From 180d3388d6563509b80b5eff26aabd273e3189ee Mon Sep 17 00:00:00 2001 From: carl Date: Mon, 25 Mar 2019 00:11:43 +0800 Subject: [PATCH] Add function prototypes. --- mach/m68k2/as/mach1.c | 30 ++++++++++++++++ mach/m68k2/as/mach5.c | 79 ++++++++++++++++++++----------------------- 2 files changed, 67 insertions(+), 42 deletions(-) diff --git a/mach/m68k2/as/mach1.c b/mach/m68k2/as/mach1.c index 173556b5c..adbd5cb2e 100644 --- a/mach/m68k2/as/mach1.c +++ b/mach/m68k2/as/mach1.c @@ -76,3 +76,33 @@ short eamode[] = { /* 074L */ DTA|MEM |PUTL | (RELO4 )<<8, }; #endif + +/* 680x0 specific instructions */ +void ea_1(int sz, int bits); +void ea_2(int sz, int bits); +void indexmode(int hibyte); +void checksize(int sz, int bits); +void test68010(void); +void badoperand(void); +void shift_op(int opc, int sz); +void bitop(int opc); +void add(int opc, int sz); +void and(int opc, int sz); +int to_dreg(int opc, int sz, int bits); +int from_dreg(int opc, int sz, int bits); +void cmp(int sz); +void move(int sz); +void move_special(int sz); +int reverse(register int regs, int max); +void movem(int dr, int sz, int regs); +void movep(int sz); +void branch(int opc, expr_t exp); +void ea5x73(int rg, int sz); +void ea707172(int sz); +void ea6x(int rg, int ir, int sz); +void ea72(void); +void ea73(int ri, int sz); +void Xnofit(void); +void fbranch(int opc, expr_t exp); +void ch_sz_dreg(int size, int mode); +void check_fsize(int sz, int size); diff --git a/mach/m68k2/as/mach5.c b/mach/m68k2/as/mach5.c index bde0f6580..9e121f4e4 100644 --- a/mach/m68k2/as/mach5.c +++ b/mach/m68k2/as/mach5.c @@ -8,8 +8,7 @@ * Motorola 68000/68010 auxiliary functions */ -static int -extension_offset() +static int extension_offset(void) { switch(curr_instr) { case MOVEM: @@ -25,9 +24,9 @@ extension_offset() return 2; } -ea_1(sz, bits) +void ea_1(int sz, int bits) { - register flag; + register int flag; if (mrg_1 > 074) serror("no specials"); @@ -61,7 +60,7 @@ ea_1(sz, bits) emit2(loww(exp_1.val)); } -ea_2(sz, bits) +void ea_2(int sz, int bits) { mrg_1 = mrg_2; exp_1 = exp_2; @@ -69,30 +68,30 @@ ea_2(sz, bits) ea_1(sz, bits); } -indexmode(hibyte) +void indexmode(int hibyte) { Xfit(fitb(exp_2.val)); exp_2.val = hibyte | lowb(exp_2.val); } -checksize(sz, bits) +void checksize(int sz, int bits) { if ((bits & (1 << (sz>>6))) == 0) serror("bad size"); } -test68010() +void test68010(void) { if (model != 1 && pass == PASS_3) warning("68010 instruction"); } -badoperand() +void badoperand(void) { serror("bad operands"); } -shift_op(opc, sz) +void shift_op(int opc, int sz) { if (mrg_1 < 010 && mrg_2 < 010) { emit2((opc&0170470) | sz | mrg_1<<9 | mrg_2); @@ -113,9 +112,9 @@ shift_op(opc, sz) ea_2(SIZE_W, MEM|ALT); } -bitop(opc) +void bitop(int opc) { - register bits; + register int bits; bits = DTA|ALT; if (opc == 0 && (mrg_1 < 010 || mrg_2 != 074)) @@ -134,7 +133,7 @@ bitop(opc) badoperand(); } -add(opc, sz) +void add(int opc, int sz) { if ((mrg_2 & 070) == 010) checksize(sz, 2|4); @@ -168,7 +167,7 @@ add(opc, sz) badoperand(); } -and(opc, sz) +void and(int opc, int sz) { if (mrg_1 == 074 && mrg_2 >= 076) { /* ccr or sr */ if (sz != SIZE_NON) @@ -194,7 +193,7 @@ and(opc, sz) badoperand(); } -to_dreg(opc, sz, bits) +int to_dreg(int opc, int sz, int bits) { if ((mrg_2 & 070) != 000) return(0); @@ -203,7 +202,7 @@ to_dreg(opc, sz, bits) return(1); } -from_dreg(opc, sz, bits) +int from_dreg(int opc, int sz, int bits) { if ((mrg_1 & 070) != 000) return(0); @@ -212,9 +211,9 @@ from_dreg(opc, sz, bits) return(1); } -cmp(sz) +void cmp(int sz) { - register opc; + register int opc; if ((mrg_1&070) == 030 && (mrg_2&070) == 030) { emit2(0130410 | sz | (mrg_1&7) | (mrg_2&7)<<9); @@ -259,9 +258,9 @@ cmp(sz) badoperand(); } -move(sz) +void move(int sz) { - register opc; + register int opc; if (mrg_1 > 074 || mrg_2 > 074) { move_special(sz); @@ -291,7 +290,7 @@ move(sz) ea_2(sz, ALT); } -move_special(sz) +void move_special(int sz) { if (mrg_2 >= 076) { if (sz != SIZE_NON) @@ -322,9 +321,7 @@ move_special(sz) badoperand(); } -int -reverse(regs, max) - register int regs; +int reverse(register int regs, int max) { register int r, i; @@ -337,9 +334,9 @@ reverse(regs, max) return regs; } -movem(dr, sz, regs) +void movem(int dr, int sz, int regs) { - register i; + register int i; if ((mrg_2>>3) == 04) { regs = reverse(regs, 16); @@ -359,7 +356,7 @@ movem(dr, sz, regs) ea_2(sz, i); } -movep(sz) +void movep(int sz) { checksize(sz, 2|4); if (mrg_1<010 && (mrg_2&070)==050) { @@ -375,10 +372,9 @@ movep(sz) badoperand(); } -branch(opc, exp) -expr_t exp; +void branch(int opc, expr_t exp) { - register sm; + register int sm; exp.val -= (DOTVAL + 2); if ((pass == PASS_2) @@ -406,7 +402,7 @@ expr_t exp; } } -ea5x73(rg, sz) +void ea5x73(int rg, int sz) { if ((exp_2.typ & ~S_DOT) == DOTTYP) { /* pc relative with index */ @@ -426,9 +422,9 @@ ea5x73(rg, sz) badoperand(); } -ea707172(sz) +void ea707172(int sz) { - register sm; + register int sm; mrg_2 = 071; switch (sz) { @@ -474,20 +470,20 @@ ea707172(sz) } } -ea6x(rg, ir, sz) +void ea6x(int rg, int ir, int sz) { mrg_2 = 060 | rg; checksize(sz, 2|4); indexmode(ir<<12 | (sz&0200)<<4); } -ea72() +void ea72(void) { mrg_2 = 072; exp_2.val -= (DOTVAL + extension_offset()); } -ea73(ri, sz) +void ea73(int ri, int sz) { mrg_2 = 073; exp_2.val -= (DOTVAL + extension_offset()); @@ -495,15 +491,14 @@ ea73(ri, sz) indexmode(ri<<12 | (sz&0200)<<4); } -Xnofit() +void Xnofit(void) { if (pass == PASS_3) serror("too big"); } -fbranch(opc, exp) -expr_t exp; +void fbranch(int opc, expr_t exp) { - register sm; + register int sm; exp.val -= (DOTVAL + 2); if ((pass == PASS_2) @@ -528,14 +523,14 @@ expr_t exp; emit4(exp.val); } -ch_sz_dreg(size, mode) +void ch_sz_dreg(int size, int mode) { if (mode == 0 && (size == FSIZE_X || size == FSIZE_P || size == FSIZE_D)) serror("illegal size for data register"); } -check_fsize(sz, size) +void check_fsize(int sz, int size) { if (sz != size) serror("bad size"); }