* Process machine ops.
*/
VOID
-machine(mp)
-struct mne *mp;
+machine(struct mne *mp)
{
- register unsigned op;
+ register unsigned op;
register int t, t1, v1;
- struct expr e, e1;
+ struct expr e, e1;
- clrexpr(&e);
- clrexpr(&e1);
+ clrexpr(&e);
+ clrexpr(&e1);
- op = mp->m_valu;
- switch (mp->m_type) {
+ op = mp->m_valu;
+ switch (mp->m_type) {
- case S_INH:
- outab(op);
- break;
+ case S_INH:
+ outab(op);
+ break;
- case S_JMP11:
- /* ACALL or AJMP. In Flat24 mode, this is a
- * 19 bit destination; in 8051 mode, this is a
- * 11 bit destination.
- *
- * The opcode is merged with the address in a
- * hack-o-matic fashion by the linker.
+ case S_JMP11:
+ /* ACALL or AJMP. In Flat24 mode, this is a
+ * 19 bit destination; in 8051 mode, this is a
+ * 11 bit destination.
+ *
+ * The opcode is merged with the address in a
+ * hack-o-matic fashion by the linker.
*/
- expr(&e, 0);
- if (flat24Mode)
- {
- outr19(&e, op, R_J19);
- }
- else
- {
- outr11(&e, op, R_J11);
- }
- break;
-
- case S_JMP16:
- /* LCALl or LJMP. In Flat24 mode, this is a 24 bit
- * destination; in 8051 mode, this is a 16 bit
- * destination.
- */
- expr(&e, 0);
- outab(op);
- if (flat24Mode)
- {
- outr24(&e, 0);
- }
- else
- {
- outrw(&e, 0);
- }
- break;
-
- case S_ACC:
+ expr(&e, 0);
+ if (flat24Mode)
+ {
+ outr19(&e, op, R_J19);
+ }
+ else
+ {
+ outr11(&e, op, R_J11);
+ }
+ break;
+
+ case S_JMP16:
+ /* LCALl or LJMP. In Flat24 mode, this is a 24 bit
+ * destination; in 8051 mode, this is a 16 bit
+ * destination.
+ */
+ expr(&e, 0);
+ outab(op);
+ if (flat24Mode)
+ {
+ outr24(&e, 0);
+ }
+ else
+ {
+ outrw(&e, 0);
+ }
+ break;
+
+ case S_ACC:
t = addr(&e);
- if (t != S_A)
- aerr();
- outab(op);
- break;
+ if (t != S_A)
+ aerr();
+ outab(op);
+ break;
- case S_TYP1:
- /* A, direct, @R0, @R1, R0 to R7. "INC" also allows DPTR */
+ case S_TYP1:
+ /* A, direct, @R0, @R1, R0 to R7. "INC" also allows DPTR */
t = addr(&e);
-
- switch (t) {
+
+ switch (t) {
case S_A:
- outab(op + 4);
+ outab(op + 4);
break;
case S_DIR:
case S_EXT:
- /* Direct is also legal */
- outab(op + 5);
+ /* Direct is also legal */
+ outab(op + 5);
outrb(&e, R_PAG0);
- break;
+ break;
case S_AT_R:
- outab(op + 6 + e.e_addr);
+ outab(op + 6 + e.e_addr);
break;
case S_REG:
- outab(op + 8 + e.e_addr);
+ outab(op + 8 + e.e_addr);
break;
case S_DPTR:
- if (op != 0)
- /* only INC (op=0) has DPTR mode */
- aerr();
+ if (op != 0)
+ /* only INC (op=0) has DPTR mode */
+ aerr();
else
- outab( 0xA3);
+ outab( 0xA3);
break;
default:
- aerr();
+ aerr();
}
- break;
+ break;
- case S_TYP2:
- /* A,#imm; A,direct; A,@R0; A,@R1; A,R0 to A,R7 */
+ case S_TYP2:
+ /* A,#imm; A,direct; A,@R0; A,@R1; A,R0 to A,R7 */
t = addr(&e);
- if (t != S_A)
- aerr();
+ if (t != S_A)
+ aerr();
comma();
t1 = addr(&e1);
-
- switch (t1) {
+
+ switch (t1) {
case S_IMMED:
- outab(op + 4);
- outrb(&e1, 0);
+ outab(op + 4);
+ outrb(&e1, 0);
break;
case S_DIR:
case S_EXT:
- outab(op + 5);
+ outab(op + 5);
outrb(&e1, R_PAG0);
break;
case S_AT_R:
- outab(op + 6 + e1.e_addr);
+ outab(op + 6 + e1.e_addr);
break;
case S_REG:
- outab(op + 8 + (e1.e_addr));
+ outab(op + 8 + (e1.e_addr));
break;
default:
- aerr();
+ aerr();
}
- break;
+ break;
- case S_TYP3:
- /* dir,A; dir,#imm;
- * A,#imm; A,direct; A,@R0; A,@R1; A,R0 to A,R7
+ case S_TYP3:
+ /* dir,A; dir,#imm;
+ * A,#imm; A,direct; A,@R0; A,@R1; A,R0 to A,R7
* C,direct; C,/direct
*/
t = addr(&e);
comma();
- t1 = addr(&e1);
+ t1 = addr(&e1);
switch (t) {
case S_DIR:
case S_EXT:
- switch (t1) {
+ switch (t1) {
case S_A:
- outab(op + 2);
+ outab(op + 2);
outrb(&e, R_PAG0);
break;
-
- case S_IMMED:
- outab(op + 3);
- outrb(&e, 0);
- outrb(&e1, 0);
+
+ case S_IMMED:
+ outab(op + 3);
+ outrb(&e, 0);
+ outrb(&e1, 0);
break;
default:
- aerr();
+ aerr();
}
- break;
+ break;
case S_A:
- switch (t1) {
- case S_IMMED:
- outab(op + 4);
- outrb(&e1, 0);
- break;
-
- case S_DIR:
- case S_EXT:
- outab(op + 5);
+ switch (t1) {
+ case S_IMMED:
+ outab(op + 4);
+ outrb(&e1, 0);
+ break;
+
+ case S_DIR:
+ case S_EXT:
+ outab(op + 5);
outrb(&e1, R_PAG0);
break;
- case S_AT_R:
- outab(op + 6 + e1.e_addr);
- break;
+ case S_AT_R:
+ outab(op + 6 + e1.e_addr);
+ break;
- case S_REG:
- outab(op + 8 + e1.e_addr);
- break;
+ case S_REG:
+ outab(op + 8 + e1.e_addr);
+ break;
- default:
- aerr();
+ default:
+ aerr();
}
break;
case S_C:
- /* XRL has no boolean version. Trap it */
- if (op == 0x60)
- aerr();
+ /* XRL has no boolean version. Trap it */
+ if (op == 0x60)
+ aerr();
- switch (t1) {
+ switch (t1) {
case S_DIR:
- case S_EXT:
- outab(op + 0x32);
+ case S_EXT:
+ outab(op + 0x32);
outrb(&e1, R_PAG0);
break;
-
+
case S_NOT_BIT:
- outab(op + 0x60);
- outrb(&e1, 0);
- break;
-
+ outab(op + 0x60);
+ outrb(&e1, 0);
+ break;
+
default:
- aerr();
- }
+ aerr();
+ }
break;
default:
- aerr();
- }
- break;
+ aerr();
+ }
+ break;
- case S_TYP4:
- /* A,direct; A,@R0; A,@R1; A,R0 to A,R7 */
+ case S_TYP4:
+ /* A,direct; A,@R0; A,@R1; A,R0 to A,R7 */
t = addr(&e);
- if (t != S_A)
- aerr();
+ if (t != S_A)
+ aerr();
comma();
t1 = addr(&e1);
- switch (t1) {
+ switch (t1) {
case S_DIR:
case S_EXT:
- outab(op + 5);
+ outab(op + 5);
outrb(&e1, R_PAG0);
break;
case S_AT_R:
- outab(op + 6 + e1.e_addr);
+ outab(op + 6 + e1.e_addr);
break;
case S_REG:
- outab(op + 8 + e1.e_addr);
+ outab(op + 8 + e1.e_addr);
break;
default:
- aerr();
+ aerr();
}
- break;
+ break;
- /* MOV instruction, all modes */
- case S_MOV:
+ /* MOV instruction, all modes */
+ case S_MOV:
t = addr(&e);
comma();
t1 = addr(&e1);
- switch (t) {
+ switch (t) {
case S_A:
- switch (t1) {
- case S_IMMED:
- outab(0x74);
- outrb(&e1, 0);
- break;
-
- case S_DIR:
- case S_EXT:
- outab(0xE5);
+ switch (t1) {
+ case S_IMMED:
+ outab(0x74);
+ outrb(&e1, 0);
+ break;
+
+ case S_DIR:
+ case S_EXT:
+ outab(0xE5);
outrb(&e1, R_PAG0);
break;
- case S_AT_R:
- outab(0xE6 + e1.e_addr);
- break;
+ case S_AT_R:
+ outab(0xE6 + e1.e_addr);
+ break;
- case S_REG:
- outab(0xE8 + e1.e_addr);
- break;
+ case S_REG:
+ outab(0xE8 + e1.e_addr);
+ break;
- default:
- aerr();
- }
+ default:
+ aerr();
+ }
break;
case S_REG:
- switch (t1) {
- case S_A:
- outab(0xF8 + e.e_addr);
- break;
+ switch (t1) {
+ case S_A:
+ outab(0xF8 + e.e_addr);
+ break;
- case S_IMMED:
- outab(0x78 + e.e_addr);
+ case S_IMMED:
+ outab(0x78 + e.e_addr);
outrb(&e1, 0);
break;
-
- case S_DIR:
- case S_EXT:
- outab(0xA8 + e.e_addr);
+
+ case S_DIR:
+ case S_EXT:
+ outab(0xA8 + e.e_addr);
outrb(&e1, R_PAG0);
break;
- default:
- aerr();
- }
+ default:
+ aerr();
+ }
break;
case S_DIR:
case S_EXT:
- switch (t1) {
- case S_A:
- outab(0xF5);
+ switch (t1) {
+ case S_A:
+ outab(0xF5);
outrb(&e, R_PAG0);
break;
- case S_IMMED:
- outab(0x75);
+ case S_IMMED:
+ outab(0x75);
outrb(&e, R_PAG0);
outrb(&e1, 0);
- break;
-
- case S_DIR:
- case S_EXT:
- outab(0x85);
+ break;
+
+ case S_DIR:
+ case S_EXT:
+ outab(0x85);
outrb(&e1, R_PAG0);
outrb(&e, R_PAG0);
break;
- case S_AT_R:
- outab(0x86 + e1.e_addr);
+ case S_AT_R:
+ outab(0x86 + e1.e_addr);
outrb(&e, R_PAG0);
break;
- case S_REG:
- outab(0x88 + e1.e_addr);
+ case S_REG:
+ outab(0x88 + e1.e_addr);
outrb(&e, R_PAG0);
break;
- case S_C:
- outab(0x92);
+ case S_C:
+ outab(0x92);
outrb(&e, R_PAG0);
break;
- default:
- aerr();
- }
+ default:
+ aerr();
+ }
break;
case S_AT_R:
- switch (t1) {
- case S_IMMED:
- outab(0x76 + e.e_addr);
- outrb(&e1, 0);
- break;
-
- case S_DIR:
- case S_EXT:
- outab(0xA6 + e.e_addr);
+ switch (t1) {
+ case S_IMMED:
+ outab(0x76 + e.e_addr);
+ outrb(&e1, 0);
+ break;
+
+ case S_DIR:
+ case S_EXT:
+ outab(0xA6 + e.e_addr);
outrb(&e1, R_PAG0);
break;
- case S_A:
- outab(0xF6 + e.e_addr);
- break;
+ case S_A:
+ outab(0xF6 + e.e_addr);
+ break;
- default:
- aerr();
- }
+ default:
+ aerr();
+ }
break;
case S_C:
- if ((t1 != S_DIR) && (t1 != S_EXT))
- aerr();
- outab(0xA2);
+ if ((t1 != S_DIR) && (t1 != S_EXT))
+ aerr();
+ outab(0xA2);
outrb(&e1, R_PAG0);
break;
case S_DPTR:
- if (t1 != S_IMMED)
- aerr();
- outab(0x90);
-
- /* mov DPTR, #immed: for Flat24 mode,
- * #immed is a 24 bit constant. For 8051,
- * it is a 16 bit constant.
- */
- if (flat24Mode)
- {
- outr24(&e1, 0);
- }
- else
- {
- outrw(&e1, 0);
- }
+ if (t1 != S_IMMED)
+ aerr();
+ outab(0x90);
+
+ /* mov DPTR, #immed: for Flat24 mode,
+ * #immed is a 24 bit constant. For 8051,
+ * it is a 16 bit constant.
+ */
+ if (flat24Mode)
+ {
+ outr24(&e1, 0);
+ }
+ else
+ {
+ outrw(&e1, 0);
+ }
break;
default:
- aerr();
- }
+ aerr();
+ }
break;
- case S_BITBR:
- /* Branch on bit set/clear */
- t = addr(&e);
- if ((t != S_DIR) && (t != S_EXT))
- aerr();
- outab(op);
+ case S_BITBR:
+ /* Branch on bit set/clear */
+ t = addr(&e);
+ if ((t != S_DIR) && (t != S_EXT))
+ aerr();
+ outab(op);
outrb(&e, R_PAG0);
comma();
- expr(&e1, 0);
- if (e1.e_base.e_ap == NULL || e1.e_base.e_ap == dot.s_area) {
- if ( e1.e_addr == dot.s_addr)
- v1 = -3;
- else
- v1 = e1.e_addr - dot.s_addr - 1;
- if (pass==2 && ((v1 < -128) || (v1 > 127)))
- aerr();
- outab(v1);
- } else {
- outrb(&e1, R_PCR);
- }
- if (e1.e_mode != S_USER)
- rerr();
- break;
-
- case S_BR:
- /* Relative branch */
- outab(op);
- expr(&e1, 0);
- if (e1.e_base.e_ap == NULL || e1.e_base.e_ap == dot.s_area) {
- if ( e1.e_addr == dot.s_addr)
- v1 = -2;
- else
- v1 = e1.e_addr - dot.s_addr - 1;
- if (pass == 2 && ((v1 < -128) || (v1 > 127)))
- aerr();
- outab(v1);
- } else {
- outrb(&e1, R_PCR);
- }
- if (e1.e_mode != S_USER)
- rerr();
- break;
+ expr(&e1, 0);
+ if (e1.e_base.e_ap == NULL || e1.e_base.e_ap == dot.s_area) {
+ if ( e1.e_addr == dot.s_addr)
+ v1 = -3;
+ else
+ v1 = e1.e_addr - dot.s_addr - 1;
+ if (pass==2 && ((v1 < -128) || (v1 > 127)))
+ aerr();
+ outab(v1);
+ } else {
+ outrb(&e1, R_PCR);
+ }
+ if (e1.e_mode != S_USER)
+ rerr();
+ break;
+
+ case S_BR:
+ /* Relative branch */
+ outab(op);
+ expr(&e1, 0);
+ if (e1.e_base.e_ap == NULL || e1.e_base.e_ap == dot.s_area) {
+ if ( e1.e_addr == dot.s_addr)
+ v1 = -2;
+ else
+ v1 = e1.e_addr - dot.s_addr - 1;
+ if (pass == 2 && ((v1 < -128) || (v1 > 127)))
+ aerr();
+ outab(v1);
+ } else {
+ outrb(&e1, R_PCR);
+ }
+ if (e1.e_mode != S_USER)
+ rerr();
+ break;
case S_CJNE:
- /* A,#; A,dir; @R0,#; @R1,#; Rn,# */
+ /* A,#; A,dir; @R0,#; @R1,#; Rn,# */
t = addr(&e);
comma();
t1 = addr(&e1);
switch (t) {
case S_A:
- if (t1 == S_IMMED) {
- outab(op + 4);
- outrb(&e1, 0);
+ if (t1 == S_IMMED) {
+ outab(op + 4);
+ outrb(&e1, 0);
}
- else if ((t1 == S_DIR) || (t1 == S_EXT)) {
- outab(op + 5);
+ else if ((t1 == S_DIR) || (t1 == S_EXT)) {
+ outab(op + 5);
outrb(&e1, R_PAG0);
}
else
- aerr();
+ aerr();
break;
case S_AT_R:
- outab(op + 6 + e.e_addr);
- if (t1 != S_IMMED)
- aerr();
- outrb(&e1, 0);
- break;
-
- case S_REG:
- outab(op + 8 + e.e_addr);
- if (t1 != S_IMMED)
- aerr();
- outrb(&e1, 0);
- break;
-
+ outab(op + 6 + e.e_addr);
+ if (t1 != S_IMMED)
+ aerr();
+ outrb(&e1, 0);
+ break;
+
+ case S_REG:
+ outab(op + 8 + e.e_addr);
+ if (t1 != S_IMMED)
+ aerr();
+ outrb(&e1, 0);
+ break;
+
default:
- aerr();
+ aerr();
}
/* branch destination */
comma();
- expr(&e1, 0);
- if (e1.e_base.e_ap == NULL || e1.e_base.e_ap == dot.s_area) {
- if ( e1.e_addr == dot.s_addr)
- v1 = -3;
- else
- v1 = e1.e_addr - dot.s_addr - 1;
- if (pass == 2 && ((v1 < -128) || (v1 > 127)))
- aerr();
- outab(v1);
- } else {
- outrb(&e1, R_PCR);
- }
- if (e1.e_mode != S_USER)
- rerr();
+ expr(&e1, 0);
+ if (e1.e_base.e_ap == NULL || e1.e_base.e_ap == dot.s_area) {
+ if ( e1.e_addr == dot.s_addr)
+ v1 = -3;
+ else
+ v1 = e1.e_addr - dot.s_addr - 1;
+ if (pass == 2 && ((v1 < -128) || (v1 > 127)))
+ aerr();
+ outab(v1);
+ } else {
+ outrb(&e1, R_PCR);
+ }
+ if (e1.e_mode != S_USER)
+ rerr();
break;
case S_DJNZ:
- /* Dir,dest; Reg,dest */
+ /* Dir,dest; Reg,dest */
t = addr(&e);
- switch (t) {
+ switch (t) {
- case S_DIR:
- case S_EXT:
+ case S_DIR:
+ case S_EXT:
outab(op + 5);
outrb(&e, R_PAG0);
+ v1 = -3;
break;
-
+
case S_REG:
- outab(op + 8 + e.e_addr);
+ outab(op + 8 + e.e_addr);
+ v1 = -2;
break;
default:
/* branch destination */
comma();
- expr(&e1, 0);
- if (e1.e_base.e_ap == NULL || e1.e_base.e_ap == dot.s_area) {
- if ( e1.e_addr == dot.s_addr)
- v1 = -2;
- else
- v1 = e1.e_addr - dot.s_addr - 1;
- if (pass == 2 && ((v1 < -128) || (v1 > 127)))
- aerr();
- outab(v1);
- } else {
- outrb(&e1, R_PCR);
- }
- if (e1.e_mode != S_USER)
- rerr();
- break;
-
- case S_JMP:
- /* @A+DPTR */
+ expr(&e1, 0);
+ if (e1.e_base.e_ap == NULL || e1.e_base.e_ap == dot.s_area) {
+ if ( e1.e_addr != dot.s_addr)
+ v1 = e1.e_addr - dot.s_addr - 1;
+ if (pass == 2 && ((v1 < -128) || (v1 > 127)))
+ aerr();
+ outab(v1);
+ } else {
+ outrb(&e1, R_PCR);
+ }
+ if (e1.e_mode != S_USER)
+ rerr();
+ break;
+
+ case S_JMP:
+ /* @A+DPTR */
t = addr(&e);
if (t != S_AT_ADP)
- aerr();
+ aerr();
outab(op);
- break;
+ break;
case S_MOVC:
- /* A,@A+DPTR A,@A+PC */
+ /* A,@A+DPTR A,@A+PC */
t = addr(&e);
if (t != S_A)
- aerr();
- comma();
+ aerr();
+ comma();
t1 = addr(&e1);
if (t1 == S_AT_ADP)
- outab(0x93);
+ outab(0x93);
else if (t1 == S_AT_APC)
- outab(0x83);
- else
- aerr();
- break;
+ outab(0x83);
+ else
+ aerr();
+ break;
case S_MOVX:
- /* A,@DPTR A,@R0 A,@R1 @DPTR,A @R0,A @R1,A */
+ /* A,@DPTR A,@R0 A,@R1 @DPTR,A @R0,A @R1,A */
t = addr(&e);
- comma();
+ comma();
t1 = addr(&e1);
switch (t) {
case S_A:
- switch (t1) {
+ switch (t1) {
case S_AT_DP:
- outab(0xE0);
+ outab(0xE0);
break;
case S_AT_R:
- outab(0xE2 + e1.e_addr);
+ outab(0xE2 + e1.e_addr);
break;
default:
- aerr();
+ aerr();
}
break;
case S_AT_DP:
if (t1 == S_A)
- outab(0xF0);
+ outab(0xF0);
else
- aerr();
+ aerr();
break;
case S_AT_R:
if (t1 == S_A)
- outab(0xF2 + e.e_addr);
+ outab(0xF2 + e.e_addr);
else
- aerr();
+ aerr();
break;
default:
- aerr();
- }
- break;
+ aerr();
+ }
+ break;
- /* MUL/DIV A,B */
- case S_AB:
+ /* MUL/DIV A,B */
+ case S_AB:
t = addr(&e);
- if (t != S_RAB) aerr();
+ if (t != S_RAB) aerr();
outab(op);
- break;
+ break;
- /* CLR or CPL: A, C, or bit */
+ /* CLR or CPL: A, C, or bit */
case S_ACBIT:
t = addr(&e);
switch (t) {
case S_A:
- if (op == 0xB2)
- outab(0xF4);
+ if (op == 0xB2)
+ outab(0xF4);
else
- outab(0xE4);
- break;
+ outab(0xE4);
+ break;
case S_C:
- outab(op+1);
- break;
+ outab(op+1);
+ break;
case S_DIR:
- case S_EXT:
- outab(op);
+ case S_EXT:
+ outab(op);
outrb(&e, R_PAG0);
break;
default:
- aerr();
+ aerr();
}
- break;
+ break;
- /* SETB C or bit */
+ /* SETB C or bit */
case S_SETB:
t = addr(&e);
switch (t) {
case S_C:
- outab(op+1);
- break;
+ outab(op+1);
+ break;
case S_DIR:
- case S_EXT:
- outab(op);
+ case S_EXT:
+ outab(op);
outrb(&e, R_PAG0);
break;
default:
- aerr();
+ aerr();
}
- break;
+ break;
- /* direct */
- case S_DIRECT:
+ /* direct */
+ case S_DIRECT:
t = addr(&e);
if ((t != S_DIR) && (t != S_EXT)) {
- aerr();
- break;
+ aerr();
+ break;
}
outab(op);
outrb(&e, R_PAG0);
break;
- /* XCHD A,@Rn */
+ /* XCHD A,@Rn */
case S_XCHD:
t = addr(&e);
- if (t != S_A)
- aerr();
+ if (t != S_A)
+ aerr();
comma();
t1 = addr(&e1);
- switch (t1) {
+ switch (t1) {
case S_AT_R:
- outab(op + e1.e_addr);
+ outab(op + e1.e_addr);
break;
default:
- aerr();
+ aerr();
}
- break;
+ break;
- default:
- err('o');
- }
+ default:
+ err('o');
+ }
}
/*
int
comma()
{
- if (getnb() != ',')
- qerr();
- return(1);
+ if (getnb() != ',')
+ qerr();
+ return(1);
}
/*
static int beenHere=0; /* set non-zero if we have done that... */
struct sym *sp;
struct PreDef *pd;
-
- /* First time only, add the pe-defined symbols to the symbol table*/
+
+ /* First time only, add the pre-defined symbols to the symbol table*/
if (beenHere == 0) {
pd = preDef;
while (*pd->id) {
sp = lookup(pd->id);
if (sp->s_type == S_NEW) {
sp->s_addr = pd->value;
- sp->s_type = S_DIR;
+ sp->s_type = S_DIR;
}
pd++;
}
projects / fw / sdcc / commitdiff