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Fixed guide in the way that prevents people from making a mistake #138

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18 changes: 9 additions & 9 deletions gpu-patching/nvidia-patching/README.md
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Original file line number Diff line number Diff line change
Expand Up @@ -72,26 +72,26 @@ GeForce GT 220

Amount of VRAM present on your card, in hexadecimal.

For this example, lets convert 1024MB to hexadecimal:
For this example, lets convert 2048MB/2GB to hexadecimal:

```md
# Convert 1024MB Megabytes to Bytes
echo '1024 * 1024 * 1024' | bc
1073741824
# Convert 2048MB Megabytes to Bytes
echo '2048 * 1024 * 1024' | bc
2147483648

# Convert from decimal to hexadecimal
echo 'obase=16; ibase=10; 1073741824' | bc
40000000
echo 'obase=16; ibase=10; 2147483648' | bc
80000000

# Hexswap so it can be injected correctly
# ie. swap in pairs
40000000 -> 40 00 00 00 -> 00 00 00 40
80000000 -> 80 00 00 00 -> 00 00 00 80

# Pad the value to 8 bytes with 00 at the end
00 00 00 40 00 00 00 00
00 00 00 80 00 00 00 00

# And you're done
VRAM,totalsize = 0000004000000000
VRAM,totalsize = 0000008000000000
```

### rom-revision
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