4 * Copyright Roman Zippel, 1997. All rights reserved.
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions
9 * 1. Redistributions of source code must retain the above copyright
10 * notice, and the entire permission notice in its entirety,
11 * including the disclaimer of warranties.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 * notice, this list of conditions and the following disclaimer in the
14 * documentation and/or other materials provided with the distribution.
15 * 3. The name of the author may not be used to endorse or promote
16 * products derived from this software without specific prior
19 * ALTERNATIVELY, this product may be distributed under the terms of
20 * the GNU General Public License, in which case the provisions of the GPL are
21 * required INSTEAD OF the above restrictions. (This clause is
22 * necessary due to a potential bad interaction between the GPL and
23 * the restrictions contained in a BSD-style copyright.)
25 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED
26 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
27 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
28 * DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT,
29 * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
30 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
31 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
32 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
33 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
34 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
35 * OF THE POSSIBILITY OF SUCH DAMAGE.
38 #include <linux/linkage.h>
39 #include <asm/entry.h>
45 .globl fp_err_ua1,fp_err_ua2
52 #if defined(CPU_M68020_OR_M68030) && defined(CPU_M68040_OR_M68060)
56 #if defined(CPU_M68040_OR_M68060)
57 move.l (FPS_PC2,%sp),(FPS_PC,%sp)
60 | emulate the instruction
63 #if defined(CONFIG_M68060)
64 #if !defined(CPU_M68060_ONLY)
65 btst #3,m68k_cputype+3
72 | emulation successful?
74 jeq ret_from_exception
76 | send some signal to program here
78 jra ret_from_exception
80 | we jump here after an access error while trying to access
81 | user space, we correct stackpointer and send a SIGSEGV to
92 jra ret_from_exception
94 #if defined(CONFIG_M68060)
95 | send a trace signal if we are debugged
96 | it does not really belong here, but...
98 move.l (FPS_PC,%sp),-(%sp)
103 jra ret_from_exception
106 .globl fp_get_data_reg, fp_put_data_reg
107 .globl fp_get_addr_reg, fp_put_addr_reg
109 | Entry points to get/put a register. Some of them can be get/put
110 | directly, others are on the stack, as we read/write the stack
111 | directly here, these function may only be called from within
112 | instruction decoding, otherwise the stack pointer is incorrect
113 | and the stack gets corrupted.
115 jmp ([0f:w,%pc,%d0.w*4])
119 .long fp_get_d0, fp_get_d1
120 .long fp_get_d2, fp_get_d3
121 .long fp_get_d4, fp_get_d5
122 .long fp_get_d6, fp_get_d7
125 move.l (PT_D0+8,%sp),%d0
126 printf PREGISTER,"{d0->%08x}",1,%d0
130 move.l (PT_D1+8,%sp),%d0
131 printf PREGISTER,"{d1->%08x}",1,%d0
135 move.l (PT_D2+8,%sp),%d0
136 printf PREGISTER,"{d2->%08x}",1,%d0
141 printf PREGISTER,"{d3->%08x}",1,%d0
146 printf PREGISTER,"{d4->%08x}",1,%d0
151 printf PREGISTER,"{d5->%08x}",1,%d0
156 printf PREGISTER,"{d6->%08x}",1,%d0
161 printf PREGISTER,"{d7->%08x}",1,%d0
165 jmp ([0f:w,%pc,%d1.w*4])
169 .long fp_put_d0, fp_put_d1
170 .long fp_put_d2, fp_put_d3
171 .long fp_put_d4, fp_put_d5
172 .long fp_put_d6, fp_put_d7
175 printf PREGISTER,"{d0<-%08x}",1,%d0
176 move.l %d0,(PT_D0+8,%sp)
180 printf PREGISTER,"{d1<-%08x}",1,%d0
181 move.l %d0,(PT_D1+8,%sp)
185 printf PREGISTER,"{d2<-%08x}",1,%d0
186 move.l %d0,(PT_D2+8,%sp)
190 printf PREGISTER,"{d3<-%08x}",1,%d0
192 move.l %d0,(PT_D3+8,%sp)
196 printf PREGISTER,"{d4<-%08x}",1,%d0
198 move.l %d0,(PT_D4+8,%sp)
202 printf PREGISTER,"{d5<-%08x}",1,%d0
204 move.l %d0,(PT_D5+8,%sp)
208 printf PREGISTER,"{d6<-%08x}",1,%d0
213 printf PREGISTER,"{d7<-%08x}",1,%d0
218 jmp ([0f:w,%pc,%d0.w*4])
222 .long fp_get_a0, fp_get_a1
223 .long fp_get_a2, fp_get_a3
224 .long fp_get_a4, fp_get_a5
225 .long fp_get_a6, fp_get_a7
228 move.l (PT_A0+8,%sp),%a0
229 printf PREGISTER,"{a0->%08x}",1,%a0
233 move.l (PT_A1+8,%sp),%a0
234 printf PREGISTER,"{a1->%08x}",1,%a0
238 move.l (PT_A2+8,%sp),%a0
239 printf PREGISTER,"{a2->%08x}",1,%a0
244 printf PREGISTER,"{a3->%08x}",1,%a0
249 printf PREGISTER,"{a4->%08x}",1,%a0
254 printf PREGISTER,"{a5->%08x}",1,%a0
259 printf PREGISTER,"{a6->%08x}",1,%a0
264 printf PREGISTER,"{a7->%08x}",1,%a0
268 jmp ([0f:w,%pc,%d0.w*4])
272 .long fp_put_a0, fp_put_a1
273 .long fp_put_a2, fp_put_a3
274 .long fp_put_a4, fp_put_a5
275 .long fp_put_a6, fp_put_a7
278 printf PREGISTER,"{a0<-%08x}",1,%a0
279 move.l %a0,(PT_A0+8,%sp)
283 printf PREGISTER,"{a1<-%08x}",1,%a0
284 move.l %a0,(PT_A1+8,%sp)
288 printf PREGISTER,"{a2<-%08x}",1,%a0
289 move.l %a0,(PT_A2+8,%sp)
293 printf PREGISTER,"{a3<-%08x}",1,%a0
298 printf PREGISTER,"{a4<-%08x}",1,%a0
303 printf PREGISTER,"{a5<-%08x}",1,%a0
308 printf PREGISTER,"{a6<-%08x}",1,%a0
313 printf PREGISTER,"{a7<-%08x}",1,%a0
322 .long PMINSTR+PMDECODE+PMCONV+PMNORM
323 | .long PMCONV+PMNORM+PMINSTR