folkert/KEK
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity Actions 1

system size field

Browse source
This commit is contained in:
folkert van heusden 2022-03-26 09:48:41 +01:00
parent 7970bcebe1
commit 53ee8675eb
1 changed files with 2 additions and 2 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

4
bus.cpp
View file

@ -16,7 +16,7 @@
// see also https://github.com/espressif/esp-idf/issues/1934
constexpr int n_pages = 12;
#else
constexpr int n_pages = 512;
constexpr int n_pages = 16;
#endif
bus::bus()
@ -283,7 +283,7 @@ uint16_t bus::read(const uint16_t a, const bool word_mode, const bool use_prev)
return word_mode ? tty_ -> readByte(a) : tty_ -> readWord(a);
// LO size register field must be all 1s, so subtract 1
constexpr const uint32_t system_size = n_pages * 8192 - 4096 - 1;
const uint32_t system_size = n_pages * 8192 / 64 - 1;
if (a == 0177762) // system size HI
return system_size >> 16;