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Fix regression in bios, port DMA fix from libretro

This commit is contained in:
Squall Leonhart 2023-01-10 17:29:40 +11:00 committed by GitHub
parent 25bcf2e42d
commit ca7ae3363e
No known key found for this signature in database
GPG Key ID: 4AEE18F83AFDEB23
3 changed files with 44 additions and 42 deletions
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11
src/gba/GBA.cpp
View File

@ -50,8 +50,9 @@ bool busPrefetchEnable = false;
uint32_t busPrefetchCount = 0;
int cpuDmaTicksToUpdate = 0;
int cpuDmaCount = 0;
bool cpuDmaHack = false;
bool cpuDmaRunning = false;
uint32_t cpuDmaLast = 0;
uint32_t cpuDmaPC = 0;
int dummyAddress = 0;
bool cpuBreakLoop = false;
@ -2133,7 +2134,6 @@ void CPUSoftwareInterrupt(int comment)
break;
case 0x0A:
BIOS_ArcTan2();
reg[3].I = 0x170;
break;
case 0x0B: {
int len = (reg[2].I & 0x1FFFFF) >> 1;
@ -2341,7 +2341,8 @@ void doDMA(uint32_t& s, uint32_t& d, uint32_t si, uint32_t di, uint32_t c, int t
int dw = 0;
int sc = c;
cpuDmaHack = true;
cpuDmaRunning = true;
cpuDmaPC = reg[15].I;
cpuDmaCount = c;
// This is done to get the correct waitstates.
if (sm > 15)
@ -2406,7 +2407,7 @@ void doDMA(uint32_t& s, uint32_t& d, uint32_t si, uint32_t di, uint32_t c, int t
}
cpuDmaTicksToUpdate += totalTicks;
cpuDmaHack = false;
cpuDmaRunning = false;
}
void CPUCheckDMA(int reason, int dmamask)
@ -3658,7 +3659,7 @@ void CPUReset()
systemSaveUpdateCounter = SYSTEM_SAVE_NOT_UPDATED;
cpuDmaHack = false;
cpuDmaRunning = false;
lastTime = systemGetClock();

9
src/gba/GBAinline.h
View File

@ -23,8 +23,9 @@ extern bool cpuSramEnabled;
extern bool cpuFlashEnabled;
extern bool cpuEEPROMEnabled;
extern bool cpuEEPROMSensorEnabled;
extern bool cpuDmaHack;
extern bool cpuDmaRunning;
extern uint32_t cpuDmaLast;
extern uint32_t cpuDmaPC;
extern bool timer0On;
extern int timer0Ticks;
extern int timer0ClockReload;
@ -165,7 +166,7 @@ static inline uint32_t CPUReadMemory(uint32_t address)
armMode ? armNextPC - 4 : armNextPC - 2);
}
#endif
if (cpuDmaHack) {
if (cpuDmaRunning || ((reg[15].I - cpuDmaPC) == (armState ? 4 : 2))) {
value = cpuDmaLast;
} else {
if (armState) {
@ -308,7 +309,7 @@ static inline uint32_t CPUReadHalfWord(uint32_t address)
/* fallthrough */
default:
unreadable:
if (cpuDmaHack) {
if (cpuDmaRunning|| ((reg[15].I - cpuDmaPC) == (armState ? 4 : 2))) {
value = cpuDmaLast & 0xFFFF;
} else {
int param = reg[15].I;
@ -441,7 +442,7 @@ static inline uint8_t CPUReadByte(uint32_t address)
armMode ? armNextPC - 4 : armNextPC - 2);
}
#endif
if (cpuDmaHack) {
if (cpuDmaRunning || ((reg[15].I - cpuDmaPC) == (armState ? 4 : 2))) {
return cpuDmaLast & 0xFF;
} else {
if (armState) {

66
src/gba/bios.cpp
View File

@ -7,39 +7,39 @@
#include "Globals.h"
#include "bios.h"
uint16_t sineTable[256] = {
(uint16_t)0x0000, (uint16_t)0x0192, (uint16_t)0x0323, (uint16_t)0x04B5, (uint16_t)0x0645, (uint16_t)0x07D5, (uint16_t)0x0964, (uint16_t)0x0AF1,
(uint16_t)0x0C7C, (uint16_t)0x0E05, (uint16_t)0x0F8C, (uint16_t)0x1111, (uint16_t)0x1294, (uint16_t)0x1413, (uint16_t)0x158F, (uint16_t)0x1708,
(uint16_t)0x187D, (uint16_t)0x19EF, (uint16_t)0x1B5D, (uint16_t)0x1CC6, (uint16_t)0x1E2B, (uint16_t)0x1F8B, (uint16_t)0x20E7, (uint16_t)0x223D,
(uint16_t)0x238E, (uint16_t)0x24DA, (uint16_t)0x261F, (uint16_t)0x275F, (uint16_t)0x2899, (uint16_t)0x29CD, (uint16_t)0x2AFA, (uint16_t)0x2C21,
(uint16_t)0x2D41, (uint16_t)0x2E5A, (uint16_t)0x2F6B, (uint16_t)0x3076, (uint16_t)0x3179, (uint16_t)0x3274, (uint16_t)0x3367, (uint16_t)0x3453,
(uint16_t)0x3536, (uint16_t)0x3612, (uint16_t)0x36E5, (uint16_t)0x37AF, (uint16_t)0x3871, (uint16_t)0x392A, (uint16_t)0x39DA, (uint16_t)0x3A82,
(uint16_t)0x3B20, (uint16_t)0x3BB6, (uint16_t)0x3C42, (uint16_t)0x3CC5, (uint16_t)0x3D3E, (uint16_t)0x3DAE, (uint16_t)0x3E14, (uint16_t)0x3E71,
(uint16_t)0x3EC5, (uint16_t)0x3F0E, (uint16_t)0x3F4E, (uint16_t)0x3F84, (uint16_t)0x3FB1, (uint16_t)0x3FD3, (uint16_t)0x3FEC, (uint16_t)0x3FFB,
(uint16_t)0x4000, (uint16_t)0x3FFB, (uint16_t)0x3FEC, (uint16_t)0x3FD3, (uint16_t)0x3FB1, (uint16_t)0x3F84, (uint16_t)0x3F4E, (uint16_t)0x3F0E,
(uint16_t)0x3EC5, (uint16_t)0x3E71, (uint16_t)0x3E14, (uint16_t)0x3DAE, (uint16_t)0x3D3E, (uint16_t)0x3CC5, (uint16_t)0x3C42, (uint16_t)0x3BB6,
(uint16_t)0x3B20, (uint16_t)0x3A82, (uint16_t)0x39DA, (uint16_t)0x392A, (uint16_t)0x3871, (uint16_t)0x37AF, (uint16_t)0x36E5, (uint16_t)0x3612,
(uint16_t)0x3536, (uint16_t)0x3453, (uint16_t)0x3367, (uint16_t)0x3274, (uint16_t)0x3179, (uint16_t)0x3076, (uint16_t)0x2F6B, (uint16_t)0x2E5A,
(uint16_t)0x2D41, (uint16_t)0x2C21, (uint16_t)0x2AFA, (uint16_t)0x29CD, (uint16_t)0x2899, (uint16_t)0x275F, (uint16_t)0x261F, (uint16_t)0x24DA,
(uint16_t)0x238E, (uint16_t)0x223D, (uint16_t)0x20E7, (uint16_t)0x1F8B, (uint16_t)0x1E2B, (uint16_t)0x1CC6, (uint16_t)0x1B5D, (uint16_t)0x19EF,
(uint16_t)0x187D, (uint16_t)0x1708, (uint16_t)0x158F, (uint16_t)0x1413, (uint16_t)0x1294, (uint16_t)0x1111, (uint16_t)0x0F8C, (uint16_t)0x0E05,
(uint16_t)0x0C7C, (uint16_t)0x0AF1, (uint16_t)0x0964, (uint16_t)0x07D5, (uint16_t)0x0645, (uint16_t)0x04B5, (uint16_t)0x0323, (uint16_t)0x0192,
(uint16_t)0x0000, (uint16_t)0xFE6E, (uint16_t)0xFCDD, (uint16_t)0xFB4B, (uint16_t)0xF9BB, (uint16_t)0xF82B, (uint16_t)0xF69C, (uint16_t)0xF50F,
(uint16_t)0xF384, (uint16_t)0xF1FB, (uint16_t)0xF074, (uint16_t)0xEEEF, (uint16_t)0xED6C, (uint16_t)0xEBED, (uint16_t)0xEA71, (uint16_t)0xE8F8,
(uint16_t)0xE783, (uint16_t)0xE611, (uint16_t)0xE4A3, (uint16_t)0xE33A, (uint16_t)0xE1D5, (uint16_t)0xE075, (uint16_t)0xDF19, (uint16_t)0xDDC3,
(uint16_t)0xDC72, (uint16_t)0xDB26, (uint16_t)0xD9E1, (uint16_t)0xD8A1, (uint16_t)0xD767, (uint16_t)0xD633, (uint16_t)0xD506, (uint16_t)0xD3DF,
(uint16_t)0xD2BF, (uint16_t)0xD1A6, (uint16_t)0xD095, (uint16_t)0xCF8A, (uint16_t)0xCE87, (uint16_t)0xCD8C, (uint16_t)0xCC99, (uint16_t)0xCBAD,
(uint16_t)0xCACA, (uint16_t)0xC9EE, (uint16_t)0xC91B, (uint16_t)0xC851, (uint16_t)0xC78F, (uint16_t)0xC6D6, (uint16_t)0xC626, (uint16_t)0xC57E,
(uint16_t)0xC4E0, (uint16_t)0xC44A, (uint16_t)0xC3BE, (uint16_t)0xC33B, (uint16_t)0xC2C2, (uint16_t)0xC252, (uint16_t)0xC1EC, (uint16_t)0xC18F,
(uint16_t)0xC13B, (uint16_t)0xC0F2, (uint16_t)0xC0B2, (uint16_t)0xC07C, (uint16_t)0xC04F, (uint16_t)0xC02D, (uint16_t)0xC014, (uint16_t)0xC005,
(uint16_t)0xC000, (uint16_t)0xC005, (uint16_t)0xC014, (uint16_t)0xC02D, (uint16_t)0xC04F, (uint16_t)0xC07C, (uint16_t)0xC0B2, (uint16_t)0xC0F2,
(uint16_t)0xC13B, (uint16_t)0xC18F, (uint16_t)0xC1EC, (uint16_t)0xC252, (uint16_t)0xC2C2, (uint16_t)0xC33B, (uint16_t)0xC3BE, (uint16_t)0xC44A,
(uint16_t)0xC4E0, (uint16_t)0xC57E, (uint16_t)0xC626, (uint16_t)0xC6D6, (uint16_t)0xC78F, (uint16_t)0xC851, (uint16_t)0xC91B, (uint16_t)0xC9EE,
(uint16_t)0xCACA, (uint16_t)0xCBAD, (uint16_t)0xCC99, (uint16_t)0xCD8C, (uint16_t)0xCE87, (uint16_t)0xCF8A, (uint16_t)0xD095, (uint16_t)0xD1A6,
(uint16_t)0xD2BF, (uint16_t)0xD3DF, (uint16_t)0xD506, (uint16_t)0xD633, (uint16_t)0xD767, (uint16_t)0xD8A1, (uint16_t)0xD9E1, (uint16_t)0xDB26,
(uint16_t)0xDC72, (uint16_t)0xDDC3, (uint16_t)0xDF19, (uint16_t)0xE075, (uint16_t)0xE1D5, (uint16_t)0xE33A, (uint16_t)0xE4A3, (uint16_t)0xE611,
(uint16_t)0xE783, (uint16_t)0xE8F8, (uint16_t)0xEA71, (uint16_t)0xEBED, (uint16_t)0xED6C, (uint16_t)0xEEEF, (uint16_t)0xF074, (uint16_t)0xF1FB,
(uint16_t)0xF384, (uint16_t)0xF50F, (uint16_t)0xF69C, (uint16_t)0xF82B, (uint16_t)0xF9BB, (uint16_t)0xFB4B, (uint16_t)0xFCDD, (uint16_t)0xFE6E
int16_t sineTable[256] = {
(int16_t)0x0000, (int16_t)0x0192, (int16_t)0x0323, (int16_t)0x04B5, (int16_t)0x0645, (int16_t)0x07D5, (int16_t)0x0964, (int16_t)0x0AF1,
(int16_t)0x0C7C, (int16_t)0x0E05, (int16_t)0x0F8C, (int16_t)0x1111, (int16_t)0x1294, (int16_t)0x1413, (int16_t)0x158F, (int16_t)0x1708,
(int16_t)0x187D, (int16_t)0x19EF, (int16_t)0x1B5D, (int16_t)0x1CC6, (int16_t)0x1E2B, (int16_t)0x1F8B, (int16_t)0x20E7, (int16_t)0x223D,
(int16_t)0x238E, (int16_t)0x24DA, (int16_t)0x261F, (int16_t)0x275F, (int16_t)0x2899, (int16_t)0x29CD, (int16_t)0x2AFA, (int16_t)0x2C21,
(int16_t)0x2D41, (int16_t)0x2E5A, (int16_t)0x2F6B, (int16_t)0x3076, (int16_t)0x3179, (int16_t)0x3274, (int16_t)0x3367, (int16_t)0x3453,
(int16_t)0x3536, (int16_t)0x3612, (int16_t)0x36E5, (int16_t)0x37AF, (int16_t)0x3871, (int16_t)0x392A, (int16_t)0x39DA, (int16_t)0x3A82,
(int16_t)0x3B20, (int16_t)0x3BB6, (int16_t)0x3C42, (int16_t)0x3CC5, (int16_t)0x3D3E, (int16_t)0x3DAE, (int16_t)0x3E14, (int16_t)0x3E71,
(int16_t)0x3EC5, (int16_t)0x3F0E, (int16_t)0x3F4E, (int16_t)0x3F84, (int16_t)0x3FB1, (int16_t)0x3FD3, (int16_t)0x3FEC, (int16_t)0x3FFB,
(int16_t)0x4000, (int16_t)0x3FFB, (int16_t)0x3FEC, (int16_t)0x3FD3, (int16_t)0x3FB1, (int16_t)0x3F84, (int16_t)0x3F4E, (int16_t)0x3F0E,
(int16_t)0x3EC5, (int16_t)0x3E71, (int16_t)0x3E14, (int16_t)0x3DAE, (int16_t)0x3D3E, (int16_t)0x3CC5, (int16_t)0x3C42, (int16_t)0x3BB6,
(int16_t)0x3B20, (int16_t)0x3A82, (int16_t)0x39DA, (int16_t)0x392A, (int16_t)0x3871, (int16_t)0x37AF, (int16_t)0x36E5, (int16_t)0x3612,
(int16_t)0x3536, (int16_t)0x3453, (int16_t)0x3367, (int16_t)0x3274, (int16_t)0x3179, (int16_t)0x3076, (int16_t)0x2F6B, (int16_t)0x2E5A,
(int16_t)0x2D41, (int16_t)0x2C21, (int16_t)0x2AFA, (int16_t)0x29CD, (int16_t)0x2899, (int16_t)0x275F, (int16_t)0x261F, (int16_t)0x24DA,
(int16_t)0x238E, (int16_t)0x223D, (int16_t)0x20E7, (int16_t)0x1F8B, (int16_t)0x1E2B, (int16_t)0x1CC6, (int16_t)0x1B5D, (int16_t)0x19EF,
(int16_t)0x187D, (int16_t)0x1708, (int16_t)0x158F, (int16_t)0x1413, (int16_t)0x1294, (int16_t)0x1111, (int16_t)0x0F8C, (int16_t)0x0E05,
(int16_t)0x0C7C, (int16_t)0x0AF1, (int16_t)0x0964, (int16_t)0x07D5, (int16_t)0x0645, (int16_t)0x04B5, (int16_t)0x0323, (int16_t)0x0192,
(int16_t)0x0000, (int16_t)0xFE6E, (int16_t)0xFCDD, (int16_t)0xFB4B, (int16_t)0xF9BB, (int16_t)0xF82B, (int16_t)0xF69C, (int16_t)0xF50F,
(int16_t)0xF384, (int16_t)0xF1FB, (int16_t)0xF074, (int16_t)0xEEEF, (int16_t)0xED6C, (int16_t)0xEBED, (int16_t)0xEA71, (int16_t)0xE8F8,
(int16_t)0xE783, (int16_t)0xE611, (int16_t)0xE4A3, (int16_t)0xE33A, (int16_t)0xE1D5, (int16_t)0xE075, (int16_t)0xDF19, (int16_t)0xDDC3,
(int16_t)0xDC72, (int16_t)0xDB26, (int16_t)0xD9E1, (int16_t)0xD8A1, (int16_t)0xD767, (int16_t)0xD633, (int16_t)0xD506, (int16_t)0xD3DF,
(int16_t)0xD2BF, (int16_t)0xD1A6, (int16_t)0xD095, (int16_t)0xCF8A, (int16_t)0xCE87, (int16_t)0xCD8C, (int16_t)0xCC99, (int16_t)0xCBAD,
(int16_t)0xCACA, (int16_t)0xC9EE, (int16_t)0xC91B, (int16_t)0xC851, (int16_t)0xC78F, (int16_t)0xC6D6, (int16_t)0xC626, (int16_t)0xC57E,
(int16_t)0xC4E0, (int16_t)0xC44A, (int16_t)0xC3BE, (int16_t)0xC33B, (int16_t)0xC2C2, (int16_t)0xC252, (int16_t)0xC1EC, (int16_t)0xC18F,
(int16_t)0xC13B, (int16_t)0xC0F2, (int16_t)0xC0B2, (int16_t)0xC07C, (int16_t)0xC04F, (int16_t)0xC02D, (int16_t)0xC014, (int16_t)0xC005,
(int16_t)0xC000, (int16_t)0xC005, (int16_t)0xC014, (int16_t)0xC02D, (int16_t)0xC04F, (int16_t)0xC07C, (int16_t)0xC0B2, (int16_t)0xC0F2,
(int16_t)0xC13B, (int16_t)0xC18F, (int16_t)0xC1EC, (int16_t)0xC252, (int16_t)0xC2C2, (int16_t)0xC33B, (int16_t)0xC3BE, (int16_t)0xC44A,
(int16_t)0xC4E0, (int16_t)0xC57E, (int16_t)0xC626, (int16_t)0xC6D6, (int16_t)0xC78F, (int16_t)0xC851, (int16_t)0xC91B, (int16_t)0xC9EE,
(int16_t)0xCACA, (int16_t)0xCBAD, (int16_t)0xCC99, (int16_t)0xCD8C, (int16_t)0xCE87, (int16_t)0xCF8A, (int16_t)0xD095, (int16_t)0xD1A6,
(int16_t)0xD2BF, (int16_t)0xD3DF, (int16_t)0xD506, (int16_t)0xD633, (int16_t)0xD767, (int16_t)0xD8A1, (int16_t)0xD9E1, (int16_t)0xDB26,
(int16_t)0xDC72, (int16_t)0xDDC3, (int16_t)0xDF19, (int16_t)0xE075, (int16_t)0xE1D5, (int16_t)0xE33A, (int16_t)0xE4A3, (int16_t)0xE611,
(int16_t)0xE783, (int16_t)0xE8F8, (int16_t)0xEA71, (int16_t)0xEBED, (int16_t)0xED6C, (int16_t)0xEEEF, (int16_t)0xF074, (int16_t)0xF1FB,
(int16_t)0xF384, (int16_t)0xF50F, (int16_t)0xF69C, (int16_t)0xF82B, (int16_t)0xF9BB, (int16_t)0xFB4B, (int16_t)0xFCDD, (int16_t)0xFE6E
};
// 2020-08-12 - negativeExponent