blob: 3e2d840f1d4f7a4ad4eba6bad6cb5aaccd7e7ce5 (
plain) (
blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
|
/*****************************************************************************
*
* Xerox AltoII cursor task (CURT)
*
* Copyright Juergen Buchmueller <pullmoll@t-online.de>
*
* Licenses: MAME, GPLv2
*
*****************************************************************************/
#ifdef ALTO2_DEFINE_CONSTANTS
#else // ALTO2_DEFINE_CONSTANTS
#ifndef _A2CURT_H_
#define _A2CURT_H_
//! F2 functions for cursor task
enum {
f2_curt_load_xpreg = f2_task_10, //!< f2 10: load x position register
f2_curt_load_csr = f2_task_11, //!< f2 11: load cursor shift register
};
void f1_early_curt_block(); //!< f1_curt_block early: disable the cursor task and set the curt_blocks flag
void f2_late_load_xpreg(); //!< f2_load_xpreg late: load the x position register from BUS[6-15]
void f2_late_load_csr(); //!< f2_load_csr late: load the cursor shift register from BUS[0-15]
void activate_curt(); //!< curt_activate: called by the CPU when the cursor task becomes active
void init_curt(int task = task_curt); //!< initialize cursor task
void exit_curt(); //!< deinitialize cursor task
void reset_curt(); //!< reset cursor task
#endif // _A2CURT_H_
#endif // ALTO2_DEFINE_CONSTANTS
|