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[/] [amber/] [trunk/] [hw/] [tests/] [add.S] - Diff between revs 2 and 35
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Rev 35 |
| Line 37... |
Line 37... |
// from http://www.opencores.org/lgpl.shtml //
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// from http://www.opencores.org/lgpl.shtml //
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// //
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// //
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*****************************************************************/
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*****************************************************************/
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#include "amber_registers.h"
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#include "amber_registers.h"
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#include "amber_macros.h"
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.section .text
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.section .text
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.globl main
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.globl main
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main:
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main:
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/* 3 + 1 */
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/* 3 + 1 */
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mov r1, #3
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mov r1, #3
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mov r2, #1
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mov r2, #1
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add r3, r1, r2
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add r3, r1, r2
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cmp r3, #4
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expect r3, 4, __LINE__
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movne r10, #10
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bne testfail
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/* 0 + 0 */
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/* 0 + 0 */
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mov r4, #0
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mov r4, #0
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mov r5, #0
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mov r5, #0
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add r6, r5, r4
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add r6, r5, r4
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cmp r6, #0
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expect r6, 0, __LINE__
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movne r10, #20
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bne testfail
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/* 0 + -1 */
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/* 0 + -1 */
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mov r7, #0
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mov r7, #0
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mov r8, #-1
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mov r8, #-1
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add r9, r7, r8
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add r9, r7, r8
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cmp r9, #-1
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expect r9, -1, __LINE__
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movne r10, #30
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bne testfail
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/* -1 + 0 */
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/* -1 + 0 */
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mov r1, #-1
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mov r1, #-1
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mov r2, #0
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mov r2, #0
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add r3, r1, r2
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add r3, r1, r2
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cmp r3, #-1
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expect r3, -1, __LINE__
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movne r10, #40
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bne testfail
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/* -1 + -1 */
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/* -1 + -1 */
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mov r4, #-1
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mov r4, #-1
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mov r5, #-1
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mov r5, #-1
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add r6, r4, r5
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add r6, r4, r5
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cmp r6, #-2
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expect r6, -2, __LINE__
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movne r10, #50
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bne testfail
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/* -1 + -255 */
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/* -1 + -255 */
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mov r7, #-1
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mov r7, #-1
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mov r8, #-255
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mov r8, #-255
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add r9, r7, r8
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add r9, r7, r8
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cmp r9, #-256
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expect r9, -256, __LINE__
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movne r10, #60
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bne testfail
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/* 1 + 0x7fffffff */
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/* 1 + 0x7fffffff */
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ldr r1, MaxPos
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ldr r1, MaxPos
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mov r2, #1
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mov r2, #1
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adds r3, r1, r2
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adds r3, r1, r2
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/* this should generate an overflow */
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/* this should generate an overflow */
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/* so if the V flag is Clear then fail */
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/* so if the V flag is Clear then fail */
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bvc testfail
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bvc testfail
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ldr r0, MaxNeg
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ldr r0, MaxNeg
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cmp r0, r3
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compare r0, r3, __LINE__
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movne r10, #70
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bne testfail
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b testpass
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b testpass
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testfail:
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testfail:
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ldr r11, AdrTestStatus
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ldr r11, AdrTestStatus
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str r10, [r11]
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str r10, [r11]
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