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remove incomplete examples

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I've remade these in the saturn-examples repository.
This commit is contained in:
Zack Buhman 2023-01-30 00:10:57 -08:00
parent 1af56ebe64
commit f49259ba72
3 changed files with 0 additions and 185 deletions
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66
example/bitmap.c
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#include "vdp2.h"
#include "vdp1.h"
#include "scu.h"
#include "smpc.h"
#include "sh2.h"
#include "scsp.h"
#include "m68k.h"
void fill_32(u32 * buf, u32 v, s32 n)
{
while (n > 0) {
*buf++ = v;
n -= (sizeof (u32));
}
}
void copy_16(u16 * src, u16 * dst, s32 n)
{
while (n > 0) {
*dst++ = *src++;
n -= (sizeof (u16));
}
}
static inline void put_pixel(int cx, int cy, u16 color)
{
#define CW 320
#define CH 240
int sx = (CW / 2) + cx;
int sy = (CH / 2) - cy;
vdp2.vram.u16[512 * sy + sx] = (1 << 15) | color;
}
void start(void)
{
// DISP: Please make sure to change this bit from 0 to 1 during V blank.
vdp2.reg.TVMD = ( TVMD__DISP | TVMD__LSMD__NON_INTERLACE
| TVMD__VRESO__240 | TVMD__HRESO__NORMAL_320);
//
// vdp2: bitmap mode
//
vdp2.reg.BGON = BGON__N0ON;
vdp2.reg.CHCTLA = ( CHCTLA__N0CHCN__32K_COLOR // 15 bits per pixel, RGB
| CHCTLA__N0BMSZ__512x256_DOT
| CHCTLA__N0BMEN__BITMAP_FORMAT
);
vdp2.reg.MPOFN = MPOFN__N0MP(0); // bits 2~0
// (boundary address value of the bit map pattern) =
// (map offset register value 3 bit) x 20000H
// zeroize NBG0 (black)
s32 plane_size = 512 * 256 * 2;
fill_32(&vdp2.vram.u32[0x0 / 4], (1 << 15) | (1 << 31), plane_size);
//vdp2.vram.u16[0x0 / 2] = (1 << 15) | 0x31;
//vdp2.vram.u16[((512 * 239 + 319) * 2) / 2] = (1 << 15) | 0x7fff;
put_pixel(0, 100, 0x3f);
put_pixel(0, 0, 0x7fff);
while (1) {}
}

37
example/cell.c
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//
// vdp2: define and place a single character on NBG0
//
vdp2.reg.BGON = BGON__N0ON;
vdp2.reg.CHCTLA = ( CHCTLA__N0CHCN__16_COLOR // 4 bits per pixel, palettized
| CHCTLA__N0BMEN__CELL_FORMAT
| CHCTLA__N0CHSZ__1x1_CELL
);
vdp2.reg.PNCN0 = PNCN0__N0PNB__2WORD;
vdp2.reg.PLSZ = PLSZ__N0PLSZ__1x1;
vdp2.vram.u16[16 + 0] = (1 << 12); // top left pixel of character # 1
vdp2.vram.u16[16 + 15] = (2 << 0 ); // bottom right pixel of character # 1
vdp2.cram.u16[1] = (0x31 << 5); // green
vdp2.cram.u16[2] = (0x31 << 10); // blue
// given:
// Plane Size: 1h X 1v
// Pattern Name Data Size: 2 Words
// only bits 5~0 are used for map address calculation
// so MPOFN is effectively ignored
vdp2.reg.MPOFN = MPOFN__N0MP(0); // bits 8~6
vdp2.reg.MPABN0 = MPABN0__N0MPB(0) | MPABN0__N0MPA(1); // bits 5~0
vdp2.reg.MPCDN0 = MPABN0__N0MPB(0) | MPABN0__N0MPA(1); // bits 5~0
// zeroize NBG0 plane; this should be less than 0x8000 above
s32 plane_size = 64 * 64 * 4; // is this correct ?
fill_32(&vdp2.vram.u32[(0x4000 / 4)], 0, plane_size);
// Table 4.8 Address value of map designated register by setting
// (bit 5~0) * 0x4000
vdp2.vram.u32[(0x4000 / 4)] = PATTERN_NAME_TABLE_2WORD__CHARACTER(1);

82
example/polygon.c
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//
// vdp1:
//
// The VBE setting must be set immediately after the V-blank IN interrupt.
//
// TVM settings must be performed from the second H-blank IN interrupt after
// the V-blank IN interrupt to the H-blank IN interrupt immediately after the
// V-blank OUT interrupt.
vdp1.reg.TVMR = ( TVMR__TVM__NTSC_PAL
| TVMR__TVM__FRAMEBUFFER_NONROTATION
| TVMR__TVM__16BPP
);
// make FCM and FCT settings immediately after V-blank OUT
vdp1.reg.FBCR = 0;
// "A command table must always be stored at address 00000H to 0001EH."
// we can't trigger a plot yet because we have no (valid) table.
//vdp1.reg.PTMR = PTMR__PTM__FRAME_CHANGE;
vdp1.reg.EWDR = 0; // black
// upper-left
vdp1.reg.EWLR = PTMR__EWLR__16BPP_X1(0) | PTMR__EWLR__Y1(0);
// lower-right
vdp1.reg.EWRR = PTMR__EWRR__16BPP_X3(319) | PTMR__EWRR__Y3(239);
vdp1.vram.cmd[0].CTRL = CTRL__JP__JUMP_NEXT | CTRL__COMM__USER_CLIP_COORDINATES;
vdp1.vram.cmd[0].LINK = 0;
vdp1.vram.cmd[0].XA = 0;
vdp1.vram.cmd[0].YA = 0;
vdp1.vram.cmd[0].XC = 319;
vdp1.vram.cmd[0].YC = 239;
vdp1.vram.cmd[1].CTRL = CTRL__JP__JUMP_NEXT | CTRL__COMM__SYSTEM_CLIP_COORDINATES;
vdp1.vram.cmd[1].LINK = 0;
vdp1.vram.cmd[1].XC = 319;
vdp1.vram.cmd[1].YC = 239;
vdp1.vram.cmd[2].CTRL = CTRL__JP__JUMP_NEXT | CTRL__COMM__LOCAL_COORDINATE;
vdp1.vram.cmd[2].LINK = 0;
vdp1.vram.cmd[2].XA = 0;
vdp1.vram.cmd[2].YA = 0;
vdp1.vram.cmd[3].CTRL = CTRL__JP__JUMP_NEXT | CTRL__COMM__POLYGON;
vdp1.vram.cmd[3].LINK = 0;
vdp1.vram.cmd[3].PMOD = CTRL__PMOD__ECD | CTRL__PMOD__SPD;
vdp1.vram.cmd[3].COLR = 0x2; // palette color #2
vdp1.vram.cmd[3].XA = 50;
vdp1.vram.cmd[3].YA = 50;
vdp1.vram.cmd[3].XB = 150;
vdp1.vram.cmd[3].YB = 50;
vdp1.vram.cmd[3].XC = 150;
vdp1.vram.cmd[3].YC = 150;
vdp1.vram.cmd[3].XD = 50;
vdp1.vram.cmd[3].YD = 150;
vdp1.vram.cmd[4].CTRL = CTRL__JP__JUMP_NEXT | CTRL__COMM__POLYGON;
vdp1.vram.cmd[4].LINK = 0;
vdp1.vram.cmd[4].PMOD = CTRL__PMOD__ECD | CTRL__PMOD__SPD;
vdp1.vram.cmd[4].COLR = (1 << 15) | (0x31 << 10) | (0x31 << 0); // RGB15 magenta
vdp1.vram.cmd[4].XA = 100;
vdp1.vram.cmd[4].YA = 50;
vdp1.vram.cmd[4].XB = 150;
vdp1.vram.cmd[4].YB = 100;
vdp1.vram.cmd[4].XC = 100;
vdp1.vram.cmd[4].YC = 150;
vdp1.vram.cmd[4].XD = 50;
vdp1.vram.cmd[4].YD = 100;
vdp1.vram.cmd[5].CTRL = CTRL__END;
// priorities
vdp2.reg.PRISA = 0x0101;
vdp2.reg.PRISB = 0x0101;
vdp2.reg.PRISC = 0x0101;
vdp2.reg.PRISD = 0x0101;
// start drawing
vdp1.reg.PTMR = PTMR__PTM__FRAME_CHANGE;