mirror of
https://github.com/open-goal/jak-project
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ManDude
fa061ef7eb
* [timer decomp] preliminary decomp * [goal-lib] add inplace macros for logior, logxor, lognor and logand * [timer decomp] Finish decomp for now * [timer decomp] OCD whitespace * [all-types] fix type consistency Sorry mr. decompiler but you will have to take the hit * [timer decomp] Fix more type consistency * [timer decomp] ACTUALLY fix it + script so I don't forget * [timer] automatically choose gpr for rlet's
129 lines
4.0 KiB
Common Lisp
129 lines
4.0 KiB
Common Lisp
;;-*-Lisp-*-
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(in-package goal)
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;; name: timer-h.gc
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;; name in dgo: timer-h
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;; dgos: GAME, ENGINE
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;; The Emotion Engine has 4 hardware timers.
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(defconstant EE_TIMER0 #x10000000) ;; has HOLD register!
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(defconstant EE_TIMER1 #x10000800) ;; has HOLD register!
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(defconstant EE_TIMER2 #x10001000) ;; does NOT have HOLD register!
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(defconstant EE_TIMER3 #x10001800) ;; does NOT have HOLD register!
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;; this matches the Tn_MODE register structure of the ps2 EE timers.
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;; Only the lower 32 bits of these registers are usable, and the upper 16 hardwired to zero
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;; TODO : define constants for these bitfields?
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(deftype timer-mode (uint32)
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(;(data uint32 :offset 0 :size 32)
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(clks uint8 :offset 0 :size 2)
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(gate uint8 :offset 2 :size 1)
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(gats uint8 :offset 3 :size 1)
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(gatm uint8 :offset 4 :size 2)
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(zret uint8 :offset 6 :size 1)
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(cue uint8 :offset 7 :size 1)
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(cmpe uint8 :offset 8 :size 1)
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(ovfe uint8 :offset 9 :size 1)
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(equf uint8 :offset 10 :size 1)
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(ovff uint8 :offset 11 :size 1)
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)
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:method-count-assert 9
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:size-assert #x4
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:flag-assert #x900000004
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)
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;; this matches an EE timer (without a HOLD register, timers 2 and 3)
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;; Each register is 128-bits wide, but only the lower 32-bits are usable, and the upper
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;; 16-bits of that are hardwired to zero.
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(deftype timer-bank (structure)
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((count uint32 :offset-assert 0)
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(mode timer-mode :offset 16)
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(comp uint32 :offset 32)
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)
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:method-count-assert 9
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:size-assert #x24
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:flag-assert #x900000024
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)
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;; this matches an EE timer (with a HOLD register, timers 0 and 1)
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(deftype timer-hold-bank (timer-bank)
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((hold uint32 :offset 48)
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)
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:method-count-assert 9
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:size-assert #x34
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:flag-assert #x900000034
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)
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;; stopwatches are used to measure CPU clock cycles
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(deftype stopwatch (basic)
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((prev-time-elapsed uint64 :offset-assert 8)
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(start-time uint64 :offset-assert 16)
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(begin-level int32 :offset-assert 24)
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)
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:method-count-assert 9
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:size-assert #x1c
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:flag-assert #x90000001c
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)
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;; Confusing! What IS this measuring exactly? Hmm...
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(define *ticks-per-frame* (/ 2500000 256)) ;; 2 500 000 / 256 = 9765
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(defun timer-init ((timer timer-bank) (mode timer-mode))
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"Initiate a timer, start counting at a rate of 1 every 256 bus clocks (BUSCLK: ~147.456MHz)."
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(set! (-> timer mode) mode)
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(set! (-> timer count) 0)
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)
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;; segfaults OpenGOAL as it does not support ps2 EE timers
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; (timer-init (the-as timer-bank EE_TIMER1) (the-as timer-mode #x82))
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(deftype profile-frame (structure)
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((name basic :offset-assert 0)
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(time-stamp uint32 :offset-assert 4)
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(color uint32 :offset-assert 8)
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(r uint8 :offset 8) ;; TODO : verify colors
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(g uint8 :offset 9) ;; TODO (again) : these are actually bitfields
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(b uint8 :offset 10)
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)
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:method-count-assert 9
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:size-assert #xc
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:flag-assert #x90000000c
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)
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(defmethod inspect profile-frame ((obj profile-frame))
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(let ((this-frame obj))
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(format #t "[~8x] profile-frame~%" this-frame)
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(format #t "~Tname: ~A~%" (-> this-frame name))
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(format #t "~Ttime-stamp: ~D~%" (-> this-frame time-stamp))
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(format #t "~Tcolor: ~D ~D ~D~%" (-> this-frame r) (-> this-frame g) (-> this-frame b))
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)
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obj
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)
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(deftype profile-bar (basic)
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((profile-frame-count int32 :offset-assert 4)
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(cache-time uint64 :offset-assert 8)
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(data profile-frame 1024 :inline :offset-assert 16)
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)
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:method-count-assert 14
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:size-assert #x4010
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:flag-assert #xe00004010
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(:methods
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(get-last-frame-time-stamp (profile-bar) uint 9)
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(dummy-10 () none 10)
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(dummy-11 () none 11)
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(dummy-12 () none 12)
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(dummy-13 () none 13)
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)
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)
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;; tentative name
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(defmethod get-last-frame-time-stamp profile-bar ((obj profile-bar))
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"Returns the timestamp of the last (non-remaining) frame on the profiler bar."
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(-> obj data (+ (-> obj profile-frame-count) -2) time-stamp)
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)
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