mirror of
https://github.com/JorjBauer/aiie.git
synced 2025-04-03 10:31:58 +00:00
only re-read joystick for mouse posn while mouse is enabled; added comments in mouse rom
This commit is contained in:
Jorj Bauer
parent
bab3560273
commit
b6cd790fa9
@ -193,3 +193,8 @@ VMKeyboard * AppleVM::getKeyboard()
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{
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return keyboard;
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}
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bool AppleVM::isMouseEnabled()
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{
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return mouse->isEnabled();
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}
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@ -35,6 +35,8 @@ class AppleVM : public VM {
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virtual VMKeyboard *getKeyboard();
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bool isMouseEnabled();
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DiskII *disk6;
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HD32 *hd32;
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protected:
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119
apple/mouse.cpp
119
apple/mouse.cpp
@ -31,7 +31,9 @@ Mouse::Mouse()
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status = 0;
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interruptsTriggered = 0;
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lastX = lastY = 0;
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lastXForInt = lastYForInt = 0;
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lastButton = false;
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lastButtonForInt = false;
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}
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Mouse::~Mouse()
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@ -125,7 +127,7 @@ void Mouse::writeSwitches(uint8_t s, uint8_t v)
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break;
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case SW_W_INIT:
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v &= 0x03; // just the low 3 bits apparently?
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printf("Simple init: value is 0x%X\n", v);
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// printf("Simple init: value is 0x%X\n", v);
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status = v;
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g_vm->getMMU()->write(0x7f8 + 4, v);
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break;
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@ -158,33 +160,33 @@ void Mouse::loadROM(uint8_t *toWhere)
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*
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* ; $c400 is the entry point for PR#4
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* $C400 2C 58 FF BIT $FF58
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* $C403 70 1B BVS $C420
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* $C403 70 1B BVS IOHandler
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* ; $c405 is the entry point for IN#4 when we set KSW
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* $C405 38 SEC
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* $C406 90 18 BCC $C420
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* $C406 90 18 BCC IOHandler
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* $C408 B8 CLV
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* $C409 50 15 BVC $C420 ; always branch
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* $C409 50 15 BVC IOHandler ; always branch
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* $C40B 01 20 8D 8D 8D ; data (ID bytes & such)
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* $C410 8D 00 60 68 76 7B 80 85 ; data (lookup table of entrypoints)
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* $C418 8F 94 8D 8D 8D 8D 8D 8D ; data (lookup table of entrypoints)
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* ; $c420 is the I/O handler
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* $C420 48 PHA
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* ; IOHandler ORG $c420
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* $C420 48 PHA ; save registers on stack
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* $C421 98 TYA
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* $C422 48 PHA
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* $C423 8A TXA
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* $C424 48 PHA
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* $C425 08 PHP
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* $C426 78 SEI
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* $C427 20 58 FF JSR $FF58
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* $C42A BA TSX
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* $C42B BD 00 01 LDA $100,X
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* $C42E AA TAX
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* $C42F 0A ASL
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* $C426 78 SEI ; disable interrupts
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* $C427 20 58 FF JSR $FF58 ; JSR to this well-known location that has
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* $C42A BA TSX ; an RTS (normally). Then when we get
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* $C42B BD 00 01 LDA $100,X ; back, pull our address off the stack
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* $C42E AA TAX ; and save the high byte in X
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* $C42F 0A ASL
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* $C430 0A ASL
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* $C431 0A ASL
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* $C432 0A ASL
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* $C433 A8 TAY
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* $C434 28 PLP
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* $C433 A8 TAY ; and (high byte << 4) in Y
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* $C434 28 PLP ; restore interrupt state
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* $C435 50 0F BVC $C446
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* $C437 A5 38 LDA $0
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* $C439 D0 0D BNE $C448
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@ -193,9 +195,9 @@ void Mouse::loadROM(uint8_t *toWhere)
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* $C43E D0 08 BNE $C448
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* $C440 A9 05 LDA #$0
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* $C442 85 38 STA $0
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* $C444 D0 0B BNE $C451
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* $C446 B0 09 BCS $C451
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* $C448 68 PLA
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* $C444 D0 0B BNE SendInputToDOS
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* $C446 B0 09 BCS SendInputToDOS
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* $C448 68 PLA ; restore registers
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* $C449 AA TAX
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* $C44A 68 PLA
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* $C44B EA NOP
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@ -204,67 +206,68 @@ void Mouse::loadROM(uint8_t *toWhere)
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* $C44E EA NOP
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* $C44F EA NOP
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* $C450 60 RTS
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* ; SendInputToDOS ORG $c451
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* $C451 EA NOP
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* $C452 EA NOP
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* $C453 EA NOP
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* $C454 68 PLA
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* $C455 BD 38 06 LDA $638,X
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* $C458 AA TAX
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* $C455 BD 38 06 LDA $638,X ; X is $C4, so this is $6F8+n - which is
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* $C458 AA TAX ; a reserved hole
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* $C459 68 PLA
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* $C45A A8 TAY
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* $C45B 68 PLA
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* $C45C BD 00 02 LDA $200,X
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* $C45C BD 00 02 LDA $200,X ; keyboard buffer output
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* $C45F 60 RTS
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* ; $c460 is SetMouse
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* ; SetMouse ORG $c460
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* $C460 C9 10 CMP #$0
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* $C462 B0 29 BCS $C48D
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* $C464 8D CF C0 STA $C0CF
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* $C462 B0 29 BCS ExitWithError
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* $C464 8D CF C0 STA $C0CF ; soft switch 0x0F invokes SetMouse
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* $C467 60 RTS
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* ; $c468 is ServeMouse
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* ; ServeMouse ORG $c468
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* $C468 48 PHA
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* $C469 18 CLC
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* $C46A 90 2D BCC $C499 ; jump to ServeMouseWorker
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* ; $c46c is ServeMouseExit
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* $C46C BD B8 06 LDA $6B8,X
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* $C469 18 CLC ; use CLC/BCC to force relative jump
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* $C46A 90 2D BCC ServeMouseWorker
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* ; ServeMouseExit ORG $c46c
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* $C46C BD B8 06 LDA $6B8,X ; check what interrupts we say we serviced
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* $C46F 29 0E AND #$0
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* $C471 D0 01 BNE $C474
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* $C473 38 SEC
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* $C471 D0 01 BNE $C474 ; if we serviced any, leave carry clear
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* $C473 38 SEC ; but set carry if we serviced none
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* $C474 68 PLA
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* $C475 60 RTS
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* ; $c476 is ReadMouse
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* $C476 8D CB C0 STA $C0CB
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* ; ReadMouse ORG $c476
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* $C476 8D CB C0 STA $C0CB ; soft switch 0x0B
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* $C479 18 CLC
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* $C47A 60 RTS
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* ; $c47b is ClearMouse
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* $C47B 8D CA C0 STA $C0CA
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* ; ClearMouse ORG $c47b
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* $C47B 8D CA C0 STA $C0CA ; soft switch 0x0A
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* $C47E 18 CLC
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* $C47F 60 RTS
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* ; $c480 is PosMouse
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* $C480 8D C9 C0 STA $C0C9
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* ; PosMouse ORG $c480
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* $C480 8D C9 C0 STA $C0C9 ; soft switch 0x09
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* $C483 18 CLC
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* $C484 60 RTS
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* ; $c485 is ClampMouse
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* ; ClampMouse ORG $c485
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* $C485 C9 02 CMP #$0
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* $C487 B0 04 BCS $C48D
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* $C489 8D CD C0 STA $C0CD
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* $C489 8D CD C0 STA $C0CD ; soft switch 0x0D
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* $C48C 60 RTS
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* ; $c48d is an error exit point
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* $C48D 38 SEC
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* ; ExitWithError ORG $c48d
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* $C48D 38 SEC ; the spec says carry is set on errors
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* $C48E 60 RTS
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* ; $c48f is HomeMouse
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* $C48F 8D C8 C0 STA $C0C8
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* ; HomeMouse ORG $c48f
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* $C48F 8D C8 C0 STA $C0C8 ; soft switch 0x08
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* $C492 18 CLC
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* $C493 60 RTS
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* ; $c494 is InitMouse
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* $C494 8D CC C0 STA $C0CC
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* ; InitMouse ORG $c494
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* $C494 8D CC C0 STA $C0CC ; soft switch 0x0C
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* $C497 18 CLC
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* $C498 60 RTS
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* ; $c499 is ServeMouse
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* $C499 78 SEI
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* $C49A 8D CE C0 STA $C0CE
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* ; ServeMouseWorker ORG $c499
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* $C499 78 SEI ; disable interrupts
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* $C49A 8D CE C0 STA $C0CE ; soft switch 0x0E
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* $C49D A2 04 LDX #$0
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* $C49F 18 CLC
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* $C4A0 90 CA BCC $C46C
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* $C4A0 90 CA BCC ServeMouseExit ; force relative jump
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* ; $C4A2..C4FA is dead space (all $FF)
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* $C4FB D6 FF FF FF 01 ; data (ID bytes)
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*/
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@ -318,11 +321,9 @@ void Mouse::loadExtendedRom(uint8_t *toWhere, uint16_t byteOffset)
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void Mouse::maintainMouse(int64_t cycleCount)
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{
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// static int64_t startTime = cycleCount;
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// Fake a 60Hz VBL in case we need it for our interrupts
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static int64_t nextInterruptTime = cycleCount + 17050;
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if ( (status & ST_MOUSEENABLE) &&
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(status & ST_INTVBL) &&
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(cycleCount >= nextInterruptTime) ) {
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@ -337,12 +338,24 @@ void Mouse::maintainMouse(int64_t cycleCount)
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if ( (status & ST_MOUSEENABLE) &&
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(status & ST_INTMOUSE) &&
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(xpos != lastX || ypos != lastY) ) {
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(xpos != lastXForInt || ypos != lastYForInt) ) {
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g_cpu->irq();
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interruptsTriggered |= ST_INTMOUSE;
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lastX = xpos; lastY = ypos;
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lastXForInt = xpos; lastYForInt = ypos;
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} else if ( (status & ST_MOUSEENABLE) &&
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(status & ST_INTBUTTON) &&
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lastButtonForInt != g_mouse->getButton()) {
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g_cpu->irq();
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interruptsTriggered |= ST_INTBUTTON;
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lastButtonForInt = g_mouse->getButton();
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}
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}
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/* FIXME: still need button */
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}
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bool Mouse::isEnabled()
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{
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return status & ST_MOUSEENABLE;
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}
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@ -28,14 +28,23 @@ class Mouse : public Slot {
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virtual void loadExtendedRom(uint8_t *toWhere, uint16_t byteOffset);
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void maintainMouse(int64_t cycleCount);
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bool isEnabled();
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private:
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uint8_t status;
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uint8_t interruptsTriggered;
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// Previous state vars used when we're asked "did this change since last time"
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uint16_t lastX, lastY;
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bool lastButton;
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bool curButton;
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// second set of previous state vars for use when checking if an interrupt
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// needs to fire based on a change
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uint16_t lastXForInt, lastYForInt;
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bool lastButtonForInt;
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};
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#endif
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@ -3,6 +3,8 @@
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#include "globals.h"
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#include "applevm.h"
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TeensyMouse::TeensyMouse() : PhysicalMouse()
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{
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xpos = ypos = 0;
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@ -30,23 +32,25 @@ void TeensyMouse::mouseButtonEvent(bool state)
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void TeensyMouse::maintainMouse()
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{
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// FIXME: only do this if the mouse card is enabled, so we're not incurring
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// analogRead delays constantly
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uint8_t paddle0 = g_paddles->paddle0();
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uint8_t paddle1 = g_paddles->paddle1();
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int16_t dx=0, dy=0;
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if (paddle0 <= 25) {
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dx = -1;
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} else if (paddle0 >= 245) {
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dx = 1;
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}
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if (paddle1 <= 25) {
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dy = -1;
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} else if (paddle1 >= 245) {
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dy = 1;
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}
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if (dx || dy) {
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gotMouseEvent(button, dx, dy);
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if (((AppleVM *)g_vm)->isMouseEnabled()) {
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// only do this if the mouse card is enabled, so we're not incurring
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// analogRead delays constantly
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uint8_t paddle0 = g_paddles->paddle0();
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uint8_t paddle1 = g_paddles->paddle1();
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int16_t dx=0, dy=0;
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if (paddle0 <= 25) {
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dx = -1;
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} else if (paddle0 >= 245) {
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dx = 1;
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}
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if (paddle1 <= 25) {
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dy = -1;
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} else if (paddle1 >= 245) {
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dy = 1;
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}
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if (dx || dy) {
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gotMouseEvent(button, dx, dy);
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}
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}
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}
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