more work towards disk operations in monitor

src/kernal/board_m65/mega65_proxies_monitor.s

@@ -24,6 +24,17 @@ proxy_M1_end:
 
 	jmp map_MON_1
 
+proxy_M1_JLOAD:
+
+	jsr map_NORMAL
+	jsr JLOAD
+	bra proxy_M1_end
+
+proxy_M1_JSAVE:
+
+	jsr map_NORMAL
+	jsr JSAVE
+	bra proxy_M1_end
 
 ; Memory acccess routines
 

src/mon_m65/imports.s

@@ -10,14 +10,19 @@
 ;; #ALIAS# SCREEN                      = KERNAL_0.SCREEN
 ;; #ALIAS# SELDEV                      = KERNAL_0.SELDEV
 
+;; #ALIAS# CHRIN                       = KERNAL_0.proxy_M1_CHRIN
+;; #ALIAS# CHROUT                      = KERNAL_0.proxy_M1_CHROUT
+
+;; #ALIAS# LOAD                        = KERNAL_0.proxy_M1_JLOAD
+;; #ALIAS# SAVE                        = KERNAL_0.proxy_M1_JSAVE
+
 ;; #ALIAS# monitor_exit                = KERNAL_0.m65_shadow_BZP
 ;; #ALIAS# monitor_memread_helper      = KERNAL_0.proxy_M1_memread
 ;; #ALIAS# monitor_memwrite_helper     = KERNAL_0.proxy_M1_memwrite
 ;; #ALIAS# monitor_jmpout              = KERNAL_0.proxy_M1_jmpout
 ;; #ALIAS# monitor_jmpout_ret          = KERNAL_0.proxy_M1_jmpout_ret
 
-;; #ALIAS# CHRIN                       = KERNAL_0.proxy_M1_CHRIN
+;; #ALIAS# m65_shadow_BZP              = KERNAL_0.m65_shadow_BZP
-;; #ALIAS# CHROUT                      = KERNAL_0.proxy_M1_CHROUT
 
 ;; #ALIAS# wedge_dos_monitor           = BASIC_0.wedge_dos_monitor
 

src/mon_m65/mon_command_jmp_jsr.s

@@ -66,10 +66,13 @@ Mon_Go_JSR_comon:
 	lda  ZR
 	pha
 
+	jsr  m65_shadow_BZP
 	jmp  monitor_jmpout
 
 Mon_JSR_ret:
 
+	jsr  m65_shadow_BZP
+
 	; Retrieve registers
 
 	pha

src/mon_m65/mon_command_load_save.s

@@ -32,8 +32,11 @@ Load_Save:
 	; Separate flow for SAVE
 
 	lda  VERCKK
-	cmp  #$02
+	cmp  #'S'
 	beq  Mon_Save
+   sec
+   sbc  #'L'
+   sta  VERCKK              ; 0 for load, other value for verify
 
 	; FALLTROUGH
 
@@ -52,10 +55,37 @@ Mon_Load_Verify:
 
 @got_unit:
 
-	; XXX to be finished
+	; Determine start address
 
-	jmp Main
+   lda  #$00
+   sta  Addr_Mode
+   jsr  Get_Val_To_LAC
+   beq  @no_startaddr
+   lda  Addr_Mode
+   +bne Mon_Error 
 
+   ; Load/Verify with fixed start address
+
+   ldx  Long_AC+0
+   ldy  Long_AC+1
+
+   lda #$00
+   +skip_2_bytes_trash_nvz
+
+@no_startaddr:
+
+   ; Load/Verify without fixed start address
+
+   lda  #$01
+
+@load:
+
+   sta  SA
+   lda  VERCKK
+   jsr  m65_shadow_BZP
+   jsr  LOAD
+
+   bra  Mon_Load_Save_Common
 
 Mon_Save:
 
@@ -64,89 +94,49 @@ Mon_Save:
 	jsr  Get_Val_To_LAC
 	+beq Mon_Error
 	jsr  Syntax_Byte_AC
+	lda  Long_AC+0
+	sta  FA
 
+   ; Determine start address
 
+   lda  #$00
+   sta  Addr_Mode
+   jsr  Get_Val_To_LAC
+   +bne Mon_Error
+   lda  Addr_Mode
+   +bne Mon_Error 
 
-	; XXX to be finished
+   lda Long_AC+1
+   pha
+   lda Long_AC+0
+   pha
+
+   ; Determine end address
+
+   jsr  Get_Val_To_LAC
+   +bne Mon_Error
+   lda  Addr_Mode
+   +bne Mon_Error 
+
+   inw  Long_AC+0
+   ldx  Long_AC+0
+   ldy  Long_AC+1
+
+   jsr  m65_shadow_BZP
+   pla                       ; set start address for SAVE            
+   sta  TXTTAB+0
+   pla
+   sta  TXTTAB+1
+   lda  #TXTTAB
+
+   jsr  SAVE
+
+   ; FALLTROUGH
+
+Mon_Load_Save_Common:
+
+   jsr  m65_shadow_BZP
+
+	; XXX to be finished - check for errors
 
 	jmp Main
-
-
-
-
-         ; LDY  #8
-         ; STY  SA
-         ; LDY  #0
-         ; STY  BA
-         ; STY  FNLEN
-         ; STY  FNBANK
-         ; STY  IOSTATUS
-         ; LDA  #>Mon_Data
-         ; STA  FNADR+1
-         ; LDA  #<Mon_Data
-         ; STA  FNADR
-; @skip    JSR  Get_Char          ; skip blanks
-         ; LBEQ Mon_Error
-         ; CMP  #' '
-         ; BEQ  @skip
-         ; CMP  #KEY_QUOTE        ; must be quote
-         ; LBNE Mon_Error
-
-         ; LDX  Buf_Index
-; @copyfn  LDA  BUF,X             ; copy filename
-         ; BEQ  @do               ; no more input
-         ; INX
-         ; CMP  #KEY_QUOTE
-         ; BEQ  @unit             ; end of filename
-         ; STA  (FNADR),Y         ; store to filename
-         ; INC  FNLEN
-         ; INY
-         ; CPY  #19               ; max = 16 plus prefix "@0:"
-         ; BCC  @copyfn
-         ; JMP  Mon_Error         ; filename too long
-
-; @unit    STX  Buf_Index         ; update read position
-         ; JSR  Get_Char
-         ; BEQ  @do               ; no more parameter
-         ; JSR  Get_LAC
-         ; BCS  @do
-         ; LDA  Long_AC           ; unit #
-         ; STA  FA
-         ; JSR  Get_LAC
-         ; BCS  @do
-         ; JSR  LAC_To_LPC        ; Long_PC = start address
-         ; STA  BA                ; Bank
-         ; JSR  Get_LAC           ; Long_AC = end address + 1
-         ; BCS  @load             ; no end address -> load/verify
-         ; JSR  Print_CR
-         ; LDX  Long_AC           ; X/Y = end address
-         ; LDY  Long_AC+1
-         ; LDA  VERCKK            ; A = load/verify/save
-         ; CMP  #'S'
-         ; LBNE Mon_Error         ; must be Save
-         ; LDA  #0
-         ; STA  SA                ; set SA for PRG
-         ; LDA  #Long_PC          ; Long_PC = start address
-         ; JSR  SAVE
-; @exit    JMP  Main
-
-; @do      LDA  VERCKK
-         ; CMP  #'V'              ; Verify
-         ; BEQ  @exec
-         ; CMP  #'L'              ; Load
-         ; LBNE Mon_Error
-         ; LDA  #0                ; 0 = LOAD
-; @exec    JSR  LOAD              ; A == 0 : LOAD else VERIFY
-         ; BBR4 IOSTATUS,@exit
-         ; LDA  VERCKK
-         ; LBEQ Mon_Error
-         ; LBCS Main
-         ; JSR  PRIMM
-         ; !pet " error",0
-         ; JMP  Main
-
-; @load    LDX  Long_PC
-         ; LDY  Long_PC+1
-         ; LDA  #0                ; 0 = use X/Y as load address
-         ; STA  SA                ; and ignore load address from file
-         ; BRA  @do

src/mon_m65/mon_helper_memory.s

@@ -1,6 +1,7 @@
 
 ; Monitor helper code - memory read and write
 
+
 Get_From_Memory_LAC:
 
 	jsr Exchange_LAC_LPC