptb) {\n\t\t\tuae_u32 bltbdat = chipmem_wget (ptb); ptb += 2;\n");
1.1.1.3 root 101: if (b_is_on) printf("\t\t\tsrcb = (((uae_u32)prevb << 16) | bltbdat) >> b->blitbshift;\n");
1.1.1.2 root 102: if (b_is_on) printf("\t\t\tprevb = bltbdat;\n\t\t}\n");
1.1.1.6 root 103: if (a_is_on) printf("\t\tif (pta) { bltadat = chipmem_wget (pta); pta += 2; } else { bltadat = blt_info.bltadat; }\n");
1.1.1.2 root 104: if (a_is_on) printf("\t\tbltadat &= blit_masktable[i];\n");
1.1.1.3 root 105: if (a_is_on) printf("\t\tsrca = (((uae_u32)preva << 16) | bltadat) >> b->blitashift;\n");
1.1.1.2 root 106: if (a_is_on) printf("\t\tpreva = bltadat;\n");
1.1.1.6 root 107: printf("\t\tif (dstp) chipmem_wput (dstp, dstd);\n");
1.1.1.2 root 108: printf("\t\tdstd = (%s) & 0xFFFF;\n", blitops[blttbl[i]].s);
109: printf("\t\ttotald |= dstd;\n");
1.1.1.6 root 110: printf("\t\tif (ptd) { dstp = ptd; ptd += 2; }\n");
1.1 root 111: printf("\t}\n");
112: if (a_is_on) printf("\tif (pta) pta += b->bltamod;\n");
113: if (b_is_on) printf("\tif (ptb) ptb += b->bltbmod;\n");
114: if (c_is_on) printf("\tif (ptc) ptc += b->bltcmod;\n");
1.1.1.2 root 115: printf("\tif (ptd) ptd += b->bltdmod;\n");
1.1 root 116: printf("}\n");
1.1.1.2 root 117: if (b_is_on) printf("b->bltbhold = srcb;\n");
118: if (c_is_on) printf("b->bltcdat = srcc;\n");
1.1.1.6 root 119: printf("\t\tif (dstp) chipmem_wput (dstp, dstd);\n");
120: #if 0
1.1.1.3 root 121: printf("}\n");
1.1.1.6 root 122: #endif
1.1.1.3 root 123: printf("if (totald != 0) b->blitzero = 0;\n");
1.1 root 124: printf("}\n");
1.1.1.3 root 125:
1.1.1.6 root 126: printf("void blitdofast_desc_%x (uaecptr pta, uaecptr ptb, uaecptr ptc, uaecptr ptd, struct bltinfo *b)\n",blttbl[i]);
1.1 root 127: printf("{\n");
1.1.1.3 root 128: printf("uae_u32 totald = 0;\n");
1.1 root 129: printf("int i,j;\n");
1.1.1.6 root 130: #if 0
1.1.1.3 root 131: printf("if (currprefs.blits_32bit_enabled && b->hblitsize > 1");
132: if (a_is_on) printf(" && !b->blitashift && b->bltafwm==0xffff && b->bltalwm==0xffff");
133: if (b_is_on) printf(" && !b->blitbshift");
134: printf(") {\n");
135: if (a_is_on) printf("uae_u32 srca = ((uae_u32)b->bltadat << 16) | b->bltadat;\n");
136: if (b_is_on) printf("uae_u32 srcb = ((uae_u32)b->bltbdat << 16) | b->bltbdat;\n");
137: if (c_is_on) printf("uae_u32 srcc = ((uae_u32)b->bltcdat << 16) | b->bltcdat;\n");
138: printf("uae_u32 dest;\n");
1.1 root 139: printf("int count=b->hblitsize/2, oddword=b->hblitsize&1;\n");
1.1.1.3 root 140: printf("for (j=0;j<b->vblitsize;j++) {\n");
141: printf("\tfor(i=0;i<count;i++) {\n");
142: if (a_is_on) printf("\t\tif (pta) { srca=*((uae_u32 *)(pta-2)); pta -= 4;}\n");
143: if (b_is_on) printf("\t\tif (ptb) { srcb=*((uae_u32 *)(ptb-2)); ptb -= 4;}\n");
144: if (c_is_on) printf("\t\tif (ptc) { srcc=*((uae_u32 *)(ptc-2)); ptc -= 4;}\n");
1.1.1.2 root 145: printf("\t\tdest = %s;\n", blitops[blttbl[i]].s);
146: printf("\t\ttotald |= dest;\n");
1.1.1.3 root 147: printf("\t\tif (ptd) {*(uae_u32 *)(ptd-2)=dest; ptd -= 4;}\n");
148: printf("\t}\n");
1.1 root 149: printf("\tif (oddword) {\n");
1.1.1.3 root 150: if (a_is_on) printf("\t\tif (pta) { srca=(uae_u32)*(uae_u16 *)pta; pta -= 2; }\n");
151: if (b_is_on) printf("\t\tif (ptb) { srcb=(uae_u32)*(uae_u16 *)ptb; ptb -= 2; }\n");
152: if (c_is_on) printf("\t\tif (ptc) { srcc=(uae_u32)*(uae_u16 *)ptc; ptc -= 2; }\n");
1.1.1.2 root 153: printf("\t\tdest = %s;\n", blitops[blttbl[i]].s);
154: printf("\t\ttotald |= dest;\n");
1.1.1.3 root 155: printf("\t\tif (ptd) { *(uae_u16 *)ptd= dest; ptd -= 2; }\n");
1.1 root 156: printf("\t}\n");
1.1.1.3 root 157: if (a_is_on) printf("\tif (pta) pta -= b->bltamod;\n");
158: if (b_is_on) printf("\tif (ptb) ptb -= b->bltbmod;\n");
1.1 root 159: if (c_is_on) printf("\tif (ptc) ptc -= b->bltcmod;\n");
1.1.1.3 root 160: printf("\tif (ptd) ptd-=b->bltdmod;\n");
1.1 root 161: printf("}\n");
162: if (a_is_on) printf("if (pta) b->bltadat = (*(pta + b->bltamod + 2) << 8) | *(pta + b->bltamod + 1);\n"); /* Maybe not necessary, but I don't want problems */
163: if (b_is_on) printf("if (ptb) b->bltbdat = (*(ptb + b->bltbmod + 2) << 8) | *(ptb + b->bltbmod + 1);\n");
164: if (c_is_on) printf("if (ptc) b->bltcdat = (*(ptc + b->bltcmod + 2) << 8) | *(ptc + b->bltcmod + 1);\n");
165: printf("if (ptd) b->bltddat = (*(ptd + b->bltdmod + 2) << 8) | *(ptd + b->bltdmod + 1);\n");
1.1.1.3 root 166:
1.1.1.2 root 167: printf("} else {\n");
1.1.1.6 root 168: #endif
1.1.1.3 root 169: if (a_is_on) printf("uae_u32 preva = 0;\n");
170: if (b_is_on) printf("uae_u32 prevb = 0, srcb = b->bltbhold;\n");
171: if (c_is_on) printf("uae_u32 srcc = b->bltcdat;\n");
172: printf("uae_u32 dstd=0;\n");
1.1.1.6 root 173: printf("uaecptr dstp = 0;\n");
1.1.1.2 root 174: printf("for (j = 0; j < b->vblitsize; j++) {\n");
1.1.1.3 root 175: printf("\tfor (i = 0; i < b->hblitsize; i++) {\n\t\tuae_u32 bltadat, srca;\n");
1.1.1.6 root 176: if (c_is_on) printf("\t\tif (ptc) { srcc = chipmem_wget (ptc); ptc -= 2; }\n");
177: if (b_is_on) printf("\t\tif (ptb) {\n\t\t\tuae_u32 bltbdat = chipmem_wget (ptb); ptb -= 2;\n");
1.1.1.2 root 178: if (b_is_on) printf("\t\t\tsrcb = ((bltbdat << 16) | prevb) >> b->blitdownbshift;\n");
179: if (b_is_on) printf("\t\t\tprevb = bltbdat;\n\t\t}\n");
1.1.1.6 root 180: if (a_is_on) printf("\t\tif (pta) { bltadat = chipmem_wget (pta); pta -= 2; } else { bltadat = blt_info.bltadat; }\n");
1.1.1.2 root 181: if (a_is_on) printf("\t\tbltadat &= blit_masktable[i];\n");
1.1.1.3 root 182: if (a_is_on) printf("\t\tsrca = (((uae_u32)bltadat << 16) | preva) >> b->blitdownashift;\n");
1.1.1.2 root 183: if (a_is_on) printf("\t\tpreva = bltadat;\n");
1.1.1.6 root 184: printf("\t\tif (dstp) chipmem_wput (dstp, dstd);\n");
1.1.1.2 root 185: printf("\t\tdstd = (%s) & 0xFFFF;\n", blitops[blttbl[i]].s);
186: printf("\t\ttotald |= dstd;\n");
1.1.1.6 root 187: printf("\t\tif (ptd) { dstp = ptd; ptd -= 2; }\n");
1.1 root 188: printf("\t}\n");
1.1.1.2 root 189: if (a_is_on) printf("\tif (pta) pta -= b->bltamod;\n");
190: if (b_is_on) printf("\tif (ptb) ptb -= b->bltbmod;\n");
191: if (c_is_on) printf("\tif (ptc) ptc -= b->bltcmod;\n");
192: printf("\tif (ptd) ptd -= b->bltdmod;\n");
1.1 root 193: printf("}\n");
1.1.1.2 root 194: if (b_is_on) printf("b->bltbhold = srcb;\n");
195: if (c_is_on) printf("b->bltcdat = srcc;\n");
1.1.1.6 root 196: printf("\t\tif (dstp) chipmem_wput (dstp, dstd);\n");
197: #if 0
1.1 root 198: printf("}\n");
1.1.1.6 root 199: #endif
1.1.1.3 root 200: printf("if (totald != 0) b->blitzero = 0;\n");
1.1 root 201: printf("}\n");
202: }
203: }
1.1.1.3 root 204:
1.1 root 205: static void generate_table(void)
206: {
207: unsigned int index = 0;
208: unsigned int i;
209: printf("#include \"sysconfig.h\"\n");
210: printf("#include \"sysdeps.h\"\n");
211: printf("#include \"options.h\"\n");
212: printf("#include \"custom.h\"\n");
1.1.1.2 root 213: printf("#include \"memory.h\"\n");
1.1 root 214: printf("#include \"blitter.h\"\n");
215: printf("#include \"blitfunc.h\"\n\n");
216: printf("blitter_func *blitfunc_dofast[256] = {\n");
217: for (i = 0; i < 256; i++) {
218: if (index < sizeof(blttbl) && i == blttbl[index]) {
219: printf("blitdofast_%x",i);
220: index++;
221: }
222: else printf("0");
223: if (i < 255) printf(", ");
224: if ((i & 7) == 7) printf("\n");
225: }
226: printf("};\n\n");
1.1.1.3 root 227:
1.1 root 228: index = 0;
229: printf("blitter_func *blitfunc_dofast_desc[256] = {\n");
230: for (i = 0; i < 256; i++) {
231: if (index < sizeof(blttbl) && i == blttbl[index]) {
232: printf("blitdofast_desc_%x",i);
233: index++;
234: }
235: else printf("0");
236: if (i < 255) printf(", ");
237: if ((i & 7) == 7) printf("\n");
238: }
239: printf("};\n");
240: }
241:
242: static void generate_header(void)
243: {
244: unsigned int i;
245: for (i = 0; i < sizeof(blttbl); i++) {
246: printf("extern blitter_func blitdofast_%x;\n",blttbl[i]);
247: printf("extern blitter_func blitdofast_desc_%x;\n",blttbl[i]);
248: }
249: }
250:
251: int main(int argc, char **argv)
252: {
253: char mode = 'i';
1.1.1.2 root 254:
1.1 root 255: if (argc == 2) mode = *argv[1];
256: switch (mode) {
257: case 'i': generate_include();
258: break;
259: case 'f': generate_func();
260: break;
261: case 't': generate_table();
262: break;
263: case 'h': generate_header();
264: break;
265: default: abort();
266: }
267: return 0;
268: }
269:
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