summaryrefslogtreecommitdiff
path: root/arch/blackfin/lib/memset.S
diff options
context:
space:
mode:
Diffstat (limited to 'arch/blackfin/lib/memset.S')
-rw-r--r--arch/blackfin/lib/memset.S87
1 files changed, 0 insertions, 87 deletions
diff --git a/arch/blackfin/lib/memset.S b/arch/blackfin/lib/memset.S
deleted file mode 100644
index cdcf9148ea20..000000000000
--- a/arch/blackfin/lib/memset.S
+++ /dev/null
@@ -1,87 +0,0 @@
-/*
- * Copyright 2004-2009 Analog Devices Inc.
- *
- * Licensed under the Clear BSD license or the GPL-2 (or later)
- */
-
-#include <linux/linkage.h>
-
-.align 2
-
-#ifdef CONFIG_MEMSET_L1
-.section .l1.text
-#else
-.text
-#endif
-
-/*
- * C Library function MEMSET
- * R0 = address (leave unchanged to form result)
- * R1 = filler byte
- * R2 = count
- * Favours word aligned data.
- * The strncpy assumes that I0 and I1 are not used in this function
- */
-
-ENTRY(_memset)
- P0 = R0 ; /* P0 = address */
- P2 = R2 ; /* P2 = count */
- R3 = R0 + R2; /* end */
- CC = R2 <= 7(IU);
- IF CC JUMP .Ltoo_small;
- R1 = R1.B (Z); /* R1 = fill char */
- R2 = 3;
- R2 = R0 & R2; /* addr bottom two bits */
- CC = R2 == 0; /* AZ set if zero. */
- IF !CC JUMP .Lforce_align ; /* Jump if addr not aligned. */
-
-.Laligned:
- P1 = P2 >> 2; /* count = n/4 */
- R2 = R1 << 8; /* create quad filler */
- R2.L = R2.L + R1.L(NS);
- R2.H = R2.L + R1.H(NS);
- P2 = R3;
-
- LSETUP (.Lquad_loop , .Lquad_loop) LC0=P1;
-.Lquad_loop:
- [P0++] = R2;
-
- CC = P0 == P2;
- IF !CC JUMP .Lbytes_left;
- RTS;
-
-.Lbytes_left:
- R2 = R3; /* end point */
- R3 = P0; /* current position */
- R2 = R2 - R3; /* bytes left */
- P2 = R2;
-
-.Ltoo_small:
- CC = P2 == 0; /* Check zero count */
- IF CC JUMP .Lfinished; /* Unusual */
-
-.Lbytes:
- LSETUP (.Lbyte_loop , .Lbyte_loop) LC0=P2;
-.Lbyte_loop:
- B[P0++] = R1;
-
-.Lfinished:
- RTS;
-
-.Lforce_align:
- CC = BITTST (R0, 0); /* odd byte */
- R0 = 4;
- R0 = R0 - R2;
- P1 = R0;
- R0 = P0; /* Recover return address */
- IF !CC JUMP .Lskip1;
- B[P0++] = R1;
-.Lskip1:
- CC = R2 <= 2; /* 2 bytes */
- P2 -= P1; /* reduce count */
- IF !CC JUMP .Laligned;
- B[P0++] = R1;
- B[P0++] = R1;
- JUMP .Laligned;
-
-ENDPROC(_memset)