LiteX Loop Test

main.c

int main(int i, char **c)
{
	char buffer[64];
	int sdr_ok;
	int j;

	irq_setmask(0);
	irq_setie(1);
	uart_init();
	for(j = (int) 'A'; j < 256; j++)
		uart_write((char) j);
  leds_out_write(0xFF);
}

main.S

00080f88 <main>:
   80f88:	37 9c fe 90 	addi sp,sp,-368
   80f8c:	5b 8b 00 2c 	sw (sp+44),r11
   80f90:	5b 8c 00 28 	sw (sp+40),r12
   80f94:	5b 8d 00 24 	sw (sp+36),r13
   80f98:	5b 8e 00 20 	sw (sp+32),r14
   80f9c:	5b 8f 00 1c 	sw (sp+28),r15
   80fa0:	5b 90 00 18 	sw (sp+24),r16
   80fa4:	5b 91 00 14 	sw (sp+20),r17
   80fa8:	5b 92 00 10 	sw (sp+16),r18
   80fac:	5b 93 00 0c 	sw (sp+12),r19
   80fb0:	5b 94 00 08 	sw (sp+8),r20
   80fb4:	5b 9d 00 04 	sw (sp+4),ra
   80fb8:	34 01 00 00 	mvi r1,0
   80fbc:	d0 21 00 00 	wcsr IM,r1
   80fc0:	34 01 00 01 	mvi r1,1
   80fc4:	d0 01 00 00 	wcsr IE,r1
   80fc8:	34 0b 00 41 	mvi r11,65
   80fcc:	f8 00 08 8d 	calli 83200 <uart_init>
   80fd0:	34 0c 01 00 	mvi r12,256
   80fd4:	b9 60 08 00 	mv r1,r11
   80fd8:	35 6b 00 01 	addi r11,r11,1
   80fdc:	f8 00 08 61 	calli 83160 <uart_write>
   80fe0:	5d 6c ff fd 	bne r11,r12,80fd4 <main+0x4c>
   80fe4:	34 02 00 ff 	mvi r2,255
   80fe8:	38 01 30 00 	mvu r1,0x3000
   80fec:	78 21 e0 00 	orhi r1,r1,0xe000
   80ff0:	58 22 00 00 	sw (r1+0),r2
   80ff4:	78 02 00 08 	mvhi r2,0x8
   80ff8:	38 42 3f e0 	ori r2,r2,0x3fe0
   80ffc:	28 41 00 00 	lw r1,(r2+0)

results.txt

ABCDFHJLNOQ
ABCDFHJLNPQ
ABCDFHJLNPR
ABCDFHJLNPR
ABCDFHJLNPR
ABCDFHJLNPR
ABCDFHJLNPQ
ABCDFHJLNOQ
ABCDFHJLNOR
ABCDFHJLNOQ