1: /* 2: * SCCS id @(#)l.s 1.5 (Berkeley) 3/14/83 3: * 4: * Low Core 5: * 6: */ 7: 8: #define LOCORE 9: #include "whoami.h" /* for localopts */ 10: #include <sys/trap.h> 11: #include <sys/iopage.m> 12: #include <sys/koverlay.h> /* for definition of OVLY_TABLE_BASE */ 13: 14: #include "dh.h" 15: #include "dn.h" 16: #include "dz.h" 17: #include "hk.h" 18: #include "hp.h" 19: #include "hs.h" 20: #include "ht.h" 21: #include "kl.h" 22: #include "lp.h" 23: #include "rk.h" 24: #include "rl.h" 25: #include "rm.h" 26: #include "rp.h" 27: #include "tm.h" 28: #include "ts.h" 29: #include "vp.h" 30: #include "xp.h" 31: 32: .globl call, trap, buserr, start, _panic 33: #ifdef NONFP 34: .globl instrap 35: #else 36: # define instrap trap 37: #endif 38: #ifdef MENLO_OVLY 39: .globl emt 40: #else 41: # define emt trap 42: #endif 43: #ifdef UCB_AUTOBOOT 44: .globl powrdown 45: #else 46: # define powrdown trap 47: #endif 48: 49: #ifndef KERN_NONSEP 50: .data 51: #endif 52: 53: ZERO: 54: 55: br4 = 200 56: br5 = 240 57: br6 = 300 58: br7 = 340 59: 60: . = ZERO+0 61: #ifdef KERN_NONSEP 62: / If vectors at 110 and 444 are unused, 63: / autoconfig will set these to something more reasonable. 64: / On jump, this will branch to 112, which branches to 50. 65: / On trap, will vector to 444, where a ZEROTRAP will be simulated. 66: 42 / illegal instruction if jump 67: 777 / trace trap at high priority if trap 68: #else 69: trap; br7+ZEROTRAP. / trap-to-zero trap 70: #endif 71: 72: / trap vectors 73: . = ZERO+4 74: buserr; br7+BUSFLT. / bus error 75: instrap; br7+INSTRAP. / illegal instruction 76: trap; br7+BPTTRAP. / bpt-trace trap 77: trap; br7+IOTTRAP. / iot trap 78: powrdown; br7+POWRFAIL. / power fail 79: emt; br7+EMTTRAP. / emulator trap 80: start;br7+SYSCALL. / system (overlaid by 'syscall') 81: 82: . = ZERO+40 83: #ifdef UCB_AUTOBOOT 84: .globl do_panic 85: jmp do_panic 86: #else 87: br . 88: #endif 89: 90: .globl dump 91: . = ZERO+44 92: jmp dump 93: #ifdef KERN_NONSEP 94: / Handler for jump-to-zero panic. 95: . = ZERO+50 96: mov $zjmp, -(sp) 97: jsr pc, _panic 98: #endif 99: 100: . = ZERO+60 101: klin; br4 102: klou; br4 103: 104: . = ZERO+100 105: kwlp; br6 106: kwlp; br6 107: 108: . = ZERO+114 109: trap; br7+PARITYFLT. / 11/70 parity 110: trap; br7+SEGFLT. / segmentation violation 111: 112: #if NRL > 0 113: . = ZERO+160 114: rlio; br5 115: #endif 116: 117: #if NHK > 0 118: . = ZERO+210 119: hkio; br5 120: #endif 121: 122: #if NRK > 0 123: . = ZERO+220 124: rkio; br5 125: #endif 126: 127: . = ZERO+240 128: trap; br7+PIRQ. / programmed interrupt 129: trap; br7+ARITHTRAP. / floating point 130: trap; br7+SEGFLT. / segmentation violation 131: 132: . = ZERO+254 133: #if NXP > 0 134: xpio; br5 135: #else 136: #if NHP > 0 137: hpio; br5 138: #else 139: #if NRM > 0 140: rmio; br5 141: #endif 142: #endif 143: #endif 144: 145: / floating vectors 146: . = ZERO + 1000 147: endvec = . / endvec should be past vector space 148: / (if NONSEP, should be at least 450) 149: 150: #ifdef MENLO_KOV 151: / overlay descriptor tables 152: . = ZERO+OVLY_TABLE_BASE 153: .globl ova, ovd, ovend 154: ova: .=.+20 / overlay addresses 155: ovd: .=.+20 / overlay sizes 156: ovend: .=.+2 / end of overlays 157: #endif 158: 159: ////////////////////////////////////////////////////// 160: / interface code to C 161: ////////////////////////////////////////////////////// 162: 163: #ifndef KERN_NONSEP 164: .text 165: / This is text location 0 for separate I/D kernels. 166: mov $zjmp, -(sp) 167: jsr pc, _panic 168: /*NOTREACHED*/ 169: 170: / Unmap is called from _doboot to turn off memory management. 171: / The "return" is arranged by putting a jmp at unmap+2 (data space). 172: 173: reset= 5 174: .globl unmap 175: unmap: 176: reset 177: / The next instruction executed is from unmap+2 in physical memory, 178: / which is unmap+2 in data space. 179: 180: #endif KERN_NONSEP 181: 182: .data 183: zjmp: <jump to 0\0> 184: .text 185: 186: / CGOOD and CBAD are used by autoconfig. 187: / All unused vectors are set to CBAD 188: / before probing the devices. 189: 190: .globl CGOOD, CBAD, _conf_int 191: rtt = 6 192: CGOOD: mov $1, _conf_int ; rtt 193: CBAD: mov $-1,_conf_int ; rtt 194: 195: .globl _klrint 196: klin: jsr r0,call; jmp _klrint 197: .globl _klxint 198: klou: jsr r0,call; jmp _klxint 199: 200: .globl _clock 201: kwlp: jsr r0,call; jmp _clock 202: 203: #if NDH > 0 204: .globl _dhrint 205: dhin: jsr r0,call; jmp _dhrint 206: .globl _dhxint 207: dhou: jsr r0,call; jmp _dhxint 208: #endif 209: 210: #if NDM > 0 211: .globl _dmintr 212: dmin: jsr r0,call; jmp _dmintr 213: #endif 214: 215: #if NDZ > 0 216: .globl _dzrint 217: dzin: jsr r0,call; jmp _dzrint 218: #ifndef DZ_PDMA 219: .globl _dzxint 220: dzou: jsr r0,call; jmp _dzxint 221: #endif DZ_PDMA 222: #endif NDZ 223: 224: #if NHK > 0 225: .globl _hkintr 226: hkio: jsr r0,call; jmp _hkintr 227: #endif 228: 229: #if NHP > 0 230: .globl _hpintr 231: hpio: jsr r0,call; jmp _hpintr 232: #endif 233: 234: #if NHS > 0 235: .globl _hsintr 236: hsio: jsr r0,call; jmp _hsintr 237: #endif 238: 239: #if NHT > 0 240: .globl _htintr 241: htio: jsr r0,call; jmp _htintr 242: #endif 243: 244: #if NLP > 0 245: .globl _lpintr 246: lpio: jsr r0,call; jmp _lpintr 247: #endif 248: 249: #if NRK > 0 250: .globl _rkintr 251: rkio: jsr r0,call; jmp _rkintr 252: #endif 253: 254: #if NRL > 0 255: .globl _rlintr 256: rlio: jsr r0,call; jmp _rlintr 257: #endif 258: 259: #if NRM > 0 260: .globl _rmintr 261: rmio: jsr r0,call; jmp _rmintr 262: #endif 263: 264: #if NRP > 0 265: .globl _rpintr 266: rpio: jsr r0,call; jmp _rpintr 267: #endif 268: 269: #if NTM > 0 270: .globl _tmintr 271: tmio: jsr r0,call; jmp _tmintr 272: #endif 273: 274: #if NTS > 0 275: .globl _tsintr 276: tsio: jsr r0,call; jmp _tsintr 277: #endif 278: 279: #if NVP > 0 280: .globl _vpintr 281: vpio: jsr r0,call; jmp _vpintr 282: #endif 283: 284: #if NXP > 0 285: .globl _xpintr 286: xpio: jsr r0,call; jmp _xpintr 287: #endif
Defined functions
Defined variables
Defined macros
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