mbf64: Add pow/exp

libsrc/math/mbf64/c/sccz80/___mbf64_setup_two_single.asm

@@ -0,0 +1,41 @@
+        SECTION         code_fp_mbf64
+
+        PUBLIC          ___mbf64_setup_single_two
+        EXTERN          ___mbf32_FPREG
+        EXTERN          ___mbf32_VALTYP
+
+
+; Used for the routines which accept single precision
+;
+; Entry: -
+; Stack: +0 defw return address
+;        +2 defw callee return address
+;        +4 defw right hand LSW
+;        +6 defw right hand NLSW
+;        +8 defw right hand NMSW
+;        +10 defw right hand MSW
+;        +12 defw left hand LSW
+;        +14 defw left hand NLSW
+;        +16 defw left hand NMSW
+;        +18 defw lefthand MSW
+___mbf64_setup_single_two:
+        ld      a,4
+        ld      (___mbf32_VALTYP),a
+        ld      hl,8
+        add     hl,sp
+        ld      de,___mbf32_FPREG               ;Store the right hand
+        ld      bc,4
+        ldir
+	ld	bc,4
+	add	hl,bc
+        ld      e,(hl)
+        inc     hl
+        ld      d,(hl)
+        inc     hl
+        ld      c,(hl)
+        inc     hl
+        ld      b,(hl)
+        pop     hl
+        push    ix
+        push    hl
+	ret

libsrc/math/mbf64/c/sccz80/exp.asm

@@ -0,0 +1,13 @@
+        SECTION code_fp_mbf64
+
+        PUBLIC  exp
+        EXTERN  ___mbf64_setup_two_single
+        EXTERN  ___mbf32_EXP
+        EXTERN  ___mbf64_return_single
+        EXTERN  msbios
+
+exp:
+        call    ___mbf64_setup_two_single
+        ld      ix,___mbf32_EXP
+        call    msbios
+        jp      ___mbf64_return_single

libsrc/math/mbf64/c/sccz80/pow.asm

@@ -0,0 +1,13 @@
+        SECTION code_fp_mbf64
+
+        PUBLIC  pow
+        EXTERN  ___mbf64_setup_two_single
+        EXTERN  ___mbf32_POW
+        EXTERN  ___mbf64_return_single
+        EXTERN  msbios
+
+pow:
+        call    ___mbf64_setup_two_single
+        ld      ix,___mbf32_POW
+        call    msbios
+        jp      ___mbf64_return_single