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Add int 15, bios wait function

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Add first function to int 14 for some serial port detection


Imported-from: https://svn.code.sf.net/p/dosbox/code-0/dosbox/trunk@1844
This commit is contained in:
Sjoerd van der Berg 2004-06-20 16:56:55 +00:00
parent b542452e12
commit 180af29a1e
1 changed files with 42 additions and 12 deletions
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54
src/ints/bios.cpp
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@ -16,7 +16,7 @@
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
/* $Id: bios.cpp,v 1.32 2004-05-19 19:46:28 qbix79 Exp $ */
/* $Id: bios.cpp,v 1.33 2004-06-20 16:56:55 harekiet Exp $ */
#include <time.h>
#include "dosbox.h"
@ -32,7 +32,7 @@
#include "mouse.h"
static Bitu call_int1a,call_int11,call_int8,call_int17,call_int12,call_int15,call_int1c;
static Bitu call_int1,call_int70;
static Bitu call_int1,call_int70,call_int14;
static Bit16u size_extended;
static Bitu INT70_Handler(void) {
@ -48,6 +48,7 @@ static Bitu INT70_Handler(void) {
PhysPt where=Real2Phys(mem_readd(BIOS_WAIT_FLAG_POINTER));
mem_writeb(where,mem_readb(where)|0x80);
mem_writeb(BIOS_WAIT_FLAG_ACTIVE,0);
mem_writed(BIOS_WAIT_FLAG_POINTER,RealMake(0,BIOS_WAIT_FLAG_TEMP));
IO_Write(0x70,0xb);
IO_Write(0x71,IO_Read(0x71)&~0x40);
}
@ -95,7 +96,9 @@ static Bitu INT1A_Handler(void) {
LOG(LOG_BIOS,LOG_ERROR)("INT1A:80:Setup tandy sound multiplexer to %d",reg_al);
break;
case 0x81: /* Tandy sound system checks */
LOG(LOG_BIOS,LOG_ERROR)("INT1A:81:Tandy DAC Check failing");
if (machine!=MCH_TANDY) break;
reg_ax=0xc4;
CALLBACK_SCF(false);
break;
/*
INT 1A - Tandy 2500, Tandy 1000L series - DIGITAL SOUND - INSTALLATION CHECK
@ -168,15 +171,29 @@ static Bitu INT17_Handler(void) {
break;
default:
E_Exit("Unhandled INT 17 call %2X",reg_ah);
};
return CBRET_NONE;
}
static Bitu INT14_Handler(void) {
switch (reg_ah) {
case 0x00: /* Init port */
{
Bitu port=real_readw(0x40,reg_dx*2);
reg_ah=IO_ReadB(port+5);
reg_al=IO_ReadB(port+6);
LOG_MSG("AX %X DX %X",reg_ax,reg_dx);
}
break;
default:
LOG_MSG("Unhandled INT 14 call %2X",reg_ah);
}
return CBRET_NONE;
}
static Bitu INT15_Handler(void) {
static Bitu biosConfigSeg=0;
switch (reg_ah) {
case 0x06:
LOG(LOG_BIOS,LOG_NORMAL)("INT15 Unkown Function 6");
@ -252,6 +269,21 @@ static Bitu INT15_Handler(void) {
{
//TODO Perhaps really wait :)
Bit32u micro=(reg_cx<<16)|reg_dx;
if (mem_readb(BIOS_WAIT_FLAG_ACTIVE)) {
reg_ah=0x83;
CALLBACK_SCF(true);
break;
}
Bit32u count=(reg_cx<<16)|reg_dx;
mem_writed(BIOS_WAIT_FLAG_POINTER,RealMake(0,BIOS_WAIT_FLAG_TEMP));
mem_writed(BIOS_WAIT_FLAG_COUNT,count);
mem_writeb(BIOS_WAIT_FLAG_ACTIVE,1);
/* Reprogram RTC to start */
IO_Write(0x70,0xb);
IO_Write(0x71,IO_Read(0x71)|0x40);
while (mem_readd(BIOS_WAIT_FLAG_COUNT)) {
CALLBACK_Idle();
}
CALLBACK_SCF(false);
}
case 0x87: /* Copy extended memory */
@ -390,8 +422,6 @@ void BIOS_Init(Section* sec) {
CALLBACK_Setup(call_int8,&INT8_Handler,CB_IRET);
mem_writed(BIOS_TIMER,0); //Calculate the correct time
RealSetVec(0x8,CALLBACK_RealPointer(call_int8));
/* INT10 Video Bios */
/* INT 11 Get equipment list */
call_int11=CALLBACK_Allocate();
CALLBACK_Setup(call_int11,&INT11_Handler,CB_IRET);
@ -403,6 +433,9 @@ void BIOS_Init(Section* sec) {
mem_writew(BIOS_MEMORY_SIZE,640);
/* INT 13 Bios Disk Support */
BIOS_SetupDisks();
call_int14=CALLBACK_Allocate();
CALLBACK_Setup(call_int14,&INT14_Handler,CB_IRET);
RealSetVec(0x14,CALLBACK_RealPointer(call_int14));
/* INT 15 Misc Calls */
call_int15=CALLBACK_Allocate();
CALLBACK_Setup(call_int15,&INT15_Handler,CB_IRET);
@ -436,8 +469,8 @@ void BIOS_Init(Section* sec) {
if (IO_Read(0x378)!=0xff) real_writew(0x40,0x08,0x378);
/* Test for serial port */
Bitu index=0;
if (IO_Read(0x3f8)!=0xff) real_writew(0x40,(index++)*2,0x3f8);
if (IO_Read(0x2f8)!=0xff) real_writew(0x40,(index++)*2,0x2f8);
if (IO_Read(0x3fa)!=0xff) real_writew(0x40,(index++)*2,0x3f8);
if (IO_Read(0x2fa)!=0xff) real_writew(0x40,(index++)*2,0x2f8);
/* Setup equipment list */
Bitu config=0x4400; //1 Floppy, 2 serial and 1 parrallel
#if (C_FPU)
@ -461,9 +494,6 @@ void BIOS_Init(Section* sec) {
size_extended=IO_Read(0x71);
IO_Write(0x70,0x31);
size_extended|=(IO_Read(0x71) << 8);
}