1: / db1 -- debugger 2: 3: fpp = 0 4: eae = 0 5: ldfps = 170100^tst 6: 7: 8: db: 9: mov sp,r5 10: mov (r5)+,r4 11: tst (r5)+ 12: cmp r4,$2 13: blt 1f 14: mov (r5),dbfile 15: mov (r5),odbfil 16: mov (r5)+,namfil 17: cmp r4,$2 18: beq 1f 19: mov (r5)+,namfil 20: 1: 21: sys open; dbfile: core; 0 22: bec 9f 23: jmp fnfnd 24: 9: 25: mov r0,dbfin 26: clr dbfout 27: sys open; odbfil:core; 1 28: bes 1f 29: mov r0,dbfout 30: 1: 31: sys open; namfil: a.out; 0 32: bes 1f 33: mov r0,r1 34: mov r0,symfin 35: sys read; nambuf; 20 36: cmp nambuf,nobjmagic 37: beq 2f 38: cmp nambuf,objmagic 39: bne 1f 40: 2: 41: mov nambuf+2,r0 / text 42: add nambuf+4,r0 / data 43: cmp nambuf+16,$1 / relocation? 44: beq 6f 45: asl r0 / sym origin 46: 6: 47: add $20,r0 48: mov r0,0f 49: mov r1,r0 50: sys seek; 0:..; 0 51: mov nambuf+10,r0 / symbol size 52: cmp r0,$maxsym 53: blos 3f 54: mov $maxsym,r0 55: 3: 56: add r0,0f 57: sys break; 0: nambuf 58: mov r0,0f 59: mov r1,r0 60: sys read; nambuf; 0:.. 61: add $nambuf,r0 62: mov r0,namsiz 63: 1: 64: jsr r5,get; zero / test new object 65: cmp r0,nobjmagic 66: beq 2f 67: cmp r0,objmagic 68: bne 1f 69: 2: 70: mov $20,getoff 71: 1: 72: mov sp,savsp 73: sys signal; 2; 1 74: ror r0 75: bcs 1f 76: sys signal; 2; errexit 77: 1: 78: cmp r4,$2 / arg count 79: beq 9f / not core image 80: cmp r4,$4 / no-core image flag 81: beq 9f 82: mov $1024.,getoff 83: mov dbfin,r0 84: sys seek; 0; 0 85: mov dbfin,r0 86: sys read; regbuf; 1024. 87: mov txtsiz,r0 88: ash $6,r0 89: mov r0,txtsiz 90: add $17777,r0 91: bic $17777,r0 92: mov r0,rtxtsiz 93: mov datsiz,r0 94: ash $6,r0 95: mov r0,datsiz 96: mov stksiz,r0 97: ash $6,r0 98: mov r0,stksiz 99: mov *locfpsr,r0 100: bic $!200,r0 101: mov r0,fpsr 102: br loop 103: 9: 104: loop: 105: clr error 106: jsr pc,readlin 107: jsr pc,readexp 108: tst error 109: bne errexit 110: mov $1,count 111: cmpb r0,$', 112: bne 2f 113: movb (r4)+,r0 114: mov addres,-(sp) 115: mov adrflg,-(sp) 116: jsr pc,readexp 117: mov addres,count 118: mov (sp)+,adrflg 119: mov (sp)+,addres 120: tst error 121: bne errexit 122: 2: 123: movb (r4),r0 124: jsr pc,command 125: tst error 126: beq loop 127: errexit: 128: sys signal; 2; errexit 129: mov savsp,sp 130: jsr r5,mesg; <?\n\0>; .even 131: br loop 132: 133: fnfnd: 134: jsr r5,mesg; <File not found.\n\0>; .even 135: ex: 136: sys exit 137: 138: readlin: 139: mov $inbuf,r4 140: 1: 141: mov ttyfin,r0 142: sys read; ch; 1 143: tst r0 144: beq ex 145: cmpb ch,$'\n 146: beq 1f 147: movb ch,(r4)+ 148: br 1b 149: 1: 150: clrb (r4) 151: mov $inbuf,r4 152: rts pc 153: 154: switch: 155: mov (r5)+,r1 156: 2: 157: cmp r0,(r1)+ 158: bne 1f 159: tst (sp)+ 160: jmp *(r1) 161: 1: 162: tst (r1)+ 163: bne 2b 164: rts r5 165: 166: readexp: 167: mov $'+,lastop 168: clr addres 169: clr starmod 170: clr taddr 171: clr adrflg 172: nextxp: 173: movb (r4)+,r0 174: cmp r0,$'0 175: blt 1f 176: cmp r0,$'9 177: ble numin 178: cmp r0,$'a 179: blt 1f 180: cmp r0,$'z 181: bgt 1f 182: jmp letin 183: 1: 184: cmp r0,$'a-40 185: blt 1f 186: cmp r0,$'z-40 187: ble letin 188: 1: 189: jsr r5,switch; expsw 190: tstb -(r4) 191: tst starmod 192: beq 1f 193: mov dot,taddr 194: br operand 195: 1: 196: rts pc 197: 198: expsw: 199: '+; opex 200: '-; opex 201: ' ; nextxp 202: '.; letin 203: '_; letin 204: '^; circumf 205: '*; star 206: -1; 0 207: 208: star: 209: mov pc,starmod 210: br nextxp 211: 212: operand: 213: inc adrflg 214: tst starmod 215: beq 1f 216: clr starmod 217: bis bytemod,error 218: jsr r5,get; taddr 219: tst error 220: bne 1f 221: mov r0,taddr 222: 1: 223: cmp lastop,$'+ 224: beq 1f 225: sub taddr,addres 226: br 2f 227: 1: 228: add taddr,addres 229: 2: 230: mov $'+,lastop 231: br nextxp 232: 233: circumf: 234: mov dot,taddr 235: dec taddr 236: tst bytemod 237: bne operand 238: dec taddr 239: br operand 240: 241: numin: 242: clr r1 243: clr r3 244: 1: 245: sub $'0,r0 246: asl r1 247: asl r1 248: asl r1 249: mpy $10.,r3 250: bis r0,r1 251: add r0,r3 252: movb (r4)+,r0 253: cmp r0,$'0 254: blo 1f 255: cmp r0,$'9 256: blos 1b 257: 1: 258: cmp r0,$'. 259: bne 1f 260: mov r3,r1 261: inc r4 262: 1: 263: mov r1,taddr 264: dec r4 265: br operand 266: 267: letin: 268: dec r4 269: mov $nambuf,namstrt 270: letin1: 271: mov $symbol,r1 272: clr (r1)+ 273: clr (r1)+ 274: clr (r1)+ 275: clr (r1) 276: mov $symbol,r1 277: mov $8.,-(sp) 278: br 2f 279: 1: 280: tstb (r4)+ 281: cmpb (r4),$'. 282: beq 2f 283: cmpb (r4),$'0 284: blo 3f 285: cmpb (r4),$'9 286: blos 2f 287: cmpb (r4),$'A 288: blo 3f 289: cmpb (r4),$'Z 290: blos 2f 291: cmpb (r4),$'_ 292: beq 2f 293: cmpb (r4),$'a 294: blo 3f 295: cmpb (r4),$'z 296: bhi 3f 297: 2: 298: dec (sp) 299: blt 1b 300: movb (r4),(r1)+ 301: br 1b 302: 3: 303: tst (sp)+ 304: jsr pc,lookupn 305: tst error 306: bne 1f 307: cmpb (r4),$'; 308: beq 2f 309: 1: 310: jmp operand 311: 2: 312: tstb (r4)+ 313: mov r1,namstrt 314: br letin1 315: 316: opex: 317: mov r0,lastop 318: jmp nextxp 319: 320: 321: command: 322: jsr r5,switch; comsw 323: inc error 324: rts pc 325: 326: comsw: 327: '/; slash 328: '\\; bslash 329: '?; quest 330: '\0; newln 331: '^; circumf 332: '=; equal 333: ':; colon 334: '!; excla 335: ''; squote 336: '"; dquote 337: '$; dolr 338: '&; amper 339: '%; ex 340: '`; grave 341: -1; 0 342: 343: dolr: 344: mov sigp,r1 345: bic $!17,r1 346: asl r1 347: mov traptab(r1),r1 348: jsr pc,string 349: jsr pc,pnl 350: mov $doltab,r5 351: 1: 352: mov (r5)+,r1 353: beq 1f 354: jsr pc,*(r5)+ 355: br 1b 356: .if fpp 357: 1: 358: mov (r5)+,r1 359: beq 1f 360: ldfps fpsr 361: jsr pc,*(r5)+ 362: br 1b 363: 1: 364: mov (r5)+,r1 365: jsr pc,*(r5)+ 366: .endif 367: 1: 368: rts pc 369: 370: traptab: 371: 1f; .data; 1:<?0\0>; .text 372: 1f; .data; 1:<Hangup\0>; .text 373: 1f; .data; 1:<Interrupt\0>; .text 374: 1f; .data; 1:<Quit\0>; .text 375: 1f; .data; 1:<Illegal instruction\0>; .text 376: 1f; .data; 1:<Trace/BPT\0>; .text 377: 1f; .data; 1:<IOT\0>; .text 378: 1f; .data; 1:<EMT\0>; .text 379: 1f; .data; 1:<FP exception\0>; .text 380: 1f; .data; 1:<Killed\0>; .text 381: 1f; .data; 1:<Bus error\0>; .text 382: 1f; .data; 1:<Segmentation violation\0>; .text 383: 1f; .data; 1:<Bad system call\0>; .text 384: 1f; .data; 1:<?15\0>; .text 385: 1f; .data; 1:<?16\0>; .text 386: 1f; .data; 1:<?17\0>; .text 387: 388: locps: regbuf+1776 389: locpc: regbuf+1774 390: locr0: regbuf+1772 391: locr1: regbuf+1766 392: locr2: regbuf+1750 393: locr3: regbuf+1752 394: locr4: regbuf+1754 395: locsp: regbuf+1764 396: locr5: regbuf+1756 397: locfpsr: regbuf+4 398: locfr0: regbuf+6 399: locfr4: regbuf+16 400: locfr5: regbuf+26 401: locfr1: regbuf+36 402: locfr2: regbuf+46 403: locfr3: regbuf+56 404: 405: doltab: 406: 1f; prgreg; locsp; .data; 1:<sp \0>; .text 407: 1f; proct; locps; .data; 1:<ps \0>; .text 408: 1f; prgreg; locpc; .data; 1:<pc \0>; .text 409: 1f; prgreg; locr0; .data; 1:<r0 \0>; .text 410: 1f; prgreg; locr1; .data; 1:<r1 \0>; .text 411: 1f; prgreg; locr2; .data; 1:<r2 \0>; .text 412: 1f; prgreg; locr3; .data; 1:<r3 \0>; .text 413: 1f; prgreg; locr4; .data; 1:<r4 \0>; .text 414: 1f; prgreg; locr5; .data; 1:<r5 \0>; .text 415: 0 416: .if fpp 417: 1f; prfreg; locfr0; .data; 1:<fr0 \0>; .text 418: 1f; prfreg; locfr1; .data; 1:<fr1 \0>; .text 419: 1f; prfreg; locfr2; .data; 1:<fr2 \0>; .text 420: 1f; prfreg; locfr3; .data; 1:<fr3 \0>; .text 421: 1f; prfreg; locfr4; .data; 1:<fr4 \0>; .text 422: 1f; prfreg; locfr5; .data; 1:<fr5 \0>; .text 423: 0 424: 1f; proct; locfpsr; .data; 1:<fpsr \0>; .text 425: .endif 426: .data 427: .even 428: .text 429: 430: .if fpp 431: prfreg: 432: mov *(r5)+,r4 433: movf (r4),fr0 434: cfcc 435: beq 1f 436: jsr pc,string 437: jsr pc,printf 438: jsr pc,pnl 439: 1: 440: rts pc 441: .endif 442: 443: prgreg: 444: jsr pc,string 445: mov *(r5)+,r4 446: mov (r4),r0 447: jsr pc,printo 448: mov (r4),r0 449: jsr pc,lookupv 450: tst r2 451: beq 1f 452: jsr r5,mesg; < \0>; .even 453: mov (r4),r0 454: jsr pc,pname 455: 1: 456: jsr pc,pnl 457: rts pc 458: 459: proct: 460: jsr pc,string 461: mov *(r5)+,r4 462: mov (r4),r0 463: jsr pc,printo 464: jsr pc,pnl 465: rts pc 466: 467: string: 468: movb (r1)+,r0 469: beq 1f 470: jsr pc,putc 471: br string 472: 1: 473: rts pc 474: 475: putc: 476: mov r0,och 477: mov $1,r0 478: sys write; och; 1 479: rts pc 480: 481: equal: 482: jsr r5,coleq; printo 483: rts pc 484: amper: 485: clr bytemod 486: mov $2,incdot 487: jsr r5,cycle; asymp 488: rts pc 489: 490: asymp: 491: jsr pc,pname 492: jsr pc,pnl 493: rts pc 494: 495: bslash: 496: inc bytemod 497: mov $1,incdot 498: br 1f 499: 500: slash: 501: clr bytemod 502: mov $2,incdot 503: 1: 504: jsr r5,cycle; octp 505: rts pc 506: 507: grave: 508: clr bytemod 509: mov $2,incdot 510: jsr r5,cycle; decp 511: rts pc 512: 513: quest: 514: clr bytemod 515: jsr r5,cycle; psym 516: rts pc 517: 518: decp: 519: jsr pc,printd 520: jsr r5,mesg; <.\n\0>; .even 521: rts pc 522: 523: octp: 524: jsr pc,printo 525: jsr pc,pnl 526: rts pc 527: 528: newln: 529: tst adrflg 530: bne 1f 531: add incdot,dot 532: 1: 533: mov nlcom,r0 534: jmp command 535: 536: excla: 537: tst adrflg 538: bne 1f 539: 2: 540: inc error 541: rts pc 542: 1: 543: bit $1,dot 544: beq 1f 545: tst bytemod 546: beq 2b 547: 1: 548: jsr r5,put; dot; addres 549: rts pc 550: 551: squote: 552: inc bytemod 553: mov $1,incdot 554: br 2f 555: dquote: 556: clr bytemod 557: mov $2,incdot 558: 2: 559: jsr r5,cycle; ascp 560: rts pc 561: 562: ascp: 563: mov r0,-(sp) 564: jsr pc,ascp1 565: mov (sp)+,r0 566: tst bytemod 567: bne 1f 568: swab r0 569: jsr pc,ascp1 570: 1: 571: cmp count,$1 572: bgt 1f 573: jsr pc,pnl 574: 1: 575: rts pc 576: 577: ascp1: 578: bic $!377,r0 579: cmp r0,$'\n 580: beq 2f 581: cmp r0,$011 582: beq 2f 583: cmp r0,$40 584: blo 1f 585: cmp r0,$177 586: bhis 1f 587: 2: 588: jsr pc,putc 589: rts pc 590: 1: 591: mov r0,r1 592: jsr r5,mesg; <\\\0> 593: clr r0 594: alsc $10.,r0 595: add $'0,r0 596: jsr pc,putc 597: clr r0 598: alsc $3,r0 599: add $'0,r0 600: jsr pc,putc 601: clr r0 602: alsc $3,r0 603: add $'0,r0 604: jsr pc,putc 605: rts pc 606: 607: colon: 608: jsr r5,coleq; pname 609: rts pc 610: 611: coleq: 612: jsr pc,setadr 613: mov addres,r0 614: jsr pc,*(r5)+ 615: jsr pc,pnl 616: rts r5 617: 618: cycle: 619: mov r0,nlcom 620: jsr pc,setadr 621: mov addres,dot 622: tst bytemod 623: bne 1f 624: bic $1,dot 625: 1: 626: jsr r5,get; dot 627: tst error 628: bne 1f 629: tst bytemod 630: beq 2f 631: bic $!377,r0 632: 2: 633: jsr pc,*(r5) 634: tst error 635: bne 1f 636: dec count 637: ble 1f 638: add incdot,dot 639: br 1b 640: 1: 641: tst (r5)+ 642: rts r5 643: 644: setadr: 645: tst adrflg 646: bne 1f 647: mov dot,addres 648: 1: 649: rts pc 650: 651: .if fpp 652: printf: 653: ldfps $200 / round+double 654: mov r4,-(sp) 655: mov r3,-(sp) 656: movif $10.,r3 657: movif $1,r2 658: clr r4 659: tstf r0 660: cfcc 661: beq 2f 662: bge 1f 663: negf r0 664: mov $'-,r0 665: jsr pc,putc 666: 1: 667: cmpf r3,r0 668: cfcc 669: bgt 1f 670: inc r4 671: divf r3,r0 672: br 1b 673: 1: 674: cmpf r2,r0 675: cfcc 676: ble 2f 677: dec r4 678: mulf r3,r0 679: br 1b 680: 2: 681: modf r2,r0 682: movfi r1,r0 683: add $'0,r0 684: jsr pc,putc 685: mov $'.,r0 686: jsr pc,putc 687: mov $8.,r3 688: 1: 689: modf r3,r0 690: movfi r1,r0 691: add $'0,r0 692: jsr pc,putc 693: dec r3 694: bgt 1b 695: mov $'E,r0 696: jsr pc,putc 697: mov r4,r0 698: mov (sp)+,r3 699: mov (sp)+,r4 700: br printd 701: .endif 702: 703: printd: 704: mov r1,-(sp) 705: mov r0,r1 706: bpl 1f 707: neg r1 708: mov $'-,r0 709: jsr pc,putc 710: 1: 711: jsr pc,1f 712: mov (sp)+,r1 713: rts pc 714: 1: 715: clr r0 716: dvd $10.,r0 717: mov r1,-(sp) 718: mov r0,r1 719: beq 1f 720: jsr pc,1b 721: 1: 722: mov (sp)+,r0 723: add $'0,r0 724: jsr pc,putc 725: rts pc
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