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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,10 @@ | ||
| <!DOCTYPE html> | ||
| <html lang="en-us"> | ||
| <head> | ||
| <title>https://lynxline.com/posts/lab-15-eve-hello-world-from-limbo/</title> | ||
| <link rel="canonical" href="https://lynxline.com/posts/lab-15-eve-hello-world-from-limbo/"> | ||
| <meta name="robots" content="noindex"> | ||
| <meta charset="utf-8"> | ||
| <meta http-equiv="refresh" content="0; url=https://lynxline.com/posts/lab-15-eve-hello-world-from-limbo/"> | ||
| </head> | ||
| </html> |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,24 @@ | ||
| #include "u.h" | ||
| #include "../port/lib.h" | ||
| #include "mem.h" | ||
| #include "dat.h" | ||
| #include "fns.h" | ||
|
|
||
| static void | ||
| linkproc(void) | ||
| { | ||
| spllo(); | ||
| if (waserror()) | ||
| print("error() underflow: %r\n"); | ||
| else (*up->kpfun)(up->arg); | ||
| pexit("end proc", 1); | ||
| } | ||
|
|
||
| void | ||
| kprocchild(Proc *p, void (*func)(void*), void *arg) | ||
| { | ||
| p->sched.pc = (ulong)linkproc; | ||
| p->sched.sp = (ulong)p->kstack+KSTACK-8; | ||
| p->kpfun = func; | ||
| p->arg = arg; | ||
| } |
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| Original file line number | Diff line number | Diff line change |
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| @@ -0,0 +1,85 @@ | ||
|
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| #define HZ (100) /*! clock frequency */ | ||
| #define MS2HZ (1000/HZ) /*! millisec per clock tick */ | ||
| #define TK2SEC(t) ((t)/HZ) /*! ticks to seconds */ | ||
| #define MS2TK(t) ((t)/MS2HZ) /*! milliseconds to ticks */ | ||
|
|
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| #define MACHP(n) (n == 0 ? (Mach*)(MACHADDR) : (Mach*)0) | ||
|
|
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| typedef struct Lock Lock; | ||
| typedef struct Ureg Ureg; | ||
| typedef struct Label Label; | ||
| typedef struct FPenv FPenv; | ||
| typedef struct Mach Mach; | ||
| typedef struct FPU FPU; | ||
| typedef ulong Instr; | ||
| typedef struct Conf Conf; | ||
|
|
||
| struct Lock | ||
| { | ||
| ulong key; | ||
| ulong sr; | ||
| ulong pc; | ||
| int pri; | ||
| }; | ||
|
|
||
| struct Label | ||
| { | ||
| ulong sp; | ||
| ulong pc; | ||
| }; | ||
|
|
||
| enum | ||
| { | ||
| FPINIT, | ||
| FPACTIVE, | ||
| FPINACTIVE | ||
| }; | ||
|
|
||
| struct FPenv | ||
| { | ||
| ulong status; | ||
| ulong control; | ||
| ushort fpistate; /* emulated fp */ | ||
| ulong regs[8][3]; /* emulated fp */ | ||
| }; | ||
|
|
||
| struct FPU | ||
| { | ||
| FPenv env; | ||
| }; | ||
|
|
||
| struct Conf | ||
| { | ||
| ulong nmach; /* processors */ | ||
| ulong nproc; /* processes */ | ||
| ulong npage; /* total physical pages of memory */ | ||
| ulong npage0; /* total physical pages of memory */ | ||
| ulong npage1; /* total physical pages of memory */ | ||
| ulong base0; /* base of bank 0 */ | ||
| ulong base1; /* base of bank 1 */ | ||
| ulong ialloc; /* max interrupt time allocation in bytes */ | ||
| ulong topofmem; /* top addr of memory */ | ||
| }; | ||
|
|
||
| #include "../port/portdat.h" | ||
|
|
||
| struct Mach | ||
| { | ||
| ulong splpc; /* pc of last caller to splhi */ | ||
| int machno; /* physical id of processor */ | ||
| ulong ticks; /* of the clock since boot time */ | ||
| Proc* proc; /* current process on this processor */ | ||
| Label sched; /* scheduler wakeup */ | ||
| ulong cpuhz; | ||
|
|
||
| /* stacks for exceptions */ | ||
| ulong fiqstack[4]; | ||
| ulong irqstack[4]; | ||
| ulong abtstack[4]; | ||
| ulong undstack[4]; | ||
| int stack[1]; | ||
| }; | ||
|
|
||
| extern Mach *m; | ||
| extern Proc *up; |
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