6502/CLK
1
0
Fork 0
mirror of https://github.com/TomHarte/CLK.git synced 2025-01-12 00:30:31 +00:00
Code Issues Projects Releases Wiki Activity

Implement the easy writes.

Browse Source
This commit is contained in:
Thomas Harte 2023-01-16 22:31:03 -05:00
parent 55e73cb812
commit bb6ceafe0e
1 changed files with 19 additions and 14 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

33
Components/RP5C01/RP5C01.cpp
View File

@ -62,6 +62,7 @@ void RP5C01::run_for(HalfCycles cycles) {
while(true) {
int month_length = 1;
switch(month_) {
default:
case 0: month_length = 31; break;
case 1: month_length = 28 + !leap_year_; break;
case 2: month_length = 31; break;
@ -119,7 +120,8 @@ void RP5C01::write(int address, uint8_t value) {
seconds_ = seconds_ - (seconds_ % 10) + (value % 10);
break;
case Reg(0, 0x01):
seconds_ = (seconds_ % 10) + ((value % 6) * 10);
// TODO.
// seconds_ = (seconds_ % 10) + ((value & 7) * 10);
break;
// TODO: minutes.
@ -130,20 +132,20 @@ void RP5C01::write(int address, uint8_t value) {
case Reg(0, 0x04):
case Reg(0, 0x05): break;
// TODO: day-of-the-week counter.
case Reg(0, 0x06): break;
// Day of the week.
case Reg(0, 0x06): day_of_the_week_ = value % 7; break;
// TODO: day counter.
case Reg(0, 0x07):
case Reg(0, 0x08): break;
// Day.
case Reg(0, 0x07): day_ = day_ - (day_ % 10) + value; break;
case Reg(0, 0x08): day_ = (day_ % 10) + ((value & 3) * 10); break;
// TODO: month counter.
case Reg(0, 0x09):
case Reg(0, 0x0a): break;
// Month.
case Reg(0, 0x09): month_ = month_ - (month_ % 10) + value; break;
case Reg(0, 0x0a): month_ = (month_ % 10) + ((value & 1) * 10); break;
// TODO: year counter.
case Reg(0, 0x0b):
case Reg(0, 0x0c): break;
// Year.
case Reg(0, 0x0b): year_ = year_ - (year_ % 10) + value; break;
case Reg(0, 0x0c): year_ = (year_ % 10) + (value * 10); break;
// TODO: alarm minutes.
case Reg(1, 0x02):
@ -160,12 +162,15 @@ void RP5C01::write(int address, uint8_t value) {
case Reg(1, 0x07):
case Reg(1, 0x08): break;
// 24/12-hour clock.
case Reg(1, 0x0a):
twentyfour_hour_clock_ = value & 1;
break;
// TODO: leap-year counter.
case Reg(1, 0x0b): break;
// Lead-year counter.
case Reg(1, 0x0b):
leap_year_ = value & 3;
break;
//
// Registers D–F don't depend on the mode.