IN:
BHL = pointer to the byte to read (B = 0, local byte)
OUT, if call successful:
A = byte at address
Registers changed after return:
.FBCDEHL/IXIY same
A......./.... different |
GN_Cme, compare null-terminated strings, one local, one extended
GN_Wbe, write byte at extended address
OS_Bde, copy bytes to extended address
OS_Bhl, copy bytes from extended address