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FDC FIFO now ignored completely when FIFO length is 1 byte.

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This commit is contained in:
OBattler
2016-10-06 01:40:23 +02:00
parent f27a2732fb
commit 809c0bb5ee
1 changed files with 2 additions and 2 deletions
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4
src/fdc.c
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@@ -1598,7 +1598,7 @@ int fdc_data(uint8_t data)
return -1; return -1;
} }
if (fdc.pcjr || !fdc.fifo) if (fdc.pcjr || !fdc.fifo || (fdc.tfifo <= 1))
{ {
fdc.dat = data; fdc.dat = data;
fdc.data_ready = 1; fdc.data_ready = 1;
@@ -1621,7 +1621,7 @@ int fdc_data(uint8_t data)
if (dma_channel_write(2, data) & DMA_OVER) if (dma_channel_write(2, data) & DMA_OVER)
fdc.tc = 1; fdc.tc = 1;
if (!fdc.fifo) if (!fdc.fifo || (fdc.tfifo <= 1))
{ {
fdc.data_ready = 1; fdc.data_ready = 1;
fdc.stat = 0xd0; fdc.stat = 0xd0;