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(MESS) ti99: Changed logging for HFDC and interleave for MFM. (nw)

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This commit is contained in:
Michael Zapf 2014-09-13 22:56:36 +00:00
parent 1a610ff531
commit 29da7f8748
2 changed files with 10 additions and 7 deletions
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15
src/emu/bus/ti99_peb/hfdc.c
View File

@ -41,7 +41,7 @@
27C128 - EPROM 16K x 8
Author: Michael Zapf
June 2014: Rewritten for modern floppy implementation
September 2014: Rewritten for modern floppy implementation
WORK IN PROGRESS
@ -80,6 +80,7 @@
#define TRACE_LINES 0
#define TRACE_MOTOR 0
#define TRACE_DMA 0
#define TRACE_INT 0
// =========================================================================
@ -543,14 +544,15 @@ WRITE8_MEMBER( myarc_hfdc_device::auxbus_out )
}
else
{
// HD selected
index = slog2((data>>4) & 0x0f);
if (index == -1)
{
if (TRACE_LINES) logerror("%s: Unselect all drives\n", tag());
if (TRACE_LINES) logerror("%s: Unselect all HD drives\n", tag());
connect_floppy_unit(index);
}
else
{
// HD selected
if (TRACE_LINES) logerror("%s: Select hard disk WDS%d\n", tag(), index);
// if (index>=0) m_hdc9234->connect_hard_drive(m_harddisk_unit[index-1]);
}
@ -576,6 +578,7 @@ WRITE8_MEMBER( myarc_hfdc_device::auxbus_out )
// Output the step pulse to the selected floppy drive
if (m_current_floppy != NULL)
{
m_current_floppy->ss_w(data & 0x01);
m_current_floppy->dir_w((data & 0x20)==0);
m_current_floppy->stp_w((data & 0x10)==0);
}
@ -670,7 +673,7 @@ void myarc_hfdc_device::set_floppy_motors_running(bool run)
WRITE_LINE_MEMBER( myarc_hfdc_device::intrq_w )
{
m_irq = (line_state)state;
if (TRACE_LINES) logerror("%s: INT pin from controller = %d, propagating to INTA*\n", tag(), state);
if (TRACE_INT) logerror("%s: INT pin from controller = %d, propagating to INTA*\n", tag(), state);
// Set INTA*
// Signal from SMC is active high, INTA* is active low; board inverts signal
@ -684,7 +687,7 @@ WRITE_LINE_MEMBER( myarc_hfdc_device::intrq_w )
*/
WRITE_LINE_MEMBER( myarc_hfdc_device::dmarq_w )
{
if (TRACE_LINES) logerror("%s: DMARQ pin from controller = %d\n", tag(), state);
if (TRACE_DMA) logerror("%s: DMARQ pin from controller = %d\n", tag(), state);
if (state == ASSERT_LINE)
{
m_hdc9234->dmaack(ASSERT_LINE);
@ -704,7 +707,7 @@ WRITE_LINE_MEMBER( myarc_hfdc_device::dip_w )
*/
READ8_MEMBER( myarc_hfdc_device::read_buffer )
{
logerror("%s: Read access to onboard SRAM at %04x\n", tag(), m_dma_address);
if (TRACE_DMA) logerror("%s: Read access to onboard SRAM at %04x\n", tag(), m_dma_address);
UINT8 value = m_buffer_ram[m_dma_address & 0x7fff];
m_dma_address = (m_dma_address+1) & 0x7fff;
return value;

2
src/lib/formats/ti99_dsk.c
View File

@ -284,7 +284,7 @@ floppy_image_format_t::desc_e* ti99_sdf_format::get_desc_mfm(const format &f, in
{
static floppy_image_format_t::desc_e desc_mfm[] =
{
{ SECTOR_INTERLEAVE_SKEW, 6, 6 }, // Possible ilv: 0, 4, 6, 10, 12, 16.
{ SECTOR_INTERLEAVE_SKEW, 4, 0 }, // Possible ilv: 0, 4, 6, 10, 12, 16.
{ MFM, 0x4e, f.gap_1 }, // track lead-in
{ SECTOR_LOOP_START, 0, 17 }, // 18 sectors
{ CRC_CCITT_START, 1 },