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44 lines
1.4 KiB
44 lines
1.4 KiB
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;=======================================================================
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; HDIAG Diagnostic ROM Global Definitions
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;=======================================================================
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;
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; Include this file in modules written to run under HDIAG to
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; have access to the HDIAG global variables and jump table
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; definitions.
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;
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; It is important to use the definitions in this file because
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; the internal structure of HDIAG is very likely to change
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; over time.
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;
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; Global Variable Addresses
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;
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hd_cpu .equ $FF80
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hd_mmgr .equ $FF81
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;
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; HDIAG Function Jump Table Vectors
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;
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hd_jptbl .equ $FF00
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hd_cinit .equ hd_jptbl + 0 ; init console
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hd_cin .equ hd_jptbl + 3 ; read console byte
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hd_cout .equ hd_jptbl + 6 ; write console byte
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hd_cist .equ hd_jptbl + 9 ; console input status
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hd_cost .equ hd_jptbl + 12 ; console output status
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;
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; CPU Identified Constants (value of hd_cpu)
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;
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hd_cpu_none .equ 0 ; unknown cpu
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hd_cpu_z80 .equ 1 ; plain Z80
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hd_cpu_z180 .equ 2 ; original Z180 (HD64180)
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hd_cpu_z180k .equ 3 ; Zilog Z180 Rev. K
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hd_cpu_z180n .equ 4 ; Zilog Z180 Rev. N
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hd_cpu_z280 .equ 5 ; Zilog Z280
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;
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; Memory Manager Identified Constants (value of hd_mmgr)
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;
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hd_mm_none .equ 0 ; unknown memory manager
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hd_mm_sbc .equ 1 ; SBC/MBC/Zeta 1
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hd_mm_z2 .equ 2 ; Zeta 2/RCBUS
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hd_mm_z180 .equ 3 ; Z180 native
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hd_mm_n8 .equ 4 ; Z180 on N8
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hd_mm_z280 .equ 5 ; Z280 native
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