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| author | Andrew Waterman <waterman@eecs.berkeley.edu> | 2013-11-25 02:02:42 -0800 |
|---|---|---|
| committer | Andrew Waterman <waterman@eecs.berkeley.edu> | 2013-11-25 02:03:48 -0800 |
| commit | f62e692e72d1626977be0e92f766bdeed305d903 (patch) | |
| tree | 0823636782afa9a01505cb12a1f1c5c2909fcbf6 /pk/pk.S | |
| parent | a8889d65d249a71f009433766a1e9b1405945708 (diff) | |
| download | pk-f62e692e72d1626977be0e92f766bdeed305d903.zip pk-f62e692e72d1626977be0e92f766bdeed305d903.tar.gz pk-f62e692e72d1626977be0e92f766bdeed305d903.tar.bz2 | |
Update to new privileged ISA
Diffstat (limited to 'pk/pk.S')
| -rw-r--r-- | pk/pk.S | 20 |
1 files changed, 8 insertions, 12 deletions
@@ -1,24 +1,20 @@ // See LICENSE for license details. -#include "pcr.h" -#include "pk.h" +#include "encoding.h" .section .text,"ax",@progbits .globl _start _start: - lui sp, %hi(stack_top) - add sp, sp, %lo(stack_top) - - lui a0, %hi(trap_entry) - add a0, a0, %lo(trap_entry) - mtpcr a0, evec + la sp, stack_top + la a0, trap_entry + csrw evec, a0 li a0, SR_S | SR_PS | SR_EI | SR_S64 or a1, a0, SR_EF | SR_EA - mtpcr a1, status - mfpcr a1, status - mtpcr a0, status + csrw status, a1 + csrr a1, status + csrw status, a0 and a2, a1, SR_EF lui a0, %hi(have_fp) @@ -29,4 +25,4 @@ _start: sw a2, %lo(have_accelerator)(a0) lui a0, %hi(boot) - jalr a0, %lo(boot) + jr a0, %lo(boot) |