ethonion10/v86
1
0
Fork 0
Code Issues Pull requests Packages Projects Releases Wiki Activity

whoops

Browse source
This commit is contained in:
copy 2015-01-13 01:52:19 +01:00
parent 6c81fc9a5b
commit 0cec926450
1 changed files with 11 additions and 13 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

24
src/floppy.js
View file

@ -39,6 +39,9 @@ function FloppyController(cpu, fda_image, fdb_image)
this.last_head = 0;
this.last_sector = 1;
// this should actually be write-only ... but people read it anyway
this.dor = 0;
/** @const */
this._state_skip = [
this.io,
@ -126,7 +129,7 @@ FloppyController.prototype.port3F4_read = function()
return_byte |= 0x40 | 0x10;
}
if((dor & 8) === 0)
if((this.dor & 8) === 0)
{
return_byte |= 0x20;
}
@ -235,19 +238,15 @@ FloppyController.prototype.port3F5_write = function(reg_byte)
}
};
// this should actually be write-only ... but people read it anyway
var dor = 0;
FloppyController.prototype.port3F2_read = function()
{
dbg_log("read 3F2: DOR", LOG_DISK);
return dor;
return this.dor;
}
FloppyController.prototype.port3F2_write = function(value)
{
if((value & 4) === 4 && (dor & 4) === 0)
if((value & 4) === 4 && (this.dor & 4) === 0)
{
// reset
this.pic.push_irq(6);
@ -259,8 +258,7 @@ FloppyController.prototype.port3F2_write = function(value)
dbg_log("drive select: " + (value & 3), LOG_DISK);
dbg_log("DOR = " + h(value), LOG_DISK);
dor = value;
this.dor = value;
}
FloppyController.prototype.check_drive_status = function(args)
@ -279,7 +277,7 @@ FloppyController.prototype.seek = function(args)
this.last_cylinder = args[1];
this.last_head = args[0] >> 2 & 1;
if(dor & 8)
if(this.dor & 8)
{
this.pic.push_irq(6);
}
@ -289,7 +287,7 @@ FloppyController.prototype.calibrate = function(args)
{
dbg_log("floppy calibrate", LOG_DISK);
if(dor & 8)
if(this.dor & 8)
{
this.pic.push_irq(6);
}
@ -373,7 +371,7 @@ FloppyController.prototype.done = function(cylinder, args, head, sector, error)
this.response_data[5] = sector;
this.response_data[6] = args[4];
if(dor & 8)
if(this.dor & 8)
{
this.pic.push_irq(6);
}
@ -399,7 +397,7 @@ FloppyController.prototype.read_sector_id = function(args)
this.response_data[5] = 0;
this.response_data[6] = 0;
if(dor & 8)
if(this.dor & 8)
{
this.pic.push_irq(6);
}