From d106235f5eebe280f4f820fc29bb5d8708e2f54d Mon Sep 17 00:00:00 2001 From: Matt Turner Date: Mon, 23 May 2016 18:10:11 -0700 Subject: Initial import --- ev5-clear_page.S | 39 +++++++++++++++++++++++++++++++++++++++ 1 file changed, 39 insertions(+) create mode 100644 ev5-clear_page.S (limited to 'ev5-clear_page.S') diff --git a/ev5-clear_page.S b/ev5-clear_page.S new file mode 100644 index 0000000..a221ae2 --- /dev/null +++ b/ev5-clear_page.S @@ -0,0 +1,39 @@ +/* + * arch/alpha/lib/clear_page.S + * + * Zero an entire page. + */ + + .text + .align 4 + .global clear_page + .ent clear_page +clear_page: + .prologue 0 + + lda $0,128 + nop + unop + nop + +1: stq $31,0($16) + stq $31,8($16) + stq $31,16($16) + stq $31,24($16) + + stq $31,32($16) + stq $31,40($16) + stq $31,48($16) + subq $0,1,$0 + + stq $31,56($16) + addq $16,64,$16 + unop + bne $0,1b + + ret + nop + unop + nop + + .end clear_page -- cgit v1.2.3