Maybe you should add a comment that normally 3 nops are necessary, but
in this case it is not.
On 19/11/14 16:35, Daniel Hellstrom wrote:
I see no need for waiting the 3 instruction delay for wim to be
written in this case, since the STD after does not depend on WIM
---
c/src/lib/libcpu/sparc/reg_win/window.S | 1 -
1 files changed, 0 insertions(+), 1 deletions(-)
diff --git a/c/src/lib/libcpu/sparc/reg_win/window.S
b/c/src/lib/libcpu/sparc/reg_win/window.S
index dffac6a..453cc74 100644
--- a/c/src/lib/libcpu/sparc/reg_win/window.S
+++ b/c/src/lib/libcpu/sparc/reg_win/window.S
@@ -61,7 +61,6 @@ SYM(window_overflow_trap_handler):
save ! Get into window to be saved.
mov %g1, %wim ! load new WIM
- nop; nop; nop ! 3 slot delay
std %l0, [%sp + 0x00] ! save local register set
std %l2, [%sp + 0x08]
std %l4, [%sp + 0x10]
--
Sebastian Huber, embedded brains GmbH
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