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Ensures no out-of-bounds accesses to inverses on a IIe.

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Thomas Harte 2018-08-26 23:02:31 -04:00
parent 234bef2a88
commit 0599d9602e
1 changed files with 1 additions and 1 deletions
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2
Machines/AppleII/Video.cpp
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@ -148,7 +148,7 @@ void VideoBase::output_text(uint8_t *target, uint8_t *source, size_t length, siz
for(size_t c = 0; c < length; ++c) {
const int character = (source[c] | or_mask) & and_mask;
const uint8_t xor_mask = inverses[character >> 6];
const uint8_t xor_mask = inverses[(character&0xff) >> 6];
const std::size_t character_address = static_cast<std::size_t>(character << 3) + pixel_row;
const uint8_t character_pattern = character_rom_[character_address] ^ xor_mask;