1 files changed, 0 insertions, 151 deletions
diff --git a/picorv32/firmware/multest.c b/picorv32/firmware/multest.c
deleted file mode 100644
index 1706400..0000000
--- a/picorv32/firmware/multest.c
+++ /dev/null
@@ -1,151 +0,0 @@
-// This is free and unencumbered software released into the public domain.
-//
-// Anyone is free to copy, modify, publish, use, compile, sell, or
-// distribute this software, either in source code form or as a compiled
-// binary, for any purpose, commercial or non-commercial, and by any
-// means.
-
-#include "firmware.h"
-
-static uint32_t xorshift32(void) {
-	static uint32_t x = 314159265;
-	x ^= x << 13;
-	x ^= x >> 17;
-	x ^= x << 5;
-	return x;
-}
-
-void multest(void)
-{
-	for (int i = 0; i < 15; i++)
-	{
-		uint32_t a = xorshift32();
-		uint32_t b = xorshift32();
-
-		switch (i)
-		{
-		case 0:
-			a = 0x80000000;
-			b = 0xFFFFFFFF;
-			break;
-		case 1:
-			a = 0;
-			b = 0;
-			break;
-		case 2:
-			a |= 0x80000000;
-			b = 0;
-			break;
-		case 3:
-			a &= 0x7FFFFFFF;
-			b = 0;
-			break;
-		}
-
-		uint64_t au = a, bu = b;
-		int64_t as = (int32_t)a, bs = (int32_t)b;
-
-		print_str("input     [");
-		print_hex(as >> 32, 8);
-		print_str("] ");
-		print_hex(a, 8);
-		print_str(" [");
-		print_hex(bs >> 32, 8);
-		print_str("] ");
-		print_hex(b, 8);
-		print_chr('\n');
-
-		uint32_t h_mul, h_mulh, h_mulhsu, h_mulhu;
-		print_str("hard mul   ");
-
-		h_mul = hard_mul(a, b);
-		print_hex(h_mul, 8);
-		print_str("  ");
-
-		h_mulh = hard_mulh(a, b);
-		print_hex(h_mulh, 8);
-		print_str("  ");
-
-		h_mulhsu = hard_mulhsu(a, b);
-		print_hex(h_mulhsu, 8);
-		print_str("  ");
-
-		h_mulhu = hard_mulhu(a, b);
-		print_hex(h_mulhu, 8);
-		print_chr('\n');
-
-		uint32_t s_mul, s_mulh, s_mulhsu, s_mulhu;
-		print_str("soft mul   ");
-
-		s_mul = a * b;
-		print_hex(s_mul, 8);
-		print_str("  ");
-
-		s_mulh = (as * bs) >> 32;
-		print_hex(s_mulh, 8);
-		print_str("  ");
-
-		s_mulhsu = (as * bu) >> 32;
-		print_hex(s_mulhsu, 8);
-		print_str("  ");
-
-		s_mulhu = (au * bu) >> 32;
-		print_hex(s_mulhu, 8);
-		print_str("  ");
-
-		if (s_mul != h_mul || s_mulh != h_mulh || s_mulhsu != h_mulhsu || s_mulhu != h_mulhu) {
-			print_str("ERROR!\n");
-			__asm__ volatile ("ebreak");
-			return;
-		}
-
-		print_str(" OK\n");
-
-		uint32_t h_div, h_divu, h_rem, h_remu;
-		print_str("hard div   ");
-
-		h_div = hard_div(a, b);
-		print_hex(h_div, 8);
-		print_str("  ");
-
-		h_divu = hard_divu(a, b);
-		print_hex(h_divu, 8);
-		print_str("  ");
-
-		h_rem = hard_rem(a, b);
-		print_hex(h_rem, 8);
-		print_str("  ");
-
-		h_remu = hard_remu(a, b);
-		print_hex(h_remu, 8);
-		print_chr('\n');
-
-		uint32_t s_div, s_divu, s_rem, s_remu;
-		print_str("soft div   ");
-
-		s_div = b ? as / bs : 0xffffffff;
-		print_hex(s_div, 8);
-		print_str("  ");
-
-		s_divu = b ? au / bu : 0xffffffff;
-		print_hex(s_divu, 8);
-		print_str("  ");
-
-		s_rem = b ? as % bs : a;
-		print_hex(s_rem, 8);
-		print_str("  ");
-
-		s_remu = b ? au % bu : a;
-		print_hex(s_remu, 8);
-		print_str("  ");
-
-		if (s_div != h_div || s_divu != h_divu || s_rem != h_rem || s_remu != h_remu) {
-			print_str("ERROR!\n");
-			__asm__ volatile ("ebreak");
-			return;
-		}
-
-		print_str(" OK\n");
-	}
-}
-