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display.map
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display.map
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.page
; "DISPLAY.MAP"
; TEXT HIRES MULTI HIRES MULTI
; MODE BIT-MAPPED BIT-MAPPED SPLIT SPLIT
; | |
; $DC00 |-------| ------------ ------------ ------------ ------------ ------------
; | | | Text color Bit-mapped Text color Text color/ (*1)
; | | | info. color info. info. BM color info.
; $D800 |-------| ------------ ------------ ------------ ------------ ------------
; | |
; | |
; ~ ~
; | |
; | |
; $4000 |-------| ------------ ------------ ------------ ------------ ------------
; | | |
; | | | Not Bit Bit Bit Bit
; | ~ ~ map map map map
; | | | used. screen screen screen screen
; | | |
; $2000 |-------| ------------ ------------ ------------ ------------ ------------
; | | | Not Bit-mapped Bit-mapped Bit-mapped Bit-mapped
; | | | used. color info. color info. color info. color info.
; $1C00 |-------| ------------ ------------ ------------ ------------ ------------
; | |
; | |
; | |
; $0800 |-------| ------------ ------------ ------------ ------------ ------------
; | | | Text Not Not Text Text
; | | | screen used. (*2) used. (*2) screen screen
; $0400 |-------| ------------ ------------ ------------ ------------ ------------
; | |
; | |
;
; (*1) There are actually 2 banks of RAM that can be mapped into this slot in the map. By
; selecting one bank during the BM portion of the screen (top), and the other during
; the TEXT portion of the screen (bottom), each mode will have unique RAM for it's
; own purposes.
;
; (*2) Although the information on the TEXT screen is not actually being displayed at this
; time, it is still being acessed and updated during any operation normally routed to
; the screen (such as default print statements, error messages, etc.) "Not used" is
; NOT meant to imply that during this mode, all print operations are going into the
; bit-bucket.