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-rw-r--r--src/emu/video/resnet.h201
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diff --git a/src/emu/video/resnet.h b/src/emu/video/resnet.h
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+/*****************************************************************************
+
+ resnet.h
+
+ Compute weights for resistors networks.
+
+ Copyright (c) 1996-2007, Nicola Salmoria and the MAME Team.
+ Visit http://mamedev.org for licensing and usage restrictions.
+
+*****************************************************************************/
+
+#pragma once
+
+#ifndef _RESNET_H_
+#define _RESNET_H_
+
+/**********************************************************************
+ * Rbias
+ * Vbias >-ZZZ-. .-----------------------------------------> Out0
+ * | | Vcc
+ * R0 | | |
+ * In0 >-ZZZ-+----+ Vcc Z
+ * | | | Z
+ * R1 | | / Z
+ * In1 >-ZZZ-+ +----+----ZZZ--| NPN +------------> Out1
+ * : | > <
+ * : | +----+----| PNP
+ * R8 | | Z | \
+ * In8 >-ZZZ-+ | Z | |
+ * | | Z | Gnd
+ * Z | | '-------------------> Out2
+ * Z Rgnd | Gnd
+ * Z | |-----------------------|
+ * | `---| max(vmin,min(sig-vcut)|--------> Out3
+ * Gnd |-----------------------|
+ *
+ *********************************************************************/
+
+/* Amplifier stage per channel but may be specified globally as default */
+
+#define RES_NET_AMP_USE_GLOBAL 0x0000
+#define RES_NET_AMP_NONE 0x0001 //Out0
+#define RES_NET_AMP_DARLINGTON 0x0002 //Out1
+#define RES_NET_AMP_EMITTER 0x0003 //Out2
+#define RES_NET_AMP_CUSTOM 0x0004 //Out3
+#define RES_NET_AMP_MASK 0x0007
+
+/* VCC prebuilds - Global */
+
+#define RES_NET_VCC_5V 0x0000
+#define RES_NET_VCC_CUSTOM 0x0008
+#define RES_NET_VCC_MASK 0x0008
+
+/* VBias prebuils - per channel but may be specified globally as default */
+
+#define RES_NET_VBIAS_USE_GLOBAL 0x0000
+#define RES_NET_VBIAS_5V 0x0010
+#define RES_NET_VBIAS_TTL 0x0020
+#define RES_NET_VBIAS_CUSTOM 0x0030
+#define RES_NET_VBIAS_MASK 0x0030
+
+/* Input Voltage levels - Global */
+
+#define RES_NET_VIN_OPEN_COL 0x0000
+#define RES_NET_VIN_VCC 0x0100
+#define RES_NET_VIN_TTL_OUT 0x0200
+#define RES_NET_VIN_CUSTOM 0x0300
+#define RES_NET_VIN_MASK 0x0300
+
+/* Monitor options */
+
+// Just invert the signal
+#define RES_NET_MONITOR_INVERT 0x1000
+// SANYO_EZV20 / Nintendo with inverter circuit
+#define RES_NET_MONITOR_SANYO_EZV20 0x2000
+// Electrohome G07 Series
+// 5.6k input impedance
+#define RES_NET_MONITOR_ELECTROHOME_G07 0x3000
+
+#define RES_NET_MONITOR_MASK 0x3000
+
+/* General defines */
+
+#define RES_NET_CHAN_RED 0x00
+#define RES_NET_CHAN_GREEN 0x01
+#define RES_NET_CHAN_BLUE 0x02
+
+/* Some aliases */
+
+#define RES_NET_VIN_MB7052 RES_NET_VIN_TTL_OUT
+#define RES_NET_VIN_MB7053 RES_NET_VIN_TTL_OUT
+#define RES_NET_VIN_28S42 RES_NET_VIN_TTL_OUT
+
+/* Structures */
+
+typedef struct _res_net_channel_info res_net_channel_info;
+struct _res_net_channel_info {
+ // per channel options
+ UINT32 options;
+ // Pullup resistor value in Ohms
+ double rBias;
+ // Pulldown resistor value in Ohms
+ double rGnd;
+ // Number of inputs connected to resistors
+ int num;
+ // Resistor values
+ // - Least significant bit first
+ double R[8];
+ // Minimum output voltage
+ // - Applicable if output is routed through a complimentary
+ // - darlington circuit
+ // - typical value ~ 0.9V
+ double minout;
+ // Cutoff output voltage
+ // - Applicable if output is routed through 1:1 transistor amplifier
+ // - Typical value ~ 0.7V
+ double cut;
+ // Voltage at the pullup resistor
+ // - Typical voltage ~5V
+ double vBias;
+};
+
+typedef struct _res_net_info res_net_info;
+struct _res_net_info {
+ // global options
+ UINT32 options;
+ // The three color channels
+ res_net_channel_info rgb[3];
+ // Supply Voltage
+ // - Typical value 5V
+ double vcc;
+ // High Level output voltage
+ // - TTL : 3.40V
+ // - CMOS: 4.95V (@5v vcc)
+ double vOL;
+ // Low Level output voltage
+ // - TTL : 0.35V
+ // - CMOS: 0.05V (@5v vcc)
+ double vOH;
+ // Open Collector flag
+ UINT8 OpenCol;
+};
+
+#define RES_NET_MAX_COMP 3
+
+typedef struct _res_net_decode_info res_net_decode_info;
+struct _res_net_decode_info {
+ int numcomp;
+ int start;
+ int end;
+ UINT16 offset[3 * RES_NET_MAX_COMP];
+ INT16 shift[3 * RES_NET_MAX_COMP];
+ UINT16 mask[3 * RES_NET_MAX_COMP];
+};
+
+/* return a single value for one channel */
+
+int compute_res_net(int inputs, int channel, const res_net_info *di);
+
+/* compute all values */
+
+rgb_t *compute_res_net_all(const UINT8 *prom, const res_net_decode_info *rdi, const res_net_info *di);
+
+
+/* legacy interface */
+
+double compute_resistor_weights(
+ int minval, int maxval, double scaler,
+ int count_1, const int * resistances_1, double * weights_1, int pulldown_1, int pullup_1,
+ int count_2, const int * resistances_2, double * weights_2, int pulldown_2, int pullup_2,
+ int count_3, const int * resistances_3, double * weights_3, int pulldown_3, int pullup_3 );
+
+#define combine_8_weights(tab,w0,w1,w2,w3,w4,w5,w6,w7) ((int)(((tab)[0]*(w0) + (tab)[1]*(w1) + (tab)[2]*(w2) + (tab)[3]*(w3) + (tab)[4]*(w4) + (tab)[5]*(w5) + (tab)[6]*(w6) + (tab)[7]*(w7)) + 0.5))
+#define combine_7_weights(tab,w0,w1,w2,w3,w4,w5,w6) ((int)(((tab)[0]*(w0) + (tab)[1]*(w1) + (tab)[2]*(w2) + (tab)[3]*(w3) + (tab)[4]*(w4) + (tab)[5]*(w5) + (tab)[6]*(w6)) + 0.5))
+#define combine_6_weights(tab,w0,w1,w2,w3,w4,w5) ((int)(((tab)[0]*(w0) + (tab)[1]*(w1) + (tab)[2]*(w2) + (tab)[3]*(w3) + (tab)[4]*(w4) + (tab)[5]*(w5)) + 0.5))
+#define combine_5_weights(tab,w0,w1,w2,w3,w4) ((int)(((tab)[0]*(w0) + (tab)[1]*(w1) + (tab)[2]*(w2) + (tab)[3]*(w3) + (tab)[4]*(w4)) + 0.5))
+#define combine_4_weights(tab,w0,w1,w2,w3) ((int)(((tab)[0]*(w0) + (tab)[1]*(w1) + (tab)[2]*(w2) + (tab)[3]*(w3)) + 0.5))
+#define combine_3_weights(tab,w0,w1,w2) ((int)(((tab)[0]*(w0) + (tab)[1]*(w1) + (tab)[2]*(w2)) + 0.5))
+#define combine_2_weights(tab,w0,w1) ((int)(((tab)[0]*(w0) + (tab)[1]*(w1)) + 0.5))
+
+
+
+/* this should be moved to one of the core files */
+
+#define MAX_NETS 3
+#define MAX_RES_PER_NET 18
+
+
+
+
+/* for the open collector outputs PROMs */
+
+double compute_resistor_net_outputs(
+ int minval, int maxval, double scaler,
+ int count_1, const int * resistances_1, double * outputs_1, int pulldown_1, int pullup_1,
+ int count_2, const int * resistances_2, double * outputs_2, int pulldown_2, int pullup_2,
+ int count_3, const int * resistances_3, double * outputs_3, int pulldown_3, int pullup_3 );
+
+
+
+#endif /*_RESNET_H_*/