mirror of
https://github.com/mi57730/a2d.git
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DeskTop: split invoker routine out
This commit is contained in:
Joshua Bell
parent
a91942e7ee
commit
13e997568b
@ -3,7 +3,7 @@ CC65 = ~/dev/cc65/bin
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CAFLAGS = --target apple2enh --list-bytes 0
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CCFLAGS = --config asm.cfg
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TARGETS = loader.built a2d.built desktop.built
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TARGETS = loader.built a2d.built desktop.built invoker.built
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.PHONY: clean all
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all: $(TARGETS)
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@ -21,6 +21,7 @@ clean:
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$(CC65)/ld65 $(CCFLAGS) -o $@ $<
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check:
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diff loader.built orig/DESKTOP2_s0_loader
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diff a2d.built orig/DESKTOP2_s1_a2d
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diff desktop.built orig/DESKTOP2_s2_desktop
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diff loader.built orig/DESKTOP2_loader
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diff a2d.built orig/DESKTOP2_a2d
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diff desktop.built orig/DESKTOP2_desktop
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diff invoker.built orig/DESKTOP2_invoker
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@ -20,9 +20,9 @@ The file is broken down into multiple segments:
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* segment 2: aux2 - address $D000-$ECFF, length $1D00, file offset $008580 (More of DeskTop)
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* segment 3: aux3 - address $FB00-$FFFF, length $0500, file offset $00A280 (More of DeskTop)
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* segment 4: main - address $4000-$BEFF, length $7F00, file offset $00A780 (More of DeskTop)
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* segment 5: main - address $0800-$0FFF, length $0800, file offset $012680 (???)
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* segment 5: main - address $0800-$0FFF, length $0800, file offset $012680 (Initializer)
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* segment 6: main - address $0290-$03EF, length $0160, file offset $012E80 (Invoker)
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* segment N: _TBD_ - 38k so must be further subdivided. Disk Copy???
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* segment N: _TBD_ - 38k so must be further subdivided. Disk Copy, and ...???
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## Structure
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@ -44,9 +44,17 @@ There's fourth chunk of code; it's unclear where that ends up or how
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it is invoked, but it appears to handle an OpenApple+ClosedApple+P
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key sequence and invoke slot one code - possibly debugging support?
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### Initializer
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`desktop.s`
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Loaded at $800-$FFF, this does one-time initialization of the
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DeskTop. It is later overwritten when any desk accessories are
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run.
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### Invoker
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`s6.s`
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`desktop.s`
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Loaded at $290-$03EF, this small routine is used to invoke a target,
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e.g. a double-clicked file. System files are loaded/run at $2000,
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@ -86,58 +94,69 @@ DeskTop application code is in the lower 48k of both Aux and Main:
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```
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Main Aux ROM
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$FFFF +------------+ +------------+ +------------+
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| ProDOS | | DeskTop | | Monitor |
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$F800 | | | Resources/ | +------------+
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| | | Buffers | | Applesoft |
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$D000 +------------+ +------------+ +------------+ +------------+
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| I/O |
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| |
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$C000 +------------+ +------------+ +------------+
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| ProDOS | | DeskTop |
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$BF00 +------------+ | App Code |
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| DeskTop | | |
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| App Code | | |
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$8E00 | | +------------+
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| | | A2D GUI |
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| | | Library |
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$4000 +------------+ +------------+
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| Graphics | | Graphics |
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$2000 +------------+ +------------+
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| Init & | | Desk Acc |
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| Desk Acc | | |
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$0800 +------------+ +------------+
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| Text | | Text |
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$0400 +------------+ +------------+
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| Invoker | | |
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$0300 +------------+ +------------+
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| Input Buf | | Input Buf |
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$0200 +------------+ +------------+
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| Stack | | Stack |
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$0100 +------------+ +------------+
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| Zero Page | | Zero Page |
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$0000 +------------+ +------------+
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Main Aux ROM
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$FFFF +-------------+ +-------------+ +-------------+
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| ProDOS | | DeskTop | | Monitor |
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$F800 | | | Resources/ | +-------------+
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| | | Buffers | | Applesoft |
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$D000 +-------------+ +-------------+ +-------------+ +-------------+
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| I/O |
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| |
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$C000 +-------------+ +-------------+ +-------------+
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| ProDOS GP | | DeskTop |
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$BF00 +-------------+ | App Code |
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| DeskTop | | |
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| App Code | | |
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$8E00 | | +-------------+
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| | | A2D GUI |
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| | | Library |
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$4000 +-------------+ +-------------+
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| Graphics | | Graphics |
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$2000 +-------------+ +-------------+
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| Initializer | | Desk Acc |
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| & Desk Acc | | |
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$0800 +-------------+ +-------------+
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| Text | | Text |
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$0400 +-------------+ +-------------+
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| Invoker | | |
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$0300 +-------------+ +-------------+
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| Input Buf | | Input Buf |
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$0200 +-------------+ +-------------+
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| Stack | | Stack |
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$0100 +-------------+ +-------------+
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| Zero Page | | Zero Page |
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$0000 +-------------+ +-------------+
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```
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@ -11,6 +11,9 @@
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;;; DeskTop - the actual application
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;;; ==================================================
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INVOKER := $290 ; Invoke other programs
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INVOKER_FILENAME := $280 ; File to invoke (PREFIX must be set)
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;;; ==================================================
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;;; Segment loaded into AUX $8E00-$BFFF (follows A2D)
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;;; ==================================================
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@ -2840,14 +2843,14 @@ LA938: lda set_state_params::top
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;; 5.25" Floppy Disk
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LA980: .addr LA9AC ; address
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LA980: .addr floppy140_pixels; address
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.word 4 ; stride
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.word 0 ; left
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.word 1 ; top
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.word 26 ; width
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.word 15 ; height
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LA9AC:
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floppy140_pixels:
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.byte px(%1010101),px(%0101010),px(%1010101),px(%0101010)
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.byte px(%1111111),px(%1111111),px(%1111111),px(%1111111)
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.byte px(%1100000),px(%0000011),px(%1000000),px(%0000110)
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@ -2866,13 +2869,14 @@ LA9AC:
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.byte px(%1111111),px(%1111111),px(%1111111),px(%1111111)
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;; RAM Disk
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LA9CC: .addr LA9D8 ; address
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LA9CC: .addr ramdisk_pixels ; address
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.word 6 ; stride
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.word 1 ; left (???)
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.word 0 ; top
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.word 38 ; width
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.word 11 ; height
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LA9D8:
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ramdisk_pixels:
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.byte px(%1111111),px(%1111111),px(%1111111),px(%1111111),px(%1111111),px(%1111101)
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.byte px(%1100000),px(%0000000),px(%0000000),px(%0000000),px(%0000000),px(%0001110)
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.byte px(%1100000),px(%0000000),px(%0000000),px(%0000000),px(%0000000),px(%0001101)
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@ -2887,13 +2891,14 @@ LA9D8:
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.byte px(%1010101),px(%0101010),px(%1010101),px(%1111111),px(%1111111),px(%1111110)
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;; 3.5" Floppy Disk
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LAA20: .addr LAA2C ; address
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LAA20: .addr floppy800_pixels; address
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.word 3 ; stride
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.word 0 ; left
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.word 0 ; top
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.word 20 ; width
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.word 11 ; height
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LAA2C:
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floppy800_pixels:
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.byte px(%1111111),px(%1111111),px(%1111110)
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.byte px(%1100011),px(%0000000),px(%1100111)
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.byte px(%1100011),px(%0000000),px(%1100111)
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@ -2908,13 +2913,14 @@ LAA2C:
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.byte px(%1111111),px(%1111111),px(%1111111)
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;; Hard Disk
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LAA50: .addr LAA5C ; address
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LAA50: .addr profile_pixels ; address
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.word 8 ; stride
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.word 1 ; left
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.word 0 ; top
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.word 51 ; width
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.word 9 ; height
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LAA5C:
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profile_pixels:
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.byte px(%0111111),px(%1111111),px(%1111111),px(%1111111),px(%1111111),px(%1111111),px(%1111111),px(%1110101)
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.byte px(%1100000),px(%0000000),px(%0000000),px(%0000000),px(%0000000),px(%0000000),px(%0000000),px(%0011010)
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.byte px(%1100000),px(%0000000),px(%0000000),px(%0000000),px(%0000000),px(%0000000),px(%0000000),px(%0011101)
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@ -6078,7 +6084,7 @@ L4773: lda $D355,x
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bpl L4773
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ldx $D345
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L477F: lda $D345,x
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sta $0280,x
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sta INVOKER_FILENAME,x
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dex
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bpl L477F
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lda #$80
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@ -6088,9 +6094,9 @@ L477F: lda $D345,x
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ldx #$02
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jsr L4842
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jsr L48BE
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lda #$90
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lda #<INVOKER
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sta L5B19
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lda #$02
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lda #>INVOKER
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sta L5B19+1
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jmp L5AEE
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@ -20194,219 +20200,3 @@ L0F34: A2D_RELAY_CALL $29, $0000
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;; Pad out to $800
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.res $800 - (* - start), 0
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.endproc ; desktop_800
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;;; ==================================================
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;;; Segment loaded into MAIN $290-$3EF
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;;; ==================================================
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;;; Used to invoke other programs (system, binary, BASIC)
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.proc desktop_290
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.org $290
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PREFIX := $0220
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start:
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jmp begin
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;;; ==================================================
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default_start_address := $2000
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.proc set_prefix_params
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params: .byte 1
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path: .addr PREFIX
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.endproc
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prefix_length:
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.byte 0
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.proc open_params
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params: .byte 3
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path: .addr $280
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buffer: .addr $800
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ref_num:.byte 1
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.endproc
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.proc read_params
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params: .byte 4
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ref_num:.byte 0
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buffer: .addr default_start_address
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request:.word $9F00
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trans: .word 0
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.endproc
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.proc close_params
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params: .byte 1
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ref_nun:.byte 0
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.endproc
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.proc get_info_params
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params: .byte $A
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path: .addr $0280
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access: .byte 0
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type: .byte 0
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auxtype:.word 0
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storage:.byte 0
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blocks: .word 0
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mod_date: .word 0
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mod_time: .word 0
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create_date: .word 0
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create_time: .word 0
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.endproc
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.res 3
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bs_path:
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PASCAL_STRING "BASIC.SYSTEM"
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.proc quit_params
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params: .byte 4
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.byte $EE ; nonstandard ???
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.word $0280 ; nonstandard ???
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.byte 0
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.word 0
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.endproc
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;;; ==================================================
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set_prefix:
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MLI_CALL SET_PREFIX, set_prefix_params
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beq :+
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pla
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pla
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jmp exit
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: rts
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;;; ==================================================
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open: MLI_CALL OPEN, open_params
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rts
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;;; ==================================================
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begin: lda ROMIN2
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lda #<default_start_address
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sta jmp_addr
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lda #>default_start_address
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sta jmp_addr+1
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;; clear system memory bitmap
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ldx #BITMAP_SIZE-2
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lda #0
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: sta BITMAP,x
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dex
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bne :-
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jsr set_prefix
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lda PREFIX
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sta prefix_length
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MLI_CALL GET_FILE_INFO, get_info_params
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beq :+
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jmp exit
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: lda get_info_params::type
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cmp #FT_S16
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bne L031D
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jsr update_bitmap
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jmp quit_call
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L031D: cmp #FT_BINARY
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bne L0345
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lda get_info_params::auxtype
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sta jmp_addr
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sta read_params::buffer
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lda get_info_params::auxtype+1
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sta jmp_addr+1
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sta read_params::buffer+1
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cmp #$0C
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bcs L033E
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lda #$BB
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sta open_params::buffer+1
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bne load_target
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L033E: lda #$08
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sta open_params::buffer+1
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bne load_target
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L0345: cmp #FT_BASIC ; BASIC?
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bne load_target
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;; Invoke BASIC.SYSTEM as path instead.
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lda #<bs_path
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sta open_params::path
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lda #>bs_path
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sta open_params::path+1
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;; Try opening BASIC.SYSTEM with current prefix.
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check_for_bs:
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jsr open
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beq found_bs
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ldy PREFIX ; Pop a path segment to try
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: lda PREFIX,y ; parent directory.
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cmp #'/'
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beq update_prefix
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dey
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cpy #1
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bne :-
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jmp exit
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update_prefix: ; Update prefix and try again.
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dey
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sty PREFIX
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jsr set_prefix
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jmp check_for_bs
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found_bs:
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lda prefix_length
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sta PREFIX
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jmp do_read
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load_target:
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jsr open
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bne exit
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do_read:
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lda open_params::ref_num
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sta read_params::ref_num
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MLI_CALL READ, read_params
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bne exit
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MLI_CALL CLOSE, close_params
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bne exit
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;; If it's BASIC, copy prefix to interpreter buffer.
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lda get_info_params::type
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cmp #FT_BASIC
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bne update_stack
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jsr set_prefix
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ldy $0280
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: lda $0280,y
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sta $2006,y
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dey
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bpl :-
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;; Set return address to the QUIT call below
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update_stack:
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lda #>(quit_call-1)
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pha
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lda #<(quit_call-1)
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pha
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jsr update_bitmap
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jmp_addr := *+1
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jmp default_start_address
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quit_call:
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MLI_CALL QUIT, quit_params
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;; Update system bitmap
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update_bitmap:
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lda #%00000001 ; ProDOS global page
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sta BITMAP+BITMAP_SIZE-1
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lda #%11001111 ; ZP, Stack, Text Page 1
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sta BITMAP
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rts
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exit: rts
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;; Pad to $160 bytes
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.res $160 - (* - start), 0
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.endproc ; desktop_290
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41
desktop/infos/s6.info
Normal file
41
desktop/infos/s6.info
Normal file
@ -0,0 +1,41 @@
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GLOBAL {
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STARTADDR $290;
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PAGELENGTH 0; # No paging
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CPU "6502";
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};
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# Softswitches / I/O ROM
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LABEL { NAME "RAMRDOFF"; ADDR $C002; };
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LABEL { NAME "RAMRDON"; ADDR $C003; };
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LABEL { NAME "RAMWRTOFF"; ADDR $C004; };
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LABEL { NAME "RAMWRTON"; ADDR $C005; };
|
||||
LABEL { NAME "ALTZPOFF"; ADDR $C008; };
|
||||
LABEL { NAME "ALTZPON"; ADDR $C009; };
|
||||
LABEL { NAME "LCBANK1"; ADDR $C08B; };
|
||||
LABEL { NAME "AUXMOVE"; ADDR $C311; };
|
||||
LABEL { NAME "XFER"; ADDR $C314; };
|
||||
|
||||
# A2Desktop
|
||||
LABEL { NAME "A2D"; ADDR $4000; };
|
||||
LABEL { NAME "UNKNOWN_CALL"; ADDR $8E00; };
|
||||
LABEL { NAME "MLI"; ADDR $BF00; };
|
||||
LABEL { NAME "A2D_RELAY"; ADDR $D000; };
|
||||
LABEL { NAME "DESKTOP_RELAY"; ADDR $D040; };
|
||||
|
||||
# Applesoft
|
||||
LABEL { NAME "FSUB"; ADDR $E7A7; };
|
||||
LABEL { NAME "FADD"; ADDR $E7BE; };
|
||||
LABEL { NAME "FMULT"; ADDR $E97F; };
|
||||
LABEL { NAME "FDIV"; ADDR $EA66; };
|
||||
LABEL { NAME "ROUND"; ADDR $EB2B; };
|
||||
LABEL { NAME "FLOAT"; ADDR $EB93; };
|
||||
LABEL { NAME "FIN"; ADDR $EC4A; };
|
||||
LABEL { NAME "FOUT"; ADDR $ED34; };
|
||||
|
||||
# Monitor
|
||||
LABEL { NAME "INIT"; ADDR $FB2F; };
|
||||
LABEL { NAME "BELL1"; ADDR $FBDD; };
|
||||
LABEL { NAME "HOME"; ADDR $FC58; };
|
||||
LABEL { NAME "COUT"; ADDR $FDED; };
|
||||
LABEL { NAME "SETKBD"; ADDR $FE89; };
|
||||
LABEL { NAME "SETVID"; ADDR $FE93; };
|
||||
222
desktop/invoker.s
Normal file
222
desktop/invoker.s
Normal file
@ -0,0 +1,222 @@
|
||||
.setcpu "6502"
|
||||
|
||||
.include "apple2.inc"
|
||||
.include "../inc/apple2.inc"
|
||||
.include "../inc/prodos.inc"
|
||||
|
||||
;;; ==================================================
|
||||
;;; Segment loaded into MAIN $290-$3EF
|
||||
;;; ==================================================
|
||||
|
||||
;;; Used to invoke other programs (system, binary, BASIC)
|
||||
|
||||
.proc invoker
|
||||
.org $290
|
||||
|
||||
PREFIX := $220
|
||||
FILENAME := $280 ; File to invoke, set by caller
|
||||
|
||||
start:
|
||||
jmp begin
|
||||
|
||||
;;; ==================================================
|
||||
|
||||
default_start_address := $2000
|
||||
|
||||
.proc set_prefix_params
|
||||
params: .byte 1
|
||||
path: .addr PREFIX
|
||||
.endproc
|
||||
|
||||
prefix_length:
|
||||
.byte 0
|
||||
|
||||
.proc open_params
|
||||
params: .byte 3
|
||||
path: .addr FILENAME
|
||||
buffer: .addr $800
|
||||
ref_num:.byte 1
|
||||
.endproc
|
||||
|
||||
.proc read_params
|
||||
params: .byte 4
|
||||
ref_num:.byte 0
|
||||
buffer: .addr default_start_address
|
||||
request:.word $9F00
|
||||
trans: .word 0
|
||||
.endproc
|
||||
|
||||
.proc close_params
|
||||
params: .byte 1
|
||||
ref_nun:.byte 0
|
||||
.endproc
|
||||
|
||||
.proc get_info_params
|
||||
params: .byte $A
|
||||
path: .addr FILENAME
|
||||
access: .byte 0
|
||||
type: .byte 0
|
||||
auxtype:.word 0
|
||||
storage:.byte 0
|
||||
blocks: .word 0
|
||||
mod_date: .word 0
|
||||
mod_time: .word 0
|
||||
create_date: .word 0
|
||||
create_time: .word 0
|
||||
.endproc
|
||||
|
||||
.res 3
|
||||
|
||||
bs_path:
|
||||
PASCAL_STRING "BASIC.SYSTEM"
|
||||
|
||||
.proc quit_params
|
||||
params: .byte 4
|
||||
.byte $EE ; nonstandard ???
|
||||
.word FILENAME ; nonstandard ???
|
||||
.byte 0
|
||||
.word 0
|
||||
.endproc
|
||||
|
||||
;;; ==================================================
|
||||
|
||||
set_prefix:
|
||||
MLI_CALL SET_PREFIX, set_prefix_params
|
||||
beq :+
|
||||
pla
|
||||
pla
|
||||
jmp exit
|
||||
: rts
|
||||
|
||||
;;; ==================================================
|
||||
|
||||
open: MLI_CALL OPEN, open_params
|
||||
rts
|
||||
|
||||
;;; ==================================================
|
||||
|
||||
begin: lda ROMIN2
|
||||
|
||||
lda #<default_start_address
|
||||
sta jmp_addr
|
||||
lda #>default_start_address
|
||||
sta jmp_addr+1
|
||||
|
||||
;; clear system memory bitmap
|
||||
ldx #BITMAP_SIZE-2
|
||||
lda #0
|
||||
: sta BITMAP,x
|
||||
dex
|
||||
bne :-
|
||||
|
||||
jsr set_prefix
|
||||
lda PREFIX
|
||||
sta prefix_length
|
||||
MLI_CALL GET_FILE_INFO, get_info_params
|
||||
beq :+
|
||||
jmp exit
|
||||
: lda get_info_params::type
|
||||
cmp #FT_S16
|
||||
bne L031D
|
||||
jsr update_bitmap
|
||||
jmp quit_call
|
||||
|
||||
L031D: cmp #FT_BINARY
|
||||
bne L0345
|
||||
lda get_info_params::auxtype
|
||||
sta jmp_addr
|
||||
sta read_params::buffer
|
||||
lda get_info_params::auxtype+1
|
||||
sta jmp_addr+1
|
||||
sta read_params::buffer+1
|
||||
cmp #$0C
|
||||
bcs L033E
|
||||
lda #$BB
|
||||
sta open_params::buffer+1
|
||||
bne load_target
|
||||
L033E: lda #$08
|
||||
sta open_params::buffer+1
|
||||
bne load_target
|
||||
|
||||
L0345: cmp #FT_BASIC ; BASIC?
|
||||
bne load_target
|
||||
|
||||
;; Invoke BASIC.SYSTEM as path instead.
|
||||
lda #<bs_path
|
||||
sta open_params::path
|
||||
lda #>bs_path
|
||||
sta open_params::path+1
|
||||
|
||||
;; Try opening BASIC.SYSTEM with current prefix.
|
||||
check_for_bs:
|
||||
jsr open
|
||||
beq found_bs
|
||||
ldy PREFIX ; Pop a path segment to try
|
||||
: lda PREFIX,y ; parent directory.
|
||||
cmp #'/'
|
||||
beq update_prefix
|
||||
dey
|
||||
cpy #1
|
||||
bne :-
|
||||
jmp exit
|
||||
|
||||
update_prefix: ; Update prefix and try again.
|
||||
dey
|
||||
sty PREFIX
|
||||
jsr set_prefix
|
||||
jmp check_for_bs
|
||||
|
||||
found_bs:
|
||||
lda prefix_length
|
||||
sta PREFIX
|
||||
jmp do_read
|
||||
|
||||
load_target:
|
||||
jsr open
|
||||
bne exit
|
||||
do_read:
|
||||
lda open_params::ref_num
|
||||
sta read_params::ref_num
|
||||
MLI_CALL READ, read_params
|
||||
bne exit
|
||||
MLI_CALL CLOSE, close_params
|
||||
bne exit
|
||||
|
||||
;; If it's BASIC, copy prefix to interpreter buffer.
|
||||
lda get_info_params::type
|
||||
cmp #FT_BASIC
|
||||
bne update_stack
|
||||
jsr set_prefix
|
||||
ldy FILENAME
|
||||
: lda FILENAME,y
|
||||
sta $2006,y
|
||||
dey
|
||||
bpl :-
|
||||
|
||||
;; Set return address to the QUIT call below
|
||||
update_stack:
|
||||
lda #>(quit_call-1)
|
||||
pha
|
||||
lda #<(quit_call-1)
|
||||
pha
|
||||
jsr update_bitmap
|
||||
|
||||
jmp_addr := *+1
|
||||
jmp default_start_address
|
||||
|
||||
quit_call:
|
||||
MLI_CALL QUIT, quit_params
|
||||
|
||||
;; Update system bitmap
|
||||
update_bitmap:
|
||||
lda #%00000001 ; ProDOS global page
|
||||
sta BITMAP+BITMAP_SIZE-1
|
||||
lda #%11001111 ; ZP, Stack, Text Page 1
|
||||
sta BITMAP
|
||||
rts
|
||||
|
||||
exit: rts
|
||||
|
||||
;; Pad to $160 bytes
|
||||
.res $160 - (* - start), 0
|
||||
.endproc ; invoker
|
||||
@ -5,7 +5,7 @@
|
||||
.include "../inc/auxmem.inc"
|
||||
.include "../inc/prodos.inc"
|
||||
|
||||
L0800 := $0800 ; init location
|
||||
DESKTOP_INIT := $0800 ; init location
|
||||
L7ECA := $7ECA ; ???
|
||||
|
||||
;;; ==================================================
|
||||
@ -15,7 +15,6 @@ L7ECA := $7ECA ; ???
|
||||
.proc install_as_quit
|
||||
.org $2000
|
||||
|
||||
|
||||
src := quit_routine
|
||||
dst := SELECTOR
|
||||
|
||||
@ -247,8 +246,10 @@ L11D0:
|
||||
.endproc ; quit_routine
|
||||
|
||||
;;; ==================================================
|
||||
;;; This chunk is invoked at $2000 after the quit
|
||||
;;; handler has been invoked and updated itself.
|
||||
;;; This chunk is invoked at $2000 after the quit handler has been invoked
|
||||
;;; and updated itself. Using the segment_*_tables below, this loads the
|
||||
;;; DeskTop application into various parts of main, aux, and bank-switched
|
||||
;;; memory, then invokes the DeskTop initialization routine.
|
||||
|
||||
.proc install_segments
|
||||
.org $2000
|
||||
@ -287,6 +288,14 @@ pathname:
|
||||
;;; Consecutive segments are loaded, |size| bytes are loaded at |addr|
|
||||
;;; then relocated to |dest| according to |type|.
|
||||
|
||||
;;; Segments are:
|
||||
;;; $4000 aux - A2D GUI library and DeskTop code
|
||||
;;; $D000 aux/banked - DeskTop code callable from main, and resources
|
||||
;;; $FB00 aux/banked - more DeskTop resources (icons, strings, etc)
|
||||
;;; $4000 main - more DeskTop code
|
||||
;;; $0800 main - DeskTop initialization code; later overwritten by DAs
|
||||
;;; $0290 main - Routine to invoke other programs
|
||||
|
||||
segment_addr_table:
|
||||
.word $3F00,$4000,$4000,$4000,$0800,$0290
|
||||
|
||||
@ -343,7 +352,7 @@ loop: lda segment_num
|
||||
and #$FF
|
||||
beq :+
|
||||
brk ; crash
|
||||
: jmp L0800 ; ??? What is there?
|
||||
: jmp DESKTOP_INIT
|
||||
|
||||
continue:
|
||||
asl a
|
||||
@ -360,7 +369,7 @@ continue:
|
||||
sei
|
||||
MLI_CALL READ, read_params
|
||||
plp
|
||||
and #$FF
|
||||
and #$FF ; ???
|
||||
beq :+
|
||||
brk ; crash
|
||||
: ldx segment_num
|
||||
@ -380,38 +389,45 @@ segment_num: .byte 0
|
||||
|
||||
;; Handle bank-switched memory segment
|
||||
.proc banked_segment
|
||||
src := $6
|
||||
dst := $8
|
||||
|
||||
sta ALTZPON
|
||||
lda LCBANK1
|
||||
lda LCBANK1
|
||||
lda #$80
|
||||
|
||||
lda #$80 ; ???
|
||||
sta $0100
|
||||
sta $0101
|
||||
lda #$00
|
||||
sta $06
|
||||
sta $08
|
||||
|
||||
lda #0
|
||||
sta src
|
||||
sta dst
|
||||
lda segment_num
|
||||
asl a
|
||||
tax
|
||||
lda segment_dest_table+1,x
|
||||
sta $08+1
|
||||
sta dst+1
|
||||
lda read_params::buffer+1
|
||||
sta $06+1
|
||||
sta src+1
|
||||
clc
|
||||
adc segment_size_table+1,x
|
||||
sta max_page
|
||||
lda segment_size_table,x
|
||||
beq :+
|
||||
inc max_page
|
||||
|
||||
: ldy #0
|
||||
loop: lda ($06),y
|
||||
sta ($08),y
|
||||
loop: lda (src),y
|
||||
sta (dst),y
|
||||
iny
|
||||
bne loop
|
||||
inc $06+1
|
||||
inc $08+1
|
||||
lda $06+1
|
||||
inc src+1
|
||||
inc dst+1
|
||||
lda src+1
|
||||
cmp max_page
|
||||
bne loop
|
||||
|
||||
sta ALTZPOFF
|
||||
lda ROMIN2
|
||||
rts
|
||||
@ -422,29 +438,32 @@ max_page:
|
||||
|
||||
;; Handle aux memory segment
|
||||
.proc aux_segment
|
||||
lda #$00
|
||||
sta $06
|
||||
sta $08
|
||||
src := $6
|
||||
dst := $8
|
||||
|
||||
lda #0
|
||||
sta src
|
||||
sta dst
|
||||
lda segment_num
|
||||
asl a
|
||||
tax
|
||||
lda segment_dest_table+1,x
|
||||
sta $08+1
|
||||
sta dst+1
|
||||
lda read_params::buffer+1
|
||||
sta $06+1
|
||||
sta src+1
|
||||
clc
|
||||
adc segment_size_table+1,x
|
||||
sta max_page
|
||||
sta RAMRDOFF
|
||||
sta RAMWRTON
|
||||
ldy #$00
|
||||
loop: lda ($06),y
|
||||
sta ($08),y
|
||||
ldy #0
|
||||
loop: lda (src),y
|
||||
sta (dst),y
|
||||
iny
|
||||
bne loop
|
||||
inc $06+1
|
||||
inc $08+1
|
||||
lda $06+1
|
||||
inc src+1
|
||||
inc dst+1
|
||||
lda src+1
|
||||
cmp max_page
|
||||
bne loop
|
||||
sta RAMWRTOFF
|
||||
|
||||
Binary file not shown.
BIN
desktop/orig/DESKTOP2_invoker
Normal file
BIN
desktop/orig/DESKTOP2_invoker
Normal file
Binary file not shown.
Binary file not shown.
Loading…
Reference in New Issue
Block a user