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[/] [or1k/] [trunk/] [mp3/] [sw/] [support/] [support.c] - Diff between revs 505 and 564

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Rev 505	Rev 564
Line 14...	Line 14...

`/* return value by making a syscall */`	`/* return value by making a syscall */`
`void exit (int i)`	`void exit (int i)`
`{`	`{`
`asm("l.add r3,r0,%0": : "r" (i));`	`asm("l.add r3,r0,%0": : "r" (i));`
`asm("l.sys 203");`	`asm("l.nop 1");`
`}`	`}`

`/* activate printf support in simulator */`	`/* activate printf support in simulator */`
`void printf(const char *fmt, ...)`	`void printf(const char *fmt, ...)`
`{`	`{`
`va_list args;`	`va_list args;`
`va_start(args, fmt);`	`va_start(args, fmt);`
`asm("l.addi\tr3,%0,0": :"r" (fmt));`	`asm("l.addi\tr3,%0,0": :"r" (fmt));`
`asm("l.addi\tr4,%0,0": :"r" (args));`	`asm("l.addi\tr4,%0,0": :"r" (args));`
`/* asm("l.sys 202"); */`	`asm("l.nop 3");`
`}`	`}`

`/* print long */`	`/* print long */`
`void report(unsigned long value)`	`void report(unsigned long value)`
`{`	`{`
`unsigned long spr = 0x1234;`	`asm("l.nop 2");`
`asm("l.mtspr\t\t%0,%1,0x0" : : "r" (spr), "r" (value));`
`return;`	`return;`
`}`	`}`

`/* just to satisfy linker */`	`/* just to satisfy linker */`
`void __main()`	`void __main()`
Line 52...	Line 51...
`unsigned int read_timer(int x)`	`unsigned int read_timer(int x)`
`{`	`{`
`unsigned long count = 0;`	`unsigned long count = 0;`

`/* Read the Time Stamp Counter */`	`/* Read the Time Stamp Counter */`
`/* asm("simrdtsc %0" :"=r" (count)); */`	`/* asm("simrdtsc %0" :"=r" (count));`
`asm("l.sys 201");`	`asm("l.nop X"); */`
`return count;`	`return count;`
`}`	`}`

`/* For writing into SPR. */`	`/* For writing into SPR. */`
`void mtspr(unsigned long spr, unsigned long value)`	`void mtspr(unsigned long spr, unsigned long value)`
Line 74...	Line 73...
`}`	`}`

`#else`	`#else`
`void report(unsigned long value)`	`void report(unsigned long value)`
`{`	`{`
`unsigned long spr = 0x1234;`
`printf("l.mtspr %x,%x\n", spr, value);`
`return;`	`return;`
`}`	`}`

`/* start_TIMER */`	`/* start_TIMER */`
`void start_timer(int tmrnum)`	`void start_timer(int tmrnum)`

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[/] [or1k/] [trunk/] [mp3/] [sw/] [support/] [support.c] - Diff between revs 505 and 564