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Added em_use

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git-svn-id: svn://svn.cc65.org/cc65/trunk@1719 b7a2c559-68d2-44c3-8de9-860c34a00d81
This commit is contained in:
cuz
2002-12-05 18:57:53 +00:00
parent e4d25caa56
commit f7244c4e19
12 changed files with 100 additions and 13 deletions
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8
libsrc/c128/c128-georam.s
View File

@@ -29,6 +29,7 @@
.word DEINSTALL
.word PAGECOUNT
.word MAP
.word USE
.word COMMIT
.word COPYFROM
.word COPYTO
@@ -79,6 +80,13 @@ PAGECOUNT:
ldx pagecount+1
rts
; ------------------------------------------------------------------------
; USE: Tell the driver that the window is now associated with a given page.
; The GeoRAM cartridge does not copy but actually map the window, so USE is
; identical to MAP.
USE = MAP
; ------------------------------------------------------------------------
; 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) may be discarded

10
libsrc/c128/c128-ram.s
View File

@@ -30,6 +30,7 @@
.word DEINSTALL
.word PAGECOUNT
.word MAP
.word USE
.word COMMIT
.word COPYFROM
.word COPYTO
@@ -114,6 +115,15 @@ MAP: sta curpage
ldx #>window ; Return the window address
rts
; ------------------------------------------------------------------------
; USE: Tell the driver that the window is now associated with a given page.
USE: sta curpage
stx curpage+1 ; Remember the page
lda #<window
ldx #>window ; Return the window
rts
; ------------------------------------------------------------------------
; COMMIT: Commit changes in the memory window to extended storage.

10
libsrc/c128/c128-reu.s
View File

@@ -30,6 +30,7 @@
.word DEINSTALL
.word PAGECOUNT
.word MAP
.word USE
.word COMMIT
.word COPYFROM
.word COPYTO
@@ -138,6 +139,15 @@ MAP: sta curpage
ldx #>window ; Return the window address
done: rts
; ------------------------------------------------------------------------
; USE: Tell the driver that the window is now associated with a given page.
USE: sta curpage
stx curpage+1 ; Remember the page
lda #<window
ldx #>window ; Return the window
rts
; ------------------------------------------------------------------------
; COMMIT: Commit changes in the memory window to extended storage.

8
libsrc/c64/c64-georam.s
View File

@@ -29,6 +29,7 @@
.word DEINSTALL
.word PAGECOUNT
.word MAP
.word USE
.word COMMIT
.word COPYFROM
.word COPYTO
@@ -79,6 +80,13 @@ PAGECOUNT:
ldx pagecount+1
rts
; ------------------------------------------------------------------------
; USE: Tell the driver that the window is now associated with a given page.
; The GeoRAM cartridge does not copy but actually map the window, so USE is
; identical to MAP.
USE = MAP
; ------------------------------------------------------------------------
; 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) may be discarded

11
libsrc/c64/c64-ram.s
View File

@@ -29,6 +29,7 @@
.word DEINSTALL
.word PAGECOUNT
.word MAP
.word USE
.word COMMIT
.word COPYFROM
.word COPYTO
@@ -109,6 +110,14 @@ MAP: sta curpage ; Remember the new page
ldx #>window ; Return the window address
rts
; ------------------------------------------------------------------------
; USE: Tell the driver that the window is now associated with a given page.
USE: sta curpage ; Remember the page
lda #<window
ldx #>window ; Return the window
rts
; ------------------------------------------------------------------------
; COMMIT: Commit changes in the memory window to extended storage.
@@ -249,7 +258,7 @@ common: ldy #EM_COPY_COUNT+1
; Done
@L4: rts
@L4: rts
; ------------------------------------------------------------------------
; COPYTO: Copy from linear into extended memory. A pointer to a structure

10
libsrc/c64/c64-reu.s
View File

@@ -29,6 +29,7 @@
.word DEINSTALL
.word PAGECOUNT
.word MAP
.word USE
.word COMMIT
.word COPYFROM
.word COPYTO
@@ -137,6 +138,15 @@ MAP: sta curpage
ldx #>window ; Return the window address
done: rts
; ------------------------------------------------------------------------
; USE: Tell the driver that the window is now associated with a given page.
USE: sta curpage
stx curpage+1 ; Remember the page
lda #<window
ldx #>window ; Return the window
rts
; ------------------------------------------------------------------------
; COMMIT: Commit changes in the memory window to extended storage.

1
libsrc/em/Makefile
View File

@@ -20,6 +20,7 @@ S_OBJS = em-kernel.o \
em_map.o \
em_pagecount.o \
em_unload.o \
em_use.o
all: $(C_OBJS) $(S_OBJS)

15
libsrc/em/em-kernel.s
View File

@@ -23,13 +23,14 @@ _em_drv: .res 2 ; Pointer to driver
; Jump table for the driver functions.
.data
emd_vectors:
emd_install: jmp $0000
emd_deinstall: jmp $0000
emd_pagecount: jmp $0000
emd_map: jmp $0000
emd_commit: jmp $0000
emd_copyfrom: jmp $0000
emd_copyto: jmp $0000
emd_install: jmp return0
emd_deinstall: jmp return0
emd_pagecount: jmp return0
emd_map: jmp return0
emd_use: jmp return0
emd_commit: jmp return0
emd_copyfrom: jmp return0
emd_copyto: jmp return0
; Driver header signature
.rodata

17
libsrc/em/em_use.s Normal file
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@@ -0,0 +1,17 @@
;
; Ullrich von Bassewitz, 2002-11-29
;
; void* __fastcall__ em_use (unsigned page);
; /* Tell the driver that the memory window is associated with a given page.
; * This call is very similar to em_map. The difference is that the driver
; * does not necessarily transfer the current contents of the extended
; * memory into the returned window. If you're going to just write to the
; * window and the current contents of the window are invalid or no longer
; * use, this call may perform better than em_map.
; */
.include "em-kernel.inc"
_em_use = emd_use ; Use driver entry