Nugget
Bare-metal libraries and examples for the original PlayStation
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heap.c
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1/*
2
3MIT License
4
5Copyright (c) 2020 PCSX-Redux authors
6
7Permission is hereby granted, free of charge, to any person obtaining a copy
8of this software and associated documentation files (the "Software"), to deal
9in the Software without restriction, including without limitation the rights
10to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
11copies of the Software, and to permit persons to whom the Software is
12furnished to do so, subject to the following conditions:
13
14The above copyright notice and this permission notice shall be included in all
15copies or substantial portions of the Software.
16
17THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
18IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
19FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
20AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
21LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
22OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
23SOFTWARE.
24
25*/
26
27#include <stdint.h>
28
30
31// clang-format off
32
34 static uint32_t s_heap[1024];
35)
36
37CESTER_TEST(userHeapReuse, test_instance,
38 syscall_userInitheap(s_heap, sizeof(s_heap));
39 void *a = syscall_userMalloc(256);
40 void *b = syscall_userMalloc(256);
41 cester_assert_not_null(a);
42 cester_assert_not_null(b);
43 cester_assert_ptr_not_equal(a, b);
44 syscall_userFree(a);
45 void *c = syscall_userMalloc(256);
47 syscall_userFree(b);
48 syscall_userFree(c);
49)
50
51// WipEout (USA) initializes the user heap, writes over all of it with its own
52// allocator, then hands pointers into it to free. The retail BIOS returns.
53CESTER_TEST(userHeapFreeAfterOverwrite, test_instance,
54 syscall_userInitheap(s_heap, sizeof(s_heap));
55 for (unsigned i = 0; i < 1024; i++) s_heap[i] = 0;
56 syscall_userFree(&s_heap[256]);
57 syscall_userFree(&s_heap[512]);
58 syscall_userMalloc(64);
60)
CESTER_TEST(cddaLevelHalf, test_instances, static const uint8_t atv[4]={0x40, 0x00, 0x40, 0x00};unsigned changes=0;int peak=cddaPeak(atv, 1, &changes);ramsyscall_printf("CD-DA level at half ATV: peak %i, %u sign changes\n", peak, changes);cester_assert_int_ge(peak, 11300);cester_assert_int_le(peak, 11800);cester_assert_uint_ge(changes, 4);) CESTER_TEST(cddaLevelClipped
CESTER_BODY(static uint16_t s_cddaCapture;static int cddaSpuDma(uint32_t spuAddr, void *buf, uint32_t bytes, int isRead) { const uint16_t tsa=spuAddr > > 3;const uint16_t mode=isRead ? 0x30 :0x20;SPU_RAM_DTA=tsa;for(int i=0;i< 0xf01 &&SPU_RAM_DTA !=tsa;i++);SPU_CTRL=(SPU_CTRL &~0x30)|mode;for(volatile int i=0;i< 60;i++);for(int i=0;i< 0xf01 &&(SPU_STATUS &0x30) !=mode;i++);CDDA_SPU_DELAY=(CDDA_SPU_DELAY &0xf0ffffff)|(isRead ? 0x22000000 :0x20000000);DMA_CTRL[DMA_SPU].MADR=(uint32_t) buf &0x1fffffff;DMA_CTRL[DMA_SPU].BCR=((bytes > > 6)<< 16)|0x10;DMA_CTRL[DMA_SPU].CHCR=isRead ? 0x01000200 :0x01000201;int ok=0;for(unsigned t=0;t< 4000000u;t++) { if((DMA_CTRL[DMA_SPU].CHCR &0x01000000)==0) { ok=1;break;} } SPU_CTRL=SPU_CTRL &~0x30;for(volatile int i=0;i< 60;i++);return ok;} static int cddaSimpleCmd(uint8_t cmd) { uint8_t response[16];CDROM_REG0=0;CDROM_REG1=cmd;uint32_t timeout=2000000;int ok=waitCDRomIRQWithTimeout(&timeout);ackCDRomCause();readResponse(response);return ok;} static void cddaWaitPauseComplete() { initializeTime();uint32_t elapsed=0;while(elapsed< 5000000u) { uint32_t budget=200000u;int ok=waitCDRomIRQWithTimeout(&budget);elapsed=budget;if(!ok) continue;uint8_t cause=ackCDRomCause();uint8_t response[16];readResponse(response);if(cause==2) return;} } static int cddaAudioSetup(const uint8_t atv[4], int demute) { if(!resetCDRom()) return 0;DPCR|=0x000b0000;SPU_CTRL=0;for(volatile int i=0;i< 20000;i++);SPU_VOL_MAIN_LEFT=0;SPU_VOL_MAIN_RIGHT=0;SPU_KEY_OFF_LOW=0xffff;SPU_KEY_OFF_HIGH=0xffff;SPU_RAM_DTC=4;SPU_CTRL=0x8001;for(volatile int i=0;i< 20000;i++);for(int i=0;i< 0x400;i++) s_cddaCapture[i]=CDDA_MARKER;if(!cddaSpuDma(0x000, s_cddaCapture, 0x800, 0)) return 0;if(!cddaSimpleCmd(demute ? CDL_DEMUTE :CDL_MUTE)) return 0;CDROM_REG0=2;CDROM_REG2=atv[0];CDROM_REG3=atv[1];CDROM_REG0=3;CDROM_REG1=atv[2];CDROM_REG2=atv[3];CDROM_REG0=3;CDROM_REG3=0x20;CDROM_REG0=0;SPU_VOL_CD_LEFT=0x7fff;SPU_VOL_CD_RIGHT=0x7fff;SPU_CTRL=SPU_CTRL|0x8001;return 1;} static int cddaBufferPeak(unsigned *signChanges) { int peak=0;unsigned changes=0;int prev=0;for(int i=0;i< 0x200;i++) { int v=(int16_t) s_cddaCapture[i];int a=v< 0 ? -v :v;if(a > peak) peak=a;int sign=v >=0 ? 1 :-1;if(i &&sign !=prev) changes++;prev=sign;} *signChanges=changes;return peak;} static int cddaCapturePeak(unsigned *signChanges) { int peak=0;for(unsigned attempt=0;attempt< 8;attempt++) { if(attempt) { initializeTime();while(updateTime()< 250000u);} if(!cddaSpuDma(0x000, s_cddaCapture, 0x800, 1)) return -1;peak=cddaBufferPeak(signChanges);if(peak) { if(attempt) ramsyscall_printf("capture was empty %u time(s) before audio\n", attempt);break;} } return peak;} static int cddaPeak(const uint8_t atv[4], int demute, unsigned *signChanges) { if(!cddaAudioSetup(atv, demute)) return -1;if(!setMode(0)) return -1;CDROM_REG0=0;CDROM_REG2=0x02;if(!cddaSimpleCmd(CDL_PLAY)) return -1;initializeTime();while(updateTime()< 1500000u);int peak=cddaCapturePeak(signChanges);CDROM_REG0=0;CDROM_REG1=CDL_PAUSE;cddaWaitPauseComplete();CDROM_REG0=0;CDROM_REG2=0x00;CDROM_REG2=0x02;CDROM_REG2=0x16;if(cddaSimpleCmd(CDL_SETLOC) &&cddaSimpleCmd(CDL_SEEKL)) cddaWaitPauseComplete();return peak;}[0x400])
Definition cdda.c:37
test_instance
Definition cdlforward.c:59
cester_assert_true(gotComplete)
uint8_t b
Definition gte-depthcue.c:41
int i
Definition gte-regio.c:299
int a
Definition mktest.py:134
cester_assert_ptr_equal(b, s)
static int c
Definition syscalls.h:172