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https://github.com/holub/mame
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minimal berr support
This commit is contained in:
Patrick Mackinlay
parent
6c77efba69
commit
ccee0ea2b7
@ -32,7 +32,8 @@ DEVICE_ADDRESS_MAP_START(map, 32, interpro_ioga_device)
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AM_RANGE(0x88, 0x8b) AM_READWRITE(timer_prescaler_r, timer_prescaler_w)
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AM_RANGE(0x8c, 0x8f) AM_READWRITE(timer0_r, timer0_w)
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AM_RANGE(0x90, 0x93) AM_READWRITE(timer1_r, timer1_w)
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AM_RANGE(0x94, 0x97) AM_READ(error_address_r)
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AM_RANGE(0x98, 0x9b) AM_READ(error_businfo_r)
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AM_RANGE(0x9c, 0x9f) AM_READWRITE16(arbctl_r, arbctl_w, 0x0000ffff)
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AM_RANGE(0xa8, 0xab) AM_READWRITE(timer3_r, timer3_w)
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@ -269,119 +270,6 @@ void interpro_ioga_device::device_timer(emu_timer &timer, device_timer_id id, in
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}
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}
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/*
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IOGA
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00: ethernet remap 003e0480 // ET_82586_BASE_ADDR or IOGA_ETH_REMAP
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04 : ethernet map page 00fff4b0 // ET_82586_CNTL_REG or IOGA_ETH_MAPPG
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08 : ethernet control 000004b2 // IOGA_ETH_CTL
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0C : plotter real address 00000fff
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10 : plotter virtual address fffffffc
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14 : plotter transfer count 003fffff
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18 : plotter control ec000001
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1C : plotter end - of - scanline counter ffffffff
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20 : SCSI real address 00000000
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24 : SCSI virtual address 007e96b8
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28 : SCSI transfer count
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2C : SCSI control
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30 : floppy real address
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34 : floppy virtual address
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38 : floppy transfer count
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3C : floppy control
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40 : serial address 0 (003ba298)
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44 : serial control 0 (01000000)
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48 : serial address 1 (ffffffff)
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4C : serial control 1 (01200000)
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50 : serial address 2 (ffffffff)
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54 : serial control 2 (01200000)
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-- 16 bit
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5A : SIB control(00ff)
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5C : internal int 3 (timer 2) 00ff irq 0
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5E : internal int 4 (timer 3) 00ff irq 1
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60 : external int 0 (SCSI)0a20 irq 2
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62 : external int 1 (floppy)0621 irq 3
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64 : external int 2 (plotter)1622 irq 4
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66 : external int 3 (SRX / CBUS 0) 0a02 irq 5
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68 : external int 4 (SRX / CBUS 1) 0e24 irq 6
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6A : external int 5 (SRX / CBUS 2) 0e25 irq 7
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6C : external int 6 (VB)0c26 irq 8
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6E : external int 7 0cff irq 9
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70 : external int 8 (CBUS 3) 0cff irq 10
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72 : external int 9 (clock / calendar) 0e29 irq 11
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74 : external int 10 (clock/SGA) 04fe irq 12
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76 : internal int 0 (mouse)0010 irq 13
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78 : internal int 1 (timer 0) 0011 - 60Hz irq 14
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7A : internal int 2 (timer 1) 0212 irq 15
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7C : internal int 5 (serial DMA) 0e13 irq 16
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7E : external int 11 (serial) 0a01 irq 17
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80 : external int 12 (Ethernet)162c irq 18 // IOGA_EXTINT12
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-- 8 bit
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82 : soft int 00
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83 : NMI control 1b
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-- 32 bit
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84 : mouse status 00070000
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88 : timer prescaler 05aa06da
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8C : timer 0 00000022
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90 : timer 1 00010005
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94 : error address 7f100000
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98 : error cycle type 00001911 // short?
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-- 16 bit
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9C: arbiter control 000a // IOGA_ARBCTL
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#define ETHC_BR_ENA (1<<0)
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#define SCSI_BR_ENA (1<<1)
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#define PLT_BR_ENA (1<<2)
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#define FLP_BR_ENA (1<<3)
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#define SER0_BR_ENA (1<<4)
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#define SER1_BR_ENA (1<<5)
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#define SER2_BR_ENA (1<<6)
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#define ETHB_BR_ENA (1<<7)
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#define ETHA_BR_ENA (1<<8)
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9E : I / O base address
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-- 32 bit
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A0 : timer 2 count ccc748ec
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A4 : timer 2 value ffffffff
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A8 : timer 3 bfffffff // timer 3 count
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AC : bus timeout 445a445c
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-- 16 bit
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B0 : soft int 8 00ff
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B2 : soft int 9 00ff
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B4 : soft int 10 00ff
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B6 : soft int 11 00ff
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B8 : soft int 12 00ff
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BA : soft int 13 00ff
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BC : soft int 14 00ff
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BE : soft int 15 00ff
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-- 32 bit
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C0 : ethernet address A 403bc002 // IOGA_ETHADDR_A
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C4 : ethernet address B 403a68a0 // IOGA_ETHADDR_B
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C8 : ethernet address C 4039f088 // IOGA_ETHADDR_C
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(62) = 0x0421 // set floppy interrupts?
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(3C) &= 0xfeff ffff // turn off and on again
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(3C) |= 0x0100 0000
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(9C) |= 0x0008
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(62) = 0x0621
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during rom boot, all interrupt vectors point at 7f10249e
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int 16 = prioritized interrupt 16, level 0, number 0, mouse interface
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17 timer 0
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*/
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/******************************************************************************
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Interrupts
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******************************************************************************/
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@ -147,6 +147,10 @@ public:
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DECLARE_READ32_MEMBER(dma_plotter_eosl_r) { return m_dma_plotter_eosl; }
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DECLARE_WRITE32_MEMBER(dma_plotter_eosl_w) { m_dma_plotter_eosl = data; }
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DECLARE_READ32_MEMBER(error_address_r) { return m_error_address; }
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DECLARE_READ32_MEMBER(error_businfo_r) { return m_error_businfo; }
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void bus_error(uint32_t address, uint32_t cycle_type) { m_error_address = address; m_error_businfo = cycle_type; }
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protected:
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// device-level overrides
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virtual void device_start() override;
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@ -215,6 +219,9 @@ private:
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void dma_w(address_space &space, offs_t offset, uint32_t data, uint32_t mem_mask, int channel);
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uint16_t m_arbctl;
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uint32_t m_error_address;
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uint32_t m_error_businfo;
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};
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// device type definition
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