文字を出力させるためにbootpack.cを修正ます。
今回はAを出します。
void io_hlt(void); void io_cli(void); void io_out8(int port, int data); int io_load_eflags(void); void io_store_eflags(int eflags); void init_palette(void); void set_palette(int start, int end, unsigned char *rgd); void boxfill8(unsigned char *vram, int xsize, unsigned char c, int x0, int y0, int x1, int y1); void init_screen(char *vram, int x, int y); void putfont8(char *vram, int xsize, int x, int y, char c, char *font); #define COL8_000000 0 #define COL8_FF0000 1 #define COL8_00FF00 2 #define COL8_FFFF00 3 #define COL8_0000FF 4 #define COL8_FF00FF 5 #define COL8_00FFFF 6 #define COL8_FFFFFF 7 #define COL8_C6C6C6 8 #define COL8_840000 9 #define COL8_008400 10 #define COL8_848400 11 #define COL8_000084 12 #define COL8_840084 13 #define COL8_008484 14 #define COL8_848484 15 struct BOOTINFO { char cyls, leds, vmode, reserve; short scrnx, scrny; char *vram; }; void HariMain(void) { struct BOOTINFO *binfo = (struct BOOTINFO *) 0x0ff0; static char font_A[16] = { 0x00, 0x18, 0x18, 0x18, 0x24, 0x24, 0x24, 0x24, 0x7e, 0x42, 0x42, 0xe7, 0x00, 0x00 }; init_palette(); init_screen(binfo->vram, binfo->scrnx, binfo->scrny); putfont8(binfo->vram, binfo->scrnx, 10, 10, COL8_FFFFFF, font_A); for (;;) { io_hlt(); } } void init_palette(void) { static unsigned char table_rgb[16 * 3] = { 0x00, 0x00, 0x00, /* 0:black */ 0xff, 0x00, 0x00, /* 1:light red */ 0x00, 0xff, 0x00, /* 2:light green */ 0xff, 0xff, 0x00, /* 3:light yellow */ 0x00, 0x00, 0xff, /* 4:light blue */ 0xff, 0x00, 0xff, /* 5:light puple */ 0x00, 0xff, 0xff, /* 6:light sky blue */ 0xff, 0xff, 0xff, /* 7:white */ 0xc6, 0xc6, 0xc6, /* 8:light grey */ 0x84, 0x00, 0x00, /* 9:dark green */ 0x00, 0x84, 0x00, /* 10:dark green */ 0x84, 0x84, 0x00, /* 11:dark yellow */ 0x00, 0x00, 0x84, /* 12:dark blue */ 0x84, 0x00, 0x84, /* 13:dark puple */ 0x00, 0x84, 0x84, /* 14:dark sky blue */ 0x84, 0x84, 0x84 /* 15:dark grey */ }; set_palette(0, 15, table_rgb); return; } void set_palette(int start, int end, unsigned char *rgb) { int i, eflags; eflags = io_load_eflags(); io_cli(); io_out8(0x03c8, start); for (i = start; i <= end; i++) { io_out8(0x03c9, rgb[0] / 4); io_out8(0x03c9, rgb[1] / 4); io_out8(0x03c9, rgb[2] / 4); rgb += 3; } io_store_eflags(eflags); return; } void boxfill8(unsigned char *vram, int xsize, unsigned char c, int x0, int y0, int x1, int y1) { int x, y; for (y= y0; y <= y1; y++) { for (x = x0; x <= x1; x++) vram[y * xsize + x] = c; } return; } void init_screen(char *vram, int x, int y) { boxfill8(vram, x, COL8_008484, 0, 0, x - 1, y - 29); boxfill8(vram, x, COL8_C6C6C6, 0, y - 28, x - 1, y - 28); boxfill8(vram, x, COL8_FFFFFF, 0, y - 27, x - 1, y - 27); boxfill8(vram, x, COL8_C6C6C6, 0, y - 26, x - 1, y - 1); boxfill8(vram, x, COL8_FFFFFF, 3, y - 24, 59, y - 24); boxfill8(vram, x, COL8_FFFFFF, 2, y - 24, 2, y - 4); boxfill8(vram, x, COL8_848484, 3, y - 4, 59, y - 4); boxfill8(vram, x, COL8_848484, 59, y - 23, 59, y - 5); boxfill8(vram, x, COL8_000000, 2, y - 3, 59, y - 3); boxfill8(vram, x, COL8_000000, 60, y - 24, 60, y - 3); boxfill8(vram, x, COL8_848484, x - 47, y - 24, x - 4, y - 24); boxfill8(vram, x, COL8_848484, x - 47, y - 23, x - 47, y - 4); boxfill8(vram, x, COL8_FFFFFF, x - 47, y - 3, x - 4, y - 3); boxfill8(vram, x, COL8_FFFFFF, x - 3, y - 24, x - 3, y - 3); return; } void putfont8(char *vram, int xsize, int x, int y, char c, char *font) { int i; char *p, d; for (i = 0; i < 16; i++) { p = vram + (y + i) * xsize + x; d = font[i]; if ((d & 0x80) != 0) { p[0] = c; } if ((d & 0x40) != 0) { p[1] = c; } if ((d & 0x20) != 0) { p[2] = c; } if ((d & 0x10) != 0) { p[3] = c; } if ((d & 0x08) != 0) { p[4] = c; } if ((d & 0x04) != 0) { p[5] = c; } if ((d & 0x02) != 0) { p[6] = c; } if ((d & 0x01) != 0) { p[7] = c; } } return ; }
make runしてAが出ました!
やりました!
つぎは文字を大量に羅列したいのでhankaku.txtというファイルをします。これは大きなファイルのでここに記載しません。githubからダウンロードしてきてください。
また、hankaku.txtをhankaku.objに変更するためにMakefileを書き換えます。
TOOLPATH = ..\..\z_tools\\ INCPATH = ..\..\z_tools\haribote\\ MAKE = $(TOOLPATH)make.exe -r NASK = $(TOOLPATH)nask.exe CC1 = $(TOOLPATH)cc1.exe -I$(INCPATH) -Os -Wall -quiet GAS2NASK = $(TOOLPATH)gas2nask.exe -a OBJ2BIM = $(TOOLPATH)obj2bim.exe MAKEFONT = $(TOOLPATH)makefont.exe BIN2OBJ = $(TOOLPATH)bin2obj BIM2HRB = $(TOOLPATH)bim2hrb.exe RULEFILE = $(TOOLPATH)haribote\haribote.rul EDIMG = $(TOOLPATH)edimg.exe IMGTOL = $(TOOLPATH)imgtol.com COPY = cmd.exe /C copy DEL = rm -f # default operation default: $(MAKE) img # file making rule ipl10.bin : ipl10.nas Makefile $(NASK) ipl10.nas ipl10.bin ipl10.lst asmhead.bin : asmhead.nas Makefile $(NASK) asmhead.nas asmhead.bin asmhead.lst bootpack.gas : bootpack.c Makefile $(CC1) -o bootpack.gas bootpack.c bootpack.nas : bootpack.gas Makefile $(GAS2NASK) bootpack.gas bootpack.nas bootpack.obj : bootpack.nas Makefile $(NASK) bootpack.nas bootpack.obj bootpack.lst naskfunc.obj : naskfunc.nas Makefile $(NASK) naskfunc.nas naskfunc.obj naskfunc.lst hankaku.bin : hankaku.txt Makefile $(MAKEFONT) hankaku.txt hankaku.bin hankaku.obj : hankaku.bin Makefile $(BIN2OBJ) hankaku.bin hankaku.obj _hankaku bootpack.bim : bootpack.obj naskfunc.obj hankaku.obj Makefile $(OBJ2BIM) @$(RULEFILE) out:bootpack.bim stack:3136k map:bootpack.map \ bootpack.obj naskfunc.obj hankaku.obj # 3MB+64KB=3136KB bootpack.hrb : bootpack.bim Makefile $(BIM2HRB) bootpack.bim bootpack.hrb 0 haribote.sys : asmhead.bin bootpack.hrb Makefile cat asmhead.bin > haribote.sys cat bootpack.hrb >> haribote.sys haribote.img : ipl10.bin haribote.sys Makefile $(EDIMG) imgin:..\..\z_tools\fdimg0at.tek \ wbinimg src:ipl10.bin len:512 from:0 to:0 \ copy from:haribote.sys to:@: \ imgout:haribote.img # command img : $(MAKE) haribote.img run : $(MAKE) img $(COPY) haribote.img ..\..\z_tools\qemu\fdimage0.bin $(MAKE) -C ..\..\z_tools\qemu install : $(MAKE) img $(IMGTOL) w a: haribote.img clean : -$(DEL) *.bin -$(DEL) *.lst -$(DEL) *.gas -$(DEL) *.obj -$(DEL) bootpack.nas -$(DEL) bootpack.map -$(DEL) bootpack.bim -$(DEL) bootpack.hrb -$(DEL) haribote.sys src_only : $(MAKE) clean -$(DEL) haribote.img
ABC123と出力させるためにHariMainを書き換えます。
void HariMain(void) { struct BOOTINFO *binfo = (struct BOOTINFO *) 0x0ff0; extern char hankaku[4096]; init_palette(); init_screen(binfo->vram, binfo->scrnx, binfo->scrny); putfont8(binfo->vram, binfo->scrnx, 8, 8, COL8_FFFFFF, hankaku + 'A' * 16); putfont8(binfo->vram, binfo->scrnx, 16, 8, COL8_FFFFFF, hankaku + 'B' * 16); putfont8(binfo->vram, binfo->scrnx, 24, 8, COL8_FFFFFF, hankaku + 'C' * 16); putfont8(binfo->vram, binfo->scrnx, 40, 8, COL8_FFFFFF, hankaku + '1' * 16); putfont8(binfo->vram, binfo->scrnx, 48, 8, COL8_FFFFFF, hankaku + '2' * 16); putfont8(binfo->vram, binfo->scrnx, 56, 8, COL8_FFFFFF, hankaku + '3' * 16); for (;;) { io_hlt(); } }
これでABC123が画面に出力されました!
すごいすごい!
いちいち一文字ずつ関数を呼び出すのはめんどくさいので新しく関数を定義してみます。
void io_hlt(void); void io_cli(void); void io_out8(int port, int data); int io_load_eflags(void); void io_store_eflags(int eflags); void init_palette(void); void set_palette(int start, int end, unsigned char *rgd); void boxfill8(unsigned char *vram, int xsize, unsigned char c, int x0, int y0, int x1, int y1); void init_screen(char *vram, int x, int y); void putfont8(char *vram, int xsize, int x, int y, char c, char *font); void putfonts8_asc(char *vram, int xsize, int x, int y, char c, unsigned char *s); #define COL8_000000 0 #define COL8_FF0000 1 #define COL8_00FF00 2 #define COL8_FFFF00 3 #define COL8_0000FF 4 #define COL8_FF00FF 5 #define COL8_00FFFF 6 #define COL8_FFFFFF 7 #define COL8_C6C6C6 8 #define COL8_840000 9 #define COL8_008400 10 #define COL8_848400 11 #define COL8_000084 12 #define COL8_840084 13 #define COL8_008484 14 #define COL8_848484 15 struct BOOTINFO { char cyls, leds, vmode, reserve; short scrnx, scrny; char *vram; }; void HariMain(void) { struct BOOTINFO *binfo = (struct BOOTINFO *) 0x0ff0; extern char hankaku[4096]; init_palette(); init_screen(binfo->vram, binfo->scrnx, binfo->scrny); putfonts8_asc(binfo->vram, binfo->scrnx, 8, 8, COL8_FFFFFF, "ABC 123"); putfonts8_asc(binfo->vram, binfo->scrnx, 31, 31, COL8_000000, "Haribote OS."); putfonts8_asc(binfo->vram, binfo->scrnx, 30, 30, COL8_FFFFFF, "Haribote OS."); for (;;) { io_hlt(); } } void init_palette(void) { static unsigned char table_rgb[16 * 3] = { 0x00, 0x00, 0x00, /* 0:black */ 0xff, 0x00, 0x00, /* 1:light red */ 0x00, 0xff, 0x00, /* 2:light green */ 0xff, 0xff, 0x00, /* 3:light yellow */ 0x00, 0x00, 0xff, /* 4:light blue */ 0xff, 0x00, 0xff, /* 5:light puple */ 0x00, 0xff, 0xff, /* 6:light sky blue */ 0xff, 0xff, 0xff, /* 7:white */ 0xc6, 0xc6, 0xc6, /* 8:light grey */ 0x84, 0x00, 0x00, /* 9:dark green */ 0x00, 0x84, 0x00, /* 10:dark green */ 0x84, 0x84, 0x00, /* 11:dark yellow */ 0x00, 0x00, 0x84, /* 12:dark blue */ 0x84, 0x00, 0x84, /* 13:dark puple */ 0x00, 0x84, 0x84, /* 14:dark sky blue */ 0x84, 0x84, 0x84 /* 15:dark grey */ }; set_palette(0, 15, table_rgb); return; } void set_palette(int start, int end, unsigned char *rgb) { int i, eflags; eflags = io_load_eflags(); io_cli(); io_out8(0x03c8, start); for (i = start; i <= end; i++) { io_out8(0x03c9, rgb[0] / 4); io_out8(0x03c9, rgb[1] / 4); io_out8(0x03c9, rgb[2] / 4); rgb += 3; } io_store_eflags(eflags); return; } void boxfill8(unsigned char *vram, int xsize, unsigned char c, int x0, int y0, int x1, int y1) { int x, y; for (y= y0; y <= y1; y++) { for (x = x0; x <= x1; x++) vram[y * xsize + x] = c; } return; } void init_screen(char *vram, int x, int y) { boxfill8(vram, x, COL8_008484, 0, 0, x - 1, y - 29); boxfill8(vram, x, COL8_C6C6C6, 0, y - 28, x - 1, y - 28); boxfill8(vram, x, COL8_FFFFFF, 0, y - 27, x - 1, y - 27); boxfill8(vram, x, COL8_C6C6C6, 0, y - 26, x - 1, y - 1); boxfill8(vram, x, COL8_FFFFFF, 3, y - 24, 59, y - 24); boxfill8(vram, x, COL8_FFFFFF, 2, y - 24, 2, y - 4); boxfill8(vram, x, COL8_848484, 3, y - 4, 59, y - 4); boxfill8(vram, x, COL8_848484, 59, y - 23, 59, y - 5); boxfill8(vram, x, COL8_000000, 2, y - 3, 59, y - 3); boxfill8(vram, x, COL8_000000, 60, y - 24, 60, y - 3); boxfill8(vram, x, COL8_848484, x - 47, y - 24, x - 4, y - 24); boxfill8(vram, x, COL8_848484, x - 47, y - 23, x - 47, y - 4); boxfill8(vram, x, COL8_FFFFFF, x - 47, y - 3, x - 4, y - 3); boxfill8(vram, x, COL8_FFFFFF, x - 3, y - 24, x - 3, y - 3); return; } void putfont8(char *vram, int xsize, int x, int y, char c, char *font) { int i; char *p, d; for (i = 0; i < 16; i++) { p = vram + (y + i) * xsize + x; d = font[i]; if ((d & 0x80) != 0) { p[0] = c; } if ((d & 0x40) != 0) { p[1] = c; } if ((d & 0x20) != 0) { p[2] = c; } if ((d & 0x10) != 0) { p[3] = c; } if ((d & 0x08) != 0) { p[4] = c; } if ((d & 0x04) != 0) { p[5] = c; } if ((d & 0x02) != 0) { p[6] = c; } if ((d & 0x01) != 0) { p[7] = c; } } return ; } void putfonts8_asc(char *vram, int xsize, int x, int y, char c, unsigned char *s) { extern char hankaku[4096]; for (; *s != 0x00; s++) { putfont8(vram, xsize, x, y, c, hankaku + *s * 16); x += 8; } return; }
これで文字の出力が楽になりました。
次は変数をみれるように改造します。
sprintfを使います。
#include <stdio.h> void io_hlt(void); void io_cli(void); void io_out8(int port, int data); int io_load_eflags(void); void io_store_eflags(int eflags); void init_palette(void); void set_palette(int start, int end, unsigned char *rgd); void boxfill8(unsigned char *vram, int xsize, unsigned char c, int x0, int y0, int x1, int y1); void init_screen(char *vram, int x, int y); void putfont8(char *vram, int xsize, int x, int y, char c, char *font); void putfonts8_asc(char *vram, int xsize, int x, int y, char c, unsigned char *s); #define COL8_000000 0 #define COL8_FF0000 1 #define COL8_00FF00 2 #define COL8_FFFF00 3 #define COL8_0000FF 4 #define COL8_FF00FF 5 #define COL8_00FFFF 6 #define COL8_FFFFFF 7 #define COL8_C6C6C6 8 #define COL8_840000 9 #define COL8_008400 10 #define COL8_848400 11 #define COL8_000084 12 #define COL8_840084 13 #define COL8_008484 14 #define COL8_848484 15 struct BOOTINFO { char cyls, leds, vmode, reserve; short scrnx, scrny; char *vram; }; void HariMain(void) { struct BOOTINFO *binfo = (struct BOOTINFO *) 0x0ff0; char s[40]; init_palette(); init_screen(binfo->vram, binfo->scrnx, binfo->scrny); putfonts8_asc(binfo->vram, binfo->scrnx, 8, 8, COL8_FFFFFF, "ABC 123"); putfonts8_asc(binfo->vram, binfo->scrnx, 31, 31, COL8_000000, "Haribote OS."); putfonts8_asc(binfo->vram, binfo->scrnx, 30, 30, COL8_FFFFFF, "Haribote OS."); sprintf(s, "scrnx = %d", binfo->scrnx); putfonts8_asc(binfo->vram, binfo->scrnx, 16, 64, COL8_FFFFFF, s); for (;;) { io_hlt(); } }
次はマウスカーソルを表示させたいのでさらにソースコードに手を加えていきます。
#include <stdio.h> void io_hlt(void); void io_cli(void); void io_out8(int port, int data); int io_load_eflags(void); void io_store_eflags(int eflags); void init_palette(void); void set_palette(int start, int end, unsigned char *rgd); void boxfill8(unsigned char *vram, int xsize, unsigned char c, int x0, int y0, int x1, int y1); void init_screen(char *vram, int x, int y); void putfont8(char *vram, int xsize, int x, int y, char c, char *font); void putfonts8_asc(char *vram, int xsize, int x, int y, char c, unsigned char *s); void init_mouse_cursor8(char *mouse, char bc); void putblock8_8(char *vram, int vxsize, int pxsize, int pysize, int px0, int py0, char *buf, int bxsize); #define COL8_000000 0 #define COL8_FF0000 1 #define COL8_00FF00 2 #define COL8_FFFF00 3 #define COL8_0000FF 4 #define COL8_FF00FF 5 #define COL8_00FFFF 6 #define COL8_FFFFFF 7 #define COL8_C6C6C6 8 #define COL8_840000 9 #define COL8_008400 10 #define COL8_848400 11 #define COL8_000084 12 #define COL8_840084 13 #define COL8_008484 14 #define COL8_848484 15 struct BOOTINFO { char cyls, leds, vmode, reserve; short scrnx, scrny; char *vram; }; void HariMain(void) { struct BOOTINFO *binfo = (struct BOOTINFO *) 0x0ff0; char s[40], mcursor[256]; int mx, my; init_palette(); init_screen(binfo->vram, binfo->scrnx, binfo->scrny); mx = (binfo->scrnx - 16) / 2; my = (binfo->scrny - 28 - 16) / 2; init_mouse_cursor8(mcursor, COL8_008484); putblock8_8(binfo->vram, binfo->scrnx, 16, 16, mx, my, mcursor, 16); sprintf(s, "(%d, %d)", mx, my); putfonts8_asc(binfo->vram, binfo->scrnx, 0, 0, COL8_FFFFFF, s); for (;;) { io_hlt(); } } void init_palette(void) { static unsigned char table_rgb[16 * 3] = { 0x00, 0x00, 0x00, /* 0:black */ 0xff, 0x00, 0x00, /* 1:light red */ 0x00, 0xff, 0x00, /* 2:light green */ 0xff, 0xff, 0x00, /* 3:light yellow */ 0x00, 0x00, 0xff, /* 4:light blue */ 0xff, 0x00, 0xff, /* 5:light puple */ 0x00, 0xff, 0xff, /* 6:light sky blue */ 0xff, 0xff, 0xff, /* 7:white */ 0xc6, 0xc6, 0xc6, /* 8:light grey */ 0x84, 0x00, 0x00, /* 9:dark green */ 0x00, 0x84, 0x00, /* 10:dark green */ 0x84, 0x84, 0x00, /* 11:dark yellow */ 0x00, 0x00, 0x84, /* 12:dark blue */ 0x84, 0x00, 0x84, /* 13:dark puple */ 0x00, 0x84, 0x84, /* 14:dark sky blue */ 0x84, 0x84, 0x84 /* 15:dark grey */ }; set_palette(0, 15, table_rgb); return; } void set_palette(int start, int end, unsigned char *rgb) { int i, eflags; eflags = io_load_eflags(); io_cli(); io_out8(0x03c8, start); for (i = start; i <= end; i++) { io_out8(0x03c9, rgb[0] / 4); io_out8(0x03c9, rgb[1] / 4); io_out8(0x03c9, rgb[2] / 4); rgb += 3; } io_store_eflags(eflags); return; } void boxfill8(unsigned char *vram, int xsize, unsigned char c, int x0, int y0, int x1, int y1) { int x, y; for (y= y0; y <= y1; y++) { for (x = x0; x <= x1; x++) vram[y * xsize + x] = c; } return; } void init_screen(char *vram, int x, int y) { boxfill8(vram, x, COL8_008484, 0, 0, x - 1, y - 29); boxfill8(vram, x, COL8_C6C6C6, 0, y - 28, x - 1, y - 28); boxfill8(vram, x, COL8_FFFFFF, 0, y - 27, x - 1, y - 27); boxfill8(vram, x, COL8_C6C6C6, 0, y - 26, x - 1, y - 1); boxfill8(vram, x, COL8_FFFFFF, 3, y - 24, 59, y - 24); boxfill8(vram, x, COL8_FFFFFF, 2, y - 24, 2, y - 4); boxfill8(vram, x, COL8_848484, 3, y - 4, 59, y - 4); boxfill8(vram, x, COL8_848484, 59, y - 23, 59, y - 5); boxfill8(vram, x, COL8_000000, 2, y - 3, 59, y - 3); boxfill8(vram, x, COL8_000000, 60, y - 24, 60, y - 3); boxfill8(vram, x, COL8_848484, x - 47, y - 24, x - 4, y - 24); boxfill8(vram, x, COL8_848484, x - 47, y - 23, x - 47, y - 4); boxfill8(vram, x, COL8_FFFFFF, x - 47, y - 3, x - 4, y - 3); boxfill8(vram, x, COL8_FFFFFF, x - 3, y - 24, x - 3, y - 3); return; } void putfont8(char *vram, int xsize, int x, int y, char c, char *font) { int i; char *p, d; for (i = 0; i < 16; i++) { p = vram + (y + i) * xsize + x; d = font[i]; if ((d & 0x80) != 0) { p[0] = c; } if ((d & 0x40) != 0) { p[1] = c; } if ((d & 0x20) != 0) { p[2] = c; } if ((d & 0x10) != 0) { p[3] = c; } if ((d & 0x08) != 0) { p[4] = c; } if ((d & 0x04) != 0) { p[5] = c; } if ((d & 0x02) != 0) { p[6] = c; } if ((d & 0x01) != 0) { p[7] = c; } } return ; } void putfonts8_asc(char *vram, int xsize, int x, int y, char c, unsigned char *s) { extern char hankaku[4096]; for (; *s != 0x00; s++) { putfont8(vram, xsize, x, y, c, hankaku + *s * 16); x += 8; } return; } void init_mouse_cursor8(char *mouse, char bc) { static char cursor[16][16] = { "**************..", "*OOOOOOOOOOO*...", "*OOOOOOOOOO*....", "*OOOOOOOOO*.....", "*OOOOOOOO*......", "*OOOOOO*........", "*OOOOOO*........", "*OOOOOOO*.......", "*OOOO**OOO*.....", "*OOO*..*OOO*....", "*OO*....*OOO*...", "*O*......*OOO*..", "**........*OOO*.", "*..........*OOO*", "............*OO*", ".............***" }; int x, y; for (y = 0; y < 16; y++) { for (x = 0; x < 16; x++) { if (cursor[y][x] == '*') { mouse[y * 16 + x] = COL8_000000; } if (cursor[y][x] == 'O') { mouse[y + 16 + x] = COL8_FFFFFF; } if (cursor[y][x] == '.') { mouse[y * 16 + x] = bc; } } } return; } void putblock8_8(char *vram, int vxsize, int pxsize, int pysize, int px0, int py0, char *buf, int bxsize) { int x, y; for (y = 0; y < pysize; y++) { for (x = 0; x < pxsize; x++) { vram[(py0 + y) * vxsize + (px0 + x)] = buf[y * bxsize + x]; } } return; }
これでマウスカーソルが出力されました。