diff options
| -rw-r--r-- | hw/vga.c | 362 | ||||
| -rw-r--r-- | hw/vga_int.h | 3 | ||||
| -rw-r--r-- | hw/vga_template.h | 8 |
3 files changed, 198 insertions, 175 deletions
@@ -22,6 +22,7 @@ * THE SOFTWARE. */ #include "hw.h" +#include "vga.h" #include "console.h" #include "pc.h" #include "pci.h" @@ -160,9 +161,10 @@ static void vga_update_memory_access(VGACommonState *s) s->chain4_alias = NULL; - if ((s->sr[0x02] & 0xf) == 0xf && s->sr[0x04] & 0x08) { + if ((s->sr[VGA_SEQ_PLANE_WRITE] & VGA_SR02_ALL_PLANES) == + VGA_SR02_ALL_PLANES && s->sr[VGA_SEQ_MEMORY_MODE] & VGA_SR04_CHN_4M) { offset = 0; - switch ((s->gr[6] >> 2) & 3) { + switch ((s->gr[VGA_GFX_MISC] >> 2) & 3) { case 0: base = 0xa0000; size = 0x20000; @@ -223,22 +225,20 @@ static void vga_precise_update_retrace_info(VGACommonState *s) int64_t chars_per_sec; struct vga_precise_retrace *r = &s->retrace_info.precise; - htotal_chars = s->cr[0x00] + 5; - hretr_start_char = s->cr[0x04]; - hretr_skew_chars = (s->cr[0x05] >> 5) & 3; - hretr_end_char = s->cr[0x05] & 0x1f; + htotal_chars = s->cr[VGA_CRTC_H_TOTAL] + 5; + hretr_start_char = s->cr[VGA_CRTC_H_SYNC_START]; + hretr_skew_chars = (s->cr[VGA_CRTC_H_SYNC_END] >> 5) & 3; + hretr_end_char = s->cr[VGA_CRTC_H_SYNC_END] & 0x1f; - vtotal_lines = (s->cr[0x06] - | (((s->cr[0x07] & 1) | ((s->cr[0x07] >> 4) & 2)) << 8)) + 2 - ; - vretr_start_line = s->cr[0x10] - | ((((s->cr[0x07] >> 2) & 1) | ((s->cr[0x07] >> 6) & 2)) << 8) - ; - vretr_end_line = s->cr[0x11] & 0xf; + vtotal_lines = (s->cr[VGA_CRTC_V_TOTAL] | + (((s->cr[VGA_CRTC_OVERFLOW] & 1) | + ((s->cr[VGA_CRTC_OVERFLOW] >> 4) & 2)) << 8)) + 2; + vretr_start_line = s->cr[VGA_CRTC_V_SYNC_START] | + ((((s->cr[VGA_CRTC_OVERFLOW] >> 2) & 1) | + ((s->cr[VGA_CRTC_OVERFLOW] >> 6) & 2)) << 8); + vretr_end_line = s->cr[VGA_CRTC_V_SYNC_END] & 0xf; - - - clocking_mode = (s->sr[0x01] >> 3) & 1; + clocking_mode = (s->sr[VGA_SEQ_CLOCK_MODE] >> 3) & 1; clock_sel = (s->msr >> 2) & 3; dots = (s->msr & 1) ? 8 : 9; @@ -261,8 +261,8 @@ static void vga_precise_update_retrace_info(VGACommonState *s) r->htotal = htotal_chars; #if 0 - div2 = (s->cr[0x17] >> 2) & 1; - sldiv2 = (s->cr[0x17] >> 3) & 1; + div2 = (s->cr[VGA_CRTC_MODE] >> 2) & 1; + sldiv2 = (s->cr[VGA_CRTC_MODE] >> 3) & 1; printf ( "hz=%f\n" "htotal = %d\n" @@ -332,7 +332,7 @@ static uint8_t vga_dumb_retrace(VGACommonState *s) int vga_ioport_invalid(VGACommonState *s, uint32_t addr) { - if (s->msr & MSR_COLOR_EMULATION) { + if (s->msr & VGA_MIS_COLOR) { /* Color */ return (addr >= 0x3b0 && addr <= 0x3bf); } else { @@ -350,73 +350,74 @@ uint32_t vga_ioport_read(void *opaque, uint32_t addr) val = 0xff; } else { switch(addr) { - case 0x3c0: + case VGA_ATT_W: if (s->ar_flip_flop == 0) { val = s->ar_index; } else { val = 0; } break; - case 0x3c1: + case VGA_ATT_R: index = s->ar_index & 0x1f; - if (index < 21) + if (index < VGA_ATT_C) { val = s->ar[index]; - else + } else { val = 0; + } break; - case 0x3c2: + case VGA_MIS_W: val = s->st00; break; - case 0x3c4: + case VGA_SEQ_I: val = s->sr_index; break; - case 0x3c5: + case VGA_SEQ_D: val = s->sr[s->sr_index]; #ifdef DEBUG_VGA_REG printf("vga: read SR%x = 0x%02x\n", s->sr_index, val); #endif break; - case 0x3c7: + case VGA_PEL_IR: val = s->dac_state; break; - case 0x3c8: + case VGA_PEL_IW: val = s->dac_write_index; break; - case 0x3c9: + case VGA_PEL_D: val = s->palette[s->dac_read_index * 3 + s->dac_sub_index]; if (++s->dac_sub_index == 3) { s->dac_sub_index = 0; s->dac_read_index++; } break; - case 0x3ca: + case VGA_FTC_R: val = s->fcr; break; - case 0x3cc: + case VGA_MIS_R: val = s->msr; break; - case 0x3ce: + case VGA_GFX_I: val = s->gr_index; break; - case 0x3cf: + case VGA_GFX_D: val = s->gr[s->gr_index]; #ifdef DEBUG_VGA_REG printf("vga: read GR%x = 0x%02x\n", s->gr_index, val); #endif break; - case 0x3b4: - case 0x3d4: + case VGA_CRT_IM: + case VGA_CRT_IC: val = s->cr_index; break; - case 0x3b5: - case 0x3d5: + case VGA_CRT_DM: + case VGA_CRT_DC: val = s->cr[s->cr_index]; #ifdef DEBUG_VGA_REG printf("vga: read CR%x = 0x%02x\n", s->cr_index, val); #endif break; - case 0x3ba: - case 0x3da: + case VGA_IS1_RM: + case VGA_IS1_RC: /* just toggle to fool polling */ val = s->st01 = s->retrace(s); s->ar_flip_flop = 0; @@ -446,29 +447,29 @@ void vga_ioport_write(void *opaque, uint32_t addr, uint32_t val) #endif switch(addr) { - case 0x3c0: + case VGA_ATT_W: if (s->ar_flip_flop == 0) { val &= 0x3f; s->ar_index = val; } else { index = s->ar_index & 0x1f; switch(index) { - case 0x00 ... 0x0f: + case VGA_ATC_PALETTE0 ... VGA_ATC_PALETTEF: s->ar[index] = val & 0x3f; break; - case 0x10: + case VGA_ATC_MODE: s->ar[index] = val & ~0x10; break; - case 0x11: + case VGA_ATC_OVERSCAN: s->ar[index] = val; break; - case 0x12: + case VGA_ATC_PLANE_ENABLE: s->ar[index] = val & ~0xc0; break; - case 0x13: + case VGA_ATC_PEL: s->ar[index] = val & ~0xf0; break; - case 0x14: + case VGA_ATC_COLOR_PAGE: s->ar[index] = val & ~0xf0; break; default: @@ -477,32 +478,34 @@ void vga_ioport_write(void *opaque, uint32_t addr, uint32_t val) } s->ar_flip_flop ^= 1; break; - case 0x3c2: + case VGA_MIS_W: s->msr = val & ~0x10; s->update_retrace_info(s); break; - case 0x3c4: + case VGA_SEQ_I: s->sr_index = val & 7; break; - case 0x3c5: + case VGA_SEQ_D: #ifdef DEBUG_VGA_REG printf("vga: write SR%x = 0x%02x\n", s->sr_index, val); #endif s->sr[s->sr_index] = val & sr_mask[s->sr_index]; - if (s->sr_index == 1) s->update_retrace_info(s); + if (s->sr_index == VGA_SEQ_CLOCK_MODE) { + s->update_retrace_info(s); + } vga_update_memory_access(s); break; - case 0x3c7: + case VGA_PEL_IR: s->dac_read_index = val; s->dac_sub_index = 0; s->dac_state = 3; break; - case 0x3c8: + case VGA_PEL_IW: s->dac_write_index = val; s->dac_sub_index = 0; s->dac_state = 0; break; - case 0x3c9: + case VGA_PEL_D: s->dac_cache[s->dac_sub_index] = val; if (++s->dac_sub_index == 3) { memcpy(&s->palette[s->dac_write_index * 3], s->dac_cache, 3); @@ -510,48 +513,51 @@ void vga_ioport_write(void *opaque, uint32_t addr, uint32_t val) s->dac_write_index++; } break; - case 0x3ce: + case VGA_GFX_I: s->gr_index = val & 0x0f; break; - case 0x3cf: + case VGA_GFX_D: #ifdef DEBUG_VGA_REG printf("vga: write GR%x = 0x%02x\n", s->gr_index, val); #endif s->gr[s->gr_index] = val & gr_mask[s->gr_index]; vga_update_memory_access(s); break; - case 0x3b4: - case 0x3d4: + case VGA_CRT_IM: + case VGA_CRT_IC: s->cr_index = val; break; - case 0x3b5: - case 0x3d5: + case VGA_CRT_DM: + case VGA_CRT_DC: #ifdef DEBUG_VGA_REG printf("vga: write CR%x = 0x%02x\n", s->cr_index, val); #endif /* handle CR0-7 protection */ - if ((s->cr[0x11] & 0x80) && s->cr_index <= 7) { + if ((s->cr[VGA_CRTC_V_SYNC_END] & VGA_CR11_LOCK_CR0_CR7) && + s->cr_index <= VGA_CRTC_OVERFLOW) { /* can always write bit 4 of CR7 */ - if (s->cr_index == 7) - s->cr[7] = (s->cr[7] & ~0x10) | (val & 0x10); + if (s->cr_index == VGA_CRTC_OVERFLOW) { + s->cr[VGA_CRTC_OVERFLOW] = (s->cr[VGA_CRTC_OVERFLOW] & ~0x10) | + (val & 0x10); + } return; } s->cr[s->cr_index] = val; switch(s->cr_index) { - case 0x00: - case 0x04: - case 0x05: - case 0x06: - case 0x07: - case 0x11: - case 0x17: + case VGA_CRTC_H_TOTAL: + case VGA_CRTC_H_SYNC_START: + case VGA_CRTC_H_SYNC_END: + case VGA_CRTC_V_TOTAL: + case VGA_CRTC_OVERFLOW: + case VGA_CRTC_V_SYNC_END: + case VGA_CRTC_MODE: s->update_retrace_info(s); break; } break; - case 0x3ba: - case 0x3da: + case VGA_IS1_RM: + case VGA_IS1_RC: s->fcr = val & 0x10; break; } @@ -681,31 +687,37 @@ static void vbe_ioport_write_data(void *opaque, uint32_t addr, uint32_t val) /* we initialize the VGA graphic mode (should be done in BIOS) */ - s->gr[0x06] = (s->gr[0x06] & ~0x0c) | 0x05; /* graphic mode + memory map 1 */ - s->cr[0x17] |= 3; /* no CGA modes */ - s->cr[0x13] = s->vbe_line_offset >> 3; + /* graphic mode + memory map 1 */ + s->gr[VGA_GFX_MISC] = (s->gr[VGA_GFX_MISC] & ~0x0c) | 0x04 | + VGA_GR06_GRAPHICS_MODE; + s->cr[VGA_CRTC_MODE] |= 3; /* no CGA modes */ + s->cr[VGA_CRTC_OFFSET] = s->vbe_line_offset >> 3; /* width */ - s->cr[0x01] = (s->vbe_regs[VBE_DISPI_INDEX_XRES] >> 3) - 1; + s->cr[VGA_CRTC_H_DISP] = + (s->vbe_regs[VBE_DISPI_INDEX_XRES] >> 3) - 1; /* height (only meaningful if < 1024) */ h = s->vbe_regs[VBE_DISPI_INDEX_YRES] - 1; - s->cr[0x12] = h; - s->cr[0x07] = (s->cr[0x07] & ~0x42) | + s->cr[VGA_CRTC_V_DISP_END] = h; + s->cr[VGA_CRTC_OVERFLOW] = (s->cr[VGA_CRTC_OVERFLOW] & ~0x42) | ((h >> 7) & 0x02) | ((h >> 3) & 0x40); /* line compare to 1023 */ - s->cr[0x18] = 0xff; - s->cr[0x07] |= 0x10; - s->cr[0x09] |= 0x40; + s->cr[VGA_CRTC_LINE_COMPARE] = 0xff; + s->cr[VGA_CRTC_OVERFLOW] |= 0x10; + s->cr[VGA_CRTC_MAX_SCAN] |= 0x40; if (s->vbe_regs[VBE_DISPI_INDEX_BPP] == 4) { shift_control = 0; - s->sr[0x01] &= ~8; /* no double line */ + s->sr[VGA_SEQ_CLOCK_MODE] &= ~8; /* no double line */ } else { shift_control = 2; - s->sr[4] |= 0x08; /* set chain 4 mode */ - s->sr[2] |= 0x0f; /* activate all planes */ + /* set chain 4 mode */ + s->sr[VGA_SEQ_MEMORY_MODE] |= VGA_SR04_CHN_4M; + /* activate all planes */ + s->sr[VGA_SEQ_PLANE_WRITE] |= VGA_SR02_ALL_PLANES; } - s->gr[0x05] = (s->gr[0x05] & ~0x60) | (shift_control << 5); - s->cr[0x09] &= ~0x9f; /* no double scan */ + s->gr[VGA_GFX_MODE] = (s->gr[VGA_GFX_MODE] & ~0x60) | + (shift_control << 5); + s->cr[VGA_CRTC_MAX_SCAN] &= ~0x9f; /* no double scan */ } else { /* XXX: the bios should do that */ s->bank_offset = 0; @@ -762,7 +774,7 @@ uint32_t vga_mem_readb(VGACommonState *s, target_phys_addr_t addr) uint32_t ret; /* convert to VGA memory offset */ - memory_map_mode = (s->gr[6] >> 2) & 3; + memory_map_mode = (s->gr[VGA_GFX_MISC] >> 2) & 3; addr &= 0x1ffff; switch(memory_map_mode) { case 0: @@ -785,24 +797,25 @@ uint32_t vga_mem_readb(VGACommonState *s, target_phys_addr_t addr) break; } - if (s->sr[4] & 0x08) { + if (s->sr[VGA_SEQ_MEMORY_MODE] & VGA_SR04_CHN_4M) { /* chain 4 mode : simplest access */ ret = s->vram_ptr[addr]; - } else if (s->gr[5] & 0x10) { + } else if (s->gr[VGA_GFX_MODE] & 0x10) { /* odd/even mode (aka text mode mapping) */ - plane = (s->gr[4] & 2) | (addr & 1); + plane = (s->gr[VGA_GFX_PLANE_READ] & 2) | (addr & 1); ret = s->vram_ptr[((addr & ~1) << 1) | plane]; } else { /* standard VGA latched access */ s->latch = ((uint32_t *)s->vram_ptr)[addr]; - if (!(s->gr[5] & 0x08)) { + if (!(s->gr[VGA_GFX_MODE] & 0x08)) { /* read mode 0 */ - plane = s->gr[4]; + plane = s->gr[VGA_GFX_PLANE_READ]; ret = GET_PLANE(s->latch, plane); } else { /* read mode 1 */ - ret = (s->latch ^ mask16[s->gr[2]]) & mask16[s->gr[7]]; + ret = (s->latch ^ mask16[s->gr[VGA_GFX_COMPARE_VALUE]]) & + mask16[s->gr[VGA_GFX_COMPARE_MASK]]; ret |= ret >> 16; ret |= ret >> 8; ret = (~ret) & 0xff; @@ -821,7 +834,7 @@ void vga_mem_writeb(VGACommonState *s, target_phys_addr_t addr, uint32_t val) printf("vga: [0x" TARGET_FMT_plx "] = 0x%02x\n", addr, val); #endif /* convert to VGA memory offset */ - memory_map_mode = (s->gr[6] >> 2) & 3; + memory_map_mode = (s->gr[VGA_GFX_MISC] >> 2) & 3; addr &= 0x1ffff; switch(memory_map_mode) { case 0: @@ -844,11 +857,11 @@ void vga_mem_writeb(VGACommonState *s, target_phys_addr_t addr, uint32_t val) break; } - if (s->sr[4] & 0x08) { + if (s->sr[VGA_SEQ_MEMORY_MODE] & VGA_SR04_CHN_4M) { /* chain 4 mode : simplest access */ plane = addr & 3; mask = (1 << plane); - if (s->sr[2] & mask) { + if (s->sr[VGA_SEQ_PLANE_WRITE] & mask) { s->vram_ptr[addr] = val; #ifdef DEBUG_VGA_MEM printf("vga: chain4: [0x" TARGET_FMT_plx "]\n", addr); @@ -856,11 +869,11 @@ void vga_mem_writeb(VGACommonState *s, target_phys_addr_t addr, uint32_t val) s->plane_updated |= mask; /* only used to detect font change */ memory_region_set_dirty(&s->vram, addr, 1); } - } else if (s->gr[5] & 0x10) { + } else if (s->gr[VGA_GFX_MODE] & 0x10) { /* odd/even mode (aka text mode mapping) */ - plane = (s->gr[4] & 2) | (addr & 1); + plane = (s->gr[VGA_GFX_PLANE_READ] & 2) | (addr & 1); mask = (1 << plane); - if (s->sr[2] & mask) { + if (s->sr[VGA_SEQ_PLANE_WRITE] & mask) { addr = ((addr & ~1) << 1) | plane; s->vram_ptr[addr] = val; #ifdef DEBUG_VGA_MEM @@ -871,40 +884,41 @@ void vga_mem_writeb(VGACommonState *s, target_phys_addr_t addr, uint32_t val) } } else { /* standard VGA latched access */ - write_mode = s->gr[5] & 3; + write_mode = s->gr[VGA_GFX_MODE] & 3; switch(write_mode) { default: case 0: /* rotate */ - b = s->gr[3] & 7; + b = s->gr[VGA_GFX_DATA_ROTATE] & 7; val = ((val >> b) | (val << (8 - b))) & 0xff; val |= val << 8; val |= val << 16; /* apply set/reset mask */ - set_mask = mask16[s->gr[1]]; - val = (val & ~set_mask) | (mask16[s->gr[0]] & set_mask); - bit_mask = s->gr[8]; + set_mask = mask16[s->gr[VGA_GFX_SR_ENABLE]]; + val = (val & ~set_mask) | + (mask16[s->gr[VGA_GFX_SR_VALUE]] & set_mask); + bit_mask = s->gr[VGA_GFX_BIT_MASK]; break; case 1: val = s->latch; goto do_write; case 2: val = mask16[val & 0x0f]; - bit_mask = s->gr[8]; + bit_mask = s->gr[VGA_GFX_BIT_MASK]; break; case 3: /* rotate */ - b = s->gr[3] & 7; + b = s->gr[VGA_GFX_DATA_ROTATE] & 7; val = (val >> b) | (val << (8 - b)); - bit_mask = s->gr[8] & val; - val = mask16[s->gr[0]]; + bit_mask = s->gr[VGA_GFX_BIT_MASK] & val; + val = mask16[s->gr[VGA_GFX_SR_VALUE]]; break; } /* apply logical operation */ - func_select = s->gr[3] >> 3; + func_select = s->gr[VGA_GFX_DATA_ROTATE] >> 3; switch(func_select) { case 0: default: @@ -931,7 +945,7 @@ void vga_mem_writeb(VGACommonState *s, target_phys_addr_t addr, uint32_t val) do_write: /* mask data according to sr[2] */ - mask = s->sr[2]; + mask = s->sr[VGA_SEQ_PLANE_WRITE]; s->plane_updated |= mask; /* only used to detect font change */ write_mask = mask16[mask]; ((uint32_t *)s->vram_ptr)[addr] = @@ -1045,10 +1059,11 @@ static int update_palette16(VGACommonState *s) palette = s->last_palette; for(i = 0; i < 16; i++) { v = s->ar[i]; - if (s->ar[0x10] & 0x80) - v = ((s->ar[0x14] & 0xf) << 4) | (v & 0xf); - else - v = ((s->ar[0x14] & 0xc) << 4) | (v & 0x3f); + if (s->ar[VGA_ATC_MODE] & 0x80) { + v = ((s->ar[VGA_ATC_COLOR_PAGE] & 0xf) << 4) | (v & 0xf); + } else { + v = ((s->ar[VGA_ATC_COLOR_PAGE] & 0xc) << 4) | (v & 0x3f); + } v = v * 3; col = s->rgb_to_pixel(c6_to_8(s->palette[v]), c6_to_8(s->palette[v + 1]), @@ -1104,16 +1119,17 @@ static void vga_get_offsets(VGACommonState *s, #endif { /* compute line_offset in bytes */ - line_offset = s->cr[0x13]; + line_offset = s->cr[VGA_CRTC_OFFSET]; line_offset <<= 3; /* starting address */ - start_addr = s->cr[0x0d] | (s->cr[0x0c] << 8); + start_addr = s->cr[VGA_CRTC_START_LO] | + (s->cr[VGA_CRTC_START_HI] << 8); /* line compare */ - line_compare = s->cr[0x18] | - ((s->cr[0x07] & 0x10) << 4) | - ((s->cr[0x09] & 0x40) << 3); + line_compare = s->cr[VGA_CRTC_LINE_COMPARE] | + ((s->cr[VGA_CRTC_OVERFLOW] & 0x10) << 4) | + ((s->cr[VGA_CRTC_MAX_SCAN] & 0x40) << 3); } *pline_offset = line_offset; *pstart_addr = start_addr; @@ -1216,20 +1232,22 @@ static void vga_get_text_resolution(VGACommonState *s, int *pwidth, int *pheight int width, cwidth, height, cheight; /* total width & height */ - cheight = (s->cr[9] & 0x1f) + 1; + cheight = (s->cr[VGA_CRTC_MAX_SCAN] & 0x1f) + 1; cwidth = 8; - if (!(s->sr[1] & 0x01)) + if (!(s->sr[VGA_SEQ_CLOCK_MODE] & VGA_SR01_CHAR_CLK_8DOTS)) { cwidth = 9; - if (s->sr[1] & 0x08) + } + if (s->sr[VGA_SEQ_CLOCK_MODE] & 0x08) { cwidth = 16; /* NOTE: no 18 pixel wide */ - width = (s->cr[0x01] + 1); - if (s->cr[0x06] == 100) { + } + width = (s->cr[VGA_CRTC_H_DISP] + 1); + if (s->cr[VGA_CRTC_V_TOTAL] == 100) { /* ugly hack for CGA 160x100x16 - explain me the logic */ height = 100; } else { - height = s->cr[0x12] | - ((s->cr[0x07] & 0x02) << 7) | - ((s->cr[0x07] & 0x40) << 3); + height = s->cr[VGA_CRTC_V_DISP_END] | + ((s->cr[VGA_CRTC_OVERFLOW] & 0x02) << 7) | + ((s->cr[VGA_CRTC_OVERFLOW] & 0x40) << 3); height = (height + 1) / cheight; } @@ -1273,7 +1291,7 @@ static void vga_draw_text(VGACommonState *s, int full_update) vga_draw_glyph9_func *vga_draw_glyph9; /* compute font data address (in plane 2) */ - v = s->sr[3]; + v = s->sr[VGA_SEQ_CHARACTER_MAP]; offset = (((v >> 4) & 1) | ((v << 1) & 6)) * 8192 * 4 + 2; if (offset != s->font_offsets[0]) { s->font_offsets[0] = offset; @@ -1321,10 +1339,11 @@ static void vga_draw_text(VGACommonState *s, int full_update) palette = s->last_palette; x_incr = cw * ((ds_get_bits_per_pixel(s->ds) + 7) >> 3); - cursor_offset = ((s->cr[0x0e] << 8) | s->cr[0x0f]) - s->start_addr; + cursor_offset = ((s->cr[VGA_CRTC_CURSOR_HI] << 8) | + s->cr[VGA_CRTC_CURSOR_LO]) - s->start_addr; if (cursor_offset != s->cursor_offset || - s->cr[0xa] != s->cursor_start || - s->cr[0xb] != s->cursor_end) { + s->cr[VGA_CRTC_CURSOR_START] != s->cursor_start || + s->cr[VGA_CRTC_CURSOR_END] != s->cursor_end) { /* if the cursor position changed, we update the old and new chars */ if (s->cursor_offset < CH_ATTR_SIZE) @@ -1332,8 +1351,8 @@ static void vga_draw_text(VGACommonState *s, int full_update) if (cursor_offset < CH_ATTR_SIZE) s->last_ch_attr[cursor_offset] = -1; s->cursor_offset = cursor_offset; - s->cursor_start = s->cr[0xa]; - s->cursor_end = s->cr[0xb]; + s->cursor_start = s->cr[VGA_CRTC_CURSOR_START]; + s->cursor_end = s->cr[VGA_CRTC_CURSOR_END]; } cursor_ptr = s->vram_ptr + (s->start_addr + cursor_offset) * 4; @@ -1378,17 +1397,19 @@ static void vga_draw_text(VGACommonState *s, int full_update) font_ptr, cheight, fgcol, bgcol); } else { dup9 = 0; - if (ch >= 0xb0 && ch <= 0xdf && (s->ar[0x10] & 0x04)) + if (ch >= 0xb0 && ch <= 0xdf && + (s->ar[VGA_ATC_MODE] & 0x04)) { dup9 = 1; + } vga_draw_glyph9(d1, linesize, font_ptr, cheight, fgcol, bgcol, dup9); } if (src == cursor_ptr && - !(s->cr[0x0a] & 0x20)) { + !(s->cr[VGA_CRTC_CURSOR_START] & 0x20)) { int line_start, line_last, h; /* draw the cursor */ - line_start = s->cr[0x0a] & 0x1f; - line_last = s->cr[0x0b] & 0x1f; + line_start = s->cr[VGA_CRTC_CURSOR_START] & 0x1f; + line_last = s->cr[VGA_CRTC_CURSOR_END] & 0x1f; /* XXX: check that */ if (line_last > cheight - 1) line_last = cheight - 1; @@ -1544,10 +1565,10 @@ static void vga_get_resolution(VGACommonState *s, int *pwidth, int *pheight) } else #endif { - width = (s->cr[0x01] + 1) * 8; - height = s->cr[0x12] | - ((s->cr[0x07] & 0x02) << 7) | - ((s->cr[0x07] & 0x40) << 3); + width = (s->cr[VGA_CRTC_H_DISP] + 1) * 8; + height = s->cr[VGA_CRTC_V_DISP_END] | + ((s->cr[VGA_CRTC_OVERFLOW] & 0x02) << 7) | + ((s->cr[VGA_CRTC_OVERFLOW] & 0x40) << 3); height = (height + 1); } *pwidth = width; @@ -1602,10 +1623,11 @@ static void vga_draw_graphic(VGACommonState *s, int full_update) s->get_resolution(s, &width, &height); disp_width = width; - shift_control = (s->gr[0x05] >> 5) & 3; - double_scan = (s->cr[0x09] >> 7); + shift_control = (s->gr[VGA_GFX_MODE] >> 5) & 3; + double_scan = (s->cr[VGA_CRTC_MAX_SCAN] >> 7); if (shift_control != 1) { - multi_scan = (((s->cr[0x09] & 0x1f) + 1) << double_scan) - 1; + multi_scan = (((s->cr[VGA_CRTC_MAX_SCAN] & 0x1f) + 1) << double_scan) + - 1; } else { /* in CGA modes, multi_scan is ignored */ /* XXX: is it correct ? */ @@ -1620,11 +1642,11 @@ static void vga_draw_graphic(VGACommonState *s, int full_update) } if (shift_control == 0) { - if (s->sr[0x01] & 8) { + if (s->sr[VGA_SEQ_CLOCK_MODE] & 8) { disp_width <<= 1; } } else if (shift_control == 1) { - if (s->sr[0x01] & 8) { + if (s->sr[VGA_SEQ_CLOCK_MODE] & 8) { disp_width <<= 1; } } @@ -1668,7 +1690,7 @@ static void vga_draw_graphic(VGACommonState *s, int full_update) if (shift_control == 0) { full_update |= update_palette16(s); - if (s->sr[0x01] & 8) { + if (s->sr[VGA_SEQ_CLOCK_MODE] & 8) { v = VGA_DRAW_LINE4D2; } else { v = VGA_DRAW_LINE4; @@ -1676,7 +1698,7 @@ static void vga_draw_graphic(VGACommonState *s, int full_update) bits = 4; } else if (shift_control == 1) { full_update |= update_palette16(s); - if (s->sr[0x01] & 8) { + if (s->sr[VGA_SEQ_CLOCK_MODE] & 8) { v = VGA_DRAW_LINE2D2; } else { v = VGA_DRAW_LINE2; @@ -1721,7 +1743,8 @@ static void vga_draw_graphic(VGACommonState *s, int full_update) line_offset = s->line_offset; #if 0 printf("w=%d h=%d v=%d line_offset=%d cr[0x09]=0x%02x cr[0x17]=0x%02x linecmp=%d sr[0x01]=0x%02x\n", - width, height, v, line_offset, s->cr[9], s->cr[0x17], s->line_compare, s->sr[0x01]); + width, height, v, line_offset, s->cr[9], s->cr[VGA_CRTC_MODE], + s->line_compare, s->sr[VGA_SEQ_CLOCK_MODE]); #endif addr1 = (s->start_addr * 4); bwidth = (width * bits + 7) / 8; @@ -1733,13 +1756,13 @@ static void vga_draw_graphic(VGACommonState *s, int full_update) y1 = 0; for(y = 0; y < height; y++) { addr = addr1; - if (!(s->cr[0x17] & 1)) { + if (!(s->cr[VGA_CRTC_MODE] & 1)) { int shift; /* CGA compatibility handling */ - shift = 14 + ((s->cr[0x17] >> 6) & 1); + shift = 14 + ((s->cr[VGA_CRTC_MODE] >> 6) & 1); addr = (addr & ~(1 << shift)) | ((y1 & 1) << shift); } - if (!(s->cr[0x17] & 2)) { + if (!(s->cr[VGA_CRTC_MODE] & 2)) { addr = (addr & ~0x8000) | ((y1 & 2) << 14); } page0 = addr; @@ -1769,7 +1792,7 @@ static void vga_draw_graphic(VGACommonState *s, int full_update) } } if (!multi_run) { - mask = (s->cr[0x17] & 3) ^ 3; + mask = (s->cr[VGA_CRTC_MODE] & 3) ^ 3; if ((y1 & mask) == mask) addr1 += line_offset; y1++; @@ -1841,7 +1864,7 @@ static void vga_update_display(void *opaque) if (!(s->ar_index & 0x20)) { graphic_mode = GMODE_BLANK; } else { - graphic_mode = s->gr[6] & 1; + graphic_mode = s->gr[VGA_GFX_MISC] & VGA_GR06_GRAPHICS_MODE; } if (graphic_mode != s->graphic_mode) { s->graphic_mode = graphic_mode; @@ -1959,7 +1982,7 @@ static void vga_update_text(void *opaque, console_ch_t *chardata) if (!(s->ar_index & 0x20)) { graphic_mode = GMODE_BLANK; } else { - graphic_mode = s->gr[6] & 1; + graphic_mode = s->gr[VGA_GFX_MISC] & VGA_GR06_GRAPHICS_MODE; } if (graphic_mode != s->graphic_mode) { s->graphic_mode = graphic_mode; @@ -1976,20 +1999,22 @@ static void vga_update_text(void *opaque, console_ch_t *chardata) full_update |= update_basic_params(s); /* total width & height */ - cheight = (s->cr[9] & 0x1f) + 1; + cheight = (s->cr[VGA_CRTC_MAX_SCAN] & 0x1f) + 1; cw = 8; - if (!(s->sr[1] & 0x01)) + if (!(s->sr[VGA_SEQ_CLOCK_MODE] & VGA_SR01_CHAR_CLK_8DOTS)) { cw = 9; - if (s->sr[1] & 0x08) + } + if (s->sr[VGA_SEQ_CLOCK_MODE] & 0x08) { cw = 16; /* NOTE: no 18 pixel wide */ - width = (s->cr[0x01] + 1); - if (s->cr[0x06] == 100) { + } + width = (s->cr[VGA_CRTC_H_DISP] + 1); + if (s->cr[VGA_CRTC_V_TOTAL] == 100) { /* ugly hack for CGA 160x100x16 - explain me the logic */ height = 100; } else { - height = s->cr[0x12] | - ((s->cr[0x07] & 0x02) << 7) | - ((s->cr[0x07] & 0x40) << 3); + height = s->cr[VGA_CRTC_V_DISP_END] | + ((s->cr[VGA_CRTC_OVERFLOW] & 0x02) << 7) | + ((s->cr[VGA_CRTC_OVERFLOW] & 0x40) << 3); height = (height + 1) / cheight; } @@ -2018,11 +2043,12 @@ static void vga_update_text(void *opaque, console_ch_t *chardata) } /* Update "hardware" cursor */ - cursor_offset = ((s->cr[0x0e] << 8) | s->cr[0x0f]) - s->start_addr; + cursor_offset = ((s->cr[VGA_CRTC_CURSOR_HI] << 8) | + s->cr[VGA_CRTC_CURSOR_LO]) - s->start_addr; if (cursor_offset != s->cursor_offset || - s->cr[0xa] != s->cursor_start || - s->cr[0xb] != s->cursor_end || full_update) { - cursor_visible = !(s->cr[0xa] & 0x20); + s->cr[VGA_CRTC_CURSOR_START] != s->cursor_start || + s->cr[VGA_CRTC_CURSOR_END] != s->cursor_end || full_update) { + cursor_visible = !(s->cr[VGA_CRTC_CURSOR_START] & 0x20); if (cursor_visible && cursor_offset < size && cursor_offset >= 0) dpy_cursor(s->ds, TEXTMODE_X(cursor_offset), @@ -2030,8 +2056,8 @@ static void vga_update_text(void *opaque, console_ch_t *chardata) else dpy_cursor(s->ds, -1, -1); s->cursor_offset = cursor_offset; - s->cursor_start = s->cr[0xa]; - s->cursor_end = s->cr[0xb]; + s->cursor_start = s->cr[VGA_CRTC_CURSOR_START]; + s->cursor_end = s->cr[VGA_CRTC_CURSOR_END]; } src = (uint32_t *) s->vram_ptr + s->start_addr; diff --git a/hw/vga_int.h b/hw/vga_int.h index f755582..7685b2b 100644 --- a/hw/vga_int.h +++ b/hw/vga_int.h @@ -25,9 +25,6 @@ #include <hw/hw.h> #include "memory.h" -#define MSR_COLOR_EMULATION 0x01 -#define MSR_PAGE_SELECT 0x20 - #define ST01_V_RETRACE 0x08 #define ST01_DISP_ENABLE 0x01 diff --git a/hw/vga_template.h b/hw/vga_template.h index 7150573..f6f6a01 100644 --- a/hw/vga_template.h +++ b/hw/vga_template.h @@ -161,7 +161,7 @@ static void glue(vga_draw_line2_, DEPTH)(VGACommonState *s1, uint8_t *d, int x; palette = s1->last_palette; - plane_mask = mask16[s1->ar[0x12] & 0xf]; + plane_mask = mask16[s1->ar[VGA_ATC_PLANE_ENABLE] & 0xf]; width >>= 3; for(x = 0; x < width; x++) { data = ((uint32_t *)s)[0]; @@ -203,7 +203,7 @@ static void glue(vga_draw_line2d2_, DEPTH)(VGACommonState *s1, uint8_t *d, int x; palette = s1->last_palette; - plane_mask = mask16[s1->ar[0x12] & 0xf]; + plane_mask = mask16[s1->ar[VGA_ATC_PLANE_ENABLE] & 0xf]; width >>= 3; for(x = 0; x < width; x++) { data = ((uint32_t *)s)[0]; @@ -236,7 +236,7 @@ static void glue(vga_draw_line4_, DEPTH)(VGACommonState *s1, uint8_t *d, int x; palette = s1->last_palette; - plane_mask = mask16[s1->ar[0x12] & 0xf]; + plane_mask = mask16[s1->ar[VGA_ATC_PLANE_ENABLE] & 0xf]; width >>= 3; for(x = 0; x < width; x++) { data = ((uint32_t *)s)[0]; @@ -268,7 +268,7 @@ static void glue(vga_draw_line4d2_, DEPTH)(VGACommonState *s1, uint8_t *d, int x; palette = s1->last_palette; - plane_mask = mask16[s1->ar[0x12] & 0xf]; + plane_mask = mask16[s1->ar[VGA_ATC_PLANE_ENABLE] & 0xf]; width >>= 3; for(x = 0; x < width; x++) { data = ((uint32_t *)s)[0]; |