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Fix read so that trigger paddles 555 timers reset (before was just )

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This commit is contained in:
tomcw 2019-04-06 11:26:33 +01:00
parent 7096a0a05a
commit 7c95c0f6c4
1 changed files with 5 additions and 2 deletions
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7
source/Memory.cpp
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@ -552,9 +552,12 @@ static BYTE __stdcall IOWrite_C06x(WORD pc, WORD addr, BYTE bWrite, BYTE d, ULON
static BYTE __stdcall IORead_C07x(WORD pc, WORD addr, BYTE bWrite, BYTE d, ULONG nExecutedCycles)
{
// Apple//e TRM, pg-258: "Reading or writing any address in the range $C070-$C07F also triggers the paddle time and resets the VBLINT(*)." (*) //c only!
JoyResetPosition(pc, addr, bWrite, d, nExecutedCycles); //$C07X Analog input reset
switch (addr & 0xf)
{
case 0x0: return JoyResetPosition(pc, addr, bWrite, d, nExecutedCycles); //$C070 Analog input reset
case 0x0: break;
case 0x1: return IO_Null(pc, addr, bWrite, d, nExecutedCycles);
case 0x2: return IO_Null(pc, addr, bWrite, d, nExecutedCycles);
case 0x3: return IO_Null(pc, addr, bWrite, d, nExecutedCycles);
@ -580,7 +583,7 @@ static BYTE __stdcall IORead_C07x(WORD pc, WORD addr, BYTE bWrite, BYTE d, ULONG
static BYTE __stdcall IOWrite_C07x(WORD pc, WORD addr, BYTE bWrite, BYTE d, ULONG nExecutedCycles)
{
// Apple//e TRM, pg-258: "Reading or writing any address in the range $C070-$C07F also triggers the paddle time and resets the VBLINT(*)." (*) //c only!
JoyResetPosition(pc, addr, bWrite, d, nExecutedCycles);
JoyResetPosition(pc, addr, bWrite, d, nExecutedCycles); //$C07X Analog input reset
switch (addr & 0xf)
{