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q800: add Apple Sound Chip (ASC) audio to machine

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The Quadra 800 has the enhanced ASC (EASC) audio chip which supports both the
legacy IRQ routing through VIA2 and also "A/UX" mode routing direct to the
CPU.

Co-developed-by: Laurent Vivier <laurent@vivier.eu>
Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Message-ID: <20231004083806.757242-10-mark.cave-ayland@ilande.co.uk>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
This commit is contained in:
Mark Cave-Ayland 2023-10-04 09:37:55 +01:00 • committed by Laurent Vivier
parent 5243e5543e
commit 9983f6e12e
4 changed files with 36 additions and 2 deletions
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4
include/hw/m68k/q800-glue.h
View file

@ -35,7 +35,7 @@ struct GLUEState {
M68kCPU *cpu;
uint8_t ipr;
uint8_t auxmode;
qemu_irq irqs[1];
qemu_irq irqs[2];
QEMUTimer *nmi_release;
};
@ -44,7 +44,9 @@ struct GLUEState {
#define GLUE_IRQ_IN_SONIC 2
#define GLUE_IRQ_IN_ESCC 3
#define GLUE_IRQ_IN_NMI 4
#define GLUE_IRQ_IN_ASC 5
#define GLUE_IRQ_NUBUS_9 0
#define GLUE_IRQ_ASC 1
#endif

2
include/hw/m68k/q800.h
View file

@ -38,6 +38,7 @@
#include "hw/display/macfb.h"
#include "hw/misc/djmemc.h"
#include "hw/misc/iosb.h"
#include "hw/audio/asc.h"
/*
* The main Q800 machine
@ -60,6 +61,7 @@ struct Q800MachineState {
MacfbNubusState macfb;
DJMEMCState djmemc;
IOSBState iosb;
ASCState asc;
MemoryRegion ramio;
MemoryRegion macio;
MemoryRegion macio_alias;