File: usp.S

package info (click to toggle)
gdb-doc 13.1-1
  • links: PTS, VCS
  • area: non-free
  • in suites: bookworm
  • size: 234,284 kB
  • sloc: ansic: 1,988,072; asm: 373,465; exp: 187,579; cpp: 75,697; makefile: 69,432; sh: 24,829; yacc: 11,654; python: 9,602; ada: 6,680; xml: 6,073; perl: 5,077; pascal: 3,357; f90: 2,555; tcl: 1,902; lisp: 1,578; cs: 879; lex: 759; sed: 228; awk: 154; objc: 137; fortran: 57
file content (50 lines) | stat: -rw-r--r-- 674 bytes parent folder | download | duplicates (33) 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
 
# Blackfin testcase for USP handling
# mach: bfin
# sim: --environment operating

#include "test.h"
	.include "testutils.inc"

	start

	imm32 R5, 0x44455566
	imm32 R6, 0x12345678
	imm32 R7, 0x9abcdef0

	imm32 p0, EVT3;
	loadsym r0, exception;
	[p0] = r0;

	loadsym r0, usermode;
	reti = r0;

	SP = R6;
	USP = R7;
	RTI;

usermode:
	# SP should now be USP
	R1 = SP;
	CC = R1 == R7;
	IF !CC JUMP fail;

	# Now set SP to another value
	SP = R5;

	# Move up to exception space
	EXCPT 0;

exception:
	# SP should be the same as original, but USP should change
	R1 = SP;
	CC = R1 == R6;
	IF !CC JUMP fail;

	R1 = USP;
	CC = R1 == R5;
	IF !CC JUMP fail;

	dbg_pass

fail:
	dbg_fail