static Bitu INT10_Handler(void) {
// NTS: We do have to check the "current video mode" from the BIOS data area every call.
// Some OSes like Windows 95 rely on overwriting the "current video mode" byte in
// the BIOS data area to play tricks with the BIOS. If we don't call this, tricks
// like the Windows 95 boot logo or INT 10h virtualization in Windows 3.1/9x/ME
// within the DOS "box" will not work properly.
INT10_SetCurMode();
switch (reg_ah) {
case 0x00: /* Set VideoMode */
INT10_SetVideoMode(reg_al);
break;
case 0x01: /* Set TextMode Cursor Shape */
INT10_SetCursorShape(reg_ch,reg_cl);
break;
case 0x02: /* Set Cursor Pos */
INT10_SetCursorPos(reg_dh,reg_dl,reg_bh);
break;
case 0x03: /* get Cursor Pos and Cursor Shape*/
// reg_ah=0;
reg_dl=CURSOR_POS_COL(reg_bh);
reg_dh=CURSOR_POS_ROW(reg_bh);
reg_cx=real_readw(BIOSMEM_SEG,BIOSMEM_CURSOR_TYPE);
break;
case 0x04: /* read light pen pos YEAH RIGHT */
/* Light pen is not supported */
reg_ax=0;
break;
case 0x05: /* Set Active Page */
if ((reg_al & 0x80) && IS_TANDY_ARCH) {
Bit8u crtcpu=real_readb(BIOSMEM_SEG, BIOSMEM_CRTCPU_PAGE);
switch (reg_al) {
case 0x80:
reg_bh=crtcpu & 7;
reg_bl=(crtcpu >> 3) & 0x7;
break;
case 0x81:
crtcpu=(crtcpu & 0xc7) | ((reg_bl & 7) << 3);
break;
case 0x82:
crtcpu=(crtcpu & 0xf8) | (reg_bh & 7);
break;
case 0x83:
crtcpu=(crtcpu & 0xc0) | (reg_bh & 7) | ((reg_bl & 7) << 3);
break;
}
if (machine==MCH_PCJR) {
/* always return graphics mapping, even for invalid values of AL */
reg_bh=crtcpu & 7;
reg_bl=(crtcpu >> 3) & 0x7;
}
IO_WriteB(0x3df,crtcpu);
real_writeb(BIOSMEM_SEG, BIOSMEM_CRTCPU_PAGE,crtcpu);
}
static Bitu INT10_Handler(void) {
#if 0
switch (reg_ah) {
case 0x02:
case 0x03:
case 0x09:
case 0xc:
case 0xd:
case 0x0e:
case 0x10:
case 0x4f:
break;
default:
LOG(LOG_INT10,LOG_NORMAL)("Function AX:%04X , BX %04X DX %04X",reg_ax,reg_bx,reg_dx);
break;
}
#endif
switch (reg_ah) {
case 0x00: /* Set VideoMode */
INT10_SetVideoMode(reg_al);
break;
case 0x01: /* Set TextMode Cursor Shape */
INT10_SetCursorShape(reg_ch,reg_cl);
break;
case 0x02: /* Set Cursor Pos */
INT10_SetCursorPos(reg_dh,reg_dl,reg_bh);
break;
case 0x03: /* get Cursor Pos and Cursor Shape*/
// reg_ah=0;
reg_dl=CURSOR_POS_COL(reg_bh);
reg_dh=CURSOR_POS_ROW(reg_bh);
reg_cx=real_readw(BIOSMEM_SEG,BIOSMEM_CURSOR_TYPE);
break;
case 0x04: /* read light pen pos YEAH RIGHT */
/* Light pen is not supported */
reg_ax=0;
break;
case 0x05: /* Set Active Page */
if ((reg_al & 0x80) && IS_TANDY_ARCH) {
Bit8u crtcpu=real_readb(BIOSMEM_SEG, BIOSMEM_CRTCPU_PAGE);
switch (reg_al) {
case 0x80:
reg_bh=crtcpu & 7;
reg_bl=(crtcpu >> 3) & 0x7;
break;
case 0x81:
crtcpu=(crtcpu & 0xc7) | ((reg_bl & 7) << 3);
break;
case 0x82:
crtcpu=(crtcpu & 0xf8) | (reg_bh & 7);
break;
case 0x83:
crtcpu=(crtcpu & 0xc0) | (reg_bh & 7) | ((reg_bl & 7) << 3);
break;
}
if (machine==MCH_PCJR) {
/* always return graphics mapping, even for invalid values of AL */
reg_bh=crtcpu & 7;
reg_bl=(crtcpu >> 3) & 0x7;
}
IO_WriteB(0x3df,crtcpu);
real_writeb(BIOSMEM_SEG, BIOSMEM_CRTCPU_PAGE,crtcpu);
}
