shithub: sms

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have psg.c compiled

--- a/psg.c

+++ b/psg.c

@@ -13,12 +13,12 @@

 	1642, 1298, 1031, 819, 650, 516, 410, 326, 0

 };

-static double cyclespersample;

-static double cycles;

+static float cyclespersample;

+static float cyc;

 static u16int freqreg[4];

 static u16int countreg[4];

 static u8int attn[4];

-static bool flipflop[4];

+static int flipflop[4];

 static u16int noise;

 static u8int curr_reg;

 static u8int curr_type;

@@ -27,13 +27,13 @@

 psginit(const u16int rate, const int clockspd)

 {

 	cyclespersample = (double)clockspd / (double)PSGDIV/ (double)rate;

-	cycles = cyclespersample;

+	cyc = cyclespersample;

 }

 void

 psgwrite(const u8int data)

 {

-	bool first = data & 128;

+	int first = data & 128;

 	if(first){

 		curr_reg = (data >> 5) & 3;

 		curr_type = (data >> 4) & 1;

@@ -68,10 +68,10 @@

 	return (flipflop[chn] ? 1 : -1) * vol_table[attn[chn]];

 }

-int16_t

+u16int

 psgstep()

 {

-	while(cycles > 0){

+	while(cyc > 0){

 		for(u8int i = 0; i < 4; i++){

 			countreg[i]--;

 			if(!countreg[i]){

@@ -89,10 +89,10 @@

 			}

 		}

-		cycles--;

+		cyc--;

 	}

-	cycles += cyclespersample;

+	cyc += cyclespersample;

 	return vol(0) + vol(1) + vol(2) + vol(3);

 }

-- 

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