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ibzmo 2020-12-20 10:32:11 +00:00
parent f8dbdeaccd
commit 62c7ffc32b
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31
reference/edgecases/sravref.txt
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@ -1,48 +1,43 @@
==SRAV Shift right arithmetic variable ==
==SRA Shift right arithmetic ==
srav -2 // Will it be able to handle shifts greater than the highest 1 value
sra -3 // Will it be able to handle shifts greater than the highest 1 value
ori $4,$0,6
ori $5,$0,16
srav $2,$5,$4
ori $4,$0,16
sra $2,$4, 6
jr $0
ref = 0
34040006
34050010
34040010
00000008
00851007
00041183
srav - 3 // negative number - does it sign extened (negative)
sra- 4 // negative number - does it sign extened (negative)
lui $4, 0xFFFF
ori $4, $4, 0x00FF
ori $5, $0, 4
srav $2, $4, $5
sra $2, $4, 4
jr $0
ref = FFFFF00F (4294963215 / -4081)
3c04ffff
348400ff
34050004
00000008
00A41007
00041103
srav - 4 // Does it sign extend 0s
sra - 5 // Does it sign extend 0s
lui $4, 0x0FFF
ori $4, $4, 0x00FF
ori $5, $0, 4
srav $2, $4, $5
sra $2, $4, 4
jr $0
ref = 00FFF00F (16773135)
3c040fff
348400ff
34050004
00000008
00A41007
00041103