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

Subversion Repositories or1k

[/] [or1k/] [tags/] [nog_patch_47/] [or1ksim/] [cpu/] [or1k/] [except.c] - Diff between revs 535 and 556

Rev 535	Rev 556
Line 122...	Line 122...
`mtspr(SPR_SR, mfspr(SPR_SR) \| SPR_SR_SUPV); /* SUPV mode */`	`mtspr(SPR_SR, mfspr(SPR_SR) \| SPR_SR_SUPV); /* SUPV mode */`
`mtspr(SPR_SR, mfspr(SPR_SR) & ~SPR_SR_EIR); /* Disable interrupts. */`	`mtspr(SPR_SR, mfspr(SPR_SR) & ~SPR_SR_EIR); /* Disable interrupts. */`

`clear_pending_exception ();`	`clear_pending_exception ();`

`pc = (unsigned long)except;`	`pc = (unsigned long)except + (testsprbits (SPR_SR, SPR_SR_EP) ? 0xf0000000 : 0x00000000);`

`/* This has been removed. All exceptions (not just SYSCALL) suffer`	`/* This has been removed. All exceptions (not just SYSCALL) suffer`
`from the same problem. The solution is to continue just like`	`from the same problem. The solution is to continue just like`
`the pipeline would, and issue the exception on the next`	`the pipeline would, and issue the exception on the next`
`clock cycle. We assume now that this function is being called`	`clock cycle. We assume now that this function is being called`
Line 145...	Line 145...

`/* Added by CZ 27/05/01 */`	`/* Added by CZ 27/05/01 */`
`pc_phy = pc; /* An exception always turns off the MMU, so`	`pc_phy = pc; /* An exception always turns off the MMU, so`
`pc is always pc_phy */`	`pc is always pc_phy */`

`#endif`	`#endif /* !ONLY_VIRUAL_MACHINE */`
`}`	`}`

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