1 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
2 MOTOROLA MICROPROCESSOR & MEMORY TECHNOLOGY GR
3 M68000 Hi-Performance Microprocessor Division
4 M68060 Software Package
5 Production Release P1.00 -- October 10, 1994
6
7 M68060 Software Package Copyright © 1993, 199
8
9 THE SOFTWARE is provided on an "AS IS" basis a
10 To the maximum extent permitted by applicable
11 MOTOROLA DISCLAIMS ALL WARRANTIES WHETHER EXPR
12 INCLUDING IMPLIED WARRANTIES OF MERCHANTABILIT
13 and any warranty against infringement with reg
14 (INCLUDING ANY MODIFIED VERSIONS THEREOF) and
15
16 To the maximum extent permitted by applicable
17 IN NO EVENT SHALL MOTOROLA BE LIABLE FOR ANY D
18 (INCLUDING WITHOUT LIMITATION, DAMAGES FOR LOS
19 BUSINESS INTERRUPTION, LOSS OF BUSINESS INFORM
20 ARISING OF THE USE OR INABILITY TO USE THE SOF
21 Motorola assumes no responsibility for the mai
22
23 You are hereby granted a copyright license to
24 so long as this entire notice is retained with
25 redistributed versions, and that such modified
26 No licenses are granted by implication, estopp
27 or trademarks of Motorola, Inc.
28 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
29
30 68060 FLOATING-POINT SOFTWARE PACKAGE (Library
31 ----------------------------------------------
32
33 The file fplsp.sa contains the "Library versio
34 68060SP Floating-Point Software Package. The r
35 included in this module can be used to emulate
36 FP instructions not implemented in 68060 hardw
37 instructions normally take exception vector #1
38 "FP Unimplemented Instruction".
39
40 By re-compiling a program that uses these inst
41 making subroutine calls in place of the unimpl
42 instructions, a program can avoid the overhead
43 with taking the exception.
44
45 Release file format:
46 --------------------
47 The file fplsp.sa is essentially a hexadecimal
48 release package. This is the ONLY format which
49 The hex image was created by assembling the so
50 then converting the resulting binary output im
51 ASCII text file. The hexadecimal numbers are l
52 using the Motorola Assembly Syntax assembler d
53 (define constant longword). The file can be co
54 assembly syntaxes by using any word processor
55 search and replace function.
56
57 To assist in assembling and linking this modul
58 the installer should add a symbolic label to t
59 This will allow calling routines to access the
60 of this package.
61
62 The source code fplsp.s has also been included
63 documentation purposes.
64
65 Release file structure:
66 -----------------------
67 The file fplsp.sa contains an "Entry-Point" se
68 code section. The FPLSP has no "Call-Out" sect
69 is the "Entry-Point" section. In order to acce
70 package, a program must "bsr" or "jsr" to the
71 below in "68060FPLSP entry points" that corres
72 function. A branch instruction located at the
73 within the package will then enter the correct
74
75 The entry point addresses at the beginning of
76 fixed so that a program calling the routines w
77 re-compiled with every new 68060FPLSP release.
78
79 There are 3 entry-points for each instruction
80 double precision, and extended precision.
81
82 As an example, the "fsin" library instruction
83 extended precision operand if program executes
84
85 # fsin.x fp0
86
87 fmovm.x &0x01,-(%sp) # pass operand
88 bsr.l _060FPLSP_TOP+0x1a8 # branch t
89 add.l &0xc,%sp # clear operan
90
91 Upon return, fp0 holds the correct result. The
92 set correctly. The FPCR is unchanged. The FPIA
93
94 Another example. This time, a dyadic operation
95
96 # frem.s %fp1,%fp0
97
98 fmov.s %fp1,-(%sp) # pass src ope
99 fmov.s %fp0,-(%sp) # pass dst ope
100 bsr.l _060FPLSP_TOP+0x168 # branch t
101 addq.l &0x8,%sp # clear operan
102
103 Again, the result is returned in fp0. Note tha
104 are passed in single precision format.
105
106 Exception reporting:
107 --------------------
108 The package takes exceptions according to the
109 entry. If an exception should be reported, the
110 this exception using implemented floating-poin
111 For example, if the instruction being emulated
112 floating-point Operand Error exception, then t
113 executes an FMUL of a zero and an infinity to
114 exception. Although the FPIAR will be undefine
115 Operand Error exception handler, the user will
116 to record that the event occurred.
117
118 Miscellaneous:
119 --------------
120 The package does not attempt to correctly emul
121 with Signalling NAN inputs. Use of SNANs shoul
122 this package.
123
124 The fabs/fadd/fdiv/fint/fintrz/fmul/fneg/fsqrt
125 are provided for the convenience of older comp
126 subroutine calls for all fp instructions. The
127 the instruction but rather simply executes it.
128
129 68060FPLSP entry points:
130 ------------------------
131 _060FPLSP_TOP:
132 0x000: _060LSP__facoss_
133 0x008: _060LSP__facosd_
134 0x010: _060LSP__facosx_
135 0x018: _060LSP__fasins_
136 0x020: _060LSP__fasind_
137 0x028: _060LSP__fasinx_
138 0x030: _060LSP__fatans_
139 0x038: _060LSP__fatand_
140 0x040: _060LSP__fatanx_
141 0x048: _060LSP__fatanhs_
142 0x050: _060LSP__fatanhd_
143 0x058: _060LSP__fatanhx_
144 0x060: _060LSP__fcoss_
145 0x068: _060LSP__fcosd_
146 0x070: _060LSP__fcosx_
147 0x078: _060LSP__fcoshs_
148 0x080: _060LSP__fcoshd_
149 0x088: _060LSP__fcoshx_
150 0x090: _060LSP__fetoxs_
151 0x098: _060LSP__fetoxd_
152 0x0a0: _060LSP__fetoxx_
153 0x0a8: _060LSP__fetoxm1s_
154 0x0b0: _060LSP__fetoxm1d_
155 0x0b8: _060LSP__fetoxm1x_
156 0x0c0: _060LSP__fgetexps_
157 0x0c8: _060LSP__fgetexpd_
158 0x0d0: _060LSP__fgetexpx_
159 0x0d8: _060LSP__fgetmans_
160 0x0e0: _060LSP__fgetmand_
161 0x0e8: _060LSP__fgetmanx_
162 0x0f0: _060LSP__flog10s_
163 0x0f8: _060LSP__flog10d_
164 0x100: _060LSP__flog10x_
165 0x108: _060LSP__flog2s_
166 0x110: _060LSP__flog2d_
167 0x118: _060LSP__flog2x_
168 0x120: _060LSP__flogns_
169 0x128: _060LSP__flognd_
170 0x130: _060LSP__flognx_
171 0x138: _060LSP__flognp1s_
172 0x140: _060LSP__flognp1d_
173 0x148: _060LSP__flognp1x_
174 0x150: _060LSP__fmods_
175 0x158: _060LSP__fmodd_
176 0x160: _060LSP__fmodx_
177 0x168: _060LSP__frems_
178 0x170: _060LSP__fremd_
179 0x178: _060LSP__fremx_
180 0x180: _060LSP__fscales_
181 0x188: _060LSP__fscaled_
182 0x190: _060LSP__fscalex_
183 0x198: _060LSP__fsins_
184 0x1a0: _060LSP__fsind_
185 0x1a8: _060LSP__fsinx_
186 0x1b0: _060LSP__fsincoss_
187 0x1b8: _060LSP__fsincosd_
188 0x1c0: _060LSP__fsincosx_
189 0x1c8: _060LSP__fsinhs_
190 0x1d0: _060LSP__fsinhd_
191 0x1d8: _060LSP__fsinhx_
192 0x1e0: _060LSP__ftans_
193 0x1e8: _060LSP__ftand_
194 0x1f0: _060LSP__ftanx_
195 0x1f8: _060LSP__ftanhs_
196 0x200: _060LSP__ftanhd_
197 0x208: _060LSP__ftanhx_
198 0x210: _060LSP__ftentoxs_
199 0x218: _060LSP__ftentoxd_
200 0x220: _060LSP__ftentoxx_
201 0x228: _060LSP__ftwotoxs_
202 0x230: _060LSP__ftwotoxd_
203 0x238: _060LSP__ftwotoxx_
204
205 0x240: _060LSP__fabss_
206 0x248: _060LSP__fabsd_
207 0x250: _060LSP__fabsx_
208 0x258: _060LSP__fadds_
209 0x260: _060LSP__faddd_
210 0x268: _060LSP__faddx_
211 0x270: _060LSP__fdivs_
212 0x278: _060LSP__fdivd_
213 0x280: _060LSP__fdivx_
214 0x288: _060LSP__fints_
215 0x290: _060LSP__fintd_
216 0x298: _060LSP__fintx_
217 0x2a0: _060LSP__fintrzs_
218 0x2a8: _060LSP__fintrzd_
219 0x2b0: _060LSP__fintrzx_
220 0x2b8: _060LSP__fmuls_
221 0x2c0: _060LSP__fmuld_
222 0x2c8: _060LSP__fmulx_
223 0x2d0: _060LSP__fnegs_
224 0x2d8: _060LSP__fnegd_
225 0x2e0: _060LSP__fnegx_
226 0x2e8: _060LSP__fsqrts_
227 0x2f0: _060LSP__fsqrtd_
228 0x2f8: _060LSP__fsqrtx_
229 0x300: _060LSP__fsubs_
230 0x308: _060LSP__fsubd_
231 0x310: _060LSP__fsubx_
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