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Diffstat (limited to 'gdb/nlm/alpha-io.S')
-rw-r--r-- | gdb/nlm/alpha-io.S | 150 |
1 files changed, 0 insertions, 150 deletions
diff --git a/gdb/nlm/alpha-io.S b/gdb/nlm/alpha-io.S deleted file mode 100644 index f3c2bc7..0000000 --- a/gdb/nlm/alpha-io.S +++ /dev/null @@ -1,150 +0,0 @@ -/* - * Copyright (C) 1993, 1994 by - * Digital Equipment Corporation, Maynard, Massachusetts. - * All rights reserved. - * - * This software is furnished under a license and may be used and copied - * only in accordance of the terms of such license and with the - * inclusion of the above copyright notice. This software or any other - * copies thereof may not be provided or otherwise made available to any - * other person. No title to and ownership of the software is hereby - * transferred. - * - * The information in this software is subject to change without notice - * and should not be construed as a commitment by Digital Equipment - * Corporation. - * - * Digital assumes no responsibility for the use or reliability of its - * software on equipment which is not supplied by Digital. - * - */ - - -#include "alpha-regdef.h" - -#define LEAF_ENTRY(NAME) .text ; .align 4 ; .globl NAME ; .ent NAME, 0 ; NAME: ; .frame sp, 0, ra ; .prologue 0 ; - - -LEAF_ENTRY(flush_i_cache) - call_pal 0x86 /* IMB */ - ret zero, (ra) /* return */ - .end flush_i_cache - - - -/* ++ - * - * VOID - * outVti( - * ULONG Port - * ULONG Data - * ) - * - * Routine Description: - * - * This Function Uses The 64-Bit Super-Page To Write Data To A Port - * Of The On-Board VTI Combo Chip For JENSEN. - * - * Arguments: - * - * Port (A0) - Port Number On VTI Chip To Which To Write Data - * data (a1) - data to write to the port, only low byte is significant - * To The VTI - * - * Return Value: - * - * None. - * - */ - - LEAF_ENTRY(outVti) - - /* - * generate super-page address of vti, base address - * N.B. - Upper Bits Must Be Sign Extension Of Bit 42 - * va<42:41> = 10 (binary) for super-page address - */ - - lda t0, 0xc01c(zero) /* t0 = ffff ffff ffff c01c */ - sll t0, 28, t0 /* t0 = ffff fc01 c000 0000 */ - - - /* - * Shift In The Port Number To Generate The Port Address We - * wish to access - * N.B. - Access Width Is Always Zero = Byte Access For VTI - */ - - sll a0, 9, a0 /* a0 << 9 */ - bis t0, a0, t0 /* T0 = Address Of VTI Port */ - - - /* - * Do The Port Write, Guarantee That Subsequent Writes (And Reads) - * are ordered with respect to this write and return to caller - */ - - stl a1, 0(t0) /* write data to port */ - mb /* guarantee write ordering */ - - ret zero, (ra) /* return */ - - .end outVti - - - -/* - * - * ULONG - * inVti( - * ULONG Port - * ) - * - * Routine Description: - * - * This Function Uses The 64-Bit Super-Page To Read Data From A Port - * Of The On-Board VTI Combo Chip For JENSEN. - * - * Arguments: - * - * Port (A0) - Port Number On VTI Chip To Which To Write Data - * - * Return Value: - * - * Data (V0) - The Data Read From The VTI Chip, Only The Low Byte Will - * be valid - * - */ - - LEAF_ENTRY(inVti) - - /* - * generate super-page address of vti, base address - * N.B. - Upper Bits Must Be Sign Extension Of Bit 42 - * va<42:41> = 10 (binary) for super-page address - */ - - lda t0, 0xc01c(zero) /* t0 = ffff ffff ffff c01c */ - sll t0, 28, t0 /* t0 = ffff fc01 c000 0000 */ - - - /* - * Shift In The Port Number To Generate The Port Address We - * wish to access - * N.B. - Access Width For VTI Is Always 0 = Byte Access - */ - - sll a0, 9, a0 /* a0 << 9 */ - bis t0, a0, t0 /* T0 = Address Of VTI Port */ - - - /* - * Do The Super-Page I/O Access And Return Data To Caller - */ - - ldl v0, 0(t0) /* read data from port */ - and v0, 0xff, v0 - - ret zero, (ra) /* return */ - - .end inVti |