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assembly: 0.749
device: 0.731
performance: 0.699
mistranslation: 0.533
kernel: 0.477
ppc: 0.446
socket: 0.270
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boot: 0.257
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semantic: 0.231
i386: 0.231
debug: 0.213
arm: 0.209
risc-v: 0.203
virtual: 0.186
register: 0.169
vnc: 0.131
network: 0.118
hypervisor: 0.113
peripherals: 0.077
PID: 0.073
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permissions: 0.066
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files: 0.016

MIPS, self-modifying code and uncached memory

Self-modifying code does not work properly in MIPS in uncached and unmapped kseg1 memory region.

For example, when running this code I get unexpected behavior:

   0:	e3000010 	b	0x390
   4:	00000000 	nop
	...
 380:	00701f40 	mfc0	ra,c0_epc
 384:	0400e0bb 	swr	zero,4(ra)
 388:	18000042 	eret
 38c:	00000000 	nop
 390:	25500000 	move	t2,zero
 394:	02000b34 	li	t3,0x2
 398:	23504b01 	subu	t2,t2,t3
 39c:	e9003c0b 	j	0xcf003a4
 3a0:	0a004a21 	addi	t2,t2,10
 3a4:	ffff0010 	b	0x3a4
 3a8:	00000000 	nop
 3ac:	00000000 	nop

  I expect that swr instruction in line 384 would change `addi	t2,t2,1`0 to `nop`
This should work because no cache is used for this memory region.

Can you please provide full reproduction steps rather than just an assembly snippet?

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