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Getting rid of Page Table

This commit is contained in:
tudnai 2020-05-01 19:24:09 -07:00
parent 8c7fcc437a
commit 650f169f3a
1 changed files with 12 additions and 2 deletions
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14
src/dev/mem/mmio.h
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@ -934,9 +934,19 @@ INLINE uint8_t memread8( uint16_t addr ) {
/**
Naive implementation of RAM read from address
**/
INLINE uint16_t memread16_low( uint16_t addr ) {
return * (uint16_t*) ( RDLOMEM + addr );
}
INLINE uint16_t memread16_high( uint16_t addr ) {
return * (uint16_t*) ( RDHIMEM + addr );
}
INLINE uint16_t memread16( uint16_t addr ) {
return * (uint16_t*) ( RAM_PG_RD_TBL[addr >> 8] + (addr & 0xFF) );
// return * (uint16_t*) (RAM + addr);
if (addr >= 0xC000) {
return memread16_high(addr);
}
return memread16_low(addr);
}
INLINE uint8_t memread( uint16_t addr ) {