2018-12-20 17:09:29 +00:00
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; ReC98
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; Inlined EGC code
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; Requires the EGC to have been activated before, via egc_on() or equivalent
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; inlined writes to the EGC ports.
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EGC_SETUP_COPY macro
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outw2 EGC_ACTIVEPLANEREG, 0FFF0h
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egc_selectpat
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egc_setrop EGC_COMPAREREAD or EGC_WS_PATREG or EGC_RL_MEMREAD
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outw2 EGC_MASKREG, 0FFFFh
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outw2 EGC_ADDRRESSREG, 0
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outw2 EGC_BITLENGTHREG, 0Fh
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endm
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2018-12-27 20:42:27 +00:00
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; Varieties of egc_on() + EGC_SETUP_COPY.
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EGC_START_COPY_DEF macro instance, distance
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; void egc_start_copy();
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public egc_start_copy_&instance
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egc_start_copy_&instance proc distance
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push bp
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mov bp, sp
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call egc_on
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EGC_SETUP_COPY
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pop bp
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ret
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egc_start_copy_&instance endp
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endm
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EGC_START_COPY_INLINED macro
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GRCG_OFF_VIA_MOV al
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mov al, 7
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out 6Ah, al
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mov al, 5
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out 6Ah, al
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GRCG_SETMODE_VIA_MOV al, GC_TDW
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mov al, 6
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out 6Ah, al
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EGC_SETUP_COPY
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endm
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