diff options
Diffstat (limited to 'trunk/src/emu/cpu/lh5801/lh5801.h')
-rw-r--r-- | trunk/src/emu/cpu/lh5801/lh5801.h | 85 |
1 files changed, 85 insertions, 0 deletions
diff --git a/trunk/src/emu/cpu/lh5801/lh5801.h b/trunk/src/emu/cpu/lh5801/lh5801.h new file mode 100644 index 00000000000..78bc01a68c5 --- /dev/null +++ b/trunk/src/emu/cpu/lh5801/lh5801.h @@ -0,0 +1,85 @@ +/***************************************************************************** + * + * cpustate->h + * portable lh5801 emulator interface + * + * Copyright Peter Trauner, all rights reserved. + * + * - This source code is released as freeware for non-commercial purposes. + * - You are free to use and redistribute this code in modified or + * unmodified form, provided you list me in the credits. + * - If you modify this source code, you must add a notice to each modified + * source file that it has been changed. If you're a nice person, you + * will clearly mark each change too. :) + * - If you wish to use this for commercial purposes, please contact me at + * peter.trauner@jk.uni-linz.ac.at + * - The author of this copywritten work reserves the right to change the + * terms of its usage and license at any time, including retroactively + * - This entire notice must remain in the source code. + * + *****************************************************************************/ +#pragma once + +#ifndef __LH5801_H__ +#define __LH5801_H__ + +/* +lh5801 + +little endian + +ph, pl p +sh, sl s + +xh, xl x +yh, yl y +uh, ul u + +a A + +0 0 0 H V Z IE C + +TM 9bit polynominal? + +pu pv disp flipflops + +bf flipflop (break key connected) + + me0, me1 chip select for 2 64kb memory blocks + +in0-in7 input pins + + mi maskable interrupt input (fff8/9) + timer fffa/b + nmi non .. (fffc/d) + reset fffe/f +e ? + + + +lh5811 chip +pa 8bit io +pb 8bit io +pc 8bit +*/ + + + +typedef UINT8 (*lh5801_in_func)(device_t *device); + +typedef struct _lh5801_cpu_core lh5801_cpu_core; +struct _lh5801_cpu_core +{ + lh5801_in_func in; +}; + +// input lines +enum +{ + LH5801_LINE_MI, //maskable interrupt +}; + +DECLARE_LEGACY_CPU_DEVICE(LH5801, lh5801); +extern CPU_DISASSEMBLE( lh5801 ); + +#endif /* __LH5801_H__ */ |