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explicitly mask byte i/o values to bytes.

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This commit is contained in:
Ben Gras 2007-02-26 11:52:04 +00:00
parent 8c9e1cf4c5
commit 84b77d5bfd
1 changed files with 7 additions and 7 deletions
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14
drivers/sb16/sb16_dsp.c
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@ -584,11 +584,11 @@ int count;
/* set DMA mode */
pv_set(pvb[2], DMA8_MODE, (DmaMode == DEV_WRITE_S ? DMA8_AUTO_PLAY : DMA8_AUTO_REC));
pv_set(pvb[3], DMA8_ADDR, address >> 0); /* Low_byte of address */
pv_set(pvb[4], DMA8_ADDR, address >> 8); /* High byte of address */
pv_set(pvb[5], DMA8_PAGE, address >> 16); /* 64K page number */
pv_set(pvb[6], DMA8_COUNT, count >> 0); /* Low byte of count */
pv_set(pvb[7], DMA8_COUNT, count >> 8); /* High byte of count */
pv_set(pvb[3], DMA8_ADDR, (address >> 0) & 0xff); /* Low_byte of address */
pv_set(pvb[4], DMA8_ADDR, (address >> 8) & 0xff); /* High byte of address */
pv_set(pvb[5], DMA8_PAGE, (address >> 16) & 0xff); /* 64K page number */
pv_set(pvb[6], DMA8_COUNT, (count >> 0) & 0xff); /* Low byte of count */
pv_set(pvb[7], DMA8_COUNT, (count >> 8) & 0xff); /* High byte of count */
pv_set(pvb[8], DMA8_MASK, SB_DMA_8); /* Enable DMA channel */
sys_voutb(pvb, 9);
@ -605,8 +605,8 @@ int count;
pv_set(pvb[3], DMA16_ADDR, (address >> 1) & 0xFF); /* Low_byte of address */
pv_set(pvb[4], DMA16_ADDR, (address >> 9) & 0xFF); /* High byte of address */
pv_set(pvb[5], DMA16_PAGE, (address >> 16) & 0xFE); /* 128K page number */
pv_set(pvb[6], DMA16_COUNT, count >> 1); /* Low byte of count */
pv_set(pvb[7], DMA16_COUNT, count >> 9); /* High byte of count */
pv_set(pvb[6], DMA16_COUNT, (count >> 1) & 0xff); /* Low byte of count */
pv_set(pvb[7], DMA16_COUNT, (count >> 9) & 0xff); /* High byte of count */
pv_set(pvb[8], DMA16_MASK, SB_DMA_16 & 3); /* Enable DMA channel */
sys_voutb(pvb, 9);