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[/] [thor/] [trunk/] [software/] [emuThor/] [source/] [clsUart.cpp] - Blame information for rev 46

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#include "stdafx.h"
#include "clsUart.h"
 
void clsUart::Reset()
{
        ls = 0x60;
}
bool clsUart::IsSelected(unsigned int ad)
{
        return (ad & 0xFFFFFFF0LL)==0xFFDC0A00;
}
 
unsigned int clsUart::Read(unsigned int ad)
{
        if (IsSelected(ad)) {
                switch(ad & 0xF) {
                case 0:          ls &= 0xFE; return rb;
                case 1:         return ls;
                case 2:         return ms;
                case 3:         return is;
                default:        return 0x00;
                }
        }
        else
                return 0;
}
 
int clsUart::Write(unsigned int ad, unsigned int dat, unsigned int mask)
{
        if (IsSelected(ad)) {
                switch(ad & 0xF) {
                case 0:          tb = dat; ls &= 0x9F; break;
                case 4:         ier = dat; break;
                case 6:         mc = dat; break;
                case 7:         ctrl = dat; break;
                case 9:         cm1 = dat; break;
                case 10:        cm2 = dat; break;
                case 11:        cm3 = dat; break;
                case 12:        fc = dat; break;
                }
        }
        return 0;
}
 
int clsUart::TxPort()
{
        int d;
 
        if ((ls & 0x60)==0x60)
                d = 0xff;
        else
                d = tb;
        ls |= 0x60;
        if (ier & 2) {
                irq = true;
                system1.pic1.irqUart = true;
        }
        return d;
}
 
void clsUart::RxPort(unsigned int dat)
{
        if (ls & 1)
                ls |= 2;
        ls |= 1;
        if (ier & 1) {
                irq = true;
                system1.pic1.irqUart = true;
        }
}

Line No.	Rev	Author	Line
1	32	robfinch	`#include "stdafx.h"`
2			`#include "clsUart.h"`
3
4			`void clsUart::Reset()`
5			`{`
6			`ls = 0x60;`
7			`}`
8			`bool clsUart::IsSelected(unsigned int ad)`
9			`{`
10	35	robfinch	`return (ad & 0xFFFFFFF0LL)==0xFFDC0A00;`
11	32	robfinch	`}`
12
13			`unsigned int clsUart::Read(unsigned int ad)`
14			`{`
15			`if (IsSelected(ad)) {`
16			`switch(ad & 0xF) {`
17			`case 0: ls &= 0xFE; return rb;`
18			`case 1: return ls;`
19			`case 2: return ms;`
20			`case 3: return is;`
21			`default: return 0x00;`
22			`}`
23			`}`
24			`else`
25			`return 0;`
26			`}`
27
28			`int clsUart::Write(unsigned int ad, unsigned int dat, unsigned int mask)`
29			`{`
30			`if (IsSelected(ad)) {`
31			`switch(ad & 0xF) {`
32			`case 0: tb = dat; ls &= 0x9F; break;`
33			`case 4: ier = dat; break;`
34			`case 6: mc = dat; break;`
35			`case 7: ctrl = dat; break;`
36			`case 9: cm1 = dat; break;`
37			`case 10: cm2 = dat; break;`
38			`case 11: cm3 = dat; break;`
39			`case 12: fc = dat; break;`
40			`}`
41			`}`
42			`return 0;`
43			`}`
44
45			`int clsUart::TxPort()`
46			`{`
47			`int d;`
48
49			`if ((ls & 0x60)==0x60)`
50			`d = 0xff;`
51			`else`
52			`d = tb;`
53			`ls \|= 0x60;`
54			`if (ier & 2) {`
55			`irq = true;`
56			`system1.pic1.irqUart = true;`
57			`}`
58			`return d;`
59			`}`
60
61			`void clsUart::RxPort(unsigned int dat)`
62			`{`
63			`if (ls & 1)`
64			`ls \|= 2;`
65			`ls \|= 1;`
66			`if (ier & 1) {`
67			`irq = true;`
68			`system1.pic1.irqUart = true;`
69			`}`
70			`}`

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[/] [thor/] [trunk/] [software/] [emuThor/] [source/] [clsUart.cpp] - Blame information for rev 46