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/*===========================================================================*/
/* Copyright (C) 2001 Authors                                                */
/*                                                                           */
/* This source file may be used and distributed without restriction provided */
/* that this copyright statement is not removed from the file and that any   */
/* derivative work contains the original copyright notice and the associated */
/* disclaimer.                                                               */
/*                                                                           */
/* This source file is free software; you can redistribute it and/or modify  */
/* it under the terms of the GNU Lesser General Public License as published  */
/* by the Free Software Foundation; either version 2.1 of the License, or    */
/* (at your option) any later version.                                       */
/*                                                                           */
/* This source is distributed in the hope that it will be useful, but WITHOUT*/
/* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or     */
/* FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public       */
/* License for more details.                                                 */
/*                                                                           */
/* You should have received a copy of the GNU Lesser General Public License  */
/* along with this source; if not, write to the Free Software Foundation,    */
/* Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA        */
/*                                                                           */
/*===========================================================================*/
/*                 TWO-OPERAND ARITHMETIC: CMP[.B] INSTRUCTION               */
/*---------------------------------------------------------------------------*/
/* Test the CMP[.B] instruction.                                             */
/*                                                                           */
/* Author(s):                                                                */
/*             - Olivier Girard,    olgirard@gmail.com                       */
/*                                                                           */
/*---------------------------------------------------------------------------*/
/* $Rev: 101 $                                                                */
/* $LastChangedBy: olivier.girard $                                          */
/* $LastChangedDate: 2011-03-04 21:17:50 +0100 (Fri, 04 Mar 2011) $          */
/*===========================================================================*/
 
 
.global main
 
main:
        /* -------------- TEST INSTRUCTION IN WORD MODE ------------------- */
 
        # Test CMP without Carry bit set
        mov     #0x0000, r2
        mov     #0x3333, r4
        mov     #0x8888, r5
        cmp          r4, r5        ;# Compare r5-r4 (0x8888-0x3333=0x5555)
 
        # Test CMP with Carry bit set
        mov     #0x0001, r2
        mov     #0x5555, r4
        mov     #0x9999, r6
        cmp          r4, r6        ;# Compare r6-r4 (0x9999-0x5555=0x4444)
 
 
        mov     #0x1000, r15
 
 
        /* -------------- TEST INSTRUCTION IN BYTE MODE ------------------- */
 
        # Test CMP.B without Carry bit set
        mov     #0x0000, r2
        mov     #0x3333, r4
        mov     #0x8888, r5
        cmp.b        r4, r5        ;# Compare r5-r4 (0x0088-0x0033=0x0055)
 
        # Test CMP.B with Carry bit set
        mov     #0x0001, r2
        mov     #0x5555, r4
        mov     #0x9999, r6
        cmp.b        r4, r6        ;# Compare r6-r4 (0x0099-0x0055=0x0044)
 
 
        mov     #0x2000, r15
 
 
        /* ------------------ TEST FLAGS IN WORD MODE ---------------------- */
 
        mov     #0x0000, r2        ;# V=0, N=1, Z=0, C=0
        mov     #0x0aaa, r4        ;#
        mov     #0x0666, r5        ;#
        cmp          r4, r5        ;# Compare r5-r4 (0x0666-0x0aaa=0xfbbc)
        mov     #0x3000, r15
 
        mov     #0x0000, r2        ;# V=0, N=0, Z=0, C=1
        mov     #0x0444, r4        ;#
        mov     #0x0555, r5        ;#
        cmp          r4, r5        ;# Compare r5-r4 (0x0555-0x0444=0x0111)
        mov     #0x3001, r15
 
        mov     #0x0000, r2        ;# V=0, N=0, Z=1, C=1
        mov     #0x0333, r4        ;#
        mov     #0x0333, r5        ;#
        cmp          r4, r5        ;# Compare r5-r4 (0x0333-0x0333=0x0000)
        mov     #0x3002, r15
 
        mov     #0x0000, r2        ;# V=1, N=1, Z=0, C=0
        mov     #0x80ff, r4        ;#
        mov     #0x7ff0, r5        ;#
        cmp          r4, r5        ;# Compare r5-r4 (0x7ff0-0x80ff=0xfef1)
        mov     #0x3003, r15
 
        mov     #0x0000, r2        ;# V=1, N=0, Z=0, C=1
        mov     #0x7f00, r4        ;#
        mov     #0x8000, r5        ;#
        cmp          r4, r5        ;# Compare r5-r4 (0x8000-0x7f00=0x0100)
        mov     #0x3004, r15
 
 
        /* ------------------ TEST FLAGS IN BYTE MODE --------------------- */
 
        mov     #0x0000, r2        ;# V=0, N=1, Z=0, C=0
        mov     #0x890a, r4        ;#
        mov     #0x5106, r5        ;#
        cmp.b        r4, r5        ;# Compare r5-r4 (0x0006-0x000a=0x00fc)
        mov     #0x4000, r15
 
        mov     #0x0000, r2        ;# V=0, N=0, Z=0, C=1
        mov     #0xfa04, r4        ;#
        mov     #0x5305, r5        ;#
        cmp.b        r4, r5        ;# Compare r5-r4 (0x0005-0x0004=0x0001)
        mov     #0x4001, r15
 
        mov     #0x0000, r2        ;# V=0, N=0, Z=1, C=1
        mov     #0xe603, r4        ;#
        mov     #0x8a03, r5        ;#
        cmp.b        r4, r5        ;# Compare r5-r4 (0x0003-0x0003=0x0000)
        mov     #0x4002, r15
 
        mov     #0x0000, r2        ;# V=1, N=1, Z=0, C=0
        mov     #0x7387, r4        ;#
        mov     #0x817f, r5        ;#
        cmp.b        r4, r5        ;# Compare r5-r4 (0x007f-0x0087=0x00f8)
        mov     #0x4003, r15
 
        mov     #0x0000, r2        ;# V=1, N=0, Z=0, C=1
        mov     #0x8175, r4        ;#
        mov     #0x5480, r5        ;#
        cmp.b        r4, r5        ;# Compare r5-r4 (0x0080-0x0075=0x000b)
        mov     #0x4004, r15
 
 
        /* mmihai cmp.b  bug */
 
        mov     #0x0210, r5
        clr.b   0(r5)
        mov     #0x1, r4
        cmp.b   r4, 0(r5)
        jz      end_of_test        ;# should not happen
 
        mov     #0x4100, r15
 
 
        /* ----------------------         END OF TEST        --------------- */
        mov      #0x5000, r15
end_of_test:
        nop
        br #0xffff
 
 
        /* ----------------------         INTERRUPT VECTORS  --------------- */
 
.section .vectors, "a"
.word end_of_test  ; Interrupt  0 (lowest priority)    
.word end_of_test  ; Interrupt  1                      
.word end_of_test  ; Interrupt  2                      
.word end_of_test  ; Interrupt  3                      
.word end_of_test  ; Interrupt  4                      
.word end_of_test  ; Interrupt  5                      
.word end_of_test  ; Interrupt  6                      
.word end_of_test  ; Interrupt  7                      
.word end_of_test  ; Interrupt  8                      
.word end_of_test  ; Interrupt  9                      
.word end_of_test  ; Interrupt 10                      Watchdog timer
.word end_of_test  ; Interrupt 11                      
.word end_of_test  ; Interrupt 12                      
.word end_of_test  ; Interrupt 13                      
.word end_of_test  ; Interrupt 14                      NMI
.word main         ; Interrupt 15 (highest priority)   RESET

Line No.	Rev	Author	Line
1	2	olivier.gi	`/===========================================================================/`
2			`/* Copyright (C) 2001 Authors */`
3			`/* */`
4			`/* This source file may be used and distributed without restriction provided */`
5			`/* that this copyright statement is not removed from the file and that any */`
6			`/* derivative work contains the original copyright notice and the associated */`
7			`/* disclaimer. */`
8			`/* */`
9			`/* This source file is free software; you can redistribute it and/or modify */`
10			`/* it under the terms of the GNU Lesser General Public License as published */`
11			`/* by the Free Software Foundation; either version 2.1 of the License, or */`
12			`/* (at your option) any later version. */`
13			`/* */`
14			`/* This source is distributed in the hope that it will be useful, but WITHOUT*/`
15			`/* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or */`
16			`/* FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public */`
17			`/* License for more details. */`
18			`/* */`
19			`/* You should have received a copy of the GNU Lesser General Public License */`
20			`/* along with this source; if not, write to the Free Software Foundation, */`
21			`/* Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA */`
22			`/* */`
23			`/===========================================================================/`
24			`/* TWO-OPERAND ARITHMETIC: CMP[.B] INSTRUCTION */`
25			`/---------------------------------------------------------------------------/`
26			`/* Test the CMP[.B] instruction. */`
27	18	olivier.gi	`/* */`
28			`/* Author(s): */`
29			`/* - Olivier Girard, olgirard@gmail.com */`
30			`/* */`
31			`/---------------------------------------------------------------------------/`
32	19	olivier.gi	`/* $Rev: 101 $ */`
33			`/* $LastChangedBy: olivier.girard $ */`
34			`/* $LastChangedDate: 2011-03-04 21:17:50 +0100 (Fri, 04 Mar 2011) $ */`
35	2	olivier.gi	`/===========================================================================/`
36
37
38			`.global main`
39
40			`main:`
41			`/* -------------- TEST INSTRUCTION IN WORD MODE ------------------- */`
42
43			`# Test CMP without Carry bit set`
44			`mov #0x0000, r2`
45			`mov #0x3333, r4`
46			`mov #0x8888, r5`
47			`cmp r4, r5 ;# Compare r5-r4 (0x8888-0x3333=0x5555)`
48
49			`# Test CMP with Carry bit set`
50			`mov #0x0001, r2`
51			`mov #0x5555, r4`
52			`mov #0x9999, r6`
53			`cmp r4, r6 ;# Compare r6-r4 (0x9999-0x5555=0x4444)`
54
55
56			`mov #0x1000, r15`
57
58
59			`/* -------------- TEST INSTRUCTION IN BYTE MODE ------------------- */`
60
61			`# Test CMP.B without Carry bit set`
62			`mov #0x0000, r2`
63			`mov #0x3333, r4`
64			`mov #0x8888, r5`
65			`cmp.b r4, r5 ;# Compare r5-r4 (0x0088-0x0033=0x0055)`
66
67			`# Test CMP.B with Carry bit set`
68			`mov #0x0001, r2`
69			`mov #0x5555, r4`
70			`mov #0x9999, r6`
71			`cmp.b r4, r6 ;# Compare r6-r4 (0x0099-0x0055=0x0044)`
72
73
74			`mov #0x2000, r15`
75
76
77			`/* ------------------ TEST FLAGS IN WORD MODE ---------------------- */`
78
79			`mov #0x0000, r2 ;# V=0, N=1, Z=0, C=0`
80			`mov #0x0aaa, r4 ;#`
81			`mov #0x0666, r5 ;#`
82			`cmp r4, r5 ;# Compare r5-r4 (0x0666-0x0aaa=0xfbbc)`
83			`mov #0x3000, r15`
84
85			`mov #0x0000, r2 ;# V=0, N=0, Z=0, C=1`
86			`mov #0x0444, r4 ;#`
87			`mov #0x0555, r5 ;#`
88			`cmp r4, r5 ;# Compare r5-r4 (0x0555-0x0444=0x0111)`
89			`mov #0x3001, r15`
90
91			`mov #0x0000, r2 ;# V=0, N=0, Z=1, C=1`
92			`mov #0x0333, r4 ;#`
93			`mov #0x0333, r5 ;#`
94			`cmp r4, r5 ;# Compare r5-r4 (0x0333-0x0333=0x0000)`
95			`mov #0x3002, r15`
96
97			`mov #0x0000, r2 ;# V=1, N=1, Z=0, C=0`
98			`mov #0x80ff, r4 ;#`
99			`mov #0x7ff0, r5 ;#`
100			`cmp r4, r5 ;# Compare r5-r4 (0x7ff0-0x80ff=0xfef1)`
101			`mov #0x3003, r15`
102
103			`mov #0x0000, r2 ;# V=1, N=0, Z=0, C=1`
104			`mov #0x7f00, r4 ;#`
105			`mov #0x8000, r5 ;#`
106			`cmp r4, r5 ;# Compare r5-r4 (0x8000-0x7f00=0x0100)`
107			`mov #0x3004, r15`
108
109
110			`/* ------------------ TEST FLAGS IN BYTE MODE --------------------- */`
111
112			`mov #0x0000, r2 ;# V=0, N=1, Z=0, C=0`
113			`mov #0x890a, r4 ;#`
114			`mov #0x5106, r5 ;#`
115			`cmp.b r4, r5 ;# Compare r5-r4 (0x0006-0x000a=0x00fc)`
116			`mov #0x4000, r15`
117
118			`mov #0x0000, r2 ;# V=0, N=0, Z=0, C=1`
119			`mov #0xfa04, r4 ;#`
120			`mov #0x5305, r5 ;#`
121			`cmp.b r4, r5 ;# Compare r5-r4 (0x0005-0x0004=0x0001)`
122			`mov #0x4001, r15`
123
124			`mov #0x0000, r2 ;# V=0, N=0, Z=1, C=1`
125			`mov #0xe603, r4 ;#`
126			`mov #0x8a03, r5 ;#`
127			`cmp.b r4, r5 ;# Compare r5-r4 (0x0003-0x0003=0x0000)`
128			`mov #0x4002, r15`
129
130			`mov #0x0000, r2 ;# V=1, N=1, Z=0, C=0`
131			`mov #0x7387, r4 ;#`
132			`mov #0x817f, r5 ;#`
133			`cmp.b r4, r5 ;# Compare r5-r4 (0x007f-0x0087=0x00f8)`
134			`mov #0x4003, r15`
135
136			`mov #0x0000, r2 ;# V=1, N=0, Z=0, C=1`
137			`mov #0x8175, r4 ;#`
138			`mov #0x5480, r5 ;#`
139			`cmp.b r4, r5 ;# Compare r5-r4 (0x0080-0x0075=0x000b)`
140			`mov #0x4004, r15`
141
142
143	101	olivier.gi	`/* mmihai cmp.b bug */`
144
145			`mov #0x0210, r5`
146			`clr.b 0(r5)`
147			`mov #0x1, r4`
148			`cmp.b r4, 0(r5)`
149			`jz end_of_test ;# should not happen`
150
151			`mov #0x4100, r15`
152
153
154	2	olivier.gi	`/* ---------------------- END OF TEST --------------- */`
155			`mov #0x5000, r15`
156			`end_of_test:`
157			`nop`
158			`br #0xffff`
159
160
161			`/* ---------------------- INTERRUPT VECTORS --------------- */`
162
163			`.section .vectors, "a"`
164			`.word end_of_test ; Interrupt 0 (lowest priority)`
165			`.word end_of_test ; Interrupt 1`
166			`.word end_of_test ; Interrupt 2`
167			`.word end_of_test ; Interrupt 3`
168			`.word end_of_test ; Interrupt 4`
169			`.word end_of_test ; Interrupt 5`
170			`.word end_of_test ; Interrupt 6`
171			`.word end_of_test ; Interrupt 7`
172			`.word end_of_test ; Interrupt 8`
173			`.word end_of_test ; Interrupt 9`
174			`.word end_of_test ; Interrupt 10 Watchdog timer`
175			`.word end_of_test ; Interrupt 11`
176			`.word end_of_test ; Interrupt 12`
177			`.word end_of_test ; Interrupt 13`
178			`.word end_of_test ; Interrupt 14 NMI`
179			`.word main ; Interrupt 15 (highest priority) RESET`

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[/] [openmsp430/] [trunk/] [core/] [sim/] [rtl_sim/] [src/] [two-op_cmp.s43] - Blame information for rev 137