ShuriZma
/
bsnes
mirror of https://github.com/bsnes-emu/bsnes.git
1
0
Fork 0
Code Issues Packages Projects Releases Wiki Activity
bsnes/sfc/alt/smp/timing.cpp

27 lines
617 B
C++
Raw Normal View History

Update to v078r04 release. byuu says: Changelog: - file and slot load dialogs should now have perfectly square buttons that are based on the platform's default button height. - cleaned up bsnes/Accuracy SMP source code (removed old !! stuff, stage 3 timer is now uint4, memory access switch/case cleaned up, sSMPTimer->Timer, etc.) - cleaned up bsnes/Accuracy memory access functions (read/writestack -> read/writesp, read/writeaddr -> read/write) - minor optimization to bsnes/Performance SMP core in cycle-mode
2011-05-05 11:40:22 +00:00
template<unsigned cycle_frequency>
void SMP::Timer<cycle_frequency>::tick() {
if(++stage1_ticks < cycle_frequency) return;
stage1_ticks = 0;
if(enable == false) return;
if(++stage2_ticks != target) return;
stage2_ticks = 0;
stage3_ticks = (stage3_ticks + 1) & 15;
}
Update to v078r03 release. byuu says: I apparently wasted two days writing that SMP core for nothing. I had a perfectly well-written and well-tested core in bsnes v045. The old opcode.b files that were a cycle-based markup language. So I took that core, and wrote new parsers to generate both opcode-based (one switch) and cycle-based (two switch) cores. Throw in a little #define magic around CYCLE_ACCURATE, and it is compile-time toggleable. EWJ2's bug was due to not resetting the timer variables, and Bahamut Lagoon's was due to dividing timer frequencies by 3, but failing to remove the 0->1 transition phase (should have done the latter and divided by two.) Anyway, all fixed up.
2011-05-05 11:37:46 +00:00
template<unsigned cycle_frequency>
void SMP::Timer<cycle_frequency>::tick(unsigned clocks) {
stage1_ticks += clocks;
if(stage1_ticks < cycle_frequency) return;
Update to v078r01 release. byuu says: Started on a new SMP core for bsnes/Performance. I wanted to start clean, and only copied over the debugger+disassembler portions from the existing version. I figured that if I took the existing one and tried trimming it down, that it'd end up with too much old baggage. But so far, the opcodes are looking mostly the same anyway, only I'm using #defines and a switch table in place of the template function trickery. I have enough written now that I can run Zelda 3 at least (although it gets stuck in a loop immediately after.) No real point in comparing speed yet, because it'll definitely go down as it becomes more complete.
2011-05-02 13:53:16 +00:00
Update to v078r03 release. byuu says: I apparently wasted two days writing that SMP core for nothing. I had a perfectly well-written and well-tested core in bsnes v045. The old opcode.b files that were a cycle-based markup language. So I took that core, and wrote new parsers to generate both opcode-based (one switch) and cycle-based (two switch) cores. Throw in a little #define magic around CYCLE_ACCURATE, and it is compile-time toggleable. EWJ2's bug was due to not resetting the timer variables, and Bahamut Lagoon's was due to dividing timer frequencies by 3, but failing to remove the 0->1 transition phase (should have done the latter and divided by two.) Anyway, all fixed up.
2011-05-05 11:37:46 +00:00
stage1_ticks -= cycle_frequency;
Update to v078r01 release. byuu says: Started on a new SMP core for bsnes/Performance. I wanted to start clean, and only copied over the debugger+disassembler portions from the existing version. I figured that if I took the existing one and tried trimming it down, that it'd end up with too much old baggage. But so far, the opcodes are looking mostly the same anyway, only I'm using #defines and a switch table in place of the template function trickery. I have enough written now that I can run Zelda 3 at least (although it gets stuck in a loop immediately after.) No real point in comparing speed yet, because it'll definitely go down as it becomes more complete.
2011-05-02 13:53:16 +00:00
if(enable == false) return;
Update to v078r03 release. byuu says: I apparently wasted two days writing that SMP core for nothing. I had a perfectly well-written and well-tested core in bsnes v045. The old opcode.b files that were a cycle-based markup language. So I took that core, and wrote new parsers to generate both opcode-based (one switch) and cycle-based (two switch) cores. Throw in a little #define magic around CYCLE_ACCURATE, and it is compile-time toggleable. EWJ2's bug was due to not resetting the timer variables, and Bahamut Lagoon's was due to dividing timer frequencies by 3, but failing to remove the 0->1 transition phase (should have done the latter and divided by two.) Anyway, all fixed up.
2011-05-05 11:37:46 +00:00
Update to v078r04 release. byuu says: Changelog: - file and slot load dialogs should now have perfectly square buttons that are based on the platform's default button height. - cleaned up bsnes/Accuracy SMP source code (removed old !! stuff, stage 3 timer is now uint4, memory access switch/case cleaned up, sSMPTimer->Timer, etc.) - cleaned up bsnes/Accuracy memory access functions (read/writestack -> read/writesp, read/writeaddr -> read/write) - minor optimization to bsnes/Performance SMP core in cycle-mode
2011-05-05 11:40:22 +00:00
if(++stage2_ticks != target) return;
Update to v078r01 release. byuu says: Started on a new SMP core for bsnes/Performance. I wanted to start clean, and only copied over the debugger+disassembler portions from the existing version. I figured that if I took the existing one and tried trimming it down, that it'd end up with too much old baggage. But so far, the opcodes are looking mostly the same anyway, only I'm using #defines and a switch table in place of the template function trickery. I have enough written now that I can run Zelda 3 at least (although it gets stuck in a loop immediately after.) No real point in comparing speed yet, because it'll definitely go down as it becomes more complete.
2011-05-02 13:53:16 +00:00
stage2_ticks = 0;
Update to v078r04 release. byuu says: Changelog: - file and slot load dialogs should now have perfectly square buttons that are based on the platform's default button height. - cleaned up bsnes/Accuracy SMP source code (removed old !! stuff, stage 3 timer is now uint4, memory access switch/case cleaned up, sSMPTimer->Timer, etc.) - cleaned up bsnes/Accuracy memory access functions (read/writestack -> read/writesp, read/writeaddr -> read/write) - minor optimization to bsnes/Performance SMP core in cycle-mode
2011-05-05 11:40:22 +00:00
stage3_ticks = (stage3_ticks + 1) & 15;
Update to v078r01 release. byuu says: Started on a new SMP core for bsnes/Performance. I wanted to start clean, and only copied over the debugger+disassembler portions from the existing version. I figured that if I took the existing one and tried trimming it down, that it'd end up with too much old baggage. But so far, the opcodes are looking mostly the same anyway, only I'm using #defines and a switch table in place of the template function trickery. I have enough written now that I can run Zelda 3 at least (although it gets stuck in a loop immediately after.) No real point in comparing speed yet, because it'll definitely go down as it becomes more complete.
2011-05-02 13:53:16 +00:00
}