support for LOAD command without parameters, some cleanup

This commit is contained in:
FeralChild64 committed 2020-06-01 15:26:05 +02:00
1 parent 1f5f43b211
commit 5d45c166e7
5 files changed
+37 -84

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+1
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@@ -19,6 +19,7 @@
* Jochen Adler - for the JiffyDOS protocol reverse engineering
* H2Obsession - for the JiffyDOS protocol description on [his page](https://sites.google.com/site/h2obsession/CBM/C128/JiffySoft128)
* SD2IEC team - the project [source code](https://github.com/rkrajnc/sd2iec) helped a lot when adding IEC and JiffyDOS support
* Luigi Di Fraia - for his tape formats [description](https://www.luigidifraia.com/c64/docs/tapeloaders.html)
* slark - for his screen codes / PETSCII description at [slark.me](https://slark.me)
* silverdr - for the floating point routines [description](https://codebase64.org/doku.php?id=base:kernal_floating_point_mathematics)
* the [C64 Wiki](https://www.c64-wiki.com) contributors
+10 -7
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@@ -140,11 +140,14 @@ HYBRID_WARNING = "*** WARNING *** Distributing kernal_hybrid.rom violates both o
GIT_COMMIT:= $(shell git log -1 --pretty='%h' | tr '[:lower:]' '[:upper:]')
# Rules - main
# Rules - main XXX fast build does not always succeed, not yet clear, why
.PHONY: all clean updatebin
.PHONY: all fast clean updatebin
all:
$(MAKE) $(TARGET_LIST) $(EXT_TARGET_LIST)
fast:
$(MAKE) -j64 --output-sync=target $(TARGET_LIST) $(EXT_TARGET_LIST)
clean:
@@ -223,7 +226,7 @@ $(DIR_M65)/kernal.seg_1 $(DIR_M65)/KERNAL_1_combined.vs $(DIR_M65)/KERNAL_1_comb
$(TOOL_ASSEMBLER) $(TOOL_BUILD_SEGMENT) $(DEP_KERNAL) $(CFG_M65) $(DIR_M65)/KERNAL_0_combined.sym
$(DIR_X16)/basic.seg_1 $(DIR_X16)/BASIC_1_combined.vs $(DIR_X16)/BASIC_1_combined.sym: \
$(TOOL_ASSEMBLER) $(TOOL_BUILD_SEGMENT) $(DEP_BASIC) $(CFG_X16) $(DIR_M65)/KERNAL_0_combined.sym $(DIR_X16)/BASIC_0_combined.sym
$(TOOL_ASSEMBLER) $(TOOL_BUILD_SEGMENT) $(DEP_BASIC) $(CFG_X16) $(DIR_X16)/KERNAL_0_combined.sym $(DIR_X16)/BASIC_0_combined.sym
$(DIR_X16)/kernal.seg_1 $(DIR_X16)/KERNAL_1_combined.vs $(DIR_X16)/KERNAL_1_combined.sym: \
$(TOOL_ASSEMBLER) $(TOOL_BUILD_SEGMENT) $(DEP_KERNAL) $(CFG_X16) $(DIR_X16)/KERNAL_0_combined.sym
@@ -298,22 +301,22 @@ $(DIR_M65)/kernal.seg_1 $(DIR_M65)/KERNAL_1_combined.vs $(DIR_M65)/KERNAL_1_comb
$(DIR_X16)/OUTB_0.BIN $(DIR_X16)/BASIC_0_combined.vs $(DIR_X16)/BASIC_0_combined.sym:
@mkdir -p $(DIR_X16)
@rm -f $@* $(DIR_X16)/BASIC_0*
@$(TOOL_BUILD_SEGMENT) -a ../../$(TOOL_ASSEMBLER) -r X16 -s BASIC_0 -i BASIC_0-mega65 -o OUTB_0.BIN -d $(DIR_X16) -l c000 -h e4d2 $(CFG_X16) $(SRCDIR_BASIC) $(GEN_BASIC)
@$(TOOL_BUILD_SEGMENT) -a ../../$(TOOL_ASSEMBLER) -r X16 -s BASIC_0 -i BASIC_0-x16 -o OUTB_0.BIN -d $(DIR_X16) -l c000 -h e4d2 $(CFG_X16) $(SRCDIR_BASIC) $(GEN_BASIC)
$(DIR_X16)/OUTK_0.BIN $(DIR_X16)/KERNAL_0_combined.vs $(DIR_X16)/KERNAL_0_combined.sym:
@mkdir -p $(DIR_X16)
@rm -f $@* $(DIR_X16)/KERNAL_0*
@$(TOOL_BUILD_SEGMENT) -a ../../$(TOOL_ASSEMBLER) -r X16 -s KERNAL_0 -i KERNAL_0-mega65 -o OUTK_0.BIN -d $(DIR_X16) -l e4d3 -h ffff $(CFG_X16) $(SRCDIR_KERNAL) $(GEN_KERNAL)
@$(TOOL_BUILD_SEGMENT) -a ../../$(TOOL_ASSEMBLER) -r X16 -s KERNAL_0 -i KERNAL_0-x16 -o OUTK_0.BIN -d $(DIR_X16) -l e4d3 -h ffff $(CFG_X16) $(SRCDIR_KERNAL) $(GEN_KERNAL)
$(DIR_X16)/basic.seg_1 $(DIR_X16)/BASIC_1_combined.vs $(DIR_X16)/BASIC_1_combined.sym:
@mkdir -p $(DIR_X16)
@rm -f $@* $(DIR_X16)/basic.seg_1 $(DIR_X16)/BASIC_1*
@$(TOOL_BUILD_SEGMENT) -a ../../$(TOOL_ASSEMBLER) -r X16 -s BASIC_1 -i BASIC_1-mega65 -o basic.seg_1 -d $(DIR_X16) -l a000 -h bfff $(CFG_X16) $(SRCDIR_BASIC) $(GEN_BASIC)
@$(TOOL_BUILD_SEGMENT) -a ../../$(TOOL_ASSEMBLER) -r X16 -s BASIC_1 -i BASIC_1-x16 -o basic.seg_1 -d $(DIR_X16) -l a000 -h bfff $(CFG_X16) $(SRCDIR_BASIC) $(GEN_BASIC)
$(DIR_X16)/kernal.seg_1 $(DIR_X16)/KERNAL_1_combined.vs $(DIR_X16)/KERNAL_1_combined.sym:
@mkdir -p $(DIR_X16)
@rm -f $@* $(DIR_X16)/kernal.seg_1 $(DIR_X16)/KERNAL_1*
@$(TOOL_BUILD_SEGMENT) -a ../../$(TOOL_ASSEMBLER) -r X16 -s KERNAL_1 -i KERNAL_1-mega65 -o kernal.seg_1 -d $(DIR_X16) -l a000 -h bfff $(CFG_X16) $(SRCDIR_KERNAL) $(GEN_KERNAL)
@$(TOOL_BUILD_SEGMENT) -a ../../$(TOOL_ASSEMBLER) -r X16 -s KERNAL_1 -i KERNAL_1-x16 -o kernal.seg_1 -d $(DIR_X16) -l a000 -h bfff $(CFG_X16) $(SRCDIR_KERNAL) $(GEN_KERNAL)
# Rules - BASIC and KERNAL
+1 -1
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@@ -98,7 +98,7 @@ The following ROM features are currently missing:
| Driver | Status | Remarks |
| :----------------: | :------: | :------------------------------------------------: |
| standard | DONE | |
| JiffyDOS | DONE | |
| JiffyDOS | PARTIAL | LOAD needs improvement for better performance |
| DolphinDOS | DONE | |
| CIA burst mod | NOT DONE | |
| Mega65 burst | NOT DONE | |
+24 -2
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@@ -20,11 +20,33 @@ cmd_load:
lda #$00
sta FNLEN
// Without tape support, LOAD must have a filename
// (This also skips any leading spaces)
// Check for the file name
jsr basic_end_of_statement_check
bcc !+
#if CONFIG_TAPE_NORMAL || CONFIG_TAPE_TURBO
// No file name given, just load the first file from tape
ldx #$00
stx SA // secondary address
#if CONFIG_TAPE_NORMAL
inx // 1 - for normal tape format
#else
ldx #$07 // 7 - for turbo tape format
#endif
stx FA // device number
bne cmd_load_got_secondaryaddress // branch always
#else
// Without tape support, LOAD must have a filename
// (This also skips any leading spaces)
jmp do_MISSING_FILENAME_error
#endif
!:
jsr basic_fetch_and_consume_character
cmp #$22
+1 -74
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@@ -19,80 +19,7 @@
jiffydos_load:
/* XXX NEW version, not yet finished
//
// JiffyDOS protocol support for IEC - optimized load loop
//
// Based on description from https://github.com/mist64/cbmbus_doc
//
// First we need to switch the device to optimized LOAD protocol,
// by making it talk on channel 1 instead of 0
jsr UNTLK
lda FA
jsr TALK
// XXX bcs load_iec_err
lda #$61 // ask to talk on channel 1
sta TBTCNT
jsr iec_tx_command
// XXX bcs load_iec_error
// XXX if not on JiffyDOS protoccol, report error
// Timing is critical, do not allow interrupts
sei
#if CONFIG_IEC_JIFFYDOS_BLANK
// Preserve register with screen status (blank/visible)
lda VIC_SCROLY
sta TBTCNT
// Blank screen to make sure no sprite/badline will interrupt
jsr screen_off
#else
// Store previous sprite status in temporary variable
jsr jiffydos_prepare
sta TBTCNT
#endif
// FALLTROUGH
jiffydos_load_mode_escape:
// We are now in escape mode - release DATA so that we can read it
jsr iec_release_clk_data // XXX maybe release just data?
// Wait till device tells us whether this is EOI/error
jsr iec_wait_for_clk_release
// Check DATA line - if pulled, there is more data
bit CIA2_PRA
bpl jiffydos_load_mode_receive
// XXX check for error
jiffydos_load_mode_receive:
// Preserve 3 lowest bits of CIA2_PRA XXX deduplicate this
lda CIA2_PRA
and #%00000111
sta C3PO
// XXX read data
*/
// XXX implement JiffyDOS optimized LOAD protocol, this one is ineffective
// Timing is critical, do not allow interrupts