diff options
| -rw-r--r-- | vgasrc/vgabios.c | 60 |
1 files changed, 60 insertions, 0 deletions
diff --git a/vgasrc/vgabios.c b/vgasrc/vgabios.c index b13d274..afaf018 100644 --- a/vgasrc/vgabios.c +++ b/vgasrc/vgabios.c @@ -797,6 +797,61 @@ handle_101114(struct bregs *regs) } static void +handle_101120(struct bregs *regs) +{ + SET_IVT(0x1f, SEGOFF(regs->es, regs->bp)); +} + +void +load_gfx_font(u16 seg, u16 off, u8 height, u8 bl, u8 dl) +{ + u8 rows; + + SET_IVT(0x43, SEGOFF(seg, off)); + switch(bl) { + case 0: + rows = dl; + break; + case 1: + rows = 14; + break; + case 3: + rows = 43; + break; + case 2: + default: + rows = 25; + break; + } + SET_BDA(video_rows, rows - 1); + SET_BDA(char_height, height); +} + +static void +handle_101121(struct bregs *regs) +{ + load_gfx_font(regs->es, regs->bp, regs->cx, regs->bl, regs->dl); +} + +static void +handle_101122(struct bregs *regs) +{ + load_gfx_font(get_global_seg(), (u32)vgafont14, 14, regs->bl, regs->dl); +} + +static void +handle_101123(struct bregs *regs) +{ + load_gfx_font(get_global_seg(), (u32)vgafont8, 8, regs->bl, regs->dl); +} + +static void +handle_101124(struct bregs *regs) +{ + load_gfx_font(get_global_seg(), (u32)vgafont16, 16, regs->bl, regs->dl); +} + +static void handle_101130(struct bregs *regs) { switch (regs->bh) { @@ -867,6 +922,11 @@ handle_1011(struct bregs *regs) case 0x12: handle_101112(regs); break; case 0x14: handle_101114(regs); break; case 0x30: handle_101130(regs); break; + case 0x20: handle_101120(regs); break; + case 0x21: handle_101121(regs); break; + case 0x22: handle_101122(regs); break; + case 0x23: handle_101123(regs); break; + case 0x24: handle_101124(regs); break; default: handle_1011XX(regs); break; } } |