xv6-65oo2/picirq.c

#include "types.h"
#include "x86.h"
#include "traps.h"

// I/O Addresses of the two programmable interrupt controllers
#define IO_PIC1         0x20    // Master (IRQs 0-7)
#define IO_PIC2         0xA0    // Slave (IRQs 8-15)

// Don't use the 8259A interrupt controllers.  Xv6 assumes SMP hardware.
void
picinit(void)
{
  // mask all interrupts
  outb(IO_PIC1+1, 0xFF);
  outb(IO_PIC2+1, 0xFF);
}

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checkpoint 2006-06-16 20:29:25 +00:00			`#include "types.h"`
			`#include "x86.h"`
remove duplication don't use the same name for two different pieces of code 2006-09-03 15:39:29 +00:00			`#include "traps.h"`
checkpoint 2006-06-16 20:29:25 +00:00
comments; rename irq_ to pic_ 2007-08-28 19:04:36 +00:00			`// I/O Addresses of the two programmable interrupt controllers`
spacing fixes: no tabs, 2-space indents (for rtm) 2006-09-06 17:04:06 +00:00			`#define IO_PIC1 0x20 // Master (IRQs 0-7)`
			`#define IO_PIC2 0xA0 // Slave (IRQs 8-15)`
timer interrupts disk interrupts (assuming bochs has a bug) 2006-07-05 20:00:14 +00:00
Commit to running on an SMP (perhaps with only 1 core). Remove most code from picirq.c and remove timer.c completely. Update runoff.list. 2017-08-09 11:43:06 +00:00			`// Don't use the 8259A interrupt controllers. Xv6 assumes SMP hardware.`
checkpoint 2006-06-16 20:29:25 +00:00			`void`
be consistent: no underscores in function names 2009-03-08 22:07:13 +00:00			`picinit(void)`
checkpoint 2006-06-16 20:29:25 +00:00			`{`
timer interrupts disk interrupts (assuming bochs has a bug) 2006-07-05 20:00:14 +00:00			`// mask all interrupts`
			`outb(IO_PIC1+1, 0xFF);`
			`outb(IO_PIC2+1, 0xFF);`
checkpoint 2006-06-16 20:29:25 +00:00			`}`
Make runoff happy 2016-09-02 19:27:28 +00:00
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