mirror of
https://github.com/ekeeke/Genesis-Plus-GX.git
synced 2024-12-27 03:31:49 +01:00
* fixed 2-Cell vertical scrolling when column 0 is shifted.
* added support for 2-Cell vertical scrolling in Interlaced 2 mode. * improved Z80 core accuracy
This commit is contained in:
ekeeke31
parent
f2e93d4949
commit
b40bcf31d1
@ -14,6 +14,8 @@ Genesis Plus GX 1.4.0 (??/??/????) (Eke-Eke)
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* added 3-Band EQ for fully configurable sound filtering (credits to Neil C / Etanza Systems)
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* removed libsamplerate support, implemented faster/better FIR resampler (thanks to Blargg and AamirM)
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* improved VDP sprite masking emulation: fixes 3D level in Mickey Mania (thanks to Nemesis for his sprite test program)
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* fixed 2-Cell vertical scrolling when column 0 is shifted.
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* added support for 2-Cell vertical scrolling in Interlaced 2 mode.
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* fixed lightgun autodetection: fixes cursor position in Lethal Enforcers II
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* improved DIVU/DVIS (thanks to Jorge Cwik) & MULU/MULS 68000 instructions timing accuracy
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* updated Z80 core to last version (fixes interrupt Mode 0 timing and some BIT instructions)
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257
source/render.c
257
source/render.c
@ -970,13 +970,13 @@ static void render_bg(uint32 line, uint32 width)
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/* common data */
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uint32 xscroll = get_hscroll(line);
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uint32 yscroll = *(uint32 *)&vsram[0];
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uint32 pf_col_mask = playfield_col_mask;
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uint32 pf_row_mask = playfield_row_mask;
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uint32 pf_shift = playfield_shift;
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uint32 pf_y_mask = y_mask;
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uint32 *vs = (uint32 *)&vsram[0];
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/* B Plane */
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/* Plane B */
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uint8 *buf = ntb_buf;
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uint32 start = 0;
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uint32 end = width >> 4;
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@ -984,21 +984,21 @@ static void render_bg(uint32 line, uint32 width)
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#ifdef LSB_FIRST
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uint32 shift = (xscroll >> 16) & 0x0F;
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uint32 index = pf_col_mask + 1 - ((xscroll >> 20) & pf_col_mask);
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uint32 y_scroll = (line + ((vs[0] >> 16) & 0x3FF)) & pf_row_mask;
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uint32 v_line = (line + ((yscroll >> 16) & 0x3FF)) & pf_row_mask;
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#else
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uint32 shift = (xscroll & 0x0F);
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uint32 index = pf_col_mask + 1 - ((xscroll >> 4) & pf_col_mask);
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uint32 y_scroll = (line + (vs[0] & 0x3FF)) & pf_row_mask;
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uint32 v_line = (line + (yscroll & 0x3FF)) & pf_row_mask;
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#endif
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uint32 v_line = (y_scroll & 7) << 3;
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uint32 *nt = (uint32 *)&vram[ntbb + (((y_scroll >> 3) << pf_shift) & pf_y_mask)];
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uint32 *nt = (uint32 *)&vram[ntbb + (((v_line >> 3) << pf_shift) & pf_y_mask)];
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v_line = (v_line & 7) << 3;
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if(shift)
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{
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dst = (uint32 *)&buf[0x10 + shift];
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atbuf = nt[(index-1) & pf_col_mask];
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DRAW_COLUMN(atbuf, v_line);
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DRAW_COLUMN(atbuf, v_line)
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}
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dst = (uint32 *)&buf[0x20 + shift];
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@ -1010,8 +1010,10 @@ static void render_bg(uint32 line, uint32 width)
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/* Window and Plane A */
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buf = nta_buf;
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uint32 a = (reg[18] & 0x1F) << 3;
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uint32 w = (reg[18] >> 7) & 1;
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if (w == (line >= a))
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{
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/* Window takes up entire line */
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@ -1035,15 +1037,15 @@ static void render_bg(uint32 line, uint32 width)
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#ifdef LSB_FIRST
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shift = (xscroll & 0x0F);
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index = pf_col_mask + start + 1 - ((xscroll >> 4) & pf_col_mask);
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y_scroll = (line + (vs[0] & 0x3FF)) & pf_row_mask;
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v_line = (line + (yscroll & 0x3FF)) & pf_row_mask;
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#else
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shift = (xscroll >> 16) & 0x0F;
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index = pf_col_mask + start + 1 - ((xscroll >> 20) & pf_col_mask);
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y_scroll = (line + ((vs[0] >> 16) & 0x3FF)) & pf_row_mask;
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v_line = (line + ((yscroll >> 16) & 0x3FF)) & pf_row_mask;
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#endif
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v_line = (y_scroll & 7) << 3;
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nt = (uint32 *)&vram[ntab + (((y_scroll >> 3) << pf_shift) & pf_y_mask)];
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nt = (uint32 *)&vram[ntab + (((v_line >> 3) << pf_shift) & pf_y_mask)];
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v_line = (v_line & 7) << 3;
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if(shift)
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{
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@ -1053,7 +1055,7 @@ static void render_bg(uint32 line, uint32 width)
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if (start) atbuf = nt[index & pf_col_mask];
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else atbuf = nt[(index-1) & pf_col_mask];
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DRAW_COLUMN(atbuf, v_line);
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DRAW_COLUMN(atbuf, v_line)
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}
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dst = (uint32 *)&buf[0x20 + shift + (start<<4)];
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@ -1074,6 +1076,7 @@ static void render_bg(uint32 line, uint32 width)
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v_line = (line & 7) << 3;
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nt = (uint32 *)&vram[ntwb | ((line >> 3) << (6 + (reg[12] & 1)))];
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dst = (uint32 *)&buf[0x20 + (start << 4)];
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for(column = start; column < end; column ++)
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{
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atbuf = nt[column];
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@ -1094,7 +1097,7 @@ static void render_bg_vs(uint32 line, uint32 width)
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uint32 pf_y_mask = y_mask;
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uint32 *vs = (uint32 *)&vsram[0];
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/* B Plane */
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/* Plane B */
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uint8 *buf = ntb_buf;
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uint32 start = 0;
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uint32 end = width >> 4;
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@ -1107,36 +1110,45 @@ static void render_bg_vs(uint32 line, uint32 width)
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uint32 index = pf_col_mask + 1 - ((xscroll >> 4) & pf_col_mask);
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#endif
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uint32 y_scroll, v_line, *nt;
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uint32 v_line, *nt;
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if(shift)
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{
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y_scroll = (line & pf_row_mask);
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v_line = (y_scroll & 7) << 3;
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nt = (uint32 *)&vram[ntbb + (((y_scroll >> 3) << pf_shift) & pf_y_mask)];
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dst = (uint32 *)&buf[0x10 + shift];
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#ifdef LSB_FIRST
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v_line = (line + ((vs[0] >> 16) & 0x3FF)) & pf_row_mask;
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#else
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v_line = (line + (vs[0] & 0x3FF)) & pf_row_mask;
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#endif
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nt = (uint32 *)&vram[ntbb + (((v_line >> 3) << pf_shift) & pf_y_mask)];
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v_line = (v_line & 7) << 3;
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atbuf = nt[(index-1) & pf_col_mask];
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DRAW_COLUMN(atbuf, v_line);
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DRAW_COLUMN(atbuf, v_line)
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}
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dst = (uint32 *)&buf[0x20 + shift];
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for(column = start; column < end; column ++, index ++)
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for(column = 0; column < end; column ++, index ++)
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{
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#ifdef LSB_FIRST
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y_scroll = (line + ((vs[column] >> 16) & 0x3FF)) & pf_row_mask;
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v_line = (line + ((vs[column] >> 16) & 0x3FF)) & pf_row_mask;
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#else
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y_scroll = (line + (vs[column] & 0x3FF)) & pf_row_mask;
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v_line = (line + (vs[column] & 0x3FF)) & pf_row_mask;
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#endif
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v_line = (y_scroll & 7) << 3;
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nt = (uint32 *)&vram[ntbb + (((y_scroll >> 3) << pf_shift) & pf_y_mask)];
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nt = (uint32 *)&vram[ntbb + (((v_line >> 3) << pf_shift) & pf_y_mask)];
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v_line = (v_line & 7) << 3;
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atbuf = nt[index & pf_col_mask];
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DRAW_COLUMN(atbuf, v_line)
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}
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/* Window and Plane A */
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buf = nta_buf;
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uint32 a = (reg[18] & 0x1F) << 3;
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uint32 w = (reg[18] >> 7) & 1;
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if (w == (line >= a))
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{
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/* Window takes up entire line */
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@ -1168,27 +1180,33 @@ static void render_bg_vs(uint32 line, uint32 width)
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if(shift)
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{
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dst = (uint32 *)&buf[0x10 + shift + (start<<4)];
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y_scroll = (line & pf_row_mask);
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v_line = (y_scroll & 7) << 3;
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nt = (uint32 *)&vram[ntab + (((y_scroll >> 3) << pf_shift) & pf_y_mask)];
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#ifdef LSB_FIRST
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v_line = (line + (vs[start] & 0x3FF)) & pf_row_mask;
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#else
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v_line = (line + ((vs[start] >> 16) & 0x3FF)) & pf_row_mask;
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#endif
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nt = (uint32 *)&vram[ntab + (((v_line >> 3) << pf_shift) & pf_y_mask)];
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v_line = (v_line & 7) << 3;
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/* Window bug */
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if (start) atbuf = nt[index & pf_col_mask];
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else atbuf = nt[(index-1) & pf_col_mask];
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DRAW_COLUMN(atbuf, v_line);
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DRAW_COLUMN(atbuf, v_line)
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}
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dst = (uint32 *)&buf[0x20 + shift + (start<<4)];
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for(column = start; column < end; column ++, index ++)
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{
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#ifdef LSB_FIRST
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y_scroll = (line + (vs[column] & 0x3FF)) & pf_row_mask;
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v_line = (line + (vs[column] & 0x3FF)) & pf_row_mask;
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#else
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y_scroll = (line + ((vs[column] >> 16) & 0x3FF)) & pf_row_mask;
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v_line = (line + ((vs[column] >> 16) & 0x3FF)) & pf_row_mask;
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#endif
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v_line = (y_scroll & 7) << 3;
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nt = (uint32 *)&vram[ntab + (((y_scroll >> 3) << pf_shift) & pf_y_mask)];
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nt = (uint32 *)&vram[ntab + (((v_line >> 3) << pf_shift) & pf_y_mask)];
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v_line = (v_line & 7) << 3;
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atbuf = nt[index & pf_col_mask];
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DRAW_COLUMN(atbuf, v_line)
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}
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@ -1218,13 +1236,13 @@ static void render_bg_im2(uint32 line, uint32 width, uint32 odd)
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/* common data */
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uint32 xscroll = get_hscroll(line);
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uint32 yscroll = *(uint32 *)&vsram[0];
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uint32 pf_col_mask = playfield_col_mask;
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uint32 pf_row_mask = playfield_row_mask;
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uint32 pf_shift = playfield_shift;
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uint32 pf_y_mask = y_mask;
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uint32 *vs = (uint32 *)&vsram[0];
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/* B Plane */
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/* Plane B */
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uint8 *buf = ntb_buf;
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uint32 start = 0;
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uint32 end = width >> 4;
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@ -1232,28 +1250,28 @@ static void render_bg_im2(uint32 line, uint32 width, uint32 odd)
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#ifdef LSB_FIRST
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uint32 shift = (xscroll >> 16) & 0x0F;
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uint32 index = pf_col_mask + 1 - ((xscroll >> 20) & pf_col_mask);
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uint32 y_scroll = (line + ((vs[0] >> 17) & 0x3FF)) & pf_row_mask; /* IM2 specific */
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uint32 v_line = (line + ((yscroll >> 17) & 0x3FF)) & pf_row_mask;
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#else
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uint32 shift = (xscroll & 0x0F);
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uint32 index = pf_col_mask + 1 - ((xscroll >> 4) & pf_col_mask);
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uint32 y_scroll = (line + ((vs[0] >> 1) & 0x3FF)) & pf_row_mask; /* IM2 specific */
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uint32 v_line = (line + ((yscroll >> 1) & 0x3FF)) & pf_row_mask;
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#endif
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uint32 v_line = (((y_scroll & 7) << 1) | odd) << 3; /* IM2 specific */
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uint32 *nt = (uint32 *)&vram[ntbb + (((y_scroll >> 3) << pf_shift) & pf_y_mask)];
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uint32 *nt = (uint32 *)&vram[ntbb + (((v_line >> 3) << pf_shift) & pf_y_mask)];
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v_line = (((v_line & 7) << 1) | odd) << 3;
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if(shift)
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{
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dst = (uint32 *)&buf[0x10 + shift];
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atbuf = nt[(index-1) & pf_col_mask];
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DRAW_COLUMN_IM2(atbuf, v_line); /* IM2 specific */
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DRAW_COLUMN_IM2(atbuf, v_line)
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}
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dst = (uint32 *)&buf[0x20 + shift];
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for(column = 0; column < end; column ++, index ++)
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{
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atbuf = nt[index & pf_col_mask];
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DRAW_COLUMN_IM2(atbuf, v_line) /* IM2 specific */
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DRAW_COLUMN_IM2(atbuf, v_line)
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}
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/* Window and Plane A */
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@ -1283,15 +1301,15 @@ static void render_bg_im2(uint32 line, uint32 width, uint32 odd)
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#ifdef LSB_FIRST
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shift = (xscroll & 0x0F);
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index = pf_col_mask + start + 1 - ((xscroll >> 4) & pf_col_mask);
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y_scroll = (line + ((vs[0] >> 1) & 0x3FF)) & pf_row_mask; /* IM2 specific */
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v_line = (line + ((yscroll >> 1) & 0x3FF)) & pf_row_mask;
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#else
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shift = (xscroll >> 16) & 0x0F;
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index = pf_col_mask + start + 1 - ((xscroll >> 20) & pf_col_mask);
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y_scroll = (line + ((vs[0] >> 17) & 0x3FF)) & pf_row_mask; /* IM2 specific */
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v_line = (line + ((yscroll >> 17) & 0x3FF)) & pf_row_mask;
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#endif
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v_line = (((y_scroll & 7) << 1) | odd) << 3; /* IM2 specific */
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nt = (uint32 *)&vram[ntab + (((y_scroll >> 3) << pf_shift) & pf_y_mask)];
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nt = (uint32 *)&vram[ntab + (((v_line >> 3) << pf_shift) & pf_y_mask)];
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v_line = (((v_line & 7) << 1) | odd) << 3;
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if(shift)
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{
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@ -1301,14 +1319,14 @@ static void render_bg_im2(uint32 line, uint32 width, uint32 odd)
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if (start) atbuf = nt[index & pf_col_mask];
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else atbuf = nt[(index-1) & pf_col_mask];
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DRAW_COLUMN_IM2(atbuf, v_line); /* IM2 specific */
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DRAW_COLUMN_IM2(atbuf, v_line)
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}
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dst = (uint32 *)&buf[0x20 + shift + (start<<4)];
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for(column = start; column < end; column ++, index ++)
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{
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atbuf = nt[index & pf_col_mask];
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DRAW_COLUMN_IM2(atbuf, v_line) /* IM2 specific */
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DRAW_COLUMN_IM2(atbuf, v_line)
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}
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/* set for Window */
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@ -1319,17 +1337,159 @@ static void render_bg_im2(uint32 line, uint32 width, uint32 odd)
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/* Window */
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if (w)
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{
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v_line = ((line & 7) << 1 | odd) << 3; /* IM2 specific */
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v_line = ((line & 7) << 1 | odd) << 3;
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nt = (uint32 *)&vram[ntwb | ((line >> 3) << (6 + (reg[12] & 1)))];
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dst = (uint32 *)&buf[0x20 + (start << 4)];
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for(column = start; column < end; column ++)
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{
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atbuf = nt[column];
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DRAW_COLUMN_IM2(atbuf, v_line) /* IM2 specific */
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DRAW_COLUMN_IM2(atbuf, v_line)
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}
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}
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}
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static void render_bg_im2_vs(uint32 line, uint32 width, uint32 odd)
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{
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uint32 column, atex, atbuf, offs, *src, *dst;
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/* common data */
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uint32 xscroll = get_hscroll(line);
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uint32 pf_col_mask = playfield_col_mask;
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uint32 pf_row_mask = playfield_row_mask;
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uint32 pf_shift = playfield_shift;
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uint32 pf_y_mask = y_mask;
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uint32 *vs = (uint32 *)&vsram[0];
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/* Plane B */
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uint8 *buf = ntb_buf;
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uint32 start = 0;
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uint32 end = width >> 4;
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#ifdef LSB_FIRST
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uint32 shift = (xscroll >> 16) & 0x0F;
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uint32 index = pf_col_mask + 1 - ((xscroll >> 20) & pf_col_mask);
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#else
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uint32 shift = (xscroll & 0x0F);
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uint32 index = pf_col_mask + 1 - ((xscroll >> 4) & pf_col_mask);
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#endif
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uint32 v_line, *nt;
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if(shift)
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{
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dst = (uint32 *)&buf[0x10 + shift];
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#ifdef LSB_FIRST
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v_line = (line + ((vs[0] >> 17) & 0x3FF)) & pf_row_mask;
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#else
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v_line = (line + ((vs[0] >> 1) & 0x3FF)) & pf_row_mask;
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#endif
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nt = (uint32 *)&vram[ntbb + (((v_line >> 3) << pf_shift) & pf_y_mask)];
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v_line = (((v_line & 7) << 1) | odd) << 3;
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atbuf = nt[(index-1) & pf_col_mask];
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DRAW_COLUMN_IM2(atbuf, v_line)
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}
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dst = (uint32 *)&buf[0x20 + shift];
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for(column = 0; column < end; column ++, index ++)
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{
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#ifdef LSB_FIRST
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v_line = (line + ((vs[column] >> 17) & 0x3FF)) & pf_row_mask;
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#else
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v_line = (line + ((vs[column] >> 1) & 0x3FF)) & pf_row_mask;
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#endif
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nt = (uint32 *)&vram[ntbb + (((v_line >> 3) << pf_shift) & pf_y_mask)];
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v_line = (((v_line & 7) << 1) | odd) << 3;
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|
||||
atbuf = nt[index & pf_col_mask];
|
||||
DRAW_COLUMN_IM2(atbuf, v_line)
|
||||
}
|
||||
|
||||
/* Window and Plane A */
|
||||
buf = nta_buf;
|
||||
uint32 a = (reg[18] & 0x1F) << 3;
|
||||
uint32 w = (reg[18] >> 7) & 1;
|
||||
if (w == (line >= a))
|
||||
{
|
||||
/* Window takes up entire line */
|
||||
a = 0;
|
||||
w = 1;
|
||||
}
|
||||
else
|
||||
{
|
||||
/* Window and Plane A share the line */
|
||||
a = clip[0].enable;
|
||||
w = clip[1].enable;
|
||||
}
|
||||
|
||||
/* Plane A */
|
||||
if (a)
|
||||
{
|
||||
/* set for Plane A */
|
||||
start = clip[0].left;
|
||||
end = clip[0].right;
|
||||
|
||||
#ifdef LSB_FIRST
|
||||
shift = (xscroll & 0x0F);
|
||||
index = pf_col_mask + start + 1 - ((xscroll >> 4) & pf_col_mask);
|
||||
#else
|
||||
shift = (xscroll >> 16) & 0x0F;
|
||||
index = pf_col_mask + start + 1 - ((xscroll >> 20) & pf_col_mask);
|
||||
#endif
|
||||
|
||||
if(shift)
|
||||
{
|
||||
dst = (uint32 *)&buf[0x10 + shift + (start<<4)];
|
||||
|
||||
#ifdef LSB_FIRST
|
||||
v_line = (line + ((vs[start] >> 1) & 0x3FF)) & pf_row_mask;
|
||||
#else
|
||||
v_line = (line + ((vs[start] >> 17) & 0x3FF)) & pf_row_mask;
|
||||
#endif
|
||||
nt = (uint32 *)&vram[ntab + (((v_line >> 3) << pf_shift) & pf_y_mask)];
|
||||
v_line = (((v_line & 7) << 1) | odd) << 3;
|
||||
|
||||
/* Window bug */
|
||||
if (start) atbuf = nt[index & pf_col_mask];
|
||||
else atbuf = nt[(index-1) & pf_col_mask];
|
||||
|
||||
DRAW_COLUMN_IM2(atbuf, v_line)
|
||||
}
|
||||
|
||||
dst = (uint32 *)&buf[0x20 + shift + (start<<4)];
|
||||
for(column = start; column < end; column ++, index ++)
|
||||
{
|
||||
#ifdef LSB_FIRST
|
||||
v_line = (line + ((vs[column] >> 1) & 0x3FF)) & pf_row_mask;
|
||||
#else
|
||||
v_line = (line + ((vs[column] >> 17) & 0x3FF)) & pf_row_mask;
|
||||
#endif
|
||||
nt = (uint32 *)&vram[ntab + (((v_line >> 3) << pf_shift) & pf_y_mask)];
|
||||
v_line = (((v_line & 7) << 1) | odd) << 3;
|
||||
|
||||
atbuf = nt[index & pf_col_mask];
|
||||
DRAW_COLUMN_IM2(atbuf, v_line)
|
||||
}
|
||||
|
||||
/* set for Window */
|
||||
start = clip[1].left;
|
||||
end = clip[1].right;
|
||||
}
|
||||
|
||||
/* Window */
|
||||
if (w)
|
||||
{
|
||||
v_line = ((line & 7) << 1 | odd) << 3;
|
||||
nt = (uint32 *)&vram[ntwb | ((line >> 3) << (6 + (reg[12] & 1)))];
|
||||
dst = (uint32 *)&buf[0x20 + (start << 4)];
|
||||
for(column = start; column < end; column ++)
|
||||
{
|
||||
atbuf = nt[column];
|
||||
DRAW_COLUMN_IM2(atbuf, v_line)
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
/*--------------------------------------------------------------------------*/
|
||||
/* Object render functions */
|
||||
@ -1622,7 +1782,8 @@ void render_line(uint32 line, uint32 overscan)
|
||||
uint32 odd = odd_frame;
|
||||
|
||||
/* render BG layers */
|
||||
render_bg_im2(line, width, odd);
|
||||
if(reg[11] & 4) render_bg_im2_vs(line, width, odd);
|
||||
else render_bg_im2(line, width, odd);
|
||||
|
||||
if (reg[12] & 8)
|
||||
{
|
||||
|
||||
558
source/z80/z80.c
558
source/z80/z80.c
File diff suppressed because it is too large
Load Diff
Loading…
Reference in New Issue
Block a user