regs/compare_fs.sh

@@ -1,9 +0,0 @@
-set -eux
-
-echo $1
-echo $2
-
-python ~/r500/regs/us_disassemble.py $1 > /run/user/$UID/$(basename $1)
-python ~/r500/regs/us_disassemble.py $2 > /run/user/$UID/$(basename $2)
-
-diff --color=always -u /run/user/$UID/$(basename $1) /run/user/$UID/$(basename $2)

tools/decode_float.py

@@ -1,12 +0,0 @@
-import struct
-import sys
-
-with open(sys.argv[1], 'r') as f:
-    buf = f.read()
-
-nums = [int(i.strip(), 16) for i in buf.split(',') if i.strip()]
-
-for num in nums:
-    data = struct.pack("<I", num)
-    f, = struct.unpack("<f", data)
-    print(f, 1024 * f)

tools/float_table.py

@@ -1,73 +0,0 @@
-nums = """
-        0 	0.001953125 	0.00390625 	0.005859375 	0.0078125 	0.009765625 	0.01171875 	0.013671875
- 	0.015625 	0.017578125 	0.01953125 	0.021484375 	0.0234375 	0.025390625 	0.02734375 	0.029296875
- 	0.03125 	0.03515625 	0.0390625 	0.04296875 	0.046875 	0.05078125 	0.0546875 	0.05859375
- 	0.0625 	0.0703125 	0.078125 	0.0859375 	0.09375 	0.1015625 	0.109375 	0.1171875
- 	0.125 	0.140625 	0.15625 	0.171875 	0.1875 	0.203125 	0.21875 	0.234375
- 	0.25 	0.28125 	0.3125 	0.34375 	0.375 	0.40625 	0.4375 	0.46875
- 	0.5 	0.5625 	0.625 	0.6875 	0.75 	0.8125 	0.875 	0.9375
- 	1 	1.125 	1.25 	1.375 	1.5 	1.625 	1.75 	1.875
- 	2 	2.25 	2.5 	2.75 	3 	3.25 	3.5 	3.75
- 	4 	4.5 	5 	5.5 	6 	6.5 	7 	7.5
- 	8 	9 	10 	11 	12 	13 	14 	15
- 	16 	18 	20 	22 	24 	26 	28 	30
- 	32 	36 	40 	44 	48 	52 	56 	60
- 	64 	72 	80 	88 	96 	104 	112 	120
- 	128 	144 	160 	176 	192 	208 	224 	240
-"""
-
-nums = [float(i) for i in nums.split()]
-
-def parse_043_float(i):
-    get_significand = lambda i: (i >> 0) & 0b111
-    get_exponent = lambda i: (i >> 3) & 0b1111
-    # ieee_754_bias = 2 ** (4 - 1) - 1
-    bias = 7
-
-    exponent = get_exponent(i)
-    significand = get_significand(i)
-
-    base = 8
-    if exponent > 0:
-        significand |= 0b1000
-    else:
-        # denormal
-        if significand == 0:
-            significand = 0b0001
-            base = 16
-        exponent = 1
-
-    value = (significand / base) * 2 ** (exponent - bias)
-    return value
-
-for i, num in enumerate(nums):
-    if num == 0:
-        continue
-    assert num == parse_043_float(i)
-
-assert max(range(128)) == 127
-assert min(range(128)) == 0
-
-def find_nearest(n):
-    value = parse_043_float(0)
-    nearest = 0
-    nearest_diff = abs(value - n)
-
-    for i in range(1, 128):
-        value = parse_043_float(i)
-        diff = abs(value - n)
-        if diff < nearest_diff:
-            nearest = i
-            nearest_diff = diff
-
-    return nearest, parse_043_float(nearest)
-
-if __name__ == "__main__":
-    import sys
-    number = sys.argv[1]
-    if '.' in number:
-        number = float(number)
-        print("nearest", number, *find_nearest(number))
-    else:
-        number = int(number, 10)
-        print(parse_043_float(number))

tools/pascal.py

@@ -1,14 +0,0 @@
-def tri(parents, depth):
-    if depth == 20:
-        return
-
-    new = [1] * (len(parents) + 1)
-    for i in range(1, len(parents)):
-        new[i] = parents[i] + parents[i - 1]
-    if len(new) % 2 == 1:
-        div = sum(new)
-        print(list(reversed([new[i] / div for i in range(len(new) // 2 + 1)])))
-    tri(new, depth + 1)
-
-parents = [1, 2, 1]
-tri(parents, 2)