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Merge pull request #1000 from tiseno100/master

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Few more additional fixes on the Intel 82335
This commit is contained in:
Miran Grča
2020-09-11 22:09:16 +02:00
committed by GitHub
parent 43a2c2b15e 00c70a83b7
commit b0d17385bd
1 changed files with 4 additions and 0 deletions
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4
src/chipset/intel_82335.c
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@@ -38,6 +38,9 @@
#define extended_granuality_enabled (dev->regs[0x2c] & 0x01)
#define determine_video_ram_write_access ((dev->regs[0x22] & (0x08 << 8)) ? rw_shadow : ro_shadow)
#define enable_top_128kb (MEM_READ_INTERNAL | MEM_WRITE_INTERNAL)
#define disable_top_128kb (MEM_READ_DISABLED | MEM_WRITE_DISABLED)
typedef struct
{
@@ -83,6 +86,7 @@ intel_82335_write(uint16_t addr, uint16_t val, void *priv)
case 0x22:
if (!extended_granuality_enabled)
{
mem_set_mem_state_both(0x80000, 0x20000, (dev->regs[0x22] & 0x08) ? enable_top_128kb : disable_top_128kb);
mem_set_mem_state_both(0xa0000, 0x20000, (dev->regs[0x22] & (0x04 << 8)) ? determine_video_ram_write_access : disabled_shadow);
mem_set_mem_state_both(0xc0000, 0x20000, (dev->regs[0x22] & (0x02 << 8)) ? rw_shadow : disabled_shadow);
mem_set_mem_state_both(0xe0000, 0x20000, (dev->regs[0x22] & 0x01) ? rw_shadow : disabled_shadow);