charset=UTF-8 Last-Modified: Mon, 05 May 2025 05:45:35 GMT Expires: Thu, 03 May 2035 05:45:35 GMT spi_layer_bank_w unknown bit wasn't alpha blending enable afterall - mame - MAME - Multiple Arcade Machine Emulator
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author Michaël Banaan Ananas <happppp@users.noreply.github.com>2014-09-30 15:33:22 +0000
committer Michaël Banaan Ananas <happppp@users.noreply.github.com>2014-09-30 15:33:22 +0000
commitc7d4794dac1079bf27c9acf01470627beb876ebe (patch)
tree923090ed15b19f2753672b7d6dc6c9895c6bf69a /src/mame/includes/seibuspi.h
parent54c3e62516bcdbc7b6e0117fbf802f10dcaa385a (diff)
spi_layer_bank_w unknown bit wasn't alpha blending enable afterall
Diffstat (limited to 'src/mame/includes/seibuspi.h')
-rw-r--r--src/mame/includes/seibuspi.h2
1 files changed, 1 insertions, 1 deletions
diff --git a/src/mame/includes/seibuspi.h b/src/mame/includes/seibuspi.h
index b192e74c41f..8e084dd59e6 100644
--- a/src/mame/includes/seibuspi.h
+++ b/src/mame/includes/seibuspi.h
@@ -58,7 +58,6 @@ public:
UINT32 m_layer_enable;
UINT32 m_layer_bank;
UINT8 m_rf2_layer_bank;
- int m_alpha_enable;
int m_rowscroll_enable;
int m_midl_layer_offset;
int m_fore_layer_offset;
@@ -131,6 +130,7 @@ public:
virtual void video_start();
DECLARE_MACHINE_RESET(spi);
DECLARE_MACHINE_RESET(sxx2e);
+ DECLARE_VIDEO_START(ejanhs);
DECLARE_VIDEO_START(sys386f);
TILE_GET_INFO_MEMBER(get_text_tile_info);
TILE_GET_INFO_MEMBER(get_back_tile_info);
a id='n146' href='#n146'>146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 383 384 385 386 387 388 389 390 391 392 393 394 395 396 397 398 399 400 401 402 403 404 405 406 407 408
// license:GPL-2.0+
// copyright-holders:Couriersud

#include "pfunction.h"
#include "pexception.h"
#include "pfmtlog.h"
#include "pmath.h"
#include "pstonum.h"
#include "pstrutil.h"
#include "putil.h"

#include <array>
#include <map>
#include <stack>
#include <type_traits>
#include <utility>
#include <map>

namespace plib {

	static constexpr const std::size_t MAX_STACK = 32;

	struct pcmd_t
	{
		rpn_cmd cmd;
		int adj;
		int prio;
	};

	static const std::map<pstring, pcmd_t> &pcmds()
	{
		static const std::map<pstring, pcmd_t> lpcmds =
		{
			{ "^",     { POW,   1, 30 } },
			{ "neg",   { NEG,   0, 25 } },
			{ "+",     { ADD,   1, 10 } },
			{ "-",     { SUB,   1, 10 } },
			{ "*",     { MULT,  1, 20 } },
			{ "/",     { DIV,   1, 20 } },
			{ "<",     { LT,    1,  9 } },
			{ ">",     { GT,    1,  9 } },
			{ "<=",    { LE,    1,  9 } },
			{ ">=",    { GE,    1,  9 } },
			{ "==",    { EQ,    1,  8 } },
			{ "!=",    { NE,    1,  8 } },
			{ "if",    { IF,    2,  0 } },
			{ "pow",   { POW,   1,  0 } },
			{ "log",   { LOG,   0,  0 } },
			{ "sin",   { SIN,   0,  0 } },
			{ "cos",   { COS,   0,  0 } },
			{ "max",   { MAX,   1,  0 } },
			{ "min",   { MIN,   1,  0 } },
			{ "trunc", { TRUNC, 0,  0 } },
			{ "rand",  { RAND, -1,  0 } },

			{ "(",     { LP,    0,  1 } },
			{ ")",     { RP,    0,  1 } },
		};
		return lpcmds;
	}
	// FIXME: Exa parsing conflicts with e,E parsing
	template<typename F>
	static const std::map<pstring, F> &units_si()
	{
		static std::map<pstring, F> units_si_stat =
		{
			//{ "Y", narrow_cast<F>(1e24) }, // NOLINT: Yotta
			//{ "Z", narrow_cast<F>(1e21) }, // NOLINT: Zetta
			//{ "E", narrow_cast<F>(1e18) }, // NOLINT: Exa
			{ "P", narrow_cast<F>(1e15) }, // NOLINT: Peta
			{ "T", narrow_cast<F>(1e12) }, // NOLINT: Tera
			{ "G", narrow_cast<F>( 1e9) }, // NOLINT: Giga
			{ "M", narrow_cast<F>( 1e6) }, // NOLINT: Mega
			{ "k", narrow_cast<F>( 1e3) }, // NOLINT: Kilo
			{ "h", narrow_cast<F>( 1e2) }, // NOLINT: Hekto
			//{ "da", narrow_cast<F>(1e1) }, // NOLINT: Deka
			{ "d", narrow_cast<F>(1e-1) }, // NOLINT: Dezi
			{ "c", narrow_cast<F>(1e-2) }, // NOLINT: Zenti
			{ "m", narrow_cast<F>(1e-3) }, // NOLINT: Milli
			{ "μ", narrow_cast<F>(1e-6) }, // NOLINT: Mikro
			{ "n", narrow_cast<F>(1e-9) }, // NOLINT: Nano
			{ "p", narrow_cast<F>(1e-12) }, // NOLINT: Piko
			{ "f", narrow_cast<F>(1e-15) }, // NOLINT: Femto
			{ "a", narrow_cast<F>(1e-18) }, // NOLINT: Atto
			{ "z", narrow_cast<F>(1e-21) }, // NOLINT: Zepto
			{ "y", narrow_cast<F>(1e-24) }, // NOLINT: Yokto
		};
		return units_si_stat;
	}


	template <typename NT>
	void pfunction<NT>::compile(const pstring &expr, const inputs_container &inputs) noexcept(false)
	{
		if (plib::startsWith(expr, "rpn:"))
			compile_postfix(expr.substr(4), inputs);
		else
			compile_infix(expr, inputs);
	}

	template <typename NT>
	void pfunction<NT>::compile_postfix(const pstring &expr, const inputs_container &inputs) noexcept(false)
	{
		std::vector<pstring> cmds(plib::psplit(expr, " "));
		compile_postfix(inputs, cmds, expr);
	}

	template <typename NT>
	void pfunction<NT>::compile_postfix(const inputs_container &inputs,
			const std::vector<pstring> &cmds, const pstring &expr) noexcept(false)
	{
		m_precompiled.clear();
		int stk = 0;

		for (const pstring &cmd : cmds)
		{
			rpn_inst rc;
			auto p = pcmds().find(cmd);
			if (p != pcmds().end())
			{
				rc.m_cmd = p->second.cmd;
				stk -= p->second.adj;
			}
			else
			{
				for (std::size_t i = 0; i < inputs.size(); i++)
				{
					if (inputs[i] == cmd)
					{
						rc.m_cmd = PUSH_INPUT;
						rc.m_param.index = i;
						stk += 1;
						break;
					}
				}
				if (rc.m_cmd != PUSH_INPUT)
				{
					using fl_t = decltype(rc.m_param.val);
					rc.m_cmd = PUSH_CONST;
					bool err(false);
					auto rs(plib::right(cmd,1));
					auto r=units_si<fl_t>().find(rs);
					if (r == units_si<fl_t>().end())
						rc.m_param.val = plib::pstonum_ne<fl_t>(cmd, err);
					else
						rc.m_param.val = plib::pstonum_ne<fl_t>(plib::left(cmd, cmd.size()-1), err) * r->second;
					if (err)
						throw pexception(plib::pfmt("pfunction: unknown/misformatted token <{1}> in <{2}>")(cmd)(expr));
					stk += 1;
				}
			}
			if (stk < 1)
				throw pexception(plib::pfmt("pfunction: stack underflow on token <{1}> in <{2}>")(cmd)(expr));
			if (stk >= narrow_cast<int>(MAX_STACK))
				throw pexception(plib::pfmt("pfunction: stack overflow on token <{1}> in <{2}>")(cmd)(expr));
			m_precompiled.push_back(rc);
		}
		if (stk != 1)
			throw pexception(plib::pfmt("pfunction: stack count {1} different to one on <{2}>")(stk, expr));
	}

	static bool is_number(const pstring &n)
	{
		if (n.empty())
			return false;
		const auto l = n.substr(0,1);
		return (l >= "0" && l <= "9");
	}

	static bool is_id(const pstring &n)
	{
		if (n.empty())
			return false;
		const auto l = n.substr(0,1);
		return ((l >= "a" && l <= "z") || (l >= "A" && l <= "Z"));
	}

	static int get_prio(const pstring &v)
	{
		auto p = pcmds().find(v);
		if (p != pcmds().end())
			return p->second.prio;
		if (plib::left(v, 1) >= "a" && plib::left(v, 1) <= "z")
			return 0;
		return -1;
	}

	static pstring pop_check(std::stack<pstring> &stk, const pstring &expr) noexcept(false)
	{
		if (stk.empty())
			throw pexception(plib::pfmt("pfunction: stack underflow during infix parsing of: <{1}>")(expr));
		pstring res = stk.top();
		stk.pop();
		return res;
	}

	template <typename NT>
	void pfunction<NT>::compile_infix(const pstring &expr, const inputs_container &inputs)
	{
		// Shunting-yard infix parsing
		std::vector<pstring> sep = {"(", ")", ",", "*", "/", "+", "-", "^", "<=", ">=", "==", "!=", "<", ">"};
		std::vector<pstring> sexpr2(plib::psplit(plib::replace_all(expr, " ", ""), sep));
		std::stack<pstring> opstk;
		std::vector<pstring> postfix;
		std::vector<pstring> sexpr1;
		std::vector<pstring> sexpr;

		// FIXME: We really need to switch to ptokenizer and fix negative number
		//        handling in ptokenizer.

		// Fix numbers exponential numbers
		for (std::size_t i = 0; i < sexpr2.size(); )
		{
			if (i + 2 < sexpr2.size() && sexpr2[i].length() > 1)
			{
				auto r(plib::right(sexpr2[i], 1));
				auto ne(sexpr2[i+1]);
				if ((is_number(sexpr2[i]))
					&& (r == "e" || r == "E")
					&& (ne == "-" || ne == "+"))
				{
					sexpr1.push_back(sexpr2[i] + ne + sexpr2[i+2]);
					i+=3;
				}
				else
					sexpr1.push_back(sexpr2[i++]);
			}
			else
				sexpr1.push_back(sexpr2[i++]);
		}
		// Fix numbers with unary minus/plus
		for (std::size_t i = 0; i < sexpr1.size(); )
		{
			if (sexpr1[i]=="-" && (i+1 < sexpr1.size()) && is_number(sexpr1[i+1]))
			{
				if (i==0 || !(is_number(sexpr1[i-1]) || sexpr1[i-1] == ")" || is_id(sexpr1[i-1])))
				{
					sexpr.push_back("-" + sexpr1[i+1]);
					i+=2;
				}
				else
					sexpr.push_back(sexpr1[i++]);
			}
			else if (sexpr1[i]=="-" && (i+1 < sexpr1.size()) && (is_id(sexpr1[i+1]) || sexpr1[i+1] == "("))
			{
				if (i==0 || !(is_number(sexpr1[i-1]) || sexpr1[i-1] == ")" || is_id(sexpr1[i-1])))
				{
					sexpr.emplace_back("neg");
					sexpr.push_back(sexpr1[i+1]);
					i+=2;
				}
				else
					sexpr.push_back(sexpr1[i++]);
			}
			else
				sexpr.push_back(sexpr1[i++]);
		}

		for (std::size_t i = 0; i < sexpr.size(); i++)
		{
			pstring &s = sexpr[i];
			if (s=="(")
				opstk.push(s);
			else if (s==")")
			{
				pstring x = pop_check(opstk, expr);
				while (x != "(")
				{
					postfix.push_back(x);
					x = pop_check(opstk, expr);
				}
				if (!opstk.empty() && get_prio(opstk.top()) == 0)
					postfix.push_back(pop_check(opstk, expr));
			}
			else if (s==",")
			{
				pstring x = pop_check(opstk, expr);
				while (x != "(")
				{
					postfix.push_back(x);
					x = pop_check(opstk, expr);
				}
				opstk.push(x);
			}
			else {
				int prio = get_prio(s);
				if (prio>0)
				{
					if (opstk.empty())
						opstk.push(s);
					else
					{
						if (get_prio(opstk.top()) >= prio)
							postfix.push_back(pop_check(opstk, expr));
						opstk.push(s);
					}
				}
				else if (prio == 0) // Function or variable
				{
					if ((i+1<sexpr.size()) && sexpr[i+1] == "(")
						opstk.push(s);
					else
						postfix.push_back(s);
				}
				else
					postfix.push_back(s);
			}
		}
		while (!opstk.empty())
		{
			postfix.push_back(opstk.top());
			opstk.pop();
		}
		//for (auto &e : postfix)
		//  printf("\t%s\n", e.c_str());
		compile_postfix(inputs, postfix, expr);
	}

	template <typename NT>
	static inline std::enable_if_t<plib::is_floating_point<NT>::value, NT>
	lfsr_random(std::uint16_t &lfsr) noexcept
	{
		std::uint16_t lsb = lfsr & 1;
		lfsr >>= 1;
		if (lsb)
			lfsr ^= 0xB400U; // NOLINT: taps 15, 13, 12, 10
		return narrow_cast<NT>(lfsr) / narrow_cast<NT>(0xffffU); // NOLINT
	}
#if 0
	// Currently unused since no integral type pfunction defined
	template <typename NT>
	static inline std::enable_if_t<plib::is_integral<NT>::value, NT>
	lfsr_random(std::uint16_t &lfsr) noexcept
	{
		std::uint16_t lsb = lfsr & 1;
		lfsr >>= 1;
		if (lsb)
			lfsr ^= 0xB400U; // NOLINT: taps 15, 13, 12, 10
		return narrow_cast<NT>(lfsr);
	}
#endif
	#define ST0 stack[ptr+1]
	#define ST1 stack[ptr]
	#define ST2 stack[ptr-1]

	#define OP(OP, ADJ, EXPR) \
	case OP: \
		ptr-= (ADJ); \
		stack[ptr-1] = (EXPR); \
		break;

	template <typename NT>
	NT pfunction<NT>::evaluate(const values_container &values) noexcept
	{
		std::array<value_type, MAX_STACK> stack = { plib::constants<value_type>::zero() };
		unsigned ptr = 0;
		constexpr auto zero = plib::constants<value_type>::zero();
		constexpr auto one = plib::constants<value_type>::one();
		stack[0] = plib::constants<value_type>::zero();
		for (auto &rc : m_precompiled)
		{
			switch (rc.m_cmd)
			{
				OP(ADD,  1, ST2 + ST1)
				OP(MULT, 1, ST2 * ST1)
				OP(SUB,  1, ST2 - ST1)
				OP(DIV,  1, ST2 / ST1)
				OP(EQ,   1, ST2 == ST1 ? one : zero)
				OP(NE,   1, ST2 != ST1 ? one : zero)
				OP(GT,   1, ST2 > ST1 ? one : zero)
				OP(LT,   1, ST2 < ST1 ? one : zero)
				OP(LE,   1, ST2 <= ST1 ? one : zero)
				OP(GE,   1, ST2 >= ST1 ? one : zero)
				OP(IF,   2, (ST2 != zero) ? ST1 : ST0)
				OP(NEG,  0, -ST2)
				OP(POW,  1, plib::pow(ST2, ST1))
				OP(LOG,  0, plib::log(ST2))
				OP(SIN,  0, plib::sin(ST2))
				OP(COS,  0, plib::cos(ST2))
				OP(MAX,  1, std::max(ST2, ST1))
				OP(MIN,  1, std::min(ST2, ST1))
				OP(TRUNC,  0, plib::trunc(ST2))
				case RAND:
					stack[ptr++] = lfsr_random<value_type>(m_lfsr);
					break;
				case PUSH_INPUT:
					stack[ptr++] = values[rc.m_param.index];
					break;
				case PUSH_CONST:
					stack[ptr++] = rc.m_param.val;
					break;
				// please compiler
				case LP:
				case RP:
					break;
			}
		}
		return stack[ptr-1];
	}

	template class pfunction<float>;
	template class pfunction<double>;
	template class pfunction<long double>;
#if (PUSE_FLOAT128)
	template class pfunction<FLOAT128>;
#endif

} // namespace plib