📄 blizzard.c
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break; case 0x08: /* PLL Lock Synthesis Control 0 */ s->pll_ctrl &= 0xf00; s->pll_ctrl |= (value << 0) & 0x0ff; break; case 0x0a: /* PLL Lock Synthesis Control 1 */ s->pll_ctrl &= 0x0ff; s->pll_ctrl |= (value << 8) & 0xf00; break; case 0x0c: /* PLL Mode Control 0 */ s->pll_mode = value & 0x77; if ((value & 3) == 0 || (value & 3) == 3) fprintf(stderr, "%s: wrong PLL Control bits (%i)\n", __FUNCTION__, value & 3); break; case 0x0e: /* Clock-Source Select */ s->clksel = value & 0xff; break; case 0x10: /* Memory Controller Activate */ s->memenable = value & 1; break; case 0x14: /* Memory Controller Bank 0 Status Flag */ break; case 0x18: /* Auto-Refresh Interval Setting 0 */ s->memrefresh &= 0xf00; s->memrefresh |= (value << 0) & 0x0ff; break; case 0x1a: /* Auto-Refresh Interval Setting 1 */ s->memrefresh &= 0x0ff; s->memrefresh |= (value << 8) & 0xf00; break; case 0x1c: /* Power-On Sequence Timing Control */ s->timing[0] = value & 0x7f; break; case 0x1e: /* Timing Control 0 */ s->timing[1] = value & 0x17; break; case 0x20: /* Timing Control 1 */ s->timing[2] = value & 0x35; break; case 0x24: /* Arbitration Priority Control */ s->priority = value & 1; break; case 0x28: /* LCD Panel Configuration */ s->lcd_config = value & 0xff; if (value & (1 << 7)) fprintf(stderr, "%s: data swap not supported!\n", __FUNCTION__); break; case 0x2a: /* LCD Horizontal Display Width */ s->x = value << 3; break; case 0x2c: /* LCD Horizontal Non-display Period */ s->hndp = value & 0xff; break; case 0x2e: /* LCD Vertical Display Height 0 */ s->y &= 0x300; s->y |= (value << 0) & 0x0ff; break; case 0x30: /* LCD Vertical Display Height 1 */ s->y &= 0x0ff; s->y |= (value << 8) & 0x300; break; case 0x32: /* LCD Vertical Non-display Period */ s->vndp = value & 0xff; break; case 0x34: /* LCD HS Pulse-width */ s->hsync = value & 0xff; break; case 0x36: /* LCD HS Pulse Start Position */ s->skipx = value & 0xff; break; case 0x38: /* LCD VS Pulse-width */ s->vsync = value & 0xbf; break; case 0x3a: /* LCD VS Pulse Start Position */ s->skipy = value & 0xff; break; case 0x3c: /* PCLK Polarity */ s->pclk = value & 0x82; /* Affects calculation of s->hndp, s->hsync and s->skipx. */ break; case 0x3e: /* High-speed Serial Interface Tx Configuration Port 0 */ s->hssi_config[0] = value; break; case 0x40: /* High-speed Serial Interface Tx Configuration Port 1 */ s->hssi_config[1] = value; if (((value >> 4) & 3) == 3) fprintf(stderr, "%s: Illegal active-data-links value\n", __FUNCTION__); break; case 0x42: /* High-speed Serial Interface Tx Mode */ s->hssi_config[2] = value & 0xbd; break; case 0x44: /* TV Display Configuration */ s->tv_config = value & 0xfe; break; case 0x46 ... 0x4c: /* TV Vertical Blanking Interval Data bits 0 */ s->tv_timing[(reg - 0x46) >> 1] = value; break; case 0x4e: /* VBI: Closed Caption / XDS Control / Status */ s->vbi = value; break; case 0x50: /* TV Horizontal Start Position */ s->tv_x = value; break; case 0x52: /* TV Vertical Start Position */ s->tv_y = value & 0x7f; break; case 0x54: /* TV Test Pattern Setting */ s->tv_test = value; break; case 0x56: /* TV Filter Setting */ s->tv_filter_config = value & 0xbf; break; case 0x58: /* TV Filter Coefficient Index */ s->tv_filter_idx = value & 0x1f; break; case 0x5a: /* TV Filter Coefficient Data */ if (s->tv_filter_idx < 0x20) s->tv_filter_coeff[s->tv_filter_idx ++] = value; break; case 0x60: /* Input YUV/RGB Translate Mode 0 */ s->yrc[0] = value & 0xb0; break; case 0x62: /* Input YUV/RGB Translate Mode 1 */ s->yrc[1] = value & 0x30; break; case 0x64: /* U Data Fix */ s->u = value & 0xff; break; case 0x66: /* V Data Fix */ s->v = value & 0xff; break; case 0x68: /* Display Mode */ if ((s->mode ^ value) & 3) s->invalidate = 1; s->mode = value & 0xb7; s->enable = value & 1; s->blank = (value >> 1) & 1; if (value & (1 << 4)) fprintf(stderr, "%s: Macrovision enable attempt!\n", __FUNCTION__); break; case 0x6a: /* Special Effects */ s->effect = value & 0xfb; break; case 0x6c: /* Input Window X Start Position 0 */ s->ix[0] &= 0x300; s->ix[0] |= (value << 0) & 0x0ff; break; case 0x6e: /* Input Window X Start Position 1 */ s->ix[0] &= 0x0ff; s->ix[0] |= (value << 8) & 0x300; break; case 0x70: /* Input Window Y Start Position 0 */ s->iy[0] &= 0x300; s->iy[0] |= (value << 0) & 0x0ff; break; case 0x72: /* Input Window Y Start Position 1 */ s->iy[0] &= 0x0ff; s->iy[0] |= (value << 8) & 0x300; break; case 0x74: /* Input Window X End Position 0 */ s->ix[1] &= 0x300; s->ix[1] |= (value << 0) & 0x0ff; break; case 0x76: /* Input Window X End Position 1 */ s->ix[1] &= 0x0ff; s->ix[1] |= (value << 8) & 0x300; break; case 0x78: /* Input Window Y End Position 0 */ s->iy[1] &= 0x300; s->iy[1] |= (value << 0) & 0x0ff; break; case 0x7a: /* Input Window Y End Position 1 */ s->iy[1] &= 0x0ff; s->iy[1] |= (value << 8) & 0x300; break; case 0x7c: /* Output Window X Start Position 0 */ s->ox[0] &= 0x300; s->ox[0] |= (value << 0) & 0x0ff; break; case 0x7e: /* Output Window X Start Position 1 */ s->ox[0] &= 0x0ff; s->ox[0] |= (value << 8) & 0x300; break; case 0x80: /* Output Window Y Start Position 0 */ s->oy[0] &= 0x300; s->oy[0] |= (value << 0) & 0x0ff; break; case 0x82: /* Output Window Y Start Position 1 */ s->oy[0] &= 0x0ff; s->oy[0] |= (value << 8) & 0x300; break; case 0x84: /* Output Window X End Position 0 */ s->ox[1] &= 0x300; s->ox[1] |= (value << 0) & 0x0ff; break; case 0x86: /* Output Window X End Position 1 */ s->ox[1] &= 0x0ff; s->ox[1] |= (value << 8) & 0x300; break; case 0x88: /* Output Window Y End Position 0 */ s->oy[1] &= 0x300; s->oy[1] |= (value << 0) & 0x0ff; break; case 0x8a: /* Output Window Y End Position 1 */ s->oy[1] &= 0x0ff; s->oy[1] |= (value << 8) & 0x300; break; case 0x8c: /* Input Data Format */ s->iformat = value & 0xf; s->bpp = blizzard_iformat_bpp[s->iformat]; if (!s->bpp) fprintf(stderr, "%s: Illegal or unsupported input format %x\n", __FUNCTION__, s->iformat); break; case 0x8e: /* Data Source Select */ s->source = value & 7; /* Currently all windows will be "destructive overlays". */ if ((!(s->effect & (1 << 3)) && (s->ix[0] != s->ox[0] || s->iy[0] != s->oy[0] || s->ix[1] != s->ox[1] || s->iy[1] != s->oy[1])) || !((s->ix[1] - s->ix[0]) & (s->iy[1] - s->iy[0]) & (s->ox[1] - s->ox[0]) & (s->oy[1] - s->oy[0]) & 1)) fprintf(stderr, "%s: Illegal input/output window positions\n", __FUNCTION__); blizzard_transfer_setup(s); break; case 0x90: /* Display Memory Data Port */ if (!s->data.len && !blizzard_transfer_setup(s)) break; *s->data.ptr ++ = value; if (-- s->data.len == 0) blizzard_window(s); break; case 0xa8: /* Border Color 0 */ s->border_r = value; break; case 0xaa: /* Border Color 1 */ s->border_g = value; break; case 0xac: /* Border Color 2 */ s->border_b = value; break; case 0xb4: /* Gamma Correction Enable */ s->gamma_config = value & 0x87; break; case 0xb6: /* Gamma Correction Table Index */ s->gamma_idx = value; break; case 0xb8: /* Gamma Correction Table Data */ s->gamma_lut[s->gamma_idx ++] = value; break; case 0xba: /* 3x3 Matrix Enable */ s->matrix_ena = value & 1; break; case 0xbc ... 0xde: /* Coefficient Registers */ s->matrix_coeff[(reg - 0xbc) >> 1] = value & ((reg & 2) ? 0x80 : 0xff); break; case 0xe0: /* 3x3 Matrix Red Offset */ s->matrix_r = value; break; case 0xe2: /* 3x3 Matrix Green Offset */ s->matrix_g = value; break; case 0xe4: /* 3x3 Matrix Blue Offset */ s->matrix_b = value; break; case 0xe6: /* Power-save */ s->pm = value & 0x83; if (value & s->mode & 1) fprintf(stderr, "%s: The display must be disabled before entering " "Standby Mode\n", __FUNCTION__); break; case 0xe8: /* Non-display Period Control / Status */ s->status = value & 0x1b; break; case 0xea: /* RGB Interface Control */ s->rgbgpio_dir = value & 0x8f; break; case 0xec: /* RGB Interface Status */ s->rgbgpio = value & 0xcf; break; case 0xee: /* General-purpose IO Pins Configuration */ s->gpio_dir = value; break; case 0xf0: /* General-purpose IO Pins Status / Control */ s->gpio = value; break; case 0xf2: /* GPIO Positive Edge Interrupt Trigger */ s->gpio_edge[0] = value; break; case 0xf4: /* GPIO Negative Edge Interrupt Trigger */ s->gpio_edge[1] = value; break; case 0xf6: /* GPIO Interrupt Status */ s->gpio_irq &= value; break; case 0xf8: /* GPIO Pull-down Control */ s->gpio_pdown = value; break; default: fprintf(stderr, "%s: unknown register %02x\n", __FUNCTION__, reg); break; }}uint16_t s1d13745_read(void *opaque, int dc){ struct blizzard_s *s = (struct blizzard_s *) opaque; uint16_t value = blizzard_reg_read(s, s->reg); if (s->swallow -- > 0) return 0; if (dc) s->reg ++; return value;}void s1d13745_write(void *opaque, int dc, uint16_t value){ struct blizzard_s *s = (struct blizzard_s *) opaque; if (s->swallow -- > 0) return; if (dc) { blizzard_reg_write(s, s->reg, value); if (s->reg != 0x90 && s->reg != 0x5a && s->reg != 0xb8) s->reg += 2; } else s->reg = value & 0xff;}void s1d13745_write_block(void *opaque, int dc, void *buf, size_t len, int pitch){ struct blizzard_s *s = (struct blizzard_s *) opaque; while (len > 0) { if (s->reg == 0x90 && dc && (s->data.len || blizzard_transfer_setup(s)) && len >= (s->data.len << 1)) { len -= s->data.len << 1; s->data.len = 0; s->data.data = buf; if (pitch) s->data.pitch = pitch; blizzard_window(s); s->data.data = s->data.buf; continue; } s1d13745_write(opaque, dc, *(uint16_t *) buf); len -= 2; buf += 2; } return;}static void blizzard_update_display(void *opaque){ struct blizzard_s *s = (struct blizzard_s *) opaque; int y, bypp, bypl, bwidth; uint8_t *src, *dst; if (!s->enable) return; if (s->x != s->state->width || s->y != s->state->height) { s->invalidate = 1; dpy_resize(s->state, s->x, s->y); } if (s->invalidate) { s->invalidate = 0; if (s->blank) { bypp = (s->state->depth + 7) >> 3; memset(s->state->data, 0, bypp * s->x * s->y); return; } s->mx[0] = 0; s->mx[1] = s->x; s->my[0] = 0; s->my[1] = s->y; } if (s->mx[1] <= s->mx[0]) return; bypp = (s->state->depth + 7) >> 3; bypl = bypp * s->x; bwidth = bypp * (s->mx[1] - s->mx[0]); y = s->my[0]; src = s->fb + bypl * y + bypp * s->mx[0]; dst = s->state->data + bypl * y + bypp * s->mx[0]; for (; y < s->my[1]; y ++, src += bypl, dst += bypl) memcpy(dst, src, bwidth); dpy_update(s->state, s->mx[0], s->my[0], s->mx[1] - s->mx[0], y - s->my[0]); s->mx[0] = s->x; s->mx[1] = 0; s->my[0] = s->y; s->my[1] = 0;}static void blizzard_screen_dump(void *opaque, const char *filename) { struct blizzard_s *s = (struct blizzard_s *) opaque; blizzard_update_display(opaque); if (s && s->state->data) ppm_save(filename, s->state->data, s->x, s->y, s->state->linesize);}#define DEPTH 8#include "blizzard_template.h"#define DEPTH 15#include "blizzard_template.h"#define DEPTH 16#include "blizzard_template.h"#define DEPTH 24#include "blizzard_template.h"#define DEPTH 32#include "blizzard_template.h"void *s1d13745_init(qemu_irq gpio_int, DisplayState *ds){ struct blizzard_s *s = (struct blizzard_s *) qemu_mallocz(sizeof(*s)); s->state = ds; s->fb = qemu_malloc(0x180000); switch (s->state->depth) { case 0: s->line_fn_tab[0] = s->line_fn_tab[1] = qemu_mallocz(sizeof(blizzard_fn_t) * 0x10); break; case 8: s->line_fn_tab[0] = blizzard_draw_fn_8; s->line_fn_tab[1] = blizzard_draw_fn_r_8; break; case 15: s->line_fn_tab[0] = blizzard_draw_fn_15; s->line_fn_tab[1] = blizzard_draw_fn_r_15; break; case 16: s->line_fn_tab[0] = blizzard_draw_fn_16; s->line_fn_tab[1] = blizzard_draw_fn_r_16; break; case 24: s->line_fn_tab[0] = blizzard_draw_fn_24; s->line_fn_tab[1] = blizzard_draw_fn_r_24; break; case 32: s->line_fn_tab[0] = blizzard_draw_fn_32; s->line_fn_tab[1] = blizzard_draw_fn_r_32; break; default: fprintf(stderr, "%s: Bad color depth\n", __FUNCTION__); exit(1); } blizzard_reset(s); graphic_console_init(s->state, blizzard_update_display, blizzard_invalidate_display, blizzard_screen_dump, NULL, s); return s;}⌨️ 快捷键说明
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