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Added C64 RAM driver, fixed bug in REU driver

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git-svn-id: svn://svn.cc65.org/cc65/trunk@1699 b7a2c559-68d2-44c3-8de9-860c34a00d81
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cuz
2002-12-02 20:45:24 +00:00
parent 45cae51628
commit 386643bbf1
3 changed files with 285 additions and 4 deletions
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6
libsrc/c64/c64-reu.s
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@@ -123,8 +123,8 @@ PAGECOUNT:
; ------------------------------------------------------------------------
; MAP: Map the page in a/x into memory and return a pointer to the page in
; a/x. The contents of the currently mapped page (if any) are assumed to be
; dirty and must be saved into secondary storage if this is necessary.
; a/x. The contents of the currently mapped page (if any) may be discarded
; by the driver.
;
MAP: sta curpage
@@ -212,7 +212,7 @@ transfer:
ldy $01 ; Save the value of the c64 control port...
tya ;
ora #$03 ; Turn on lower 3 bits to bank out ROMs, I/O.
and #$F8 ; Disable ROMs and I/O.
sei ;
sta $01
lda REU_TRIGGER ; Don't change $FF00