diff options
Diffstat (limited to 'ANDROID_3.4.5/arch/m68k/fpsp040/x_unsupp.S')
| -rw-r--r-- | ANDROID_3.4.5/arch/m68k/fpsp040/x_unsupp.S | 82 |
1 files changed, 0 insertions, 82 deletions
diff --git a/ANDROID_3.4.5/arch/m68k/fpsp040/x_unsupp.S b/ANDROID_3.4.5/arch/m68k/fpsp040/x_unsupp.S deleted file mode 100644 index d7cf4620..00000000 --- a/ANDROID_3.4.5/arch/m68k/fpsp040/x_unsupp.S +++ /dev/null @@ -1,82 +0,0 @@ -| -| x_unsupp.sa 3.3 7/1/91 -| -| fpsp_unsupp --- FPSP handler for unsupported data type exception -| -| Trap vector #55 (See table 8-1 Mc68030 User's manual). -| Invoked when the user program encounters a data format (packed) that -| hardware does not support or a data type (denormalized numbers or un- -| normalized numbers). -| Normalizes denorms and unnorms, unpacks packed numbers then stores -| them back into the machine to let the 040 finish the operation. -| -| Unsupp calls two routines: -| 1. get_op - gets the operand(s) -| 2. res_func - restore the function back into the 040 or -| if fmove.p fpm,<ea> then pack source (fpm) -| and store in users memory <ea>. -| -| Input: Long fsave stack frame -| -| - -| Copyright (C) Motorola, Inc. 1990 -| All Rights Reserved -| -| For details on the license for this file, please see the -| file, README, in this same directory. - -X_UNSUPP: |idnt 2,1 | Motorola 040 Floating Point Software Package - - |section 8 - -#include "fpsp.h" - - |xref get_op - |xref res_func - |xref gen_except - |xref fpsp_fmt_error - - .global fpsp_unsupp -fpsp_unsupp: -| - link %a6,#-LOCAL_SIZE - fsave -(%a7) - moveml %d0-%d1/%a0-%a1,USER_DA(%a6) - fmovemx %fp0-%fp3,USER_FP0(%a6) - fmoveml %fpcr/%fpsr/%fpiar,USER_FPCR(%a6) - - - moveb (%a7),VER_TMP(%a6) |save version number - moveb (%a7),%d0 |test for valid version num - andib #0xf0,%d0 |test for $4x - cmpib #VER_4,%d0 |must be $4x or exit - bnel fpsp_fmt_error - - fmovel #0,%FPSR |clear all user status bits - fmovel #0,%FPCR |clear all user control bits -| -| The following lines are used to ensure that the FPSR -| exception byte and condition codes are clear before proceeding, -| except in the case of fmove, which leaves the cc's intact. -| -unsupp_con: - movel USER_FPSR(%a6),%d1 - btst #5,CMDREG1B(%a6) |looking for fmove out - bne fmove_con - andl #0xFF00FF,%d1 |clear all but aexcs and qbyte - bras end_fix -fmove_con: - andl #0x0FFF40FF,%d1 |clear all but cc's, snan bit, aexcs, and qbyte -end_fix: - movel %d1,USER_FPSR(%a6) - - st UFLG_TMP(%a6) |set flag for unsupp data - - bsrl get_op |everything okay, go get operand(s) - bsrl res_func |fix up stack frame so can restore it - clrl -(%a7) - moveb VER_TMP(%a6),(%a7) |move idle fmt word to top of stack - bral gen_except -| - |end |