URL https://opencores.org/ocsvn/or1k/or1k/trunk

Subversion Repositories or1k

[/] [or1k/] [tags/] [nog_patch_47/] [or1ksim/] [cpu/] [or1k/] [sprs.h] - Diff between revs 479 and 517

Rev 479	Rev 517
Line 38...	Line 38...

`inline void setsprbit(const int regno, const int bitnum, const unsigned long bitvalue);`	`inline void setsprbit(const int regno, const int bitnum, const unsigned long bitvalue);`
`inline int getsprbit(const int regno, const int bitnum);`	`inline int getsprbit(const int regno, const int bitnum);`
`void sprs_status();`	`void sprs_status();`

`No newline at end of file`	`No newline at end of file`
	`#include "sim-config.h"`

	`/* Ugly, but fast */`
	`/* Get a specific SPR. */`
	`static inline sprword`
	`mfspr_(const int regno)`
	`{`
	`extern unsigned long reg[32];`
	`extern unsigned long pc;`
	`extern unsigned long pcprev;`
	`extern sprword sprs[MAX_SPRS];`

	`switch (regno) {`
	`case SPR_SR:`
	`/* Exceptions are always enabled */`
	`return sprs[regno] \| SPR_SR_EXR;`
	`case SPR_NPC:`
	`return pc;`
	`case SPR_PPC:`
	`return pcprev;`
	`default:`
	`/* Links to GPRS */`
	`if(regno >= 0x0400 && regno < 0x0420)`
	`return reg[regno - 0x0400];`
	`else if (regno < MAX_SPRS)`
	`return sprs[regno];`
	`}`
	`if (config.sim.verbose)`
	`printf ("WARNING: read out of SPR range %08X\n", regno);`
	`return 0;`
	`}`

`No newline at end of file`	`No newline at end of file`