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-rw-r--r--shared-module/displayio/Display.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/shared-module/displayio/Display.c b/shared-module/displayio/Display.c
index 3936f3b17..b7ed2c64c 100644
--- a/shared-module/displayio/Display.c
+++ b/shared-module/displayio/Display.c
@@ -222,7 +222,7 @@ void displayio_display_set_region_to_update(displayio_display_obj_t* self, uint1
uint16_t data[2];
self->send(self->bus, true, &self->set_column_command, 1);
if (self->single_byte_bounds) {
- data[0] = __builtin_bswap16((x0 + self->colstart) << 8 | (x1 - 1 + self->colstart) && 0xFF);
+ data[0] = __builtin_bswap16(((x0 + self->colstart) << 8) | ((x1 - 1 + self->colstart) & 0xFF));
self->send(self->bus, false, (uint8_t*) data, 2);
} else {
data[0] = __builtin_bswap16(x0 + self->colstart);
@@ -231,7 +231,7 @@ void displayio_display_set_region_to_update(displayio_display_obj_t* self, uint1
}
self->send(self->bus, true, &self->set_row_command, 1);
if (self->single_byte_bounds) {
- data[0] = __builtin_bswap16((y0 + self->rowstart) << 8 | (y1 - 1 + self->rowstart) && 0xFF);
+ data[0] = __builtin_bswap16(((y0 + self->rowstart) << 8) | ((y1 - 1 + self->rowstart) & 0xFF));
self->send(self->bus, false, (uint8_t*) data, 2);
} else {
data[0] = __builtin_bswap16(y0 + self->rowstart);