t68020 - plan9port - [fork] Plan 9 from user space
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t68020 (2474B)
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1 // 68020 support
2
3 defn acidinit() // Called after all the init modules are loaded
4 {
5 bplist = {};
6 bpfmt = 'x';
7
8 srcpath = {
9 "./",
10 "/sys/src/libc/port/",
11 "/sys/src/libc/9sys/",
12 "/sys/src/libc/68020/"
13 };
14
15 srcfiles = {}; // list of loaded files
16 srctext = {}; // the text of the files
17 }
18
19 defn linkreg(addr)
20 {
21 return 0;
22 }
23
24 defn stk() // trace
25 {
26 _stk(*PC, *A7, 0, 0);
27 }
28
29 defn lstk() // trace with locals
30 {
31 _stk(*PC, *A7, 0, 1);
32 }
33
34 defn gpr() // print general purpose registers
35 {
36 print("R0\t", *R0, "R1\t", *R1, "R2\t", *R2, "R3\t", *R3, "\n");
37 print("R4\t", *R4, "R5\t", *R5, "R6\t", *R6, "R7\t", *R7, "\n");
38 print("A0\t", *A0, "A1\t", *A1, "A2\t", *A2, "A3\t", *A3, "\n");
39 print("A4\t", *A4, "A5\t", *A5, "A6\t", *A6, "A7\t", *A7, "\n");
40 }
41
42 defn spr() // print special processor registers
43 {
44 local pc;
45 local cause;
46
47 pc = *PC;
48 print("PC\t", pc, " ", fmt(pc, 'a'), " ");
49 pfl(pc);
50 print("SP\t", *A7, " MAGIC\t", *MAGIC, "\n");
51
52 cause = *VO;
53 print("SR\t", *SR, "VO ", cause, " ", reason(cause), "\n");
54 }
55
56 defn regs() // print all registers
57 {
58 spr();
59 gpr();
60 }
61
62 defn pstop(pid)
63 {
64 local l;
65 local pc;
66
67 pc = *PC;
68
69 print(pid,": ", reason(*VO), "\t");
70 print(fmt(pc, 'a'), "\t", fmt(pc, 'i'), "\n");
71
72 if notes then {
73 if notes[0] != "sys: breakpoint" then {
74 print("Notes pending:\n");
75 l = notes;
76 while l do {
77 print("\t", head l, "\n");
78 l = tail l;
79 }
80 }
81 }
82 }
83
84 aggr Ureg
85 {
86 'U' 0 r0;
87 'U' 4 r1;
88 'U' 8 r2;
89 'U' 12 r3;
90 'U' 16 r4;
91 'U' 20 r5;
92 'U' 24 r6;
93 'U' 28 r7;
94 'U' 32 a0;
95 'U' 36 a1;
96 'U' 40 a2;
97 'U' 44 a3;
98 'U' 48 a4;
99 'U' 52 a5;
100 'U' 56 a6;
101 'U' 60 sp;
102 'U' 64 usp;
103 'U' 68 magic;
104 'u' 72 sr;
105 'U' 74 pc;
106 'u' 78 vo;
107 'a' 80 microstate;
108 };
109
110 defn
111 Ureg(addr) {
112 complex Ureg addr;
113 print(" r0 ", addr.r0, "\n");
114 print(" r1 ", addr.r1, "\n");
115 print(" r2 ", addr.r2, "\n");
116 print(" r3 ", addr.r3, "\n");
117 print(" r4 ", addr.r4, "\n");
118 print(" r5 ", addr.r5, "\n");
119 print(" r6 ", addr.r6, "\n");
120 print(" r7 ", addr.r7, "\n");
121 print(" a0 ", addr.a0, "\n");
122 print(" a1 ", addr.a1, "\n");
123 print(" a2 ", addr.a2, "\n");
124 print(" a3 ", addr.a3, "\n");
125 print(" a4 ", addr.a4, "\n");
126 print(" a5 ", addr.a5, "\n");
127 print(" a6 ", addr.a6, "\n");
128 print(" sp ", addr.sp, "\n");
129 print(" usp ", addr.usp, "\n");
130 print(" magic ", addr.magic, "\n");
131 print(" sr ", addr.sr, "\n");
132 print(" pc ", addr.pc, "\n");
133 print(" vo ", addr.vo, "\n");
134 print(" microstate ", addr.microstate, "\n");
135 };
136
137 print(acidfile);