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Obeys stated memory size.

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This commit is contained in:
Thomas Harte 2019-11-03 21:18:17 -05:00
parent 48b0d8c329
commit e9965c2738
1 changed files with 2 additions and 2 deletions
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4
Machines/AtariST/DMAController.cpp
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@ -179,7 +179,7 @@ int DMAController::bus_grant(uint16_t *ram, size_t size) {
if(!buffer_[active_buffer_ ^ 1].is_full) return 0;
for(int c = 0; c < 8; ++c) {
ram[address_ >> 1] = uint16_t(
ram[size_t(address_ >> 1) & (size - 1)] = uint16_t(
(buffer_[active_buffer_ ^ 1].contents[(c << 1) + 0] << 8) |
(buffer_[active_buffer_ ^ 1].contents[(c << 1) + 1] << 0)
);
@ -191,7 +191,7 @@ int DMAController::bus_grant(uint16_t *ram, size_t size) {
if(!buffer_[active_buffer_ ].is_full) return 8;
for(int c = 0; c < 8; ++c) {
ram[address_ >> 1] = uint16_t(
ram[size_t(address_ >> 1) & (size - 1)] = uint16_t(
(buffer_[active_buffer_].contents[(c << 1) + 0] << 8) |
(buffer_[active_buffer_].contents[(c << 1) + 1] << 0)
);