From: kub <derkub@gmail.com>
Date: Sat, 14 Mar 2020 18:30:28 +0000 (+0100)
Subject: hvcounter table resolution reduced
X-Git-Tag: v2.00~766
X-Git-Url: https://notaz.gp2x.de/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=20fafa71272ab9bd7959f956dea58f5b6cb78a4f;p=picodrive.git

hvcounter table resolution reduced
---

diff --git a/pico/misc.c b/pico/misc.c
index ab282c24..4837fd3e 100644
--- a/pico/misc.c
+++ b/pico/misc.c
@@ -10,72 +10,42 @@
 
 // H-counter table for hvcounter reads in 40col mode, starting at HINT
 const unsigned char hcounts_40[] = {
-0xa5,0xa5,0xa5,0xa6,0xa6,0xa7,0xa7,0xa8,0xa8,0xa8,0xa9,0xa9,0xaa,0xaa,0xab,0xab,
-0xac,0xac,0xac,0xad,0xad,0xae,0xae,0xaf,0xaf,0xaf,0xb0,0xb0,0xb1,0xb1,0xb2,0xb2,
-0xb3,0xb3,0xb3,0xb4,0xb4,0xb5,0xb5,0xb6,0xe4,0xe4,0xe5,0xe5,0xe6,0xe6,0xe7,0xe7,
-0xe7,0xe8,0xe8,0xe8,0xe9,0xe9,0xe9,0xea,0xea,0xeb,0xeb,0xeb,0xec,0xec,0xec,0xed,
-0xed,0xed,0xee,0xee,0xee,0xef,0xef,0xf0,0xf0,0xf0,0xf1,0xf1,0xf1,0xf2,0xf2,0xf2,
-0xf3,0xf3,0xf3,0xf4,0xf4,0xf5,0xf5,0xf5,0xf6,0xf6,0xf6,0xf7,0xf7,0xf7,0xf8,0xf8,
-0xf9,0xf9,0xfa,0xfa,0xfb,0xfb,0xfb,0xfc,0xfc,0xfd,0xfd,0xfe,0xfe,0xfe,0xff,0xff,
-0x00,0x00,0x01,0x01,0x02,0x02,0x02,0x03,0x03,0x04,0x04,0x05,0x05,0x05,0x06,0x06,
-0x07,0x07,0x08,0x08,0x09,0x09,0x09,0x0a,0x0a,0x0b,0x0b,0x0c,0x0c,0x0c,0x0d,0x0d,
-0x0e,0x0e,0x0f,0x0f,0x10,0x10,0x10,0x11,0x11,0x12,0x12,0x13,0x13,0x13,0x14,0x14,
-0x15,0x15,0x16,0x16,0x17,0x17,0x17,0x18,0x18,0x19,0x19,0x1a,0x1a,0x1a,0x1b,0x1b,
-0x1c,0x1c,0x1d,0x1d,0x1e,0x1e,0x1e,0x1f,0x1f,0x20,0x20,0x21,0x21,0x21,0x22,0x22,
-0x23,0x23,0x24,0x24,0x25,0x25,0x25,0x26,0x26,0x27,0x27,0x28,0x28,0x28,0x29,0x29,
-0x2a,0x2a,0x2b,0x2b,0x2c,0x2c,0x2c,0x2d,0x2d,0x2e,0x2e,0x2f,0x2f,0x2f,0x30,0x30,
-0x31,0x31,0x32,0x32,0x33,0x33,0x33,0x34,0x34,0x35,0x35,0x36,0x36,0x36,0x37,0x37,
-0x38,0x38,0x39,0x39,0x3a,0x3a,0x3a,0x3b,0x3b,0x3c,0x3c,0x3d,0x3d,0x3d,0x3e,0x3e,
-0x3f,0x3f,0x40,0x40,0x41,0x41,0x41,0x42,0x42,0x43,0x43,0x44,0x44,0x44,0x45,0x45,
-0x46,0x46,0x47,0x47,0x48,0x48,0x48,0x49,0x49,0x4a,0x4a,0x4b,0x4b,0x4b,0x4c,0x4c,
-0x4d,0x4d,0x4e,0x4e,0x4f,0x4f,0x4f,0x50,0x50,0x51,0x51,0x52,0x52,0x52,0x53,0x53,
-0x54,0x54,0x55,0x55,0x56,0x56,0x56,0x57,0x57,0x58,0x58,0x59,0x59,0x59,0x5a,0x5a,
-0x5b,0x5b,0x5c,0x5c,0x5d,0x5d,0x5d,0x5e,0x5e,0x5f,0x5f,0x60,0x60,0x60,0x61,0x61,
-0x62,0x62,0x63,0x63,0x64,0x64,0x64,0x65,0x65,0x66,0x66,0x67,0x67,0x67,0x68,0x68,
-0x69,0x69,0x6a,0x6a,0x6b,0x6b,0x6b,0x6c,0x6c,0x6d,0x6d,0x6e,0x6e,0x6e,0x6f,0x6f,
-0x70,0x70,0x71,0x71,0x72,0x72,0x72,0x73,0x73,0x74,0x74,0x75,0x75,0x75,0x76,0x76,
-0x77,0x77,0x78,0x78,0x79,0x79,0x79,0x7a,0x7a,0x7b,0x7b,0x7c,0x7c,0x7c,0x7d,0x7d,
-0x7e,0x7e,0x7f,0x7f,0x80,0x80,0x80,0x81,0x81,0x82,0x82,0x83,0x83,0x83,0x84,0x84,
-0x85,0x85,0x86,0x86,0x87,0x87,0x87,0x88,0x88,0x89,0x89,0x8a,0x8a,0x8a,0x8b,0x8b,
-0x8c,0x8c,0x8d,0x8d,0x8e,0x8e,0x8e,0x8f,0x8f,0x90,0x90,0x91,0x91,0x91,0x92,0x92,
-0x93,0x93,0x94,0x94,0x95,0x95,0x95,0x96,0x96,0x97,0x97,0x98,0x98,0x98,0x99,0x99,
-0x9a,0x9a,0x9b,0x9b,0x9c,0x9c,0x9c,0x9d,0x9d,0x9e,0x9e,0x9f,0x9f,0x9f,0xa0,0xa0,
-0xa1,0xa1,0xa2,0xa2,0xa3,0xa3,0xa3,0xa4,0xa5,0xa5,0xa5,0xa6,0xa6,0xa7,0xa7,0xa8,
+0xa5,0xa6,0xa7,0xa7,0xa8,0xa9,0xaa,0xab,0xac,0xad,0xae,0xae,0xaf,0xb0,0xb1,0xb2,
+0xb3,0xb4,0xb5,0xb5,0xe4,0xe5,0xe6,0xe7,0xe8,0xe8,0xe9,0xea,0xea,0xeb,0xec,0xed,
+0xed,0xee,0xef,0xef,0xf0,0xf1,0xf2,0xf2,0xf3,0xf4,0xf4,0xf5,0xf6,0xf7,0xf7,0xf8,
+0xf9,0xfa,0xfb,0xfc,0xfd,0xfd,0xfe,0xff,0x00,0x01,0x02,0x03,0x04,0x04,0x05,0x06,
+0x07,0x08,0x09,0x0a,0x0b,0x0b,0x0c,0x0d,0x0e,0x0f,0x10,0x11,0x12,0x12,0x13,0x14,
+0x15,0x16,0x17,0x18,0x19,0x19,0x1a,0x1b,0x1c,0x1d,0x1e,0x1f,0x20,0x20,0x21,0x22,
+0x23,0x24,0x25,0x26,0x27,0x27,0x28,0x29,0x2a,0x2b,0x2c,0x2d,0x2e,0x2e,0x2f,0x30,
+0x31,0x32,0x33,0x34,0x35,0x35,0x36,0x37,0x38,0x39,0x3a,0x3b,0x3c,0x3c,0x3d,0x3e,
+0x3f,0x40,0x41,0x42,0x43,0x43,0x44,0x45,0x46,0x47,0x48,0x49,0x4a,0x4a,0x4b,0x4c,
+0x4d,0x4e,0x4f,0x50,0x51,0x51,0x52,0x53,0x54,0x55,0x56,0x57,0x58,0x58,0x59,0x5a,
+0x5b,0x5c,0x5d,0x5e,0x5f,0x5f,0x60,0x61,0x62,0x63,0x64,0x65,0x66,0x66,0x67,0x68,
+0x69,0x6a,0x6b,0x6c,0x6d,0x6d,0x6e,0x6f,0x70,0x71,0x72,0x73,0x74,0x74,0x75,0x76,
+0x77,0x78,0x79,0x7a,0x7b,0x7b,0x7c,0x7d,0x7e,0x7f,0x80,0x81,0x82,0x82,0x83,0x84,
+0x85,0x86,0x87,0x88,0x89,0x89,0x8a,0x8b,0x8c,0x8d,0x8e,0x8f,0x90,0x90,0x91,0x92,
+0x93,0x94,0x95,0x96,0x97,0x97,0x98,0x99,0x9a,0x9b,0x9c,0x9d,0x9e,0x9e,0x9f,0xa0,
+0xa1,0xa2,0xa3,0xa4,0xa5,0xa5,0xa6,0xa7,0xa8,0xa9,0xaa,0xab,0xac,0xac,0xad,0xae,
 };
 
 // H-counter table for hvcounter reads in 32col mode, starting at HINT
 const unsigned char hcounts_32[] = {
-0x85,0x85,0x85,0x86,0x86,0x86,0x87,0x87,0x87,0x88,0x88,0x88,0x89,0x89,0x89,0x8a,
-0x8a,0x8a,0x8b,0x8b,0x8c,0x8c,0x8c,0x8d,0x8d,0x8d,0x8e,0x8e,0x8e,0x8f,0x8f,0x8f,
-0x90,0x90,0x90,0x91,0x91,0x91,0x92,0x92,0x93,0x93,0x93,0xe9,0xe9,0xe9,0xea,0xea,
-0xea,0xeb,0xeb,0xeb,0xec,0xec,0xec,0xed,0xed,0xed,0xee,0xee,0xef,0xef,0xef,0xf0,
-0xf0,0xf0,0xf1,0xf1,0xf1,0xf2,0xf2,0xf2,0xf3,0xf3,0xf3,0xf4,0xf4,0xf4,0xf5,0xf5,
-0xf6,0xf6,0xf6,0xf7,0xf7,0xf7,0xf8,0xf8,0xf8,0xf9,0xf9,0xf9,0xfa,0xfa,0xfa,0xfb,
-0xfb,0xfb,0xfc,0xfc,0xfd,0xfd,0xfd,0xfe,0xfe,0xfe,0xff,0xff,0xff,0x00,0x00,0x00,
-0x01,0x01,0x01,0x02,0x02,0x02,0x03,0x03,0x04,0x04,0x04,0x05,0x05,0x05,0x06,0x06,
-0x06,0x07,0x07,0x07,0x08,0x08,0x08,0x09,0x09,0x09,0x0a,0x0a,0x0b,0x0b,0x0b,0x0c,
-0x0c,0x0c,0x0d,0x0d,0x0d,0x0e,0x0e,0x0e,0x0f,0x0f,0x0f,0x10,0x10,0x10,0x11,0x11,
-0x12,0x12,0x12,0x13,0x13,0x13,0x14,0x14,0x14,0x15,0x15,0x15,0x16,0x16,0x16,0x17,
-0x17,0x17,0x18,0x18,0x19,0x19,0x19,0x1a,0x1a,0x1a,0x1b,0x1b,0x1b,0x1c,0x1c,0x1c,
-0x1d,0x1d,0x1d,0x1e,0x1e,0x1e,0x1f,0x1f,0x20,0x20,0x20,0x21,0x21,0x21,0x22,0x22,
-0x22,0x23,0x23,0x23,0x24,0x24,0x24,0x25,0x25,0x25,0x26,0x26,0x27,0x27,0x27,0x28,
-0x28,0x28,0x29,0x29,0x29,0x2a,0x2a,0x2a,0x2b,0x2b,0x2b,0x2c,0x2c,0x2c,0x2d,0x2d,
-0x2e,0x2e,0x2e,0x2f,0x2f,0x2f,0x30,0x30,0x30,0x31,0x31,0x31,0x32,0x32,0x32,0x33,
-0x33,0x33,0x34,0x34,0x35,0x35,0x35,0x36,0x36,0x36,0x37,0x37,0x37,0x38,0x38,0x38,
-0x39,0x39,0x39,0x3a,0x3a,0x3a,0x3b,0x3b,0x3c,0x3c,0x3c,0x3d,0x3d,0x3d,0x3e,0x3e,
-0x3e,0x3f,0x3f,0x3f,0x40,0x40,0x40,0x41,0x41,0x41,0x42,0x42,0x43,0x43,0x43,0x44,
-0x44,0x44,0x45,0x45,0x45,0x46,0x46,0x46,0x47,0x47,0x47,0x48,0x48,0x48,0x49,0x49,
-0x4a,0x4a,0x4a,0x4b,0x4b,0x4b,0x4c,0x4c,0x4c,0x4d,0x4d,0x4d,0x4e,0x4e,0x4e,0x4f,
-0x4f,0x4f,0x50,0x50,0x51,0x51,0x51,0x52,0x52,0x52,0x53,0x53,0x53,0x54,0x54,0x54,
-0x55,0x55,0x55,0x56,0x56,0x56,0x57,0x57,0x58,0x58,0x58,0x59,0x59,0x59,0x5a,0x5a,
-0x5a,0x5b,0x5b,0x5b,0x5c,0x5c,0x5c,0x5d,0x5d,0x5d,0x5e,0x5e,0x5f,0x5f,0x5f,0x60,
-0x60,0x60,0x61,0x61,0x61,0x62,0x62,0x62,0x63,0x63,0x63,0x64,0x64,0x64,0x65,0x65,
-0x66,0x66,0x66,0x67,0x67,0x67,0x68,0x68,0x68,0x69,0x69,0x69,0x6a,0x6a,0x6a,0x6b,
-0x6b,0x6b,0x6c,0x6c,0x6d,0x6d,0x6d,0x6e,0x6e,0x6e,0x6f,0x6f,0x6f,0x70,0x70,0x70,
-0x71,0x71,0x71,0x72,0x72,0x72,0x73,0x73,0x74,0x74,0x74,0x75,0x75,0x75,0x76,0x76,
-0x76,0x77,0x77,0x77,0x78,0x78,0x78,0x79,0x79,0x79,0x7a,0x7a,0x7b,0x7b,0x7b,0x7c,
-0x7c,0x7c,0x7d,0x7d,0x7d,0x7e,0x7e,0x7e,0x7f,0x7f,0x7f,0x80,0x80,0x80,0x81,0x81,
-0x82,0x82,0x82,0x83,0x83,0x83,0x84,0x84,0x85,0x85,0x85,0x86,0x86,0x86,0x87,0x87,
+0x85,0x86,0x86,0x87,0x88,0x88,0x89,0x8a,0x8a,0x8b,0x8c,0x8d,0x8d,0x8e,0x8f,0x8f,
+0x90,0x91,0x91,0x92,0x93,0xe9,0xe9,0xea,0xeb,0xeb,0xec,0xed,0xed,0xee,0xef,0xf0,
+0xf0,0xf1,0xf2,0xf2,0xf3,0xf4,0xf4,0xf5,0xf6,0xf7,0xf7,0xf8,0xf9,0xf9,0xfa,0xfb,
+0xfb,0xfc,0xfd,0xfe,0xfe,0xff,0x00,0x00,0x01,0x02,0x02,0x03,0x04,0x05,0x05,0x06,
+0x07,0x07,0x08,0x09,0x09,0x0a,0x0b,0x0c,0x0c,0x0d,0x0e,0x0e,0x0f,0x10,0x10,0x11,
+0x12,0x13,0x13,0x14,0x15,0x15,0x16,0x17,0x17,0x18,0x19,0x1a,0x1a,0x1b,0x1c,0x1c,
+0x1d,0x1e,0x1e,0x1f,0x20,0x21,0x21,0x22,0x23,0x23,0x24,0x25,0x25,0x26,0x27,0x28,
+0x28,0x29,0x2a,0x2a,0x2b,0x2c,0x2c,0x2d,0x2e,0x2f,0x2f,0x30,0x31,0x31,0x32,0x33,
+0x33,0x34,0x35,0x36,0x36,0x37,0x38,0x38,0x39,0x3a,0x3a,0x3b,0x3c,0x3d,0x3d,0x3e,
+0x3f,0x3f,0x40,0x41,0x41,0x42,0x43,0x44,0x44,0x45,0x46,0x46,0x47,0x48,0x48,0x49,
+0x4a,0x4b,0x4b,0x4c,0x4d,0x4d,0x4e,0x4f,0x4f,0x50,0x51,0x52,0x52,0x53,0x54,0x54,
+0x55,0x56,0x56,0x57,0x58,0x59,0x59,0x5a,0x5b,0x5b,0x5c,0x5d,0x5d,0x5e,0x5f,0x60,
+0x60,0x61,0x62,0x62,0x63,0x64,0x64,0x65,0x66,0x67,0x67,0x68,0x69,0x69,0x6a,0x6b,
+0x6b,0x6c,0x6d,0x6e,0x6e,0x6f,0x70,0x70,0x71,0x72,0x72,0x73,0x74,0x75,0x75,0x76,
+0x77,0x77,0x78,0x79,0x79,0x7a,0x7b,0x7c,0x7c,0x7d,0x7e,0x7e,0x7f,0x80,0x80,0x81,
+0x82,0x83,0x83,0x84,0x85,0x85,0x86,0x87,0x87,0x88,0x89,0x8a,0x8a,0x8b,0x8c,0x8c,
 };
 
 #ifndef _ASM_MISC_C
diff --git a/pico/videoport.c b/pico/videoport.c
index fd7a3a46..cbcea796 100644
--- a/pico/videoport.c
+++ b/pico/videoport.c
@@ -975,8 +975,8 @@ PICO_INTERNAL_ASM unsigned int PicoVideoRead(unsigned int a)
     if (Pico.video.reg[0]&2)
          d = Pico.video.hv_latch;
     else if (Pico.video.reg[12]&1)
-         d = hcounts_40[d] | (Pico.video.v_counter << 8);
-    else d = hcounts_32[d] | (Pico.video.v_counter << 8);
+         d = hcounts_40[d/2] | (Pico.video.v_counter << 8);
+    else d = hcounts_32[d/2] | (Pico.video.v_counter << 8);
 
     elprintf(EL_HVCNT, "hv: %02x %02x [%u] @ %06x", d, Pico.video.v_counter, SekCyclesDone(), SekPc);
     return d;
@@ -1035,8 +1035,8 @@ unsigned char PicoVideoRead8HV_L(void)
   if (Pico.video.reg[0]&2)
        d = Pico.video.hv_latch;
   else if (Pico.video.reg[12]&1)
-       d = hcounts_40[d];
-  else d = hcounts_32[d];
+       d = hcounts_40[d/2];
+  else d = hcounts_32[d/2];
   elprintf(EL_HVCNT, "hcounter: %02x [%u] @ %06x", d, SekCyclesDone(), SekPc);
   return d;
 }