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Mark disks as write protected

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This commit is contained in:
tudnai 2020-06-12 07:29:14 -07:00
parent c88a7a33a8
commit eea48cb7a0
1 changed files with 4 additions and 3 deletions
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7
src/dev/mem/mmio.h
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@ -563,7 +563,7 @@ INLINE uint8_t ioRead( uint16_t addr ) {
case (uint8_t)io_KBDSTRB:
// TODO: This is very slow!
// printf("io_KBDSTRB\n");
Apple2_64K_RAM[io_KBD] &= 0x7F;
Apple2_64K_RAM[io_KBD] &= ~(1 << 7);
return Apple2_64K_RAM[io_KBDSTRB];
case (uint8_t)io_SPKR:
@ -742,11 +742,12 @@ INLINE uint8_t ioRead( uint16_t addr ) {
case (uint8_t)io_DISK_WRITE + SLOT6:
dbgPrintf2("io_DISK_WRITE (S%u)\n", 6);
return 0;
Apple2_64K_RAM[io_DISK_CLEAR + SLOT6] |= 1 << 7; // mark disk as write protected
return Apple2_64K_RAM[io_DISK_WRITE + SLOT6];
case (uint8_t)io_DISK_CLEAR + SLOT6:
dbgPrintf2("io_DISK_CLEAR (S%u)\n", 6);
return 0;
return Apple2_64K_RAM[io_DISK_CLEAR + SLOT6];
case (uint8_t)io_DISK_SHIFT + SLOT6:
dbgPrintf2("io_DISK_SHIFT (S%u)\n", 6);