unsigned int le_lumi(void)
{
static unsigned char flag = 0;
static unsigned int tmp = 0;
unsigned int ret = 0;
if (hab_sensor == 1) {
if (!bit_tst(ADCON0, 1) && !flag) {
ADCON0 = 0b00000101;
delay();
bit_set(ADCON0, 1);
flag = 1;
}
if (!bit_tst(ADCON0, 1) && flag) {
tmp = ADRESH;
tmp <<= 8;
tmp += ADRESL;
flag = 0;
hab_sensor = 0;
}
ret = 100*(tmp - MIN_LUMI) / (MAX_LUMI - MIN_LUMI);
}
return ret;
}
unsigned int le_temp()
{
static unsigned char flag = 0;
static unsigned int ret = 0;
if (!hab_sensor) {
/* selecionar canal AN0 */
if (!bit_tst(ADCON0, 1) && !flag) {
ADCON0 = 0b00000001;
delay();
bit_set(ADCON0, 1);
flag = 1;
}
/* fim da conversão */
if (!bit_tst(ADCON0, 1) && flag) {
ret = ADRESH;
ret <<= 8;
ret += ADRESL;
flag = 0;
hab_sensor = 1;
}
}
return (ret / 16);
}
void io_put_byte(uint32_t addr, uint8_t arg)
{
addr &= 31; //tihw.io_size-1;
switch(addr)
{
case 0x00: // rw <76...2..>
// %5: bit 0 of contrast (TI92)
if(tihw.calc_type == TI92)
bit_chg(tihw.contrast,0,bit_get(arg,5));
break;
case 0x01: // rw <.....2.0>
// %0 clr: interleave RAM (allows use of 256K of RAM)
if(tihw.hw_type == 1)
tihw.ram_size = bit_tst(arg, 0) ? 128*KB : 256*KB;
// %2 set: protected memory violation triggered when memory below [$000120] is written
break;
case 0x02: // ??
break;
case 0x03: // -w <.654.210>
// Bus waitstates
break;
case 0x04:
break;
case 0x05: // -w <...43210>
// turn off OSC1 (CPU), wake on int level 6 (ON key) and int level [5..1]
m68k_setstopped(1);
break;
case 0x06:
case 0x07:
case 0x08:
case 0x09:
case 0x0a:
case 0x0b:
break;
case 0x0c: // rw <765.3210>
// %[3:0]: Trigger interrupt level 4 on error, activity, tx empty, rx full
// see hardware.c
// %6: link disable (usually reset link port or direct access to wires)
if(bit_get(arg, 6))
hw_dbus_reset();
break;
case 0x0d: // r- <76543210>
break;
case 0x0e: // rw <....3210>
// set red/white wires (if direct access)
if(io_bit_tst(0x0c,6))
{
lc.set_red_wire(!bit_get(arg,0));
lc.set_white_wire(!bit_get(arg,1));
}
break;
case 0x0f: // rw <76543210>
// write a byte to the transmit buffer (1 byte buffer)
io_bit_clr(0x0d, 0); // STX=0 (tx reg is full)
hw_dbus_putbyte(arg);
break;
case 0x10: // -w <76543210> (hw1)
// address of LCD memory divided by 8 (msb)
if(tihw.hw_type == HW1)
tihw.lcd_adr = ((arg << 8) | tihw.io[0x11]) << 3;
break;
case 0x11: // -w <76543210> (hw1)
// address of LCD memory divided by 8 (lsb)
if(tihw.hw_type == HW1)
tihw.lcd_adr = ((tihw.io[0x10] << 8) | arg) << 3;
break;
case 0x12: // -w <76543210>
// LCD logical width = (64-n)*2 bytes = (64-n)*16 pixels <=> n = 64-w/16
tihw.log_w = (64 - arg) * 16;
break;
case 0x13: // -w <..543210>
// LCD logical height = (256-n) <=> n = 256-h
tihw.log_h = 0x100 - arg;
break;
case 0x14:
break;
case 0x15: // rw <7.6543210>
// %7 set: Master disable timer interrupts (level 1, 3 and 5)
// see hardware.c
// %[5-4]: Increment rate of $600017 (prescaler)
set_prescaler((arg >> 4) & 3);
// %3 set: Enable incrementing of $600017
// see hardware.c
// %2 set: Trigger interrupt level 3 at OSC2/2^19 (~1 Hz on HW2)
// see hardware.c
// %1 set: OSC2 (and OSC3?) enable (bit clear means oscillator stopped!)
// see hardware.c
// %0 set: LCD controller DMA enable else LCD blank ("white")
// could be implemented but redundant with tihw.on_off
break;
case 0x16:
break;
case 0x17: // rw <76543210>
// programmable rate generator
break;
case 0x18: // rw <......10>
// keyboard row mask (see keyboard.c)
break;
case 0x19: // rw <76543210>
// keyboard row mask (see keyboard.c)
break;
case 0x1a: // r- <......10>
// ON key status (see keyboard.c)
// Write any value to $60001A to acknowledge this interrupt (AutoInt6)
break;
case 0x1b: // r- <76543210>
// keyboard column status (see keyboard.c)
// Write any value to $60001B to acknowledge this interrupt (AutoInt2)
break;
case 0x1c: // -w <..5432..>
// %[5-2] set: LCD RS (row sync) frequency, OSC2/((16-n)*8)
// %1111 turns off the RS completely (used when LCD is off)
tihw.on_off = ((arg & 0x3c) == 0x3c) ? 0 : 1;
break;
case 0x1d: // -w <7..43210>
// %[3-0]: contrast
if(tihw.calc_type == TI92)
{
// %[3-0]: bits <4321.> of contrast
static int avg = 0;
avg = (avg + arg)/2; // filter value
tihw.contrast = (tihw.contrast & 1) | ((avg & 15) << 1);
}
else
{
// %[4/3-0]: LCD contrast bits 4/3-0 (bit 4/3 is msb on HW2/HW1)
tihw.contrast = arg & (io2_bit_tst(0x1f,0) ? 0x1f : 0x0f);
if(tihw.calc_type == TI89 || tihw.calc_type == TI89t)
{
if(tihw.hw_type == HW1)
tihw.contrast = 31 - 2*tihw.contrast;
else
tihw.contrast = 31 - tihw.contrast;
}
}
break;
case 0x1e:
break;
case 0x1f:
break;
}
tihw.io[addr] = arg;
}
void io2_put_byte(uint32_t addr, uint8_t arg)
{
int i;
addr &= 63; //tihw.io2_size-1;
switch(addr)
{
case 0x00: // rw <76543210>
case 0x08:
if(tihw.protect)
return;
for(i = 0; i < 8; i++) // this is the fastest method (an easier method will use 64 bit integer)
tihw.ram_exec[8+i] = arg & (1 << i);
case 0x01: // rw <76543210>
case 0x09:
if(tihw.protect)
return;
for(i = 0; i < 8; i++)
tihw.ram_exec[0+i] = arg & (1 << i);
case 0x02: // rw <76543210>
case 0x0a:
if(tihw.protect)
return;
for(i = 0; i < 8; i++)
tihw.ram_exec[24+i] = arg & (1 << i);
case 0x03: // rw <76543210>
case 0x0b:
if(tihw.protect)
return;
for(i = 0; i < 8; i++)
tihw.ram_exec[16+i] = arg & (1 << i);
case 0x04: // rw <76543210>
case 0x0c:
if(tihw.protect)
return;
for(i = 0; i < 8; i++)
tihw.ram_exec[40+i] = arg & (1 << i);
case 0x05: // rw <76543210>
case 0x0d:
if(tihw.protect)
return;
for(i = 0; i < 8; i++)
tihw.ram_exec[32+i] = arg & (1 << i);
case 0x06: // rw <76543210>
case 0x0e:
if(tihw.protect)
return;
for(i = 0; i < 8; i++)
tihw.ram_exec[56+i] = arg & (1 << i);
case 0x07: // rw <76543210>
case 0x0f:
if(tihw.protect)
return;
for(i = 0; i < 8; i++)
tihw.ram_exec[48+i] = arg & (1 << i);
case 0x11: // -w <76543210>
break;
case 0x12: // rw <..543210>
if(tihw.protect)
return;
arg &= 0x3f;
break;
case 0x13:
break;
case 0x14: // rw <76543210>
// RTC, incremented every 2^13 seconds. The whole word must be read:
// reading the port byte by byte can return wrong value
tihw.rtc_value = (tihw.io2[0x14] << 8) | tihw.io2[0x15];
break;
case 0x15: // rw <76543210>
tihw.rtc_value = (tihw.io2[0x14] << 8) | tihw.io2[0x15];
break;
case 0x17: // rw <......10>
// Display memory snoop range
tihw.lcd_adr = 0x4c00 + 0x1000*(arg&3);
break;
case 0x1d: // rw <7...3210>
// %1: Screen enable (clear this bit to shut down LCD)
tihw.on_off = bit_tst(arg,1) ? 1 : 0;
break;
case 0x1f: // rw <.....210>
if(!tihw.protect) tihw.io2[addr] = arg; else return;
// %0 set: use 5 contrast bits (default for AMS).
// %[2:1]
// %2 set: activates the incrementation of $700014.w
break;
}
tihw.io2[addr] = arg;
}