chris/open-roms
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added new segment for MEGA65, $C000-$CFFF

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FeralChild64 committed 2020-11-29 22:28:06 +01:00
1 parent bc6f154b78
commit 2a77b90b40
4 files changed
+33 -3
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Makefile
+10 -2
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@@ -203,6 +203,7 @@ SEG_LIST_M65 = $(DIR_M65)/basic.seg_0 \
$(DIR_M65)/basic.seg_1 \
$(DIR_M65)/dos.seg_1 \
$(DIR_M65)/kernal.seg_0 \
$(DIR_M65)/kernal.seg_C \
$(DIR_M65)/kernal.seg_1
SEG_LIST_X16 = $(DIR_X16)/basic.seg_0 \
@@ -356,6 +357,8 @@ $(DIR_M65)/basic.seg_1 $(DIR_M65)/BASIC_1_combined.vs $(DIR_M65)/BASIC_1_combi
$(TOOL_ASSEMBLER) $(TOOL_BUILD_SEGMENT) $(DEP_BASIC) $(CFG_M65) $(GEN_STR_M65) $(DIR_M65)/KERNAL_0_combined.sym $(DIR_M65)/BASIC_0_combined.sym
$(DIR_M65)/dos.seg_1 $(DIR_M65)/DOS_1_combined.vs $(DIR_M65)/DOS_1_combined.sym: \
$(TOOL_ASSEMBLER) $(TOOL_BUILD_SEGMENT) $(DEP_DOS_M65) $(CFG_M65)
$(DIR_M65)/kernal.seg_C $(DIR_M65)/KERNAL_C_combined.vs $(DIR_M65)/KERNAL_C_combined.sym: \
$(TOOL_ASSEMBLER) $(TOOL_BUILD_SEGMENT) $(DEP_KERNAL) $(CFG_M65) $(GEN_STR_M65) $(DIR_M65)/KERNAL_0_combined.sym
$(DIR_M65)/kernal.seg_1 $(DIR_M65)/KERNAL_1_combined.vs $(DIR_M65)/KERNAL_1_combined.sym: \
$(TOOL_ASSEMBLER) $(TOOL_BUILD_SEGMENT) $(DEP_KERNAL) $(CFG_M65) $(GEN_STR_M65) $(DIR_M65)/KERNAL_0_combined.sym
@@ -513,6 +516,11 @@ $(DIR_M65)/dos.seg_1 $(DIR_M65)/DOS_1_combined.vs $(DIR_M65)/DOS_1_combined.sym:
@rm -f $@* $(DIR_M65)/dos.seg_1 $(DIR_M65)/DOS_1*
@$(TOOL_BUILD_SEGMENT) -a ../../$(TOOL_ASSEMBLER) -r M65 -s DOS_1 -i DOS_1-mega65 -o dos.seg_1 -d $(DIR_M65) -l 4000 -h 7fff $(CFG_M65) $(SRCDIR_DOS_M65)
$(DIR_M65)/kernal.seg_C $(DIR_M65)/KERNAL_C_combined.vs $(DIR_M65)/KERNAL_C_combined.sym:
@mkdir -p $(DIR_M65)
@rm -f $@* $(DIR_M65)/kernal.seg_C $(DIR_M65)/KERNAL_C*
@$(TOOL_BUILD_SEGMENT) -a ../../$(TOOL_ASSEMBLER) -r M65 -s KERNAL_C -i KERNAL_C-mega65 -o kernal.seg_C -d $(DIR_M65) -l c000 -h cfff $(CFG_M65) $(GEN_STR_M65) $(SRCDIR_KERNAL) $(GEN_KERNAL)
$(DIR_M65)/kernal.seg_1 $(DIR_M65)/KERNAL_1_combined.vs $(DIR_M65)/KERNAL_1_combined.sym:
@mkdir -p $(DIR_M65)
@rm -f $@* $(DIR_M65)/kernal.seg_1 $(DIR_M65)/KERNAL_1*
@@ -710,7 +718,7 @@ $(TARGET_M65_x_ORF) $(TARGET_M65_x_PXL): $(SEG_LIST_M65) build/padding_64_KB bui
@cat $(DIR_M65)/basic.seg_1 >> $(TARGET_M65_x_ORF)
@cat build/chargen_openroms.patched >> $(TARGET_M65_x_ORF)
@cat $(DIR_M65)/basic.seg_0 >> $(TARGET_M65_x_ORF)
@cat build/padding_4_KB >> $(TARGET_M65_x_ORF)
@cat $(DIR_M65)/kernal.seg_C >> $(TARGET_M65_x_ORF)
@cat $(TARGET_CHR_ORF) >> $(TARGET_M65_x_ORF)
@cat $(DIR_M65)/kernal.seg_0 >> $(TARGET_M65_x_ORF)
@cat build/padding_64_KB >> $(TARGET_M65_x_ORF)
@@ -725,7 +733,7 @@ $(TARGET_M65_x_ORF) $(TARGET_M65_x_PXL): $(SEG_LIST_M65) build/padding_64_KB bui
@cat $(DIR_M65)/basic.seg_1 >> $(TARGET_M65_x_PXL)
@cat build/chargen_pxlfont.patched >> $(TARGET_M65_x_PXL)
@cat $(DIR_M65)/basic.seg_0 >> $(TARGET_M65_x_PXL)
@cat build/padding_4_KB >> $(TARGET_M65_x_PXL)
@cat $(DIR_M65)/kernal.seg_C >> $(TARGET_M65_x_PXL)
@cat $(TARGET_CHR_PXL) >> $(TARGET_M65_x_PXL)
@cat $(DIR_M65)/kernal.seg_0 >> $(TARGET_M65_x_PXL)
@cat build/padding_64_KB >> $(TARGET_M65_x_PXL)
doc/Development.md
+1 -1
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@@ -95,7 +95,7 @@ Currently there are 4 ROM layouts defined:
- `STD` - with 2 code segments: `BASIC` (`$A000-$E4D2`, where `$C000-$DFFF` is a skip-gap for RAM and I/O area) and `KERNAL` (`$E4D3 - $FFFF`)
- `CRT` - where `BASIC` becames `BASIC_0` and `KERNAL` becames `KERNAL_0`, with additional `BASIC`/`KERNAL` segments are placed on the required cartridge image
- `M65` - where `BASIC` becames `BASIC_0` and `KERNAL` becames `KERNAL_0`, additional segments might be added to the build system in the future; at the moment of writing this document additional 12KB of ROM is defined as `BASIC_1` segment and additional 8KB of ROM is defined as `KERNAL_1` segment
- `M65` - where `BASIC` becames `BASIC_0` and `KERNAL` becames `KERNAL_0`, additional segments might be added to the build system in the future; at the moment of writing this document additional 12KB of ROM is defined as `BASIC_1` segment, additional 4KB of ROM is defined as `KERNAL_C` segment, and additional 8KB of ROM is defined as `KERNAL_1` segment
- `X16` - memory layout for the Commander X16 machine
Expect at least one more, `U64`, if the planned additional ROM banks support for Ultimate 64 gets implemented. To check for current ROM layout or code segment use KickAssembler preprocessor defines, like `ROM_LAYOUT_STD`, `SEGMENT_M65_BASIC_0`, `SEGMENT_X16_KERNAL_1`.
src/kernal/board_m65/C000.interop
+1
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@@ -0,0 +1 @@
This particular address is not for interoperability - we had to choose some fixed location for the extended ROM jumptable, beginning of the mapped memory block is just sane.
src/kernal/board_m65/C000.mega65_vectable_kernal_C.s
+21
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@@ -0,0 +1,21 @@
;; #LAYOUT# M65 KERNAL_0 #TAKE-FLOAT
;; #LAYOUT# M65 KERNAL_C #TAKE
;; #LAYOUT# * * #IGNORE
;
; Definitions for communication with MEGA65 segment KERNAL_C from KERNAL_0
;
!ifdef SEGMENT_KERNAL_0 {
; Label definitions
!addr VKC__m65_scnkey = $C000 + 2 * 0
} else {
; Vector table (Open ROMs private!)
!word $0000
}