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Merge pull request #299 from AppleWin/AppleWin-Nick

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Removed old disk stepping code - this closes #133 (Berlios bug #18109)
This commit is contained in:
TomCh 2015-07-06 22:00:04 +01:00
commit fc221a68c8
3 changed files with 1243 additions and 1238 deletions
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2464
source/Disk.cpp
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12
source/Memory.cpp
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@ -24,6 +24,8 @@ Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
/* Description: Memory emulation
*
* Author: Various
*
* In comments, UTA2E is an abbreviation for a reference to "Understanding the Apple //e" by James Sather
*/
#include "StdAfx.h"
@ -342,7 +344,7 @@ static BYTE __stdcall IORead_C06x(WORD pc, WORD addr, BYTE bWrite, BYTE d, ULONG
{
static byte CurrentKestroke = 0;
CurrentKestroke = KeybGetKeycode();
switch (addr & 0xf)
switch (addr & 0x7) // address bit 4 is ignored (UTA2E page 7-5)
{
//In Pravets8A/C if SETMODE (8bit character encoding) is enabled, bit6 in $C060 is 0; Else it is 1
//If (CAPS lOCK of Pravets8A/C is on or Shift is pressed) and (MODE is enabled), bit7 in $C000 is 1; Else it is 0
@ -356,14 +358,6 @@ static BYTE __stdcall IORead_C06x(WORD pc, WORD addr, BYTE bWrite, BYTE d, ULONG
case 0x5: return JoyReadPosition(pc, addr, bWrite, d, nCyclesLeft); //$C065 Analog input 1
case 0x6: return JoyReadPosition(pc, addr, bWrite, d, nCyclesLeft); //$C066 Analog input 2
case 0x7: return JoyReadPosition(pc, addr, bWrite, d, nCyclesLeft); //$C067 Analog input 3
case 0x8: return IO_Null(pc, addr, bWrite, d, nCyclesLeft);
case 0x9: return IO_Null(pc, addr, bWrite, d, nCyclesLeft);
case 0xA: return IO_Null(pc, addr, bWrite, d, nCyclesLeft);
case 0xB: return IO_Null(pc, addr, bWrite, d, nCyclesLeft);
case 0xC: return IO_Null(pc, addr, bWrite, d, nCyclesLeft);
case 0xD: return IO_Null(pc, addr, bWrite, d, nCyclesLeft);
case 0xE: return IO_Null(pc, addr, bWrite, d, nCyclesLeft);
case 0xF: return IO_Null(pc, addr, bWrite, d, nCyclesLeft);
}
return 0;

5
source/Tape.cpp
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@ -24,8 +24,9 @@ Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
/* Description: This module is created for emulation of the 8bit character mode (mode 1) switch,
* which is located in $c060, and so far does not intend to emulate a tape device.
*
*
* Author: Various
*
* In comments, UTA2E is an abbreviation for a reference to "Understanding the Apple //e" by James Sather
*/
#include "StdAfx.h"
@ -76,7 +77,7 @@ BYTE __stdcall TapeRead(WORD, WORD address, BYTE, BYTE, ULONG nCyclesLeft)
return C060;
}
return (1<<7) | (MemReadFloatingBus(nCyclesLeft) & 0x7F); // Keep high-bit fixed (since TAPEIN isn't supported)
return MemReadFloatingBus(1, nCyclesLeft); // TAPEIN has high bit 1 when input is low or not connected (UTA2E page 7-5, 7-6)
}
/*