MAME SVN History

199869 Revisions

r31197 Saturday 5th July, 2014 at 17:30:20 UTC by Mike Naberezny
(MESS) corvushd: Fixed prep mode verify drive command. [Mike Naberezny] The verify drive command (0x07) is used by the "format check" options of both the Corvus diagnostics program and the SSE HardBox configure program. Previously, format check would halt with an error because we did not return a valid response for the verify drive command. Format check now completes successfully and reports no bad sectors.

r31197 Saturday 5th July, 2014 at 17:30:20 UTC by Mike Naberezny

(MESS) corvushd: Fixed prep mode verify drive command. [Mike Naberezny]
The verify drive command (0x07) is used by the "format check" options
of both the Corvus diagnostics program and the SSE HardBox configure
program. Previously, format check would halt with an error because we
did not return a valid response for the verify drive command. Format
check now completes successfully and reports no bad sectors.

[src/emu/machine]

corvushd.c corvushd.h

trunk/src/emu/machine/corvushd.c
r31196	r31197
1020	1020	m_buffer.drive_param_response.status =
1021	1021	corvus_format_drive(m_buffer.format_drive_revbh_command.pattern, m_offset - 512);
1022	1022	break;
	1023	case PREP_VERIFY:
	1024	m_buffer.verify_drive_response.status = STAT_SUCCESS;
	1025	m_buffer.verify_drive_response.bad_sectors = 0;
	1026	break;
1023	1027	default:
1024	1028	m_xmit_bytes = 1;
1025	1029	m_buffer.single_byte_response.status = STAT_FAULT \| STAT_FATAL_ERR;
r31196	r31197
1241	1245	corvus_prep_cmd[PREP_FILL_DRIVE_OMNI].recv_bytes = 3;
1242	1246	corvus_prep_cmd[PREP_FILL_DRIVE_OMNI].xmit_bytes = 1;
1243	1247	corvus_prep_cmd[PREP_VERIFY].recv_bytes = 1;
1244		corvus_prep_cmd[PREP_VERIFY].xmit_bytes = 0;
	1248	corvus_prep_cmd[PREP_VERIFY].xmit_bytes = 2;
1245	1249	corvus_prep_cmd[PREP_READ_FIRMWARE].recv_bytes = 2;
1246	1250	corvus_prep_cmd[PREP_READ_FIRMWARE].xmit_bytes = 513;
1247	1251	corvus_prep_cmd[PREP_WRITE_FIRMWARE].recv_bytes = 514;

trunk/src/emu/machine/corvushd.h
r31196	r31197
425	425	UINT8 code; // Command Code
426	426	UINT8 pattern[512]; // Pattern to be written
427	427	} format_drive_revbh_command;
	428	//
	429	// Verify Drive command (Prep Mode 0x07)
	430	//
	431	// On the real Corvus controller, this is a variable length response. If the
	432	// number of bad sectors is greater than zero, an additional four bytes will
	433	// follow for each bad sector. We don't emulate bad sectors, so we always
	434	// return a count of 0. That makes this a fixed length response of 2 bytes.
	435	//
	436	struct {
	437	UINT8 status; // Disk access status
	438	UINT8 bad_sectors; // Number of bad sectors (always zero)
	439	} verify_drive_response;
428	440	} m_buffer;
429	441
430	442	// Structure of Block #1, the Disk Parameter Block

199869 Revisions