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This commit is contained in:
espes 2015-06-12 18:38:42 +10:00
parent 9f3c4f70e9
commit 1d568ccecf
2 changed files with 326 additions and 326 deletions
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36
hw/xbox/dsp/dsp_cpu.c
View File

@ -68,12 +68,12 @@ static void dsp_stack_pop(dsp_core_t* dsp, uint32_t *curpc, uint32_t *cursr);
static void dsp_compute_ssh_ssl(dsp_core_t* dsp);
/* 56bits arithmetic */
static uint16_t dsp_abs56(dsp_core_t* dsp, uint32_t *dest);
static uint16_t dsp_asl56(dsp_core_t* dsp, uint32_t *dest);
static uint16_t dsp_asr56(dsp_core_t* dsp, uint32_t *dest);
static uint16_t dsp_add56(dsp_core_t* dsp, uint32_t *source, uint32_t *dest);
static uint16_t dsp_sub56(dsp_core_t* dsp, uint32_t *source, uint32_t *dest);
static void dsp_mul56(dsp_core_t* dsp, uint32_t source1, uint32_t source2, uint32_t *dest, uint8_t signe);
static uint16_t dsp_abs56(uint32_t *dest);
static uint16_t dsp_asl56(uint32_t *dest);
static uint16_t dsp_asr56(uint32_t *dest);
static uint16_t dsp_add56(uint32_t *source, uint32_t *dest);
static uint16_t dsp_sub56(uint32_t *source, uint32_t *dest);
static void dsp_mul56(uint32_t source1, uint32_t source2, uint32_t *dest, uint8_t signe);
static void dsp_rnd56(dsp_core_t* dsp, uint32_t *dest);
static uint32_t dsp_signextend(int bits, uint32_t v);
@ -1145,7 +1145,7 @@ static void dsp_compute_ssh_ssl(dsp_core_t* dsp)
/* source,dest[1] is 47:24 */
/* source,dest[2] is 23:00 */
static uint16_t dsp_abs56(dsp_core_t* dsp, uint32_t *dest)
static uint16_t dsp_abs56(uint32_t *dest)
{
uint32_t zerodest[3];
uint16_t newsr;
@ -1155,7 +1155,7 @@ static uint16_t dsp_abs56(dsp_core_t* dsp, uint32_t *dest)
if (dest[0] & (1<<7)) {
zerodest[0] = zerodest[1] = zerodest[2] = 0;
newsr = dsp_sub56(dsp, dest, zerodest);
newsr = dsp_sub56(dest, zerodest);
dest[0] = zerodest[0];
dest[1] = zerodest[1];
@ -1167,7 +1167,7 @@ static uint16_t dsp_abs56(dsp_core_t* dsp, uint32_t *dest)
return newsr;
}
static uint16_t dsp_asl56(dsp_core_t* dsp, uint32_t *dest)
static uint16_t dsp_asl56(uint32_t *dest)
{
uint16_t overflow, carry;
@ -1191,7 +1191,7 @@ static uint16_t dsp_asl56(dsp_core_t* dsp, uint32_t *dest)
return (overflow<<DSP_SR_L)|(overflow<<DSP_SR_V)|(carry<<DSP_SR_C);
}
static uint16_t dsp_asr56(dsp_core_t* dsp, uint32_t *dest)
static uint16_t dsp_asr56(uint32_t *dest)
{
uint16_t carry;
@ -1211,7 +1211,7 @@ static uint16_t dsp_asr56(dsp_core_t* dsp, uint32_t *dest)
return (carry<<DSP_SR_C);
}
static uint16_t dsp_add56(dsp_core_t* dsp, uint32_t *source, uint32_t *dest)
static uint16_t dsp_add56(uint32_t *source, uint32_t *dest)
{
uint16_t overflow, carry, flg_s, flg_d, flg_r;
@ -1237,7 +1237,7 @@ static uint16_t dsp_add56(dsp_core_t* dsp, uint32_t *source, uint32_t *dest)
return (overflow<<DSP_SR_L)|(overflow<<DSP_SR_V)|(carry<<DSP_SR_C);
}
static uint16_t dsp_sub56(dsp_core_t* dsp, uint32_t *source, uint32_t *dest)
static uint16_t dsp_sub56(uint32_t *source, uint32_t *dest)
{
uint16_t overflow, carry, flg_s, flg_d, flg_r, dest_save;
@ -1264,7 +1264,7 @@ static uint16_t dsp_sub56(dsp_core_t* dsp, uint32_t *source, uint32_t *dest)
return (overflow<<DSP_SR_L)|(overflow<<DSP_SR_V)|(carry<<DSP_SR_C);
}
static void dsp_mul56(dsp_core_t* dsp, uint32_t source1, uint32_t source2, uint32_t *dest, uint8_t signe)
static void dsp_mul56(uint32_t source1, uint32_t source2, uint32_t *dest, uint8_t signe)
{
uint32_t part[4], zerodest[3], value;
@ -1313,12 +1313,12 @@ static void dsp_mul56(dsp_core_t* dsp, uint32_t source1, uint32_t source2, uint3
}
/* Get rid of extra sign bit */
dsp_asl56(dsp, dest);
dsp_asl56(dest);
if (signe) {
zerodest[0] = zerodest[1] = zerodest[2] = 0;
dsp_sub56(dsp, dest, zerodest);
dsp_sub56(dest, zerodest);
dest[0] = zerodest[0];
dest[1] = zerodest[1];
@ -1336,7 +1336,7 @@ static void dsp_rnd56(dsp_core_t* dsp, uint32_t *dest)
if (dsp->registers[DSP_REG_SR] & (1<<DSP_SR_S0)) {
rnd_const[1] = 1;
rnd_const[2] = 0;
dsp_add56(dsp, rnd_const, dest);
dsp_add56(rnd_const, dest);
if ((dest[2]==0) && ((dest[1] & 1) == 0)) {
dest[1] &= (0xffffff - 0x3);
@ -1348,7 +1348,7 @@ static void dsp_rnd56(dsp_core_t* dsp, uint32_t *dest)
else if (dsp->registers[DSP_REG_SR] & (1<<DSP_SR_S1)) {
rnd_const[1] = 0;
rnd_const[2] = (1<<22);
dsp_add56(dsp, rnd_const, dest);
dsp_add56(rnd_const, dest);
if ((dest[2] & 0x7fffff) == 0){
dest[2] = 0;
@ -1359,7 +1359,7 @@ static void dsp_rnd56(dsp_core_t* dsp, uint32_t *dest)
else {
rnd_const[1] = 0;
rnd_const[2] = (1<<23);
dsp_add56(dsp, rnd_const, dest);
dsp_add56(rnd_const, dest);
if (dest[2] == 0) {
dest[1] &= 0xfffffe;

616
hw/xbox/dsp/dsp_emu.inl
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