Macintosh-Tools
/
dingusppc
mirror of https://github.com/dingusdev/dingusppc.git
1
0
Fork 0
Code Issues Projects Releases Wiki Activity

Mask fixes for sr(*)

This commit is contained in:
dingusdev 2024-02-20 18:15:08 -07:00
parent 35bc1bcb44
commit 1d938c93b6
1 changed files with 6 additions and 6 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

12
cpu/ppc/poweropcodes.cpp
View File

@ -367,7 +367,7 @@ void dppc_interpreter::power_sraiq() {
unsigned rot_sh = (ppc_cur_instruction >> 11) & 0x1F;
uint32_t mask = (1 << rot_sh) - 1;
ppc_result_a = (int32_t)ppc_result_d >> rot_sh;
ppc_state.spr[SPR::MQ] = ((ppc_result_d << rot_sh) | (ppc_result_d >> (32 - rot_sh)));
ppc_state.spr[SPR::MQ] = (ppc_result_d >> rot_sh) | (ppc_result_d << (32 - rot_sh));
if ((ppc_result_d & 0x80000000UL) && (ppc_result_d & mask)) {
ppc_state.spr[SPR::XER] |= 0x20000000UL;
@ -394,7 +394,7 @@ void dppc_interpreter::power_sraq() {
ppc_state.spr[SPR::XER] &= 0xDFFFFFFFUL;
}
ppc_state.spr[SPR::MQ] = ((ppc_result_d << ppc_result_b) | (ppc_result_d >> (ppc_result_b)));
ppc_state.spr[SPR::MQ] = (ppc_result_d >> rot_sh) | (ppc_result_d << (32 - rot_sh));
if (rc_flag)
ppc_changecrf0(ppc_result_a);
@ -408,7 +408,7 @@ void dppc_interpreter::power_sre() {
unsigned rot_sh = ppc_result_b & 31;
ppc_result_a = ppc_result_d >> rot_sh;
ppc_state.spr[SPR::MQ] = ((ppc_result_d << rot_sh) | (ppc_result_d >> (32 - rot_sh)));
ppc_state.spr[SPR::MQ] = (ppc_result_d >> rot_sh) | (ppc_result_d << (32 - rot_sh));
if (rc_flag)
ppc_changecrf0(ppc_result_a);
@ -464,7 +464,7 @@ void dppc_interpreter::power_srliq() {
ppc_grab_regssa();
unsigned rot_sh = (ppc_cur_instruction >> 11) & 31;
uint32_t r = ((ppc_result_d << rot_sh) | (ppc_result_d >> (32 - rot_sh)));
uint32_t r = (ppc_result_d >> rot_sh) | (ppc_result_d << (32 - rot_sh));
unsigned mask = power_rot_mask(rot_sh, 31);
ppc_result_a = ((r & mask) | (ppc_state.spr[SPR::MQ] & ~mask));
@ -479,7 +479,7 @@ void dppc_interpreter::power_srliq() {
void dppc_interpreter::power_srlq() {
ppc_grab_regssab();
unsigned rot_sh = ppc_result_b & 31;
uint32_t r = ((ppc_result_d << rot_sh) | (ppc_result_d >> (32 - rot_sh)));
uint32_t r = (ppc_result_d >> rot_sh) | (ppc_result_d << (32 - rot_sh));
unsigned mask = power_rot_mask(rot_sh, 31);
if (ppc_result_b >= 0x20) {
@ -505,7 +505,7 @@ void dppc_interpreter::power_srq() {
ppc_result_a = ppc_result_d >> rot_sh;
}
ppc_state.spr[SPR::MQ] = ((ppc_result_d << rot_sh) | (ppc_result_d >> (32 - rot_sh)));
ppc_state.spr[SPR::MQ] = (ppc_result_d >> rot_sh) | (ppc_result_d << (32 - rot_sh));
if (rc_flag)
ppc_changecrf0(ppc_result_a);