diff options
Diffstat (limited to 'ANDROID_3.4.5/arch/m68k/fpsp040/x_unimp.S')
| -rw-r--r-- | ANDROID_3.4.5/arch/m68k/fpsp040/x_unimp.S | 76 |
1 files changed, 0 insertions, 76 deletions
diff --git a/ANDROID_3.4.5/arch/m68k/fpsp040/x_unimp.S b/ANDROID_3.4.5/arch/m68k/fpsp040/x_unimp.S deleted file mode 100644 index 6f382b21..00000000 --- a/ANDROID_3.4.5/arch/m68k/fpsp040/x_unimp.S +++ /dev/null @@ -1,76 +0,0 @@ -| -| x_unimp.sa 3.3 7/1/91 -| -| fpsp_unimp --- FPSP handler for unimplemented instruction -| exception. -| -| Invoked when the user program encounters a floating-point -| op-code that hardware does not support. Trap vector# 11 -| (See table 8-1 MC68030 User's Manual). -| -| -| Note: An fsave for an unimplemented inst. will create a short -| fsave stack. -| -| Input: 1. Six word stack frame for unimplemented inst, four word -| for illegal -| (See table 8-7 MC68030 User's Manual). -| 2. Unimp (short) fsave state frame created here by fsave -| instruction. -| -| -| 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_UNIMP: |idnt 2,1 | Motorola 040 Floating Point Software Package - - |section 8 - -#include "fpsp.h" - - |xref get_op - |xref do_func - |xref sto_res - |xref gen_except - |xref fpsp_fmt_error - - .global fpsp_unimp - .global uni_2 -fpsp_unimp: - link %a6,#-LOCAL_SIZE - fsave -(%a7) -uni_2: - moveml %d0-%d1/%a0-%a1,USER_DA(%a6) - fmovemx %fp0-%fp3,USER_FP0(%a6) - fmoveml %fpcr/%fpsr/%fpiar,USER_FPCR(%a6) - 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 -| -| Temporary D25B Fix -| The following lines are used to ensure that the FPSR -| exception byte and condition codes are clear before proceeding -| - movel USER_FPSR(%a6),%d0 - andl #0xFF00FF,%d0 |clear all but accrued exceptions - movel %d0,USER_FPSR(%a6) - fmovel #0,%FPSR |clear all user bits - fmovel #0,%FPCR |clear all user exceptions for FPSP - - clrb UFLG_TMP(%a6) |clr flag for unsupp data - - bsrl get_op |go get operand(s) - clrb STORE_FLG(%a6) - bsrl do_func |do the function - fsave -(%a7) |capture possible exc state - tstb STORE_FLG(%a6) - bnes no_store |if STORE_FLG is set, no store - bsrl sto_res |store the result in user space -no_store: - bral gen_except |post any exceptions and return - - |end |