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io-read.c
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io-read.c
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#include "io-read.h"
#include <gba_input.h>
#include <gba_interrupt.h>
#include <gba_sound.h>
#include <stdio.h>
#include <string.h>
#include "suite.h"
struct IOReadTest {
const char* testName;
u32 address;
bool storeFirst;
bool restoreAfter;
u16 expected;
u16 restore;
};
static const struct IOReadTest ioReadTests[] = {
{ "BG0CNT", 0x4000008, true, true, 0xDFFF, 0 },
{ "BG1CNT", 0x400000A, true, true, 0xDFFF, 0 },
{ "BG2CNT", 0x400000C, true, true, 0xFFFF, 0 },
{ "BG3CNT", 0x400000E, true, true, 0xFFFF, 0 },
{ "BG0HOFS", 0x4000010, true, false, 0xDEAD, 0 },
{ "BG0VOFS", 0x4000012, true, false, 0xDEAD, 0 },
{ "BG1HOFS", 0x4000014, true, false, 0xDEAD, 0 },
{ "BG1VOFS", 0x4000016, true, false, 0xDEAD, -4 }, // Set by main
{ "BG2HOFS", 0x4000018, true, false, 0xDEAD, 0 },
{ "BG2VOFS", 0x400001A, true, false, 0xDEAD, 0 },
{ "BG3HOFS", 0x400001C, true, false, 0xDEAD, 0 },
{ "BG3VOFS", 0x400001E, true, false, 0xDEAD, 0 },
{ "BG2PA", 0x4000020, true, false, 0xDEAD, 0 },
{ "BG2PB", 0x4000022, true, false, 0xDEAD, 0 },
{ "BG2PC", 0x4000024, true, false, 0xDEAD, 0 },
{ "BG2PD", 0x4000026, true, false, 0xDEAD, 0 },
{ "BG2X_LO", 0x4000028, true, false, 0xDEAD, 0 },
{ "BG2X_HI", 0x400002A, true, false, 0xDEAD, 0 },
{ "BG2Y_LO", 0x400002C, true, false, 0xDEAD, 0 },
{ "BG2Y_HI", 0x400002E, true, false, 0xDEAD, 0 },
{ "BG3PA", 0x4000030, true, false, 0xDEAD, 0 },
{ "BG3PB", 0x4000032, true, false, 0xDEAD, 0 },
{ "BG3PC", 0x4000034, true, false, 0xDEAD, 0 },
{ "BG3PD", 0x4000036, true, false, 0xDEAD, 0 },
{ "BG3X_LO", 0x4000038, true, false, 0xDEAD, 0 },
{ "BG3X_HI", 0x400003A, true, false, 0xDEAD, 0 },
{ "BG3Y_LO", 0x400003C, true, false, 0xDEAD, 0 },
{ "BG3Y_HI", 0x400003E, true, false, 0xDEAD, 0 },
{ "WIN0H", 0x4000040, true, false, 0xDEAD, 0 },
{ "WIN1H", 0x4000042, true, false, 0xDEAD, 0 },
{ "WIN0V", 0x4000044, true, false, 0xDEAD, 0 },
{ "WIN1V", 0x4000046, true, false, 0xDEAD, 0 },
{ "WININ", 0x4000048, true, true, 0x3F3F, 0 },
{ "WINOUT", 0x400004A, true, true, 0x3F3F, 0 },
{ "MOSAIC", 0x400004C, true, false, 0xDEAD, 0 },
{ "INVALID (4E)", 0x400004E, true, false, 0xDEAD, 0 },
{ "BLDCNT", 0x4000050, true, true, 0x3FFF, 0 },
{ "BLDALPHA", 0x4000052, true, true, 0x1F1F, 0 },
{ "BLDY", 0x4000054, true, true, 0xDEAD, 0 },
{ "INVALID (56)", 0x4000056, true, false, 0xDEAD, 0 },
{ "INVALID (58)", 0x4000058, true, false, 0xDEAD, 0 },
{ "INVALID (5A)", 0x400005A, true, false, 0xDEAD, 0 },
{ "INVALID (5C)", 0x400005C, true, false, 0xDEAD, 0 },
{ "INVALID (5E)", 0x400005E, true, false, 0xDEAD, 0 },
{ "SOUND1CNT_LO", 0x4000060, true, true, 0x007F, 0 },
{ "SOUND1CNT_HI", 0x4000062, true, true, 0xFFC0, 0 },
{ "SOUND1CNT_X", 0x4000064, true, true, 0x4000, 0 },
{ "INVALID (66)", 0x4000066, true, false, 0, 0 },
{ "SOUND2CNT_LO", 0x4000068, true, true, 0xFFC0, 0 },
{ "SOUND2CNT_HI", 0x400006C, true, true, 0x4000, 0 },
{ "INVALID (6E)", 0x400006E, true, false, 0, 0 },
{ "SOUND3CNT_LO", 0x4000070, true, true, 0x00E0, 0 },
{ "SOUND3CNT_HI", 0x4000072, true, true, 0xE000, 0 },
{ "SOUND3CNT_X", 0x4000074, true, true, 0x4000, 0 },
{ "INVALID (76)", 0x4000076, true, false, 0, 0 },
{ "SOUND4CNT_LO", 0x4000078, true, true, 0xFF00, 0 },
{ "INVALID (7A)", 0x400007A, true, false, 0, 0 },
{ "SOUND4CNT_HI", 0x400007C, true, true, 0x40FF, 0 },
{ "INVALID (7E)", 0x400007E, true, false, 0, 0 },
{ "SOUNDCNT_LO", 0x4000080, true, true, 0xFF77, 0 },
{ "SOUNDCNT_HI", 0x4000082, true, true, 0x770F, 0 },
{ "SOUNDCNT_X", 0x4000084, true, true, 0x0080, 0x0080 },
{ "INVALID (86)", 0x4000086, true, false, 0, 0 },
{ "INVALID (8A)", 0x400008A, true, false, 0, 0 },
{ "INVALID (8C)", 0x400008C, true, false, 0xDEAD, 0 },
{ "INVALID (8E)", 0x400008E, true, false, 0xDEAD, 0 },
{ "WAVE_RAM_0", 0x4000090, true, true, 0xFFFF, 0 },
{ "WAVE_RAM_1", 0x4000092, true, true, 0xFFFF, 0 },
{ "WAVE_RAM_2", 0x4000094, true, true, 0xFFFF, 0 },
{ "WAVE_RAM_3", 0x4000096, true, true, 0xFFFF, 0 },
{ "WAVE_RAM_4", 0x4000098, true, true, 0xFFFF, 0 },
{ "WAVE_RAM_5", 0x400009A, true, true, 0xFFFF, 0 },
{ "WAVE_RAM_6", 0x400009C, true, true, 0xFFFF, 0 },
{ "WAVE_RAM_7", 0x400009E, true, true, 0xFFFF, 0 },
{ "FIFO_A_LO", 0x40000A0, true, false, 0xDEAD, 0 },
{ "FIFO_A_HI", 0x40000A2, true, false, 0xDEAD, 0 },
{ "FIFO_B_LO", 0x40000A4, true, false, 0xDEAD, 0 },
{ "FIFO_B_HI", 0x40000A6, true, false, 0xDEAD, 0 },
{ "INVALID (A8)", 0x40000A8, true, false, 0xDEAD, 0 },
{ "INVALID (AA)", 0x40000AA, true, false, 0xDEAD, 0 },
{ "INVALID (AC)", 0x40000AC, true, false, 0xDEAD, 0 },
{ "INVALID (AE)", 0x40000AE, true, false, 0xDEAD, 0 },
{ "DMA0SAD_LO", 0x40000B0, true, false, 0xDEAD, 0 },
{ "DMA0SAD_HI", 0x40000B2, true, false, 0xDEAD, 0 },
{ "DMA0DAD_LO", 0x40000B4, true, false, 0xDEAD, 0 },
{ "DMA0DAD_HI", 0x40000B6, true, false, 0xDEAD, 0 },
{ "DMA0CNT_LO", 0x40000B8, true, true, 0, 1 },
{ "DMA0CNT_HI", 0x40000BA, true, true, 0xF7E0, 0 },
{ "DMA1SAD_LO", 0x40000BC, true, false, 0xDEAD, 0 },
{ "DMA1SAD_HI", 0x40000BE, true, false, 0xDEAD, 0 },
{ "DMA1DAD_LO", 0x40000C0, true, false, 0xDEAD, 0 },
{ "DMA1DAD_HI", 0x40000C2, true, false, 0xDEAD, 0 },
{ "DMA1CNT_LO", 0x40000C4, true, true, 0, 1 },
{ "DMA1CNT_HI", 0x40000C6, true, true, 0xF7E0, 0 },
{ "DMA2SAD_LO", 0x40000C8, true, false, 0xDEAD, 0 },
{ "DMA2SAD_HI", 0x40000CA, true, false, 0xDEAD, 0 },
{ "DMA2DAD_LO", 0x40000CC, true, false, 0xDEAD, 0 },
{ "DMA2DAD_HI", 0x40000CE, true, false, 0xDEAD, 0 },
{ "DMA2CNT_LO", 0x40000D0, true, true, 0, 1 },
{ "DMA2CNT_HI", 0x40000D2, true, true, 0xF7E0, 0 },
{ "DMA3SAD_LO", 0x40000D4, true, false, 0xDEAD, 0 },
{ "DMA3SAD_HI", 0x40000D6, true, false, 0xDEAD, 0 },
{ "DMA3DAD_LO", 0x40000D8, true, false, 0xDEAD, 0 },
{ "DMA3DAD_HI", 0x40000DA, true, false, 0xDEAD, 0 },
{ "DMA3CNT_LO", 0x40000DC, true, true, 0, 1 },
{ "DMA3CNT_HI", 0x40000DE, true, true, 0xFFE0, 0 },
{ "INVALID (E0)", 0x40000E0, true, false, 0xDEAD, 0 },
{ "INVALID (E2)", 0x40000E2, true, false, 0xDEAD, 0 },
{ "INVALID (E4)", 0x40000E4, true, false, 0xDEAD, 0 },
{ "INVALID (E6)", 0x40000E6, true, false, 0xDEAD, 0 },
{ "INVALID (E8)", 0x40000E8, true, false, 0xDEAD, 0 },
{ "INVALID (EA)", 0x40000EA, true, false, 0xDEAD, 0 },
{ "INVALID (EC)", 0x40000EC, true, false, 0xDEAD, 0 },
{ "INVALID (EE)", 0x40000EE, true, false, 0xDEAD, 0 },
{ "INVALID (F0)", 0x40000F0, true, false, 0xDEAD, 0 },
{ "INVALID (F2)", 0x40000F2, true, false, 0xDEAD, 0 },
{ "INVALID (F4)", 0x40000F4, true, false, 0xDEAD, 0 },
{ "INVALID (F6)", 0x40000F6, true, false, 0xDEAD, 0 },
{ "INVALID (F8)", 0x40000F8, true, false, 0xDEAD, 0 },
{ "INVALID (FA)", 0x40000FA, true, false, 0xDEAD, 0 },
{ "INVALID (FC)", 0x40000FC, true, false, 0xDEAD, 0 },
{ "INVALID (FE)", 0x40000FE, true, false, 0xDEAD, 0 },
{ "INVALID (100C)", 0x400100C, true, false, 0xDEAD, 0 },
};
static const u32 nTests = sizeof(ioReadTests) / sizeof(*ioReadTests);
static unsigned passes;
static unsigned totalResults;
static u16 _runTest(const struct IOReadTest* test) {
REG_IME = 0;
activeTestInfo.subtestId = 0;
vu16* address = (vu16*) test->address;
u16 original;
if (test->restoreAfter) {
original = *address;
}
if (test->storeFirst) {
*address = 0xFFFF;
}
u16 result;
__asm__ __volatile__ (
"ldrh %[result], %[address] \n"
"b 1f\n"
".word 0xDEADDEAD \n"
"1: \n"
: [result]"=r"(result)
: [address]"m"(*address)
);
if (test->restoreAfter) {
*address = original;
} else {
*address = test->restore;
}
activeTestInfo.subtestId = -1;
REG_IME = 1;
return result;
}
static void printResults(int offset, int line, const struct IOReadTest* test) {
static const int base = GRID_STRIDE * 3;
if (offset > line * 2 || base + GRID_STRIDE * (line * 2 - offset + 1) > 576) {
return;
}
snprintf(&textGrid[base + GRID_STRIDE * (line * 2 - offset)], 31, "%s:", test->testName);
u16 value = _runTest(test);
if (value == test->expected) {
snprintf(&textGrid[base + GRID_STRIDE * (line * 2 - offset + 1) + 4], 28, "%04X PASS", value);
} else {
snprintf(&textGrid[base + GRID_STRIDE * (line * 2 - offset + 1) + 4], 28, "%04X != %04X", value, test->expected);
}
}
static void doResult(const struct IOReadTest* test) {
u16 value = _runTest(test);
if (value != test->expected) {
debugprintf("FAIL: %s", test->testName);
savprintf("%s: Got 0x%04X vs 0x%04X: FAIL", test->testName, value, test->expected);
} else {
debugprintf("PASS: %s", test->testName);
++passes;
}
++totalResults;
}
static size_t listIOReadSuite(const char** names, size_t size, size_t offset) {
size_t i;
for (i = 0; i < size; ++i) {
if (i + offset >= nTests) {
break;
}
names[i] = ioReadTests[i + offset].testName;
}
return i;
}
static void runIOReadSuite(void) {
passes = 0;
totalResults = 0;
const struct IOReadTest* activeTest = 0;
REG_SOUNDCNT_X = 0x80;
int i;
for (i = 0; i < nTests; ++i) {
activeTestInfo.testId = i;
activeTest = &ioReadTests[i];
doResult(activeTest);
}
activeTestInfo.testId = -1;
REG_SOUNDCNT_X = 0;
}
static void showIOReadSuite(size_t index) {
const struct IOReadTest* activeTest = &ioReadTests[index];
size_t resultIndex = 0;
REG_SOUNDCNT_X = 0x80;
activeTestInfo.testId = index;
while (1) {
memset(&textGrid[GRID_STRIDE], 0, sizeof(textGrid) - GRID_STRIDE);
scanKeys();
u16 keys = keysDownRepeat();
if (keys & KEY_B) {
return;
}
if (keys & KEY_UP) {
if (resultIndex > 0) {
--resultIndex;
}
}
if (keys & KEY_DOWN) {
if (resultIndex < 0) {
++resultIndex;
}
}
printResults(0, resultIndex, activeTest);
updateTextGrid();
}
activeTestInfo.testId = -1;
REG_SOUNDCNT_X = 0;
}
const struct TestSuite ioReadTestSuite = {
.name = "I/O read tests",
.run = runIOReadSuite,
.list = listIOReadSuite,
.show = showIOReadSuite,
.nTests = sizeof(ioReadTests) / sizeof(*ioReadTests),
.passes = &passes,
.totalResults = &totalResults
};