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https://github.com/espressif/binutils-gdb.git
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9d4db627b2
The BPF assembler has been updated to follow the clang convention in the interpretation of semicolons: they separate statements and directives, and do not start line comments.
122 lines
3.2 KiB
ArmAsm
122 lines
3.2 KiB
ArmAsm
# mach: bpf
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# output: pass\nexit 0 (0x0)\n
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/* alu.s
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Tests for ALU64 BPF instructions in simulator. */
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.include "testutils.inc"
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.text
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.global main
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.type main, @function
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main:
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mov %r1, 0
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mov %r2, -1
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/* add */
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add %r1, 1
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add %r2, -1
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add %r1, %r2
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fail_ne %r1, -1
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/* sub */
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sub %r1, %r1
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fail_ne %r1, 0
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sub %r1, 10
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sub %r2, %r1
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fail_ne %r2, 8
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/* mul */
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mul %r2, %r2 /* r2 = 64 */
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mul %r2, 3 /* r2 = 192 */
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mov %r1, -3
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mul %r1, %r2 /* r1 = -576 */
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mul %r2, 0
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fail_ne %r1, -576
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fail_ne %r2, 0
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mul %r1, %r1
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mul %r1, %r1
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fail_ne %r1, 110075314176
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/* div */
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div %r2, %r1
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fail_ne %r2, 0
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div %r1, 10000
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fail_ne %r1, 11007531
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div %r1, %r1
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fail_ne %r1, 1
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/* div is unsigned */
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lddw %r1, -8
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div %r1, 2
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fail_ne %r1, 0x7ffffffffffffffc /* sign bits NOT maintained - large pos. */
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/* and */
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lddw %r1, 0xaaaaaaaa55555555
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and %r1, 0x55aaaaaa /* we still only have 32-bit imm. */
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fail_ne %r1, 0x0000000055000000
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lddw %r2, 0x5555555a5aaaaaaa
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and %r2, %r1
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fail_ne %r2, 0x0000000050000000
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/* or */
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or %r2, -559038737 /* 0xdeadbeef */
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fail_ne %r2, 0xffffffffdeadbeef /* 0xdeadbeef gets sign extended */
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lddw %r1, 0xdead00000000beef
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lddw %r2, 0x0000123456780000
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or %r1, %r2
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fail_ne %r1, 0xdead12345678beef
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/* lsh */
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mov %r1, -559038737 /* 0xdeadbeef */
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lsh %r1, 11
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fail_ne %r1, 0xfffffef56df77800 /* because deadbeef gets sign ext. */
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mov %r2, 21
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lsh %r1, %r2
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fail_ne %r1, 0xdeadbeef00000000
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/* rsh */
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rsh %r1, 11
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fail_ne %r1, 0x001bd5b7dde00000 /* 0xdeadbeef 00000000 >> 0xb */
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rsh %r1, %r2
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fail_ne %r1, 0x00000000deadbeef
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/* arsh */
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arsh %r1, 8
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fail_ne %r1, 0x0000000000deadbe
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lsh %r1, 40 /* r1 = 0xdead be00 0000 0000 */
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arsh %r1, %r2 /* r1 arsh (r2 == 21) */
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fail_ne %r1, 0xfffffef56df00000
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/* mod */
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mov %r1, 1025
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mod %r1, 16
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fail_ne %r1, 1
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/* mod is unsigned */
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mov %r1, 1025
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mod %r1, -16 /* mod unsigned -> will treat as large positive */
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fail_ne %r1, 1025
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mov %r1, -25 /* -25 is 0xff..ffe7 */
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mov %r2, 5 /* ... which when unsigned is a large positive */
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mod %r1, %r2 /* ... which is not evenly divisible by 5 */
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fail_ne %r1, 1
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/* xor */
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mov %r1, 0
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xor %r1, %r2
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fail_ne %r1, 5
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xor %r1, 0x7eadbeef
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fail_ne %r1, 0x7eadbeea
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xor %r1, %r1
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fail_ne %r1, 0
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/* neg */
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neg %r2
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fail_ne %r2, -5
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mov %r1, -1025
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neg %r1
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fail_ne %r1, 1025
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pass
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