Add config option for transcendental BASIC functions

Also move all transcendental functions to a separate source directory
Turn off these functions for all configurations for now

Makefile

@@ -35,6 +35,7 @@ SRCDIR_BASIC   = $(SRCDIR_COMMON) \
                  src/basic/math \
                  src/basic/math_consts \
                  src/basic/math_mov \
+                 src/basic/math_trans \
                  src/basic/memory \
                  src/basic/print \
                  src/basic/rom_revision \

src/,,config_custom.s

@@ -114,6 +114,11 @@
 ;; #CONFIG# BCD_SAFE_INTERRUPTS        YES
 
 
+; --- BASIC features
+
+;; #CONFIG# TRANSCENDENTAL_FUNCTIONS   NO
+
+
 ; --- Eye candy
 
 ;; #CONFIG# COLORS_BRAND               NO

src/,,config_cx16.s

@@ -51,6 +51,11 @@
 ;; #CONFIG# BCD_SAFE_INTERRUPTS        YES
 
 
+; --- BASIC features
+
+;; #CONFIG# TRANSCENDENTAL_FUNCTIONS   NO
+
+
 ; --- Eye candy
 
 ;; #CONFIG# COLORS_BRAND               NO

src/,,config_generic_crt.s

@@ -105,6 +105,11 @@
 ;; #CONFIG# BCD_SAFE_INTERRUPTS        YES
 
 
+; --- BASIC features
+
+;; #CONFIG# TRANSCENDENTAL_FUNCTIONS   NO
+
+
 ; --- Eye candy
 
 ;; #CONFIG# COLORS_BRAND               YES

src/,,config_mega65.s

@@ -88,6 +88,11 @@
 ;; #CONFIG# BCD_SAFE_INTERRUPTS        YES
 
 
+; --- BASIC features
+
+;; #CONFIG# TRANSCENDENTAL_FUNCTIONS   NO
+
+
 ; --- Built-in DOS configuration
 
 ;; #CONFIG# UNIT_SDCARD                27

src/,,config_testing_38K.s

@@ -103,6 +103,11 @@
 ;; #CONFIG# BCD_SAFE_INTERRUPTS        YES
 
 
+; --- BASIC features
+
+;; #CONFIG# TRANSCENDENTAL_FUNCTIONS   NO
+
+
 ; --- Eye candy
 
 ;; #CONFIG# COLORS_BRAND               NO

src/,,config_testing_60K.s

@@ -103,6 +103,11 @@
 ;; #CONFIG# BCD_SAFE_INTERRUPTS        YES
 
 
+; --- BASIC features
+
+;; #CONFIG# TRANSCENDENTAL_FUNCTIONS   NO
+
+
 ; --- Eye candy
 
 ;; #CONFIG# COLORS_BRAND               NO

src/,,config_ultimate64.s

@@ -93,6 +93,11 @@
 ;; #CONFIG# BCD_SAFE_INTERRUPTS        YES
 
 
+; --- BASIC features
+
+;; #CONFIG# TRANSCENDENTAL_FUNCTIONS   NO
+
+
 ; --- Eye candy
 
 ;; #CONFIG# COLORS_BRAND               YES

src/,,config_ultimate64_crt.s

@@ -95,6 +95,11 @@
 ;; #CONFIG# BCD_SAFE_INTERRUPTS        YES
 
 
+; --- BASIC features
+
+;; #CONFIG# TRANSCENDENTAL_FUNCTIONS   NO
+
+
 ; --- Eye candy
 
 ;; #CONFIG# COLORS_BRAND               YES

src/basic/math_trans/b9ea.log_FAC1.s

@@ -22,6 +22,8 @@
 ; 5. Multiply by LOG(2) giving LOG(X)
 
 
+!ifdef CONFIG_TRANSCENDENTAL_FUNCTIONS {
+
 
 log_FAC1:
     lda FAC1_exponent           ; Store exponent for later
@@ -62,3 +64,6 @@ log_FAC1:
     ldy #>const_LOG_2           ; FAC1 <- FAC1 * log(2.0)
     lda #<const_LOG_2
     jmp mul_MEM_FAC1
+
+
+}

src/basic/math_trans/bf71.sqr_FAC1.s

@@ -15,8 +15,14 @@
 ; - https://codebase64.org/doku.php?id=base:kernal_floating_point_mathematics
 ;
 
+!ifdef CONFIG_TRANSCENDENTAL_FUNCTIONS {
+
+
 sqr_FAC1:
 
 	jsr mov_FAC1_FAC2
 	
 	; FALLLTROUGH to sqr_FAC2
+
+
+}

src/basic/math_trans/bf78.pwr_FAC2_MEM.s

@@ -17,8 +17,14 @@
 ; - https://codebase64.org/doku.php?id=base:kernal_floating_point_mathematics
 ;
 
+!ifdef CONFIG_TRANSCENDENTAL_FUNCTIONS {
+
+
 pwr_FAC2_MEM:
 
 	jsr mov_MEM_FAC1
 
 	; FALLTROUGH to pwr_FAC2_FAC1
+
+
+}

src/basic/math_trans/e043.poly1_FAC1.s

@@ -21,6 +21,9 @@
 ; - https://www.c64-wiki.com/wiki/POLY1
 
 
+!ifdef CONFIG_TRANSCENDENTAL_FUNCTIONS {
+
+
 poly1_FAC1:
     jsr store_YA_in_ZP              ; Store YA in second INDEX pointer
     jsr mov_r_FAC1_TMP1             ; TMPF1 <- FAC1  (rounds)
@@ -30,3 +33,6 @@ poly1_FAC1:
     ldy #$00                        ; FAC1 <- FAC1 * TEMPF1
     lda #TEMPF1
     jmp mul_MEM_FAC1
+
+
+}

src/basic/math_trans/e059.poly2_FAC1.s

@@ -24,6 +24,9 @@
 ;
 
 
+!ifdef CONFIG_TRANSCENDENTAL_FUNCTIONS {
+
+
 poly2_FAC1:
     jsr store_YA_in_ZP
 
@@ -67,3 +70,6 @@ store_YA_in_ZP:     ; Used also by poly1
     sty INDEX+3     ; Store YA in second INDEX pointer
     sta INDEX+2
     rts
+
+
+}

src/basic/math_trans/e264.cos_FAC1.s

@@ -13,9 +13,16 @@
 ; - https://codebase64.org/doku.php?id=base:kernal_floating_point_mathematics
 ;
 
+
+!ifdef CONFIG_TRANSCENDENTAL_FUNCTIONS {
+
+
 COS:
     ldy #>const_HALF_PI
     lda #<const_HALF_PI
     jsr add_MEM_FAC1
     
     ; FALLTHROUGH to SIN
+
+
+}

src/basic/math_trans/e26b.sin_FAC1.s

@@ -12,6 +12,8 @@
 ; - https://www.c64-wiki.com/wiki/SIN
 
 
+!ifdef CONFIG_TRANSCENDENTAL_FUNCTIONS {
+
 
 sin_FAC1:
 
@@ -53,3 +55,6 @@ sin_next:
     ldy #>poly_sin
     lda #<poly_sin
     jmp poly1_FAC1
+    
+
+}

src/basic/math_trans/e2b4.tan_FAC1.s

@@ -13,6 +13,10 @@
 
 ; tan(x) = sin(x) / cos(x)
 
+
+!ifdef CONFIG_TRANSCENDENTAL_FUNCTIONS {
+
+
 tan_FAC1:
     jsr mov_r_FAC1_TMP1         ; TMP1 = x
     jsr sin_FAC1                ; FAC1 = sin(x)
@@ -25,3 +29,6 @@ tan_FAC1:
     ldy #0
     jsr mov_MEM_FAC2            ; FAC2 = sin(x)
     jmp div_FAC2_FAC1           ; FAC1 = tan(x)
+
+
+}

src/basic/math_trans/e30e.atn_FAC1.s

@@ -19,6 +19,9 @@
 ; 5. Adjust sign of result and offset with pi/2 if needed as per above
 
 
+!ifdef CONFIG_TRANSCENDENTAL_FUNCTIONS {
+
+
 atn_FAC1:
     lda FAC1_sign               ; Save sign of FAC1 on the stack
     pha
@@ -55,3 +58,6 @@ atn_skipoffset:
     
 atn_out:
     rts
+
+
+}

src/basic/math_trans/poly_atn.s

@@ -5,6 +5,10 @@
 
 ; Polynomial for the atn function
 
+
+!ifdef CONFIG_TRANSCENDENTAL_FUNCTIONS {
+
+
 poly_atn:
 
     !byte $0B                          ; series length - 1
@@ -21,3 +25,6 @@ poly_atn:
     +PUT_CONST_POLY_ATN_10
     +PUT_CONST_POLY_ATN_11
     +PUT_CONST_POLY_ATN_12
+
+
+}

src/basic/math_trans/poly_exp.s

@@ -5,6 +5,10 @@
 
 ; Polynomial for the exponential function
 
+
+!ifdef CONFIG_TRANSCENDENTAL_FUNCTIONS {
+
+
 poly_exp:
 
     !byte $07                          ; series length - 1
@@ -17,3 +21,6 @@ poly_exp:
     +PUT_CONST_POLY_EXP_6
     +PUT_CONST_POLY_EXP_7
     +PUT_CONST_POLY_EXP_8
+
+
+}

src/basic/math_trans/poly_log.s

@@ -5,6 +5,10 @@
 
 ; Polynomial for the logarithm function
 
+
+!ifdef CONFIG_TRANSCENDENTAL_FUNCTIONS {
+
+
 poly_log:
 
     !byte $03                          ; series length - 1
@@ -13,3 +17,6 @@ poly_log:
     +PUT_CONST_POLY_LOG_2
     +PUT_CONST_POLY_LOG_3
     +PUT_CONST_POLY_LOG_4
+
+
+}

src/basic/math_trans/poly_sin.s

@@ -6,6 +6,9 @@
 ; Polynomial for the sine function
 
 
+!ifdef CONFIG_TRANSCENDENTAL_FUNCTIONS {
+
+
 poly_sin:
 
 	!byte $05                          ; series length - 1
@@ -21,3 +24,6 @@ poly_sin:
 ; Constant 0.75 needed for sine calculation
 sin_three_quarters:
     !byte $80, $40, $00, $00, $00
+
+
+}

strings/A390034C

@@ -0,0 +1,3 @@
+$A3 + BCC $03 + JMP fragment
+
+Fragments

strings/A6A9012CA9

@@ -0,0 +1,3 @@
+$A6 + LDA #$01 + BIT fragment
+
+Fragments

strings/B0A90085

@@ -0,0 +1,3 @@
+$B0 + LDA #$00 + STA fragment
+
+Fragments

strings/E0A90020

@@ -0,0 +1,3 @@
+$E0 + LDA #$00 + JSR fragment
+
+Fragments